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Gene Information

Gene symbol: APLP2

Gene name: amyloid beta (A4) precursor-like protein 2

HGNC ID: 598

Synonyms: APPH

Related Genes

# Gene Symbol Number of hits
1 ACCS 1 hits
2 ACHE 1 hits
3 ADAM17 1 hits
4 ADCY10 1 hits
5 ADCYAP1 1 hits
6 ADIPOQ 1 hits
7 ADM 1 hits
8 ADRA1D 1 hits
9 AFM 1 hits
10 AGT 1 hits
11 AHSG 1 hits
12 AIF1 1 hits
13 AKT1 1 hits
14 ALB 1 hits
15 ALPI 1 hits
16 AMY2A 1 hits
17 ANXA5 1 hits
18 APCS 1 hits
19 APOA1 1 hits
20 APOA2 1 hits
21 APOE 1 hits
22 APP 1 hits
23 APTX 1 hits
24 ASIP 1 hits
25 AVP 1 hits
26 B2M 1 hits
27 BACE1 1 hits
28 BACE2 1 hits
29 BAX 1 hits
30 BCL2 1 hits
31 BDNF 1 hits
32 C4BPA 1 hits
33 CALCA 1 hits
34 CAP1 1 hits
35 CASP1 1 hits
36 CASP3 1 hits
37 CASP9 1 hits
38 CAT 1 hits
39 CCK 1 hits
40 CCL2 1 hits
41 CCL3 1 hits
42 CCL5 1 hits
43 CD14 1 hits
44 CD36 1 hits
45 CD4 1 hits
46 CD44 1 hits
47 CDK5 1 hits
48 CDKN1A 1 hits
49 CDKN1B 1 hits
50 CEACAM6 1 hits
51 CFD 1 hits
52 CHAT 1 hits
53 CHGA 1 hits
54 CLPB 1 hits
55 CNBP 1 hits
56 COL1A1 1 hits
57 COX8A 1 hits
58 CP 1 hits
59 CPB1 1 hits
60 CPE 1 hits
61 CRP 1 hits
62 CST3 1 hits
63 CTGF 1 hits
64 CTSS 1 hits
65 CXCL1 1 hits
66 CXCL10 1 hits
67 CXCL2 1 hits
68 CYCS 1 hits
69 DDEF1 1 hits
70 DES 1 hits
71 DMD 1 hits
72 DPEP3 1 hits
73 DPP4 1 hits
74 EGF 1 hits
75 ELN 1 hits
76 ENO2 1 hits
77 ENPEP 1 hits
78 ENPP1 1 hits
79 FAP 1 hits
80 FAS 1 hits
81 FBP2 1 hits
82 FCAMR 1 hits
83 FETUB 1 hits
84 FUS 1 hits
85 G6PC 1 hits
86 G6PC2 1 hits
87 GAL 1 hits
88 GAST 1 hits
89 GCG 1 hits
90 GCK 1 hits
91 GFAP 1 hits
92 GHRH 1 hits
93 GHRL 1 hits
94 GIP 1 hits
95 GLP1R 1 hits
96 GPLD1 1 hits
97 GSK3A 1 hits
98 GTF2A1 1 hits
99 GTF2H1 1 hits
100 HAAO 1 hits
101 HBB 1 hits
102 HHIP 1 hits
103 HLA-A 1 hits
104 HMGB1 1 hits
105 HMX1 1 hits
106 HP 1 hits
107 HPS5 1 hits
108 HPSE 1 hits
109 HSD11B1 1 hits
110 HSPA1A 1 hits
111 HSPA5 1 hits
112 HSPD1 1 hits
113 HSPG2 1 hits
114 HTT 1 hits
115 IAPP 1 hits
116 ICAM1 1 hits
117 IDDM2 1 hits
118 IDE 1 hits
119 IGF1 1 hits
120 IGF1R 1 hits
121 IL10 1 hits
122 IL18 1 hits
123 IL1A 1 hits
124 IL1B 1 hits
125 IL6 1 hits
126 IL8 1 hits
127 IL8RA 1 hits
128 INS 1 hits
129 INSR 1 hits
130 IRS1 1 hits
131 ISL1 1 hits
132 ITGAM 1 hits
133 LBP 1 hits
134 LDHA 1 hits
135 LDHC 1 hits
136 LDLR 1 hits
137 LEP 1 hits
138 LPAL2 1 hits
139 LRP1 1 hits
140 MAPK1 1 hits
141 MAPK10 1 hits
142 MAPK8 1 hits
143 MAPT 1 hits
144 MEFV 1 hits
145 MIF 1 hits
146 MIRN375 1 hits
147 MME 1 hits
148 MMEL1 1 hits
149 MMP2 1 hits
150 MMP9 1 hits
151 NES 1 hits
152 NEUROD1 1 hits
153 NEUROG3 1 hits
154 NGF 1 hits
155 NKX6-1 1 hits
156 NKX6-2 1 hits
157 NLRP3 1 hits
158 NNAT 1 hits
159 NOTCH3 1 hits
160 NPY 1 hits
161 NUCB1 1 hits
162 OGT 1 hits
163 ORM2 1 hits
164 PAX4 1 hits
165 PAX6 1 hits
166 PCSK1 1 hits
167 PCSK2 1 hits
168 PDX1 1 hits
169 PIGR 1 hits
170 PIK3CA 1 hits
171 PIK3CG 1 hits
172 PIK3R1 1 hits
173 PLAT 1 hits
174 PLG 1 hits
175 PPARG 1 hits
176 PPY 1 hits
177 PRKAA1 1 hits
178 PRKAR2A 1 hits
179 PRNP 1 hits
180 PSEN1 1 hits
181 PSEN2 1 hits
182 PSENEN 1 hits
183 PSMD9 1 hits
184 PTPRN 1 hits
185 PTPRN2 1 hits
186 PYY 1 hits
187 REN 1 hits
188 RETN 1 hits
189 RPS27A 1 hits
190 S100A1 1 hits
191 SAA 1 hits
192 SAA1 1 hits
193 SAA2 1 hits
194 SELP 1 hits
195 SERPINA1 1 hits
196 SERPINE1 1 hits
197 SFTPC 1 hits
198 SHBG 1 hits
199 SILV 1 hits
200 SLC2A1 1 hits
201 SLC2A2 1 hits
202 SLC37A4 1 hits
203 SLC7A10 1 hits
204 SLURP1 1 hits
205 SNCA 1 hits
206 SOCS3 1 hits
207 SOD1 1 hits
208 SORL1 1 hits
209 SST 1 hits
210 SSTR5 1 hits
211 SUCLA2 1 hits
212 SUCLG2 1 hits
213 SYP 1 hits
214 TGFA 1 hits
215 TGFB1 1 hits
216 TLR2 1 hits
217 TLR4 1 hits
218 TM4SF1 1 hits
219 TMEM27 1 hits
220 TNF 1 hits
221 TNMD 1 hits
222 TP63 1 hits
223 TTR 1 hits
224 TXNDC9 1 hits
225 UBB 1 hits
226 UCP2 1 hits
227 VCAM1 1 hits
228 VEGFA 1 hits
229 VWF 1 hits
230 VWS 1 hits
231 YWHAQ 1 hits

Related Sentences

# PMID Sentence
1 47333 Using the radioactively-labeled alkaline-degraded acid-soluble fraction of amyloid ([ 125I ]DAA), we developed a radioimmunoassay for the previously described amyloid-related component of the human serum (SAA).
2 416984 The quantity of insular amyloid correlated significantly with glucose clearance in intravenous glucose tolerance tests and with serum glucose, triglycerides, immunoreactive insulin, and prebetallipoprotein measured after an overnight fast.
3 970128 The combination of haematoxylin-eosin, elastin (Weigert), alkaline Congo red and Sirius red for amyloid and PTAH is specially to be recommended.
4 1282806 Characterization of the human islet amyloid polypeptide/amylin gene transcripts: identification of a new polyadenylation site.
5 1282806 Islet amyloid polypeptide (IAPP) or Amylin is synthesized by the pancreatic beta-cells.
6 1282806 IAPP is the major component of islet amyloid in the pancreas of patients with non-insulin-dependent diabetes mellitus.
7 1282806 Characterization of the human islet amyloid polypeptide/amylin gene transcripts: identification of a new polyadenylation site.
8 1282806 Islet amyloid polypeptide (IAPP) or Amylin is synthesized by the pancreatic beta-cells.
9 1282806 IAPP is the major component of islet amyloid in the pancreas of patients with non-insulin-dependent diabetes mellitus.
10 1282806 Characterization of the human islet amyloid polypeptide/amylin gene transcripts: identification of a new polyadenylation site.
11 1282806 Islet amyloid polypeptide (IAPP) or Amylin is synthesized by the pancreatic beta-cells.
12 1282806 IAPP is the major component of islet amyloid in the pancreas of patients with non-insulin-dependent diabetes mellitus.
13 1299966 [A novel hormone in islet of pancreas--islet amyloid polypeptide].
14 1326785 Islet amyloid polypeptide-producing pancreatic islet cell tumor.
15 1326785 The release of insulin and pancreatic polypeptide (PP) was totally absent after an oral glucose load and a mixed meal, respectively.
16 1337737 Homologous islet amyloid polypeptide: effects on plasma levels of glucagon, insulin and glucose in the mouse.
17 1337737 We examined the effects of a single intravenous injection of homologous islet amyloid polypeptide (IAPP) on the plasma levels of glucagon, insulin and glucose in the freely fed mouse.
18 1337737 Further, IAPP inhibited the insulin secretory response to beta 2-adrenoceptor stimulation.
19 1337737 It might also exhibit a negative feedback inhibition on beta 2-adrenoceptor-induced insulin secretion, but has little influence on glucose-induced insulin release.
20 1337737 Homologous islet amyloid polypeptide: effects on plasma levels of glucagon, insulin and glucose in the mouse.
21 1337737 We examined the effects of a single intravenous injection of homologous islet amyloid polypeptide (IAPP) on the plasma levels of glucagon, insulin and glucose in the freely fed mouse.
22 1337737 Further, IAPP inhibited the insulin secretory response to beta 2-adrenoceptor stimulation.
23 1337737 It might also exhibit a negative feedback inhibition on beta 2-adrenoceptor-induced insulin secretion, but has little influence on glucose-induced insulin release.
24 1356906 Immunochemical investigation of insulinomas for islet amyloid polypeptide and insulin: evidence for differential synthesis and storage.
25 1356906 An affinity purified antibody to fragment 14-29 of islet amyloid polypeptide (IAPP) has been prepared.
26 1356906 Islet amyloid polypeptide was found in six out of six insulinoma amyloid deposits, suggesting that the peptide is an invariable component of these deposits.
27 1356906 Over-expression of IAPP, with aberrant processing and/or secretion, may be the causative factor for amyloid deposition in insulinomas and in the islets of type 2 (non-insulin dependent) diabetic patients.
28 1356906 Immunochemical investigation of insulinomas for islet amyloid polypeptide and insulin: evidence for differential synthesis and storage.
29 1356906 An affinity purified antibody to fragment 14-29 of islet amyloid polypeptide (IAPP) has been prepared.
30 1356906 Islet amyloid polypeptide was found in six out of six insulinoma amyloid deposits, suggesting that the peptide is an invariable component of these deposits.
31 1356906 Over-expression of IAPP, with aberrant processing and/or secretion, may be the causative factor for amyloid deposition in insulinomas and in the islets of type 2 (non-insulin dependent) diabetic patients.
32 1356906 Immunochemical investigation of insulinomas for islet amyloid polypeptide and insulin: evidence for differential synthesis and storage.
33 1356906 An affinity purified antibody to fragment 14-29 of islet amyloid polypeptide (IAPP) has been prepared.
34 1356906 Islet amyloid polypeptide was found in six out of six insulinoma amyloid deposits, suggesting that the peptide is an invariable component of these deposits.
35 1356906 Over-expression of IAPP, with aberrant processing and/or secretion, may be the causative factor for amyloid deposition in insulinomas and in the islets of type 2 (non-insulin dependent) diabetic patients.
36 1356906 Immunochemical investigation of insulinomas for islet amyloid polypeptide and insulin: evidence for differential synthesis and storage.
37 1356906 An affinity purified antibody to fragment 14-29 of islet amyloid polypeptide (IAPP) has been prepared.
38 1356906 Islet amyloid polypeptide was found in six out of six insulinoma amyloid deposits, suggesting that the peptide is an invariable component of these deposits.
39 1356906 Over-expression of IAPP, with aberrant processing and/or secretion, may be the causative factor for amyloid deposition in insulinomas and in the islets of type 2 (non-insulin dependent) diabetic patients.
40 1359959 The islet amyloid polypeptide gene and non-insulin-dependent diabetes mellitus in south Indians.
41 1359959 Islet amyloid polypeptide (IAPP), otherwise called amylin, is the monomeric component of islet amyloid.
42 1359959 Deposition of this amyloid is a characteristic feature of non-insulin-dependent diabetes mellitus in humans and may play a role in the pathogenesis of the disease.
43 1359959 The islet amyloid polypeptide gene and non-insulin-dependent diabetes mellitus in south Indians.
44 1359959 Islet amyloid polypeptide (IAPP), otherwise called amylin, is the monomeric component of islet amyloid.
45 1359959 Deposition of this amyloid is a characteristic feature of non-insulin-dependent diabetes mellitus in humans and may play a role in the pathogenesis of the disease.
46 1359959 The islet amyloid polypeptide gene and non-insulin-dependent diabetes mellitus in south Indians.
47 1359959 Islet amyloid polypeptide (IAPP), otherwise called amylin, is the monomeric component of islet amyloid.
48 1359959 Deposition of this amyloid is a characteristic feature of non-insulin-dependent diabetes mellitus in humans and may play a role in the pathogenesis of the disease.
49 1360719 Human cytomegalovirus in the pancreas of patients with type 2 diabetes: is there a relation to clinical features, mRNA and protein expression of insulin, somatostatin, and MHC class II?
50 1360719 The present study addresses the question as to whether type 2 diabetes with an HCMV-positive pancreas differs from those with HCMV-negative pancreases with respect to age, sex, treatment, duration of disease, volume densities of B-cells and D-cells, mRNA levels of insulin and somatostatin, islet amyloid peptide deposits and major histocompatibility complex (MHC) class I and class II gene transcription, and protein expression.
51 1362147 Restriction fragment length polymorphisms near the islet amyloid polypeptide gene in Japanese subjects.
52 1362147 Two restriction fragment length polymorphisms (RFLPs) near the human islet amyloid polypeptide (IAPP) gene were examined in 50 Japanese patients with non-insulin-independent diabetes mellitus (NIDDM) and 54 non-diabetic controls.
53 1362147 Restriction fragment length polymorphisms near the islet amyloid polypeptide gene in Japanese subjects.
54 1362147 Two restriction fragment length polymorphisms (RFLPs) near the human islet amyloid polypeptide (IAPP) gene were examined in 50 Japanese patients with non-insulin-independent diabetes mellitus (NIDDM) and 54 non-diabetic controls.
55 1371737 Molecular biology of islet amyloid polypeptide.
56 1371737 We investigated the relationship between non-insulin-dependent diabetes mellitus (NIDDM) and islet amyloid polypeptide (IAPP) gene by restriction fragment length polymorphism (RFLP) and polymerase chain reaction (PCR)-direct sequencing analysis.
57 1371737 Molecular biology of islet amyloid polypeptide.
58 1371737 We investigated the relationship between non-insulin-dependent diabetes mellitus (NIDDM) and islet amyloid polypeptide (IAPP) gene by restriction fragment length polymorphism (RFLP) and polymerase chain reaction (PCR)-direct sequencing analysis.
59 1383068 Islet amyloid polypeptide/amylin in pancreatic beta-cell line derived from transgenic mouse insulinoma.
60 1395480 Failure to detect autoantibodies to islet amyloid polypeptide in sera from type 1 diabetic patients.
61 1407245 Amylin, also called islet amyloid polypeptide (IAPP), or diabetes-associated peptide (DAP) is a recently discovered 37 amino acid polypeptide which has been shown to be co-secreted with insulin from the pancreatic beta-cell.
62 1407245 The peptide turned out to be the major constituent of pancreatic amyloid deposits which are frequently found in the pancreas of type II diabetic patients.
63 1407245 Furthermore, it has been shown that amylin has the potential to antagonize the action of insulin on glucose metabolism by increasing hepatic glucose production and by decreasing muscle, but not adipocyte glucose uptake.
64 1407245 Amylin, also called islet amyloid polypeptide (IAPP), or diabetes-associated peptide (DAP) is a recently discovered 37 amino acid polypeptide which has been shown to be co-secreted with insulin from the pancreatic beta-cell.
65 1407245 The peptide turned out to be the major constituent of pancreatic amyloid deposits which are frequently found in the pancreas of type II diabetic patients.
66 1407245 Furthermore, it has been shown that amylin has the potential to antagonize the action of insulin on glucose metabolism by increasing hepatic glucose production and by decreasing muscle, but not adipocyte glucose uptake.
67 1413495 Immunohistology of islet amyloid polypeptide in diabetes mellitus: semi-quantitative studies in a post-mortem series.
68 1413495 Immunoreactivity for islet amyloid polypeptide (IAPP) in the islets of Langerhans of non-insulin-dependent diabetic patients and non-diabetic patients of a non-selected post-mortem series was studied with a new polyclonal IAPP antibody.
69 1413495 Of 100 patients with non-insulin-dependent diabetes mellitus (NIDDM) and islet amyloid, 98 exhibited IAPP-positive deposits and 71 exhibited intracellular immunoreactivity.
70 1413495 Immunohistology of islet amyloid polypeptide in diabetes mellitus: semi-quantitative studies in a post-mortem series.
71 1413495 Immunoreactivity for islet amyloid polypeptide (IAPP) in the islets of Langerhans of non-insulin-dependent diabetic patients and non-diabetic patients of a non-selected post-mortem series was studied with a new polyclonal IAPP antibody.
72 1413495 Of 100 patients with non-insulin-dependent diabetes mellitus (NIDDM) and islet amyloid, 98 exhibited IAPP-positive deposits and 71 exhibited intracellular immunoreactivity.
73 1413495 Immunohistology of islet amyloid polypeptide in diabetes mellitus: semi-quantitative studies in a post-mortem series.
74 1413495 Immunoreactivity for islet amyloid polypeptide (IAPP) in the islets of Langerhans of non-insulin-dependent diabetic patients and non-diabetic patients of a non-selected post-mortem series was studied with a new polyclonal IAPP antibody.
75 1413495 Of 100 patients with non-insulin-dependent diabetes mellitus (NIDDM) and islet amyloid, 98 exhibited IAPP-positive deposits and 71 exhibited intracellular immunoreactivity.
76 1414504 Amylin (also known as islet amyloid polypeptide and diabetes-associated peptide) has recently been shown by us to have a potent hypocalcemic effect in rat and rabbit owing to inhibition of osteoclast-mediated bone resorption.
77 1434057 Therefore we suspected cystatin C deposit amyloid angiopathy.
78 1453875 Amylin can precipitate out in these cells to form amyloid.
79 1453875 Amylin has a number of effects that may counteract the effect of secreted insulin, i.e., decreased second phase insulin secretion, increased hepatic glucose output, and inhibition of insulin effects on skeletal muscle.
80 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
81 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
82 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
83 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
84 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
85 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
86 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
87 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
88 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
89 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
90 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
91 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
92 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
93 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
94 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
95 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
96 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
97 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
98 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
99 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
100 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
101 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
102 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
103 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
104 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
105 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
106 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
107 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
108 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
109 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
110 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
111 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
112 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
113 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
114 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
115 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
116 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
117 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
118 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
119 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
120 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
121 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
122 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
123 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
124 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
125 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
126 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
127 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
128 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
129 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
130 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
131 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
132 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
133 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
134 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
135 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
136 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
137 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
138 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
139 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
140 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
141 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
142 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
143 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
144 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
145 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
146 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
147 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
148 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
149 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
150 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
151 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
152 1473619 Detection of autoantibodies against islet amyloid polypeptide in human serum.
153 1473619 Lack of association with type 1 (insulin-dependent) diabetes mellitus, or with conditions favouring amyloid deposition in islets.
154 1473619 A radiobinding assay for the detection of autoantibodies against islet amyloid polypeptide was developed, analytically validated, and--in parallel with a similar assay for the detection of autoantibodies against insulin--applied to sera from recent-onset Type 1 (insulin-dependent) diabetic patients and from age- and sex-matched control subjects.
155 1473619 There was no difference in islet amyloid polypeptide autoantibody titres between patient groups and matched control subjects, nor within subject groups according to age.
156 1473619 At onset of Type 1 diabetes, elevated islet amyloid polypeptide-autoantibody levels (> 97th percentile of control subjects) were only detected in 1 of 30 patients aged 0-19 years and in 2 of 35 patients aged 20-39 years.
157 1473619 Islet amyloid polypeptide autoantibodies were not detectable in 3 insulinoma patients nor in 37 patients (aged 33-70 years) with Type 2 diabetes (vs 1 of 40 in matched control subjects).
158 1473619 In positive serum, adsorption onto protein A-Sepharose removed islet amyloid polypeptide binding activity, hereby confirming its antibody nature.
159 1473619 In conclusion, Type 1 diabetes is associated with an age-dependent autoantibody reaction against insulin but not against islet amyloid polypeptide.
160 1473619 Conditions associated with amyloid deposition in islets (Type 2 diabetes, insulinoma and ageing) do not favour the formation of autoantibodies against islet amyloid polypeptide.
161 1497641 Establishment of hypersensitive radioimmunoassay for islet amyloid polypeptide using antiserum specific for its N-terminal region.
162 1497641 Using a synthetic N-terminal hexadecapeptide of islet amyloid polypeptide (IAPP), we prepared an antiserum specific for IAPP[1-16] and established an extremely sensitive radioimmunoassay (RIA) for the peptide with a minimum detection level of 0.26 fmol/tube.
163 1497641 Establishment of hypersensitive radioimmunoassay for islet amyloid polypeptide using antiserum specific for its N-terminal region.
164 1497641 Using a synthetic N-terminal hexadecapeptide of islet amyloid polypeptide (IAPP), we prepared an antiserum specific for IAPP[1-16] and established an extremely sensitive radioimmunoassay (RIA) for the peptide with a minimum detection level of 0.26 fmol/tube.
165 1516756 Islet amyloid polypeptide--a novel controversy in diabetes research.
166 1524461 Localization of the basement membrane heparan sulfate proteoglycan in islet amyloid deposits in type II diabetes mellitus.
167 1524461 Although the mechanisms of islet amyloid fibrillogenesis are unknown, the presence of heparan sulfate proteoglycan in many other forms of amyloid suggests a role for this proteoglycan in amyloidogenesis in general.
168 1524461 In this study, islet amyloid was evaluated for the presence of the basement membrane heparan sulfate proteoglycan using histochemical and immunohistochemical techniques.
169 1524461 Staining with sodium sulfate-alcian blue identified highly sulfated glycosaminoglycans within all islet amyloid deposits, and anti-basement membrane heparan sulfate proteoglycan antisera localized this specific proteoglycan within the islet amyloid.
170 1524461 The presence of the basement membrane heparan sulfate proteoglycan links islet amyloid to other disparate forms of amyloid and further supports the hypothesis that it has a role in a common pathway of amyloid fibrillogenesis.
171 1524461 Localization of the basement membrane heparan sulfate proteoglycan in islet amyloid deposits in type II diabetes mellitus.
172 1524461 Although the mechanisms of islet amyloid fibrillogenesis are unknown, the presence of heparan sulfate proteoglycan in many other forms of amyloid suggests a role for this proteoglycan in amyloidogenesis in general.
173 1524461 In this study, islet amyloid was evaluated for the presence of the basement membrane heparan sulfate proteoglycan using histochemical and immunohistochemical techniques.
174 1524461 Staining with sodium sulfate-alcian blue identified highly sulfated glycosaminoglycans within all islet amyloid deposits, and anti-basement membrane heparan sulfate proteoglycan antisera localized this specific proteoglycan within the islet amyloid.
175 1524461 The presence of the basement membrane heparan sulfate proteoglycan links islet amyloid to other disparate forms of amyloid and further supports the hypothesis that it has a role in a common pathway of amyloid fibrillogenesis.
176 1524461 Localization of the basement membrane heparan sulfate proteoglycan in islet amyloid deposits in type II diabetes mellitus.
177 1524461 Although the mechanisms of islet amyloid fibrillogenesis are unknown, the presence of heparan sulfate proteoglycan in many other forms of amyloid suggests a role for this proteoglycan in amyloidogenesis in general.
178 1524461 In this study, islet amyloid was evaluated for the presence of the basement membrane heparan sulfate proteoglycan using histochemical and immunohistochemical techniques.
179 1524461 Staining with sodium sulfate-alcian blue identified highly sulfated glycosaminoglycans within all islet amyloid deposits, and anti-basement membrane heparan sulfate proteoglycan antisera localized this specific proteoglycan within the islet amyloid.
180 1524461 The presence of the basement membrane heparan sulfate proteoglycan links islet amyloid to other disparate forms of amyloid and further supports the hypothesis that it has a role in a common pathway of amyloid fibrillogenesis.
181 1524461 Localization of the basement membrane heparan sulfate proteoglycan in islet amyloid deposits in type II diabetes mellitus.
182 1524461 Although the mechanisms of islet amyloid fibrillogenesis are unknown, the presence of heparan sulfate proteoglycan in many other forms of amyloid suggests a role for this proteoglycan in amyloidogenesis in general.
183 1524461 In this study, islet amyloid was evaluated for the presence of the basement membrane heparan sulfate proteoglycan using histochemical and immunohistochemical techniques.
184 1524461 Staining with sodium sulfate-alcian blue identified highly sulfated glycosaminoglycans within all islet amyloid deposits, and anti-basement membrane heparan sulfate proteoglycan antisera localized this specific proteoglycan within the islet amyloid.
185 1524461 The presence of the basement membrane heparan sulfate proteoglycan links islet amyloid to other disparate forms of amyloid and further supports the hypothesis that it has a role in a common pathway of amyloid fibrillogenesis.
186 1524461 Localization of the basement membrane heparan sulfate proteoglycan in islet amyloid deposits in type II diabetes mellitus.
187 1524461 Although the mechanisms of islet amyloid fibrillogenesis are unknown, the presence of heparan sulfate proteoglycan in many other forms of amyloid suggests a role for this proteoglycan in amyloidogenesis in general.
188 1524461 In this study, islet amyloid was evaluated for the presence of the basement membrane heparan sulfate proteoglycan using histochemical and immunohistochemical techniques.
189 1524461 Staining with sodium sulfate-alcian blue identified highly sulfated glycosaminoglycans within all islet amyloid deposits, and anti-basement membrane heparan sulfate proteoglycan antisera localized this specific proteoglycan within the islet amyloid.
190 1524461 The presence of the basement membrane heparan sulfate proteoglycan links islet amyloid to other disparate forms of amyloid and further supports the hypothesis that it has a role in a common pathway of amyloid fibrillogenesis.
191 1534057 With isolated perfused pancreases from normal and diabetic model rats, we studied alterations of the secretion of islet amyloid polypeptide, or amylin, which has been recently identified as a major component of amyloid deposits in the pancreatic islets of patients with non-insulin-dependent diabetes mellitus.
192 1541229 Relationship between islet amyloid polypeptide (IAPP) deposition and insulin response and beta-cell volume in diabetes mellitus.
193 1541230 Islet amyloid polypeptide-derived amyloid deposition increases along with the duration of type 2 diabetes mellitus.
194 1541230 To investigate the involvement of islet amyloid polypeptide (IAPP) and amyloid deposits in the pathophysiology of this disease, we studied the relationship between IAPP-derived amyloid deposition and the clinical features in type 2 diabetes mellitus.
195 1541230 Islet amyloid polypeptide-derived amyloid deposition increases along with the duration of type 2 diabetes mellitus.
196 1541230 To investigate the involvement of islet amyloid polypeptide (IAPP) and amyloid deposits in the pathophysiology of this disease, we studied the relationship between IAPP-derived amyloid deposition and the clinical features in type 2 diabetes mellitus.
197 1541231 To investigate the possible role of islet amyloid polypeptide (IAPP) in the development of type 2 diabetes mellitus, we examined the IAPP content and secretion in pancreatic islets isolated from ventromedial hypothalamic (VMH)-lesioned rats and genetically obese Zucker rats, using a specific radioimmunoassay for IAPP.
198 1541232 Islet amyloid polypeptide (IAPP) and pancreatic islet amyloid deposition in diabetic and non-diabetic patients.
199 1541232 Twenty pancreata of non-diabetic patients and 17 pancreata of diabetic patients, including two patients with insulin-dependent diabetes mellitus, were immunohistochemically studied using antiserum against human islet amyloid polypeptide (IAPP).
200 1541232 The decreased immunoreactivity for IAPP suggested an initial stage of disturbed beta-cell function, even if the immunoreactivity for insulin was apparently intact or the amyloid deposition in the islets was insignificant.
201 1541232 Islet amyloid polypeptide (IAPP) and pancreatic islet amyloid deposition in diabetic and non-diabetic patients.
202 1541232 Twenty pancreata of non-diabetic patients and 17 pancreata of diabetic patients, including two patients with insulin-dependent diabetes mellitus, were immunohistochemically studied using antiserum against human islet amyloid polypeptide (IAPP).
203 1541232 The decreased immunoreactivity for IAPP suggested an initial stage of disturbed beta-cell function, even if the immunoreactivity for insulin was apparently intact or the amyloid deposition in the islets was insignificant.
204 1541232 Islet amyloid polypeptide (IAPP) and pancreatic islet amyloid deposition in diabetic and non-diabetic patients.
205 1541232 Twenty pancreata of non-diabetic patients and 17 pancreata of diabetic patients, including two patients with insulin-dependent diabetes mellitus, were immunohistochemically studied using antiserum against human islet amyloid polypeptide (IAPP).
206 1541232 The decreased immunoreactivity for IAPP suggested an initial stage of disturbed beta-cell function, even if the immunoreactivity for insulin was apparently intact or the amyloid deposition in the islets was insignificant.
207 1541233 Molecular forms of islet amyloid polypeptide (IAPP/amylin) in four mammals.
208 1541233 Using reverse-phase high performance liquid chromatography combined with radioimmunoassays for human and rat/mouse islet amyloid polypeptide (IAPP), we identified molecular forms of IAPPs in pancreata of four mammals including species in which islet amyloid deposition occurs (human and cat) and those in which amyloid deposition does not occur (rat and mouse).
209 1541233 Molecular forms of islet amyloid polypeptide (IAPP/amylin) in four mammals.
210 1541233 Using reverse-phase high performance liquid chromatography combined with radioimmunoassays for human and rat/mouse islet amyloid polypeptide (IAPP), we identified molecular forms of IAPPs in pancreata of four mammals including species in which islet amyloid deposition occurs (human and cat) and those in which amyloid deposition does not occur (rat and mouse).
211 1541234 Islet amyloid polypeptide (IAPP) gene analysis in a Japanese diabetic with marked islet amyloid deposition.
212 1541234 Islet amyloid polypeptide (IAPP) is a major constituent of pancreatic amyloid deposits in many patients with non-insulin-dependent diabetes mellitus (NIDDM).
213 1541234 Islet amyloid polypeptide (IAPP) gene analysis in a Japanese diabetic with marked islet amyloid deposition.
214 1541234 Islet amyloid polypeptide (IAPP) is a major constituent of pancreatic amyloid deposits in many patients with non-insulin-dependent diabetes mellitus (NIDDM).
215 1541235 Effects of islet amyloid polypeptide (IAPP) on insulin biosynthesis or secretion in rat islets and mouse beta TC3 cells.
216 1541235 Effects of rat islet amyloid polypeptide (IAPP) on insulin biosynthesis and secretion were examined in isolated rat islets and mouse beta TC3 cells.
217 1541235 Effects of islet amyloid polypeptide (IAPP) on insulin biosynthesis or secretion in rat islets and mouse beta TC3 cells.
218 1541235 Effects of rat islet amyloid polypeptide (IAPP) on insulin biosynthesis and secretion were examined in isolated rat islets and mouse beta TC3 cells.
219 1541236 Islet amyloid polypeptide (IAPP/amylin) causes insulin resistance in perfused rat hindlimb muscle.
220 1541236 It has been reported that islet amyloid polypeptide (IAPP) has insulin antagonistic effects in vivo and in vitro.
221 1541236 Rat calcitonin gene-related peptide (CGRP), which has sequence homology with IAPP and has been reported to inhibit insulin action, was also administered.
222 1541236 Therefore, IAPP directly reduced only the insulin-mediated GU in the skeletal muscle, and this effect of IAPP occurred at the same dose as that of CGRP.
223 1541236 These data suggest that both IAPP and CGRP may cause insulin resistance in skeletal muscle not through a CGRP receptor but a yet unknown receptor, which has similar binding affinity for both IAPP and CGRP.
224 1541236 Islet amyloid polypeptide (IAPP/amylin) causes insulin resistance in perfused rat hindlimb muscle.
225 1541236 It has been reported that islet amyloid polypeptide (IAPP) has insulin antagonistic effects in vivo and in vitro.
226 1541236 Rat calcitonin gene-related peptide (CGRP), which has sequence homology with IAPP and has been reported to inhibit insulin action, was also administered.
227 1541236 Therefore, IAPP directly reduced only the insulin-mediated GU in the skeletal muscle, and this effect of IAPP occurred at the same dose as that of CGRP.
228 1541236 These data suggest that both IAPP and CGRP may cause insulin resistance in skeletal muscle not through a CGRP receptor but a yet unknown receptor, which has similar binding affinity for both IAPP and CGRP.
229 1541237 Effects of islet amyloid polypeptide (amylin) and calcitonin gene-related peptide (CGRP) on glucose metabolism in the rat.
230 1541237 In this study, we compared the effects of islet amyloid polypeptide (IAPP) and calcitonin gene-related peptide (CGRP) on glucose metabolism both in vivo and in vitro in the rat.
231 1541237 Intravenous injection of rat CGRP caused a significant increase in plasma glucose concentration with a simultaneous increase in plasma insulin levels, whereas neither IAPP-NH2 nor IAPP-COOH had any effect.
232 1541237 Moreover, intravenous infusion of CGRP decreased tolerance to intragastric administration of glucose (O-GTT) without altering plasma insulin levels, but again IAPPs had no effect.
233 1541237 Conversely, CGRP as well as IAPP-NH2 but not IAPP-COOH evoked dose-dependent activation of adenylate cyclase in the membranes, and these effects were significantly inhibited by a CGRP receptor antagonist, human CGRP-I(8-37).
234 1541237 These results suggest that (1) IAPP-NH2 but not IAPP-COOH induces adenylate cyclase activation via CGRP receptors on rat liver plasma membranes, and (2) CGRP might not involve its action on the liver in the changes of glucose metabolism.
235 1541237 Effects of islet amyloid polypeptide (amylin) and calcitonin gene-related peptide (CGRP) on glucose metabolism in the rat.
236 1541237 In this study, we compared the effects of islet amyloid polypeptide (IAPP) and calcitonin gene-related peptide (CGRP) on glucose metabolism both in vivo and in vitro in the rat.
237 1541237 Intravenous injection of rat CGRP caused a significant increase in plasma glucose concentration with a simultaneous increase in plasma insulin levels, whereas neither IAPP-NH2 nor IAPP-COOH had any effect.
238 1541237 Moreover, intravenous infusion of CGRP decreased tolerance to intragastric administration of glucose (O-GTT) without altering plasma insulin levels, but again IAPPs had no effect.
239 1541237 Conversely, CGRP as well as IAPP-NH2 but not IAPP-COOH evoked dose-dependent activation of adenylate cyclase in the membranes, and these effects were significantly inhibited by a CGRP receptor antagonist, human CGRP-I(8-37).
240 1541237 These results suggest that (1) IAPP-NH2 but not IAPP-COOH induces adenylate cyclase activation via CGRP receptors on rat liver plasma membranes, and (2) CGRP might not involve its action on the liver in the changes of glucose metabolism.
241 1541239 Amylin is a 37-amino acid peptide isolated from pancreatic islet amyloid of patients with non-insulin-dependent diabetes mellitus (NIDDM).
242 1541240 Islet amyloid polypeptide (IAPP) secretion from islet cells and its plasma concentration in patients with non-insulin-dependent diabetes mellitus.
243 1541240 Islet amyloid polypeptide (IAPP/Amylin) is a novel peptide which was extracted from islet amyloid deposits in patients with non-insulin-dependent diabetes mellitus (NIDDM).
244 1541240 Islet amyloid polypeptide (IAPP) secretion from islet cells and its plasma concentration in patients with non-insulin-dependent diabetes mellitus.
245 1541240 Islet amyloid polypeptide (IAPP/Amylin) is a novel peptide which was extracted from islet amyloid deposits in patients with non-insulin-dependent diabetes mellitus (NIDDM).
246 1541238 Effect of islet amyloid polypeptide (IAPP/amylin) on 2-deoxyglucose uptake in mouse pancreatic acini.
247 1541238 In order to examine the effect of islet amyloid polypeptide (IAPP/amylin), a product of the pancreatic beta cell and a major component of islet amyloid deposits, on exocrine pancreatic function, we studied the effect of rat IAPP amide (IAPP-NH2) on 2-deoxy-D-glucose (2-DG) uptake in isolated mouse pancreatic acini.
248 1541238 Effect of islet amyloid polypeptide (IAPP/amylin) on 2-deoxyglucose uptake in mouse pancreatic acini.
249 1541238 In order to examine the effect of islet amyloid polypeptide (IAPP/amylin), a product of the pancreatic beta cell and a major component of islet amyloid deposits, on exocrine pancreatic function, we studied the effect of rat IAPP amide (IAPP-NH2) on 2-deoxy-D-glucose (2-DG) uptake in isolated mouse pancreatic acini.
250 1541241 Plasma islet amyloid polypeptide levels in obesity, impaired glucose tolerance and non-insulin-dependent diabetes mellitus.
251 1541241 We examined the response of plasma islet amyloid polypeptide (IAPP) to an oral glucose load in non-obese and obese subjects with normal glucose tolerance or impaired glucose tolerance (IGT), and in non-obese patients with non-insulin-dependent diabetes mellitus (NIDDM).
252 1541241 Plasma islet amyloid polypeptide levels in obesity, impaired glucose tolerance and non-insulin-dependent diabetes mellitus.
253 1541241 We examined the response of plasma islet amyloid polypeptide (IAPP) to an oral glucose load in non-obese and obese subjects with normal glucose tolerance or impaired glucose tolerance (IGT), and in non-obese patients with non-insulin-dependent diabetes mellitus (NIDDM).
254 1556951 Lack of effect of islet amyloid polypeptide on hepatic glucose output in the in situ-perfused rat liver.
255 1556951 Islet amyloid polypeptide (IAPP), a novel peptide isolated from islet amyloid deposits in patients with insulinoma and non-insulin-dependent diabetes mellitus (NIDDM), has been reported to be cosecreted with insulin from pancreatic beta cells and to inhibit glucose uptake and glycogen synthesis in muscle tissue in vitro.
256 1556951 Lack of effect of islet amyloid polypeptide on hepatic glucose output in the in situ-perfused rat liver.
257 1556951 Islet amyloid polypeptide (IAPP), a novel peptide isolated from islet amyloid deposits in patients with insulinoma and non-insulin-dependent diabetes mellitus (NIDDM), has been reported to be cosecreted with insulin from pancreatic beta cells and to inhibit glucose uptake and glycogen synthesis in muscle tissue in vitro.
258 1563328 Effects of aging on plasma islet amyloid polypeptide basal level and response to oral glucose load.
259 1563328 To delineate the effects of aging on basal and glucose-stimulated secretion of islet amyloid polypeptide (IAPP), we compared the basal level of plasma IAPP and its response to an oral glucose load in elderly subjects with those of young subjects.
260 1563328 Effects of aging on plasma islet amyloid polypeptide basal level and response to oral glucose load.
261 1563328 To delineate the effects of aging on basal and glucose-stimulated secretion of islet amyloid polypeptide (IAPP), we compared the basal level of plasma IAPP and its response to an oral glucose load in elderly subjects with those of young subjects.
262 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
263 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
264 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
265 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
266 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
267 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
268 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
269 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
270 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
271 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
272 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
273 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
274 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
275 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
276 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
277 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
278 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
279 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
280 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
281 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
282 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
283 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
284 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
285 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
286 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
287 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
288 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
289 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
290 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
291 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
292 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
293 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
294 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
295 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
296 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
297 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
298 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
299 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
300 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
301 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
302 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
303 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
304 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
305 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
306 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
307 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
308 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
309 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
310 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
311 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
312 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
313 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
314 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
315 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
316 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
317 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
318 1563587 Islet amyloid polypeptide plasma concentrations in individuals at increased risk of developing type 2 (non-insulin-dependent) diabetes mellitus.
319 1563587 To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
320 1563587 Fasting islet amyloid polypeptide concentrations were similar in control subjects, glucose-tolerant and glucose-intolerant relatives (8 +/- 1, 9 +/- 1 and 11 +/- 2 fmol/ml; p = NS).
321 1563587 The area under the islet amyloid polypeptide curve measured during an oral glucose load was larger in glucose-intolerant relatives (115 +/- 13 fmol/ml) compared to glucose tolerant relatives and control subjects (88 +/- 3 and 79 +/- 12 fmol/ml; p less than 0.05).
322 1563587 The insulin response during the oral glucose load was inversely correlated with the rate of glucose disposal measured during a euglycaemic hyperinsulinaemic clamp (r = -0.725; p less than 0.01), while no significant correlation was observed between the corresponding values for islet amyloid polypeptide and glucose disposal (r = -0.380; p = NS).
323 1563587 Hypersecretion of islet amyloid polypeptide is observed in glucose-intolerant first-degree relatives of patients with Type 2 diabetes.
324 1563587 Since these patients are characterized by insulin resistance and abnormal first-phase insulin secretion, the putative role of islet amyloid polypeptide in the development of these abnormalities remains to be established.
325 1563587 It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
326 1573849 Islet amyloid polypeptide: mechanisms of amyloidogenesis in the pancreatic islets and potential roles in diabetes mellitus.
327 1573849 IAPP, a highly conserved and carboxy-terminally amidated 37 amino acid polypeptide with approximately 45% amino acid sequence identity to CGRP, is produced by islet beta cells and is cosecreted with insulin in response to glucose and other secretagogues.
328 1609616 The argyrophilic tumor cells with occasional mitoses and focal venous involvement predominantly showed immunoreactivity of cytokeratin, neuron-specific enolase, cystatin C, chromogranin A, calcitonin and neuropeptide Y (NPY).
329 1609616 Fewer cells were immunoreactive for calcitonin gene-related peptide (CGRP), the alpha-subunit of human chorionic gonadotropin, gastrin-releasing peptide, serotonin, methionine-enkephalin and gastrin.
330 1609616 Immunoreactive CGRP or NPY were co-localized in calcitonin-positive cells.
331 1609616 The amyloid substance was positively labeled only for CGRP.
332 1609616 Immunostaining for amylin, a polypeptide isolated from insular amyloid in type II diabetes mellitus or insulinoma showing a 50% homology with CGRP, was negative.
333 1609616 Immunoelectron microscopic studies disclosed peptide localization in neurosecretory-type granules and CGRP immunoreactivity in extracellular amyloid fibrils.
334 1609616 This is the first report describing CGRP as a component of amyloid of endocrine origin.
335 1609616 The argyrophilic tumor cells with occasional mitoses and focal venous involvement predominantly showed immunoreactivity of cytokeratin, neuron-specific enolase, cystatin C, chromogranin A, calcitonin and neuropeptide Y (NPY).
336 1609616 Fewer cells were immunoreactive for calcitonin gene-related peptide (CGRP), the alpha-subunit of human chorionic gonadotropin, gastrin-releasing peptide, serotonin, methionine-enkephalin and gastrin.
337 1609616 Immunoreactive CGRP or NPY were co-localized in calcitonin-positive cells.
338 1609616 The amyloid substance was positively labeled only for CGRP.
339 1609616 Immunostaining for amylin, a polypeptide isolated from insular amyloid in type II diabetes mellitus or insulinoma showing a 50% homology with CGRP, was negative.
340 1609616 Immunoelectron microscopic studies disclosed peptide localization in neurosecretory-type granules and CGRP immunoreactivity in extracellular amyloid fibrils.
341 1609616 This is the first report describing CGRP as a component of amyloid of endocrine origin.
342 1609616 The argyrophilic tumor cells with occasional mitoses and focal venous involvement predominantly showed immunoreactivity of cytokeratin, neuron-specific enolase, cystatin C, chromogranin A, calcitonin and neuropeptide Y (NPY).
343 1609616 Fewer cells were immunoreactive for calcitonin gene-related peptide (CGRP), the alpha-subunit of human chorionic gonadotropin, gastrin-releasing peptide, serotonin, methionine-enkephalin and gastrin.
344 1609616 Immunoreactive CGRP or NPY were co-localized in calcitonin-positive cells.
345 1609616 The amyloid substance was positively labeled only for CGRP.
346 1609616 Immunostaining for amylin, a polypeptide isolated from insular amyloid in type II diabetes mellitus or insulinoma showing a 50% homology with CGRP, was negative.
347 1609616 Immunoelectron microscopic studies disclosed peptide localization in neurosecretory-type granules and CGRP immunoreactivity in extracellular amyloid fibrils.
348 1609616 This is the first report describing CGRP as a component of amyloid of endocrine origin.
349 1609616 The argyrophilic tumor cells with occasional mitoses and focal venous involvement predominantly showed immunoreactivity of cytokeratin, neuron-specific enolase, cystatin C, chromogranin A, calcitonin and neuropeptide Y (NPY).
350 1609616 Fewer cells were immunoreactive for calcitonin gene-related peptide (CGRP), the alpha-subunit of human chorionic gonadotropin, gastrin-releasing peptide, serotonin, methionine-enkephalin and gastrin.
351 1609616 Immunoreactive CGRP or NPY were co-localized in calcitonin-positive cells.
352 1609616 The amyloid substance was positively labeled only for CGRP.
353 1609616 Immunostaining for amylin, a polypeptide isolated from insular amyloid in type II diabetes mellitus or insulinoma showing a 50% homology with CGRP, was negative.
354 1609616 Immunoelectron microscopic studies disclosed peptide localization in neurosecretory-type granules and CGRP immunoreactivity in extracellular amyloid fibrils.
355 1609616 This is the first report describing CGRP as a component of amyloid of endocrine origin.
356 1628773 Amylin, a peptide found in pancreatic amyloid deposits, may be involved in NIDDM.
357 1637089 The physiology of calcitonin gene-related peptide in the islet compared with that of islet amyloid polypeptide (amylin).
358 1637089 Another 37-amino acid peptide was recently isolated from islet amyloid deposits and found to have approximately 50% amino acid sequence homology with CGRP.
359 1637089 Islet amyloid polypeptide, or amylin, is co-localized with insulin to the beta-cell secretory granule and is synthesized and released in parallel with insulin in response to a range of physiological and pharmacological stimuli.
360 1637089 IAPP was subsequently shown, like CGRP, to inhibit the release of insulin pharmacologically.
361 1637089 The physiology of calcitonin gene-related peptide in the islet compared with that of islet amyloid polypeptide (amylin).
362 1637089 Another 37-amino acid peptide was recently isolated from islet amyloid deposits and found to have approximately 50% amino acid sequence homology with CGRP.
363 1637089 Islet amyloid polypeptide, or amylin, is co-localized with insulin to the beta-cell secretory granule and is synthesized and released in parallel with insulin in response to a range of physiological and pharmacological stimuli.
364 1637089 IAPP was subsequently shown, like CGRP, to inhibit the release of insulin pharmacologically.
365 1637089 The physiology of calcitonin gene-related peptide in the islet compared with that of islet amyloid polypeptide (amylin).
366 1637089 Another 37-amino acid peptide was recently isolated from islet amyloid deposits and found to have approximately 50% amino acid sequence homology with CGRP.
367 1637089 Islet amyloid polypeptide, or amylin, is co-localized with insulin to the beta-cell secretory granule and is synthesized and released in parallel with insulin in response to a range of physiological and pharmacological stimuli.
368 1637089 IAPP was subsequently shown, like CGRP, to inhibit the release of insulin pharmacologically.
369 1641390 Inhibitory effect of islet amyloid polypeptide of glucose-induced proinsulin biosynthesis in rat insulinoma cells.
370 1641390 Islet amyloid polypeptide (IAPP) has been recently identified as the principal constituent of amyloid deposits in pancreatic islets of patients with type 2 (non-insulin-dependent) diabetes mellitus and causes insulin resistance in some target cells.
371 1641390 Inhibitory effect of islet amyloid polypeptide of glucose-induced proinsulin biosynthesis in rat insulinoma cells.
372 1641390 Islet amyloid polypeptide (IAPP) has been recently identified as the principal constituent of amyloid deposits in pancreatic islets of patients with type 2 (non-insulin-dependent) diabetes mellitus and causes insulin resistance in some target cells.
373 1676684 Non-linkage of the islet amyloid polypeptide gene with type 2 (non-insulin-dependent) diabetes mellitus.
374 1676684 Type 2 (non-insulin-dependent) diabetes is associated with the deposition of islet amyloid.
375 1676684 The major formative peptide, islet amyloid polypeptide, has recently been characterised and an abnormality of the structure or expression of this gene is a possible candidate for the inherited component of Type 2 diabetes.
376 1676684 To study the relationship between the islet amyloid polypeptide gene and Type 2 diabetes, two distinct genetic approaches have been undertaken.
377 1676684 A mutation in or near the islet amyloid polypeptide gene is thus unlikely to be a common cause of Type 2 diabetes.
378 1676684 Non-linkage of the islet amyloid polypeptide gene with type 2 (non-insulin-dependent) diabetes mellitus.
379 1676684 Type 2 (non-insulin-dependent) diabetes is associated with the deposition of islet amyloid.
380 1676684 The major formative peptide, islet amyloid polypeptide, has recently been characterised and an abnormality of the structure or expression of this gene is a possible candidate for the inherited component of Type 2 diabetes.
381 1676684 To study the relationship between the islet amyloid polypeptide gene and Type 2 diabetes, two distinct genetic approaches have been undertaken.
382 1676684 A mutation in or near the islet amyloid polypeptide gene is thus unlikely to be a common cause of Type 2 diabetes.
383 1676684 Non-linkage of the islet amyloid polypeptide gene with type 2 (non-insulin-dependent) diabetes mellitus.
384 1676684 Type 2 (non-insulin-dependent) diabetes is associated with the deposition of islet amyloid.
385 1676684 The major formative peptide, islet amyloid polypeptide, has recently been characterised and an abnormality of the structure or expression of this gene is a possible candidate for the inherited component of Type 2 diabetes.
386 1676684 To study the relationship between the islet amyloid polypeptide gene and Type 2 diabetes, two distinct genetic approaches have been undertaken.
387 1676684 A mutation in or near the islet amyloid polypeptide gene is thus unlikely to be a common cause of Type 2 diabetes.
388 1676684 Non-linkage of the islet amyloid polypeptide gene with type 2 (non-insulin-dependent) diabetes mellitus.
389 1676684 Type 2 (non-insulin-dependent) diabetes is associated with the deposition of islet amyloid.
390 1676684 The major formative peptide, islet amyloid polypeptide, has recently been characterised and an abnormality of the structure or expression of this gene is a possible candidate for the inherited component of Type 2 diabetes.
391 1676684 To study the relationship between the islet amyloid polypeptide gene and Type 2 diabetes, two distinct genetic approaches have been undertaken.
392 1676684 A mutation in or near the islet amyloid polypeptide gene is thus unlikely to be a common cause of Type 2 diabetes.
393 1676684 Non-linkage of the islet amyloid polypeptide gene with type 2 (non-insulin-dependent) diabetes mellitus.
394 1676684 Type 2 (non-insulin-dependent) diabetes is associated with the deposition of islet amyloid.
395 1676684 The major formative peptide, islet amyloid polypeptide, has recently been characterised and an abnormality of the structure or expression of this gene is a possible candidate for the inherited component of Type 2 diabetes.
396 1676684 To study the relationship between the islet amyloid polypeptide gene and Type 2 diabetes, two distinct genetic approaches have been undertaken.
397 1676684 A mutation in or near the islet amyloid polypeptide gene is thus unlikely to be a common cause of Type 2 diabetes.
398 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
399 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
400 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
401 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
402 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
403 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
404 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
405 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
406 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
407 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
408 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
409 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
410 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
411 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
412 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
413 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
414 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
415 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
416 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
417 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
418 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
419 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
420 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
421 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
422 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
423 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
424 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
425 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
426 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
427 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
428 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
429 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
430 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
431 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
432 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
433 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
434 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
435 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
436 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
437 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
438 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
439 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
440 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
441 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
442 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
443 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
444 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
445 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
446 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
447 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
448 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
449 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
450 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
451 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
452 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
453 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
454 1718805 Sequences of islet amyloid polypeptide precursors of an Old World monkey, the pig-tailed macaque (Macaca nemestrina), and the dog (Canis familiaris).
455 1718805 The 37-amino acid islet amyloid polypeptide represents the major protein component present in islet amyloid deposits.
456 1718805 Although the presence of islet amyloid is a characteristic pathological feature of the islets of humans, monkeys and cats with Type 2 (non-insulin-dependent) diabetes mellitus, it is not found in the islets of diabetic rats, mice or dogs.
457 1718805 To further explore the molecular basis for these species differences in amyloid deposition we have used a polymerase chain reaction based method to clone cDNAs encoding the monkey (Macaca nemestrina) and dog (Canis familiaris) islet amyloid polypeptide precursors.
458 1718805 The predicted amino acid sequence of the monkey precursor is 96% identical to that of the human protein; differences include one replacement in the signal peptide and three in the islet amyloid polypeptide domain.
459 1718805 The sequence of the dog precursor is most closely related to that of the cat protein (85% identity); the sequences of dog and cat islet amyloid polypeptide differ only at two positions and are identical in the region of amino acids 20-29, the region thought to be primarily responsible for amyloidogenesis.
460 1718805 Thus, amino acid residues in addition to those at positions 20-29 may facilitate the aggregation of islet amyloid polypeptide.
461 1718805 The presence of amyloid deposits in some dog pancreatic endocrine tumours suggests that the dog protein can be amyloidogenic, perhaps due to elevated expression of islet amyloid polypeptide by the tumours relative to normal islets.
462 1734887 Presence of islet amyloid polypeptide in rat islet B and D cells determines parallelism and dissociation between rat pancreatic islet amyloid polypeptide and insulin content.
463 1734887 The islet amyloid polypeptide (IAPP) immunoreactivity of the adult rat pancreas is located in insulin-containing B cells as well as in somatostatin-containing D cells.
464 1734887 Presence of islet amyloid polypeptide in rat islet B and D cells determines parallelism and dissociation between rat pancreatic islet amyloid polypeptide and insulin content.
465 1734887 The islet amyloid polypeptide (IAPP) immunoreactivity of the adult rat pancreas is located in insulin-containing B cells as well as in somatostatin-containing D cells.
466 1756902 Amylin, a 37-amino acid polypeptide, has been identified as the major protein component of pancreatic amyloid deposits in patients with non-insulin-dependent (type II) diabetes mellitus.
467 1756902 Amylin is stored and released together with insulin and has been proposed to play a major role in the pathogenesis of type II diabetes.
468 1756910 Islet amyloid polypeptide and insulin secretion from isolated perfused pancreas of fed, fasted, glucose-treated, and dexamethasone-treated rats.
469 1756910 Rats from four experimental treatment groups, including fed controls, 24- to 30-h fasted, dexamethasone-treated, and intraperitoneal glucose-treated, were used to assess the effects of these treatments on the immunohistochemically detectable islet amyloid polypeptide (IAPP) content in the pancreatic islets.
470 1756910 Islet amyloid polypeptide and insulin secretion from isolated perfused pancreas of fed, fasted, glucose-treated, and dexamethasone-treated rats.
471 1756910 Rats from four experimental treatment groups, including fed controls, 24- to 30-h fasted, dexamethasone-treated, and intraperitoneal glucose-treated, were used to assess the effects of these treatments on the immunohistochemically detectable islet amyloid polypeptide (IAPP) content in the pancreatic islets.
472 1833120 Autoantibodies to islet amyloid polypeptide in diabetes.
473 1833120 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid in pancreatic islets of Type 2 diabetic patients and in insulinomas.
474 1833120 Autoantibodies to islet amyloid polypeptide in diabetes.
475 1833120 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid in pancreatic islets of Type 2 diabetic patients and in insulinomas.
476 1854502 Islet amyloid polypeptide (IAPP).
477 1854502 The islet amyloid polypeptide (IAPP) was originally identified by chemical analysis of the amyloid component in a human pancreatic islet cell tumor.
478 1854502 Islet amyloid polypeptide (IAPP).
479 1854502 The islet amyloid polypeptide (IAPP) was originally identified by chemical analysis of the amyloid component in a human pancreatic islet cell tumor.
480 1860552 Amylin is a 37-amino acid peptide isolated from the islet amyloid of patients with non-insulin-dependent diabetes mellitus.
481 1860559 Antagonistic effect of human alpha-calcitonin gene-related peptide (8-37) on regional hemodynamic actions of rat islet amyloid polypeptide in conscious Long-Evans rats.
482 1860559 Rat synthetic amidated islet amyloid polypeptide (IAPP) was infused into conscious Long-Evans rats chronically instrumented for the measurement of regional hemodynamics.
483 1860559 Antagonistic effect of human alpha-calcitonin gene-related peptide (8-37) on regional hemodynamic actions of rat islet amyloid polypeptide in conscious Long-Evans rats.
484 1860559 Rat synthetic amidated islet amyloid polypeptide (IAPP) was infused into conscious Long-Evans rats chronically instrumented for the measurement of regional hemodynamics.
485 1860564 Lack of effect of islet amyloid polypeptide in causing insulin resistance in conscious dogs during euglycemic clamp studies.
486 1860564 In this study, we administered constant intravenous infusions of human islet amyloid polypeptide (hIAPP) to conscious dogs during euglycemic glucose-clamp studies.
487 1860564 Lack of effect of islet amyloid polypeptide in causing insulin resistance in conscious dogs during euglycemic clamp studies.
488 1860564 In this study, we administered constant intravenous infusions of human islet amyloid polypeptide (hIAPP) to conscious dogs during euglycemic glucose-clamp studies.
489 1876601 Inhibitory action of islet amyloid polypeptide and calcitonin gene-related peptide on release of insulin from the isolated perfused rat pancreas.
490 1876601 The purpose of this study was to examine the effects of IAPP and CGRP on glucose- and carbachol-stimulated release of insulin and pancreatic polypeptide (PP) from the isolated perfused rat pancreas.
491 1876601 At the same concentration, however, IAPP significantly (p less than 0.05) inhibited carbachol-stimulated (10(-7) M) release of insulin by 30%, and CGRP significantly inhibited carbachol-stimulated release of insulin by 33% when compared with the control group.
492 1876601 IAPP and CGRP, at 10(-8) M, did not inhibit carbachol-stimulated release of insulin and PP.
493 1880936 However, the responsiveness of VLDL to LPL might be under the control of triglyceride (TG)/surface component ratios but not of the apoprotein ratios in ordinary circumstances judging from the results of the releases of fatty acids from VLDL by LPL in vitro.
494 1880936 Since high density lipoproteins (HDL) from patients in acute phases contain a large amount of serum amyloid A protein (SAA), the percentages of apo A proteins markedly decreased.
495 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
496 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
497 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
498 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
499 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
500 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
501 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
502 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
503 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
504 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
505 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
506 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
507 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
508 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
509 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
510 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
511 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
512 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
513 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
514 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
515 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
516 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
517 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
518 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
519 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
520 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
521 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
522 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
523 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
524 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
525 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
526 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
527 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
528 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
529 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
530 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
531 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
532 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
533 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
534 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
535 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
536 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
537 1884903 Localisation of islet amyloid polypeptide and its carboxy terminal flanking peptide in islets of diabetic man and monkey.
538 1884903 Islet amyloid polypeptide is a normal constituent of islet Beta cells and is derived from a larger precursor by removal of flanking peptides at the carboxy (C) and amino (N) terminals.
539 1884903 The role of these flanking peptides in the formation of amyloid in Type 2 (non-insulin-dependent) diabetes mellitus and in insulinomas is unknown.
540 1884903 The C-terminal flanking peptide of islet amyloid polypeptide was localised by immunocytochemistry in human and monkey pancreatic islets from Type 2 diabetic and non-diabetic individuals by use of specific polyclonal antisera.
541 1884903 Immunoreactivity for the C-terminal peptide was found in insulin-containing cells in both diabetic and non-diabetic tissue: no antibody binding was detected in islet amyloid of Type 2 diabetic man or of monkeys although a positive reaction occurred with antisera for islet amyloid polypeptide.
542 1884903 The C-terminal peptide was localised by immunogold electron microscopy in the insulin granules in both diabetic and non-diabetic individuals but, unlike islet amyloid polypeptide, was not detected in lysosomes.
543 1884903 The absence of immunoreactivity for the C-terminal peptide in amyloid suggests that incomplete cleavage of this flanking peptide from islet amyloid polypeptide is not a factor in the formation of islet amyloid.
544 1891461 Amylin is the major component of the amyloid found in the pancreases of noninsulin-dependent diabetics (type 2 diabetes).
545 1924295 Alz-50, a monoclonal antibody against abnormally phosphorylated tau proteins, stained neurons along the cortical needle track at 2 but not 7 days after injection of either amyloid or lipofuscin.
546 1924295 At 1 month, however, ubiquitin, Alz-50 antigen, and silver-positive structures were observed only in response to amyloid.
547 1924295 Alz-50, a monoclonal antibody against abnormally phosphorylated tau proteins, stained neurons along the cortical needle track at 2 but not 7 days after injection of either amyloid or lipofuscin.
548 1924295 At 1 month, however, ubiquitin, Alz-50 antigen, and silver-positive structures were observed only in response to amyloid.
549 1950379 Amylin, a peptide, which was isolated from the islet amyloid of type II diabetics, might play a potential role in the pathogenesis of type II diabetes mellitus.
550 1970540 Islet amyloid polypeptide response to glucose, insulin, and somatostatin analogue administration.
551 1970540 We determined islet amyloid polypeptide (IAPP) response in plasma to oral and intravenous glucose administration and intravenous insulin injection in nondiabetic subjects.
552 1970540 Islet amyloid polypeptide response to glucose, insulin, and somatostatin analogue administration.
553 1970540 We determined islet amyloid polypeptide (IAPP) response in plasma to oral and intravenous glucose administration and intravenous insulin injection in nondiabetic subjects.
554 1990240 Effects of ciglitazone on endogenous plasma islet amyloid polypeptide and insulin sensitivity in obese-diabetic viable yellow mice.
555 1990240 The role of islet amyloid polypeptide, also known as amylin, in insulin resistance and in the etiology of diabetes has been a subject of debate.
556 1990240 Effects of ciglitazone on endogenous plasma islet amyloid polypeptide and insulin sensitivity in obese-diabetic viable yellow mice.
557 1990240 The role of islet amyloid polypeptide, also known as amylin, in insulin resistance and in the etiology of diabetes has been a subject of debate.
558 1991568 The recent discovery of the islet amyloid polypeptide (IAPP) or amylin, which is the major constituent of islet amyloid deposits, is integrated into this hypothesis.
559 1991568 It is suggested that pro-IAPP and proinsulin processing and mature peptide secretion normally occur together and that abnormal processing, secondary to or in conjunction with defects in hormone secretion, lead to progressive accumulation of intracellular IAPP and pro-IAPP, which in cats, monkeys, and humans form intracellular fibrils and amyloid deposits with a loss of beta-cell mass.
560 1991568 The recent discovery of the islet amyloid polypeptide (IAPP) or amylin, which is the major constituent of islet amyloid deposits, is integrated into this hypothesis.
561 1991568 It is suggested that pro-IAPP and proinsulin processing and mature peptide secretion normally occur together and that abnormal processing, secondary to or in conjunction with defects in hormone secretion, lead to progressive accumulation of intracellular IAPP and pro-IAPP, which in cats, monkeys, and humans form intracellular fibrils and amyloid deposits with a loss of beta-cell mass.
562 1999270 Newly identified pancreatic protein islet amyloid polypeptide.
563 1999270 Islet amyloid polypeptide (IAPP) or amylin is a newly identified 37-amino acid COOH-terminal-amidated polypeptide that is the major protein constituent of amyloid deposits in insulinomas and amyloid deposits in pancreatic islets of non-insulin-dependent (type II) diabetic humans and adult diabetic cats.
564 1999270 Newly identified pancreatic protein islet amyloid polypeptide.
565 1999270 Islet amyloid polypeptide (IAPP) or amylin is a newly identified 37-amino acid COOH-terminal-amidated polypeptide that is the major protein constituent of amyloid deposits in insulinomas and amyloid deposits in pancreatic islets of non-insulin-dependent (type II) diabetic humans and adult diabetic cats.
566 1999269 Is islet amyloid polypeptide a significant factor in pathogenesis or pathophysiology of diabetes?
567 1999269 Islet amyloid polypeptide (IAPP) or amylin, a recently discovered minor secretory peptide of the beta-cell related to calcitonin gene-related peptide (CGRP), is a constituent of amyloid deposits in the islets of many non-insulin-dependent (type II) diabetic individuals and some elderly nondiabetic subjects.
568 1999269 Like CGRP, IAPP antagonizes the action of insulin mainly at the level of muscle glycogen synthesis, but the levels required for this effect seem to be considerably higher than reported circulating levels.
569 1999269 Is islet amyloid polypeptide a significant factor in pathogenesis or pathophysiology of diabetes?
570 1999269 Islet amyloid polypeptide (IAPP) or amylin, a recently discovered minor secretory peptide of the beta-cell related to calcitonin gene-related peptide (CGRP), is a constituent of amyloid deposits in the islets of many non-insulin-dependent (type II) diabetic individuals and some elderly nondiabetic subjects.
571 1999269 Like CGRP, IAPP antagonizes the action of insulin mainly at the level of muscle glycogen synthesis, but the levels required for this effect seem to be considerably higher than reported circulating levels.
572 2000701 Amyloid protein in somatostatinoma differs from human islet amyloid polypeptide.
573 2000701 To examine the characteristics of this amyloid, we compared amyloid deposits in a somatostatinoma to those found in pancreatic tissue in patients with Type II diabetes mellitus and in insulinomas, using immunohistochemical techniques and specific antibodies to islet amyloid polypeptide or other pancreatic hormones, as well as electron-microscopy.
574 2000701 Antibodies to islet amyloid polypeptide regions 8-17 or 25-37 were confirmed to be specific.
575 2000701 Amyloid deposits in patients with Type II diabetes mellitus and in insulinomas, but not those in the somatostatinoma strongly reacted with these antibodies, or to an antibody to amyloid P component.
576 2000701 As amyloid in somatostatinomas is unlike that consisting of islet amyloid polypeptide or other mature pancreatic hormones, it may be a novel type of local amyloid in pancreatic islets.
577 2000701 Amyloid protein in somatostatinoma differs from human islet amyloid polypeptide.
578 2000701 To examine the characteristics of this amyloid, we compared amyloid deposits in a somatostatinoma to those found in pancreatic tissue in patients with Type II diabetes mellitus and in insulinomas, using immunohistochemical techniques and specific antibodies to islet amyloid polypeptide or other pancreatic hormones, as well as electron-microscopy.
579 2000701 Antibodies to islet amyloid polypeptide regions 8-17 or 25-37 were confirmed to be specific.
580 2000701 Amyloid deposits in patients with Type II diabetes mellitus and in insulinomas, but not those in the somatostatinoma strongly reacted with these antibodies, or to an antibody to amyloid P component.
581 2000701 As amyloid in somatostatinomas is unlike that consisting of islet amyloid polypeptide or other mature pancreatic hormones, it may be a novel type of local amyloid in pancreatic islets.
582 2000701 Amyloid protein in somatostatinoma differs from human islet amyloid polypeptide.
583 2000701 To examine the characteristics of this amyloid, we compared amyloid deposits in a somatostatinoma to those found in pancreatic tissue in patients with Type II diabetes mellitus and in insulinomas, using immunohistochemical techniques and specific antibodies to islet amyloid polypeptide or other pancreatic hormones, as well as electron-microscopy.
584 2000701 Antibodies to islet amyloid polypeptide regions 8-17 or 25-37 were confirmed to be specific.
585 2000701 Amyloid deposits in patients with Type II diabetes mellitus and in insulinomas, but not those in the somatostatinoma strongly reacted with these antibodies, or to an antibody to amyloid P component.
586 2000701 As amyloid in somatostatinomas is unlike that consisting of islet amyloid polypeptide or other mature pancreatic hormones, it may be a novel type of local amyloid in pancreatic islets.
587 2000701 Amyloid protein in somatostatinoma differs from human islet amyloid polypeptide.
588 2000701 To examine the characteristics of this amyloid, we compared amyloid deposits in a somatostatinoma to those found in pancreatic tissue in patients with Type II diabetes mellitus and in insulinomas, using immunohistochemical techniques and specific antibodies to islet amyloid polypeptide or other pancreatic hormones, as well as electron-microscopy.
589 2000701 Antibodies to islet amyloid polypeptide regions 8-17 or 25-37 were confirmed to be specific.
590 2000701 Amyloid deposits in patients with Type II diabetes mellitus and in insulinomas, but not those in the somatostatinoma strongly reacted with these antibodies, or to an antibody to amyloid P component.
591 2000701 As amyloid in somatostatinomas is unlike that consisting of islet amyloid polypeptide or other mature pancreatic hormones, it may be a novel type of local amyloid in pancreatic islets.
592 2000701 Amyloid protein in somatostatinoma differs from human islet amyloid polypeptide.
593 2000701 To examine the characteristics of this amyloid, we compared amyloid deposits in a somatostatinoma to those found in pancreatic tissue in patients with Type II diabetes mellitus and in insulinomas, using immunohistochemical techniques and specific antibodies to islet amyloid polypeptide or other pancreatic hormones, as well as electron-microscopy.
594 2000701 Antibodies to islet amyloid polypeptide regions 8-17 or 25-37 were confirmed to be specific.
595 2000701 Amyloid deposits in patients with Type II diabetes mellitus and in insulinomas, but not those in the somatostatinoma strongly reacted with these antibodies, or to an antibody to amyloid P component.
596 2000701 As amyloid in somatostatinomas is unlike that consisting of islet amyloid polypeptide or other mature pancreatic hormones, it may be a novel type of local amyloid in pancreatic islets.
597 2010042 This protein, termed islet amyloid polypeptide, is related to two neuropeptides, calcitonin gene-related peptides 1 and 2, and represents a new beta-cell secretory product whose normal physiological function remains to be determined.
598 2010042 Characterization of the insulin-receptor gene in patients with extreme forms of insulin resistance has resulted in the identification of mutations that impair its function and lead to tissue resistance to the action of insulin.
599 2015054 Depletion of islet amyloid polypeptide in the spontaneously diabetic (BB) Wistar rat.
600 2015054 Islet amyloid polypeptide (IAPP) in the pancreas of the spontaneously diabetic (BB) Wistar rat was examined by radioimmunoassay, and IAPP mRNA levels were determined by Northern blotting.
601 2015054 Insulin mRNA was dramatically reduced to only 4% of the control group and, in contrast, somatostatin was relatively unaffected, with the diabetic group retaining 86% of signal compared with the controls.
602 2015054 Depletion of islet amyloid polypeptide in the spontaneously diabetic (BB) Wistar rat.
603 2015054 Islet amyloid polypeptide (IAPP) in the pancreas of the spontaneously diabetic (BB) Wistar rat was examined by radioimmunoassay, and IAPP mRNA levels were determined by Northern blotting.
604 2015054 Insulin mRNA was dramatically reduced to only 4% of the control group and, in contrast, somatostatin was relatively unaffected, with the diabetic group retaining 86% of signal compared with the controls.
605 2028355 This review discusses recent advances in understanding of the structure and function of the insulin receptor and insulin action, and how these relate to the clinical aspects of insulin resistance associated with non-insulin-dependent diabetes and other disorders.
606 2028355 Receptor-mediated insulin resistance may be a consequence of various factors including increased serine/threonine phosphorylation of the receptor with decreased tyrosine phosphorylation, receptor desensitization, auto-antibodies to the receptor and inherited structural defects in the insulin receptor.
607 2028355 Other circulating hormones, such as the newly characterised islet amyloid polypeptide (amylin), may also cause insulin resistance.
608 2035254 Islet amyloid polypeptide in insulinoma and in the islets of the pancreas of non-diabetic and diabetic subjects.
609 2035254 The present immunohistochemical study revealed that normal B-cells, insulinoma, and amyloid deposits in insulinoma and diabetic pancreatic islets were commonly immunoreactive with antiserum to C-terminal synthetic tetradecapeptide of human islet amyloid polypeptide (IAPP) (24-37).
610 2035254 Islet amyloid polypeptide in insulinoma and in the islets of the pancreas of non-diabetic and diabetic subjects.
611 2035254 The present immunohistochemical study revealed that normal B-cells, insulinoma, and amyloid deposits in insulinoma and diabetic pancreatic islets were commonly immunoreactive with antiserum to C-terminal synthetic tetradecapeptide of human islet amyloid polypeptide (IAPP) (24-37).
612 2036958 Hypersecretion of islet amyloid polypeptide from pancreatic islets of ventromedial hypothalamic-lesioned rats and obese Zucker rats.
613 2036958 To investigate the possible role of islet amyloid polypeptide (IAPP) in the development of type 2 diabetes mellitus, we examined the IAPP content and secretion in pancreatic islets isolated from ventromedial hypothalamic (VMH)-lesioned rats and genetically obese Zucker rats, using a specific RIA for IAPP.
614 2036958 Hypersecretion of islet amyloid polypeptide from pancreatic islets of ventromedial hypothalamic-lesioned rats and obese Zucker rats.
615 2036958 To investigate the possible role of islet amyloid polypeptide (IAPP) in the development of type 2 diabetes mellitus, we examined the IAPP content and secretion in pancreatic islets isolated from ventromedial hypothalamic (VMH)-lesioned rats and genetically obese Zucker rats, using a specific RIA for IAPP.
616 2043439 Musculoskeletal problems in chronic renal failure are common, but investigations into their pathogenesis are complicated by the coexistence of renal endocrine failure and beta 2-microglobulin-related amyloid deposition in long-term dialysis patients.
617 2059220 Amylin, an islet amyloid peptide secreted by the pancreatic beta cell, has been proposed as a humoral regulator of islet insulin secretion.
618 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
619 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
620 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
621 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
622 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
623 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
624 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
625 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
626 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
627 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
628 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
629 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
630 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
631 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
632 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
633 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
634 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
635 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
636 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
637 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
638 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
639 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
640 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
641 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
642 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
643 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
644 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
645 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
646 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
647 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
648 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
649 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
650 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
651 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
652 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
653 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
654 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
655 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
656 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
657 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
658 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
659 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
660 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
661 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
662 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
663 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
664 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
665 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
666 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
667 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
668 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
669 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
670 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
671 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
672 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
673 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
674 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
675 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
676 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
677 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
678 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
679 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
680 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
681 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
682 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
683 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
684 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
685 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
686 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
687 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
688 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
689 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
690 2065848 Plasma islet amyloid polypeptide (Amylin) levels and their responses to oral glucose in type 2 (non-insulin-dependent) diabetic patients.
691 2065848 Fasting plasma islet amyloid polypeptide concentrations and their responses to an oral glucose load were determined in non-diabetic control subjects and patients with abnormal glucose tolerance in relation to the responses of insulin or C-peptide.
692 2065848 Plasma islet amyloid polypeptide was measured by radioimmunoassay.
693 2065848 In the non-diabetic control subjects, fasting plasma islet amyloid polypeptide was 6.4 +/- 0.5 fmol/ml (mean +/- SEM) and was about 1/7 less in molar basis than in insulin.
694 2065848 The fasting islet amyloid polypeptide level rose in obese patients and fell in patients with Type 1 (insulin-dependent) diabetes mellitus.
695 2065848 In non-obese patients with impaired glucose tolerance and Type 2 (non-insulin-dependent) diabetic patients without insulin therapy, the level was equal to that of the control subjects, but a low concentration of islet amyloid polypeptide relative to insulin or C-peptide was observed in the non-obese Type 2 diabetic group.
696 2065848 The patterns of plasma islet amyloid polypeptide responses after oral glucose were similar to those of insulin or C-peptide.
697 2065848 However, compared to non-obese patients, a hyper-response of islet amyloid polypeptide relative to C-peptide was noted in obese patients who had a hyper-response of insulin relative to C-peptide.
698 2065848 This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
699 2078850 Islet amyloid polypeptide (IAPP) in the gastrointestinal tract and pancreas of man and rat.
700 2078850 An immunohistochemical study for islet amyloid polypeptide (IAPP) was made on the gastrointestinal (GI) tract and pancreas of man and rat, using antisera raised against a synthetic peptide of C-terminal human IAPP (24-37) and a synthetic peptide of rat IAPP (18-37).
701 2078850 An examination was made for evidence of colocalization of IAPP-immunoreactive material with material immunoreactive for gastrin, somatostatin, vasoactive intestinal polypeptide, pancreatic polypeptide, insulin, and glucagon, but none was found.
702 2078850 IAPP-immunoreactive cells were also found in the pancreas of non-diabetic and non-insulin-dependent diabetic patients, but they were completely absent from a patient with insulin-dependent diabetes mellitus despite the presence of IAPP in the plasma.
703 2078850 Islet amyloid polypeptide (IAPP) in the gastrointestinal tract and pancreas of man and rat.
704 2078850 An immunohistochemical study for islet amyloid polypeptide (IAPP) was made on the gastrointestinal (GI) tract and pancreas of man and rat, using antisera raised against a synthetic peptide of C-terminal human IAPP (24-37) and a synthetic peptide of rat IAPP (18-37).
705 2078850 An examination was made for evidence of colocalization of IAPP-immunoreactive material with material immunoreactive for gastrin, somatostatin, vasoactive intestinal polypeptide, pancreatic polypeptide, insulin, and glucagon, but none was found.
706 2078850 IAPP-immunoreactive cells were also found in the pancreas of non-diabetic and non-insulin-dependent diabetic patients, but they were completely absent from a patient with insulin-dependent diabetes mellitus despite the presence of IAPP in the plasma.
707 2109283 On electron-microscopy, collagen fibres were seen, while beta 2-M amyloid was consistently absent.
708 2162304 Activation of adenylate cyclase by islet amyloid polypeptide with COOH-terminal amide via calcitonin gene-related peptide receptors on rat liver plasma membranes.
709 2162304 Both human and rat islet amyloid polypeptide with COOH-terminal amide (IAPP-NH2) dose-dependently displaced the specific binding of 125I-labeled [Tyr0] rat alpha-calcitonin gene-related peptide (CGRP) to rat liver plasma membranes, whereas human IAPP (IAPP-COOH) had no effect.
710 2162304 Conversely, human or rat IAPP-NH2 but not human IAPP-COOH evoked dose-dependent activation of adenylate cyclase in the membranes, and these effects were significantly inhibited by the CGRP-receptor antagonist human CGRP-1(8-37).
711 2162304 Thus, IAPP-NH2 but not IAPP-COOH appears to induce adenylate cyclase activation via CGRP receptors on rat liver plasma membranes.
712 2162304 Activation of adenylate cyclase by islet amyloid polypeptide with COOH-terminal amide via calcitonin gene-related peptide receptors on rat liver plasma membranes.
713 2162304 Both human and rat islet amyloid polypeptide with COOH-terminal amide (IAPP-NH2) dose-dependently displaced the specific binding of 125I-labeled [Tyr0] rat alpha-calcitonin gene-related peptide (CGRP) to rat liver plasma membranes, whereas human IAPP (IAPP-COOH) had no effect.
714 2162304 Conversely, human or rat IAPP-NH2 but not human IAPP-COOH evoked dose-dependent activation of adenylate cyclase in the membranes, and these effects were significantly inhibited by the CGRP-receptor antagonist human CGRP-1(8-37).
715 2162304 Thus, IAPP-NH2 but not IAPP-COOH appears to induce adenylate cyclase activation via CGRP receptors on rat liver plasma membranes.
716 2172004 Aberrant expression of the islet amyloid polypeptide (IAPP) gene might be involved in the pathogenesis of non-insulin-dependent diabetes mellitus (NIDDM).
717 2182015 The putative hormone islet amyloid polypeptide (IAPP) induces impaired glucose tolerance in cats.
718 2182015 Islet amyloid polypeptide (IAPP) has been implicated by in vitro studies as an inhibitor of insulin-stimulated glucose utilization by skeletal muscle cells and also as an inhibitor of insulin-stimulated insulin secretion by beta cells.
719 2182015 The putative hormone islet amyloid polypeptide (IAPP) induces impaired glucose tolerance in cats.
720 2182015 Islet amyloid polypeptide (IAPP) has been implicated by in vitro studies as an inhibitor of insulin-stimulated glucose utilization by skeletal muscle cells and also as an inhibitor of insulin-stimulated insulin secretion by beta cells.
721 2183542 Failure of islet amyloid polypeptide to inhibit basal and glucose-stimulated insulin secretion in model experiments in mice and rats.
722 2183542 Islet amyloid polypeptide (IAPP), also known as amylin, has previously been demonstrated to occur in amyloid deposits in pancreatic islets in type 2 diabetics, and, therefore, the peptide has been suggested to be involved in the pathogenesis of diabetes.
723 2183542 The 37 amino acid peptide shows approximately 50% homology with the intrapancreatic neuropeptide calcitonin gene-related peptide (CGRP), a peptide that inhibits insulin secretion.
724 2183542 IAPP was given intravenously, at dose levels at which CGRP previously has been shown to inhibit insulin secretion.
725 2183542 Hence, in mice and rats, IAPP does not inhibit insulin secretion under experimental conditions identical to those previously used to demonstrate an inhibition by CGRP.
726 2183542 Therefore, we conclude (1) that the homologous amino acid sequence within IAPP and CGRP does not seem to be sufficient for inducing inhibition of insulin release in mice and rats and (2) that the possible involvement of IAPP in the pathogenesis of diabetes type 2 still remains speculative.
727 2183542 Failure of islet amyloid polypeptide to inhibit basal and glucose-stimulated insulin secretion in model experiments in mice and rats.
728 2183542 Islet amyloid polypeptide (IAPP), also known as amylin, has previously been demonstrated to occur in amyloid deposits in pancreatic islets in type 2 diabetics, and, therefore, the peptide has been suggested to be involved in the pathogenesis of diabetes.
729 2183542 The 37 amino acid peptide shows approximately 50% homology with the intrapancreatic neuropeptide calcitonin gene-related peptide (CGRP), a peptide that inhibits insulin secretion.
730 2183542 IAPP was given intravenously, at dose levels at which CGRP previously has been shown to inhibit insulin secretion.
731 2183542 Hence, in mice and rats, IAPP does not inhibit insulin secretion under experimental conditions identical to those previously used to demonstrate an inhibition by CGRP.
732 2183542 Therefore, we conclude (1) that the homologous amino acid sequence within IAPP and CGRP does not seem to be sufficient for inducing inhibition of insulin release in mice and rats and (2) that the possible involvement of IAPP in the pathogenesis of diabetes type 2 still remains speculative.
733 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
734 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
735 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
736 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
737 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
738 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
739 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
740 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
741 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
742 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
743 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
744 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
745 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
746 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
747 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
748 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
749 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
750 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
751 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
752 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
753 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
754 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
755 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
756 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
757 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
758 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
759 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
760 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
761 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
762 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
763 2184060 Islet amyloid polypeptide amide causes peripheral insulin resistance in vivo in dogs.
764 2184060 Islet amyloid polypeptide is a 37 amino acid hormone-like peptide which is the major protein component of islet amyloid deposits commonly found in patients with Type 2 (non-insulin-dependent) diabetes mellitus.
765 2184060 In order to clarify the possible in vivo actions of islet amyloid polypeptide, we have studied the effects of synthesized islet amyloid polypeptide-amide on peripheral glucose utilization by performing hyperinsulinaemic euglycaemic glucose clamp studies on dogs.
766 2184060 Exogenously administered islet amyloid polypeptide-amide (an infusion from 1.0 to 100 micrograms.kg-1.h-1, over 2 h) inhibited the insulin-stimulated glucose disposal rate in a dose dependent manner.
767 2184060 Twenty-five micrograms.kg-1.h-1 of islet amyloid polypeptide-amide infused via a peripheral vein significantly lowered the glucose disposal rate by 20% (from 17.4 +/- 1.7 to 14.4 +/- 1.7 mg.kg-1.min-1, n = 5, p less than 0.01).
768 2184060 These findings suggest that islet amyloid polypeptide-amide causes peripheral insulin resistance in vivo.
769 2185112 Evidence of cosecretion of islet amyloid polypeptide and insulin by beta-cells.
770 2185112 Islet amyloid polypeptide (IAPP) has been identified as the major constituent of the pancreatic amyloid of non-insulin-dependent diabetes mellitus (NIDDM) and is also present in normal beta-cell secretory granules.
771 2185112 Evidence of cosecretion of islet amyloid polypeptide and insulin by beta-cells.
772 2185112 Islet amyloid polypeptide (IAPP) has been identified as the major constituent of the pancreatic amyloid of non-insulin-dependent diabetes mellitus (NIDDM) and is also present in normal beta-cell secretory granules.
773 2191889 Lack of islet amyloid polypeptide regulation of insulin biosynthesis or secretion in normal rat islets.
774 2191889 We examined the effects of rat islet amyloid polypeptide (IAPP) on insulin biosynthesis and secretion by isolated rat islets of Langerhans.
775 2191889 Lack of islet amyloid polypeptide regulation of insulin biosynthesis or secretion in normal rat islets.
776 2191889 We examined the effects of rat islet amyloid polypeptide (IAPP) on insulin biosynthesis and secretion by isolated rat islets of Langerhans.
777 2192709 Islet amyloid polypeptide (IAPP) is a recently discovered pancreatic islet hormone which is stored with insulin in beta cell granules.
778 2192709 IAPP may have a significant role in the development of Type 2 diabetes mellitus due to its propensity to form islet cell-disrupting amyloid deposits, and by opposing the action of insulin in peripheral tissues.
779 2192709 Islet amyloid polypeptide (IAPP) is a recently discovered pancreatic islet hormone which is stored with insulin in beta cell granules.
780 2192709 IAPP may have a significant role in the development of Type 2 diabetes mellitus due to its propensity to form islet cell-disrupting amyloid deposits, and by opposing the action of insulin in peripheral tissues.
781 2195544 Islet amyloid polypeptide: pinpointing amino acid residues linked to amyloid fibril formation.
782 2195544 Islet amyloid polypeptide (IAPP), a putative polypeptide hormone, is a product of pancreatic beta-cells and the major constituent of the amyloid deposits seen mainly in islets of type 2 diabetic humans and diabetic cats.
783 2195544 Islet amyloid polypeptide: pinpointing amino acid residues linked to amyloid fibril formation.
784 2195544 Islet amyloid polypeptide (IAPP), a putative polypeptide hormone, is a product of pancreatic beta-cells and the major constituent of the amyloid deposits seen mainly in islets of type 2 diabetic humans and diabetic cats.
785 2198187 Islet amyloid polypeptide in diabetic and non-diabetic Pima Indians.
786 2198187 Islet amyloid may have a pathological role in the development of Type 2 (non-insulin-dependent) diabetes mellitus.
787 2198187 Islets were examined for amyloid deposits and for cellular immunoreactivity to pancreatic hormones and islet amyloid polypeptide, the constituent peptide of islet amyloid.
788 2198187 Islet amyloid in diabetic Pima Indians may indicate a primary Beta-cell defect which interacts with insulin resistance to produce diabetes, or may develop as a result of Beta-cell dysfunction induced by insulin resistance and hyperglycaemia.
789 2198187 Islet amyloid polypeptide in diabetic and non-diabetic Pima Indians.
790 2198187 Islet amyloid may have a pathological role in the development of Type 2 (non-insulin-dependent) diabetes mellitus.
791 2198187 Islets were examined for amyloid deposits and for cellular immunoreactivity to pancreatic hormones and islet amyloid polypeptide, the constituent peptide of islet amyloid.
792 2198187 Islet amyloid in diabetic Pima Indians may indicate a primary Beta-cell defect which interacts with insulin resistance to produce diabetes, or may develop as a result of Beta-cell dysfunction induced by insulin resistance and hyperglycaemia.
793 2198187 Islet amyloid polypeptide in diabetic and non-diabetic Pima Indians.
794 2198187 Islet amyloid may have a pathological role in the development of Type 2 (non-insulin-dependent) diabetes mellitus.
795 2198187 Islets were examined for amyloid deposits and for cellular immunoreactivity to pancreatic hormones and islet amyloid polypeptide, the constituent peptide of islet amyloid.
796 2198187 Islet amyloid in diabetic Pima Indians may indicate a primary Beta-cell defect which interacts with insulin resistance to produce diabetes, or may develop as a result of Beta-cell dysfunction induced by insulin resistance and hyperglycaemia.
797 2198187 Islet amyloid polypeptide in diabetic and non-diabetic Pima Indians.
798 2198187 Islet amyloid may have a pathological role in the development of Type 2 (non-insulin-dependent) diabetes mellitus.
799 2198187 Islets were examined for amyloid deposits and for cellular immunoreactivity to pancreatic hormones and islet amyloid polypeptide, the constituent peptide of islet amyloid.
800 2198187 Islet amyloid in diabetic Pima Indians may indicate a primary Beta-cell defect which interacts with insulin resistance to produce diabetes, or may develop as a result of Beta-cell dysfunction induced by insulin resistance and hyperglycaemia.
801 2202297 Islet amyloid polypeptide (IAPP) does not inhibit glucose-stimulated insulin secretion from isolated perfused rat pancreas.
802 2202297 Islet amyloid polypeptide (IAPP) is a recently discovered pancreatic islet hormone which is stored with insulin in the secretory vesicles of beta cells.
803 2202297 Islet amyloid polypeptide (IAPP) does not inhibit glucose-stimulated insulin secretion from isolated perfused rat pancreas.
804 2202297 Islet amyloid polypeptide (IAPP) is a recently discovered pancreatic islet hormone which is stored with insulin in the secretory vesicles of beta cells.
805 2210054 Structure of cat islet amyloid polypeptide and identification of amino acid residues of potential significance for islet amyloid formation.
806 2210054 Cats and humans, unlike most rodent species, develop amyloid in the islets of Langerhans in conjunction with non-insulin-dependent diabetes mellitus.
807 2210054 The amyloid consists of a 37-amino acid polypeptide referred to as islet amyloid polypeptide (IAPP).
808 2210054 Structure of cat islet amyloid polypeptide and identification of amino acid residues of potential significance for islet amyloid formation.
809 2210054 Cats and humans, unlike most rodent species, develop amyloid in the islets of Langerhans in conjunction with non-insulin-dependent diabetes mellitus.
810 2210054 The amyloid consists of a 37-amino acid polypeptide referred to as islet amyloid polypeptide (IAPP).
811 2210054 Structure of cat islet amyloid polypeptide and identification of amino acid residues of potential significance for islet amyloid formation.
812 2210054 Cats and humans, unlike most rodent species, develop amyloid in the islets of Langerhans in conjunction with non-insulin-dependent diabetes mellitus.
813 2210054 The amyloid consists of a 37-amino acid polypeptide referred to as islet amyloid polypeptide (IAPP).
814 2212934 Islet amyloid polypeptide-like immunoreactivity (amylin) in rats treated with dexamethasone and streptozotocin.
815 2212934 Islet amyloid polypeptide (IAPP) is a 37 amino acid peptide present in pancreatic beta-cells.
816 2212934 Islet amyloid polypeptide-like immunoreactivity (amylin) in rats treated with dexamethasone and streptozotocin.
817 2212934 Islet amyloid polypeptide (IAPP) is a 37 amino acid peptide present in pancreatic beta-cells.
818 2223885 Islet amyloid polypeptide: structure and upstream sequences of the IAPP gene in rat and man.
819 2223885 Islet amyloid polypeptide (IAPP) or amylin is a pancreatic islet hormone which was first found in amyloid in insulinomas and in pancreases of patients with type 2 diabetes.
820 2223885 Islet amyloid polypeptide: structure and upstream sequences of the IAPP gene in rat and man.
821 2223885 Islet amyloid polypeptide (IAPP) or amylin is a pancreatic islet hormone which was first found in amyloid in insulinomas and in pancreases of patients with type 2 diabetes.
822 2226108 Lowering fasting blood glucose to normal with a basal insulin supplement reduces endogenous insulin production, and this may be advantageous if accompanying production of islet amyloid polypeptide and islet amyloid formation are also reduced.
823 2226190 [Amylin, islet amyloid and diabetes mellitus type II].
824 2227135 During hyperinsulinemic glucose-clamp studies, intravenous infusion of calcitonin gene-related peptide (CGRP) in rats antagonized the ability of insulin to stimulate peripheral glucose disposal by 52% (196 +/- 7.2 vs. 105 +/- 10.5 mumol.kg-1.min-1, P less than 0.05) and to inhibit hepatic glucose output by 54% (P less than 0.01).
825 2227135 CGRP also inhibited the in vitro effects of insulin to stimulate hexose uptake in cultured BC3H1 myocytes at all insulin concentrations studied.
826 2227135 Amylin is a peptide isolated from amyloid deposits in pancreatic islets of type II (non-insulin-dependent) diabetic subjects, is present in normal beta-cells, and bears a striking homology to CGRP.
827 2227135 Therefore, amylin and CGRP can cause insulin resistance in vivo and may be implicated in insulin-resistant states such as type II diabetes mellitus.
828 2251644 Islet amyloid and type 2 (non-insulin-dependent) diabetes.
829 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
830 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
831 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
832 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
833 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
834 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
835 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
836 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
837 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
838 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
839 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
840 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
841 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
842 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
843 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
844 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
845 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
846 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
847 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
848 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
849 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
850 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
851 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
852 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
853 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
854 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
855 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
856 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
857 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
858 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
859 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
860 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
861 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
862 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
863 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
864 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
865 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
866 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
867 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
868 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
869 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
870 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
871 2258001 Islet amyloid polypeptide (amylin): no evidence of an abnormal precursor sequence in 25 type 2 (non-insulin-dependent) diabetic patients.
872 2258001 Islet amyloid polypeptide is the major protein component of the islet amyloid of patients with Type 2 (non-insulin-dependent) diabetes mellitus.
873 2258001 Since the synthesis of a structurally abnormal or mutant protein may contribute to the formation of amyloid deposits, we have examined the possibility that a mutant form of islet amyloid polypeptide or its precursor contributes to the formation of islet amyloid in Type 2 diabetic patients.
874 2258001 We have sequenced the islet amyloid polypeptide precursor coding regions of the gene of 25 patients with Type 2 diabetes.
875 2258001 Genomic DNA fragments corresponding to exon 2 and 3 of the islet amyloid polypeptide gene were amplified from patients' peripheral blood leucocyte DNAs using the polymerase chain reaction and specific oligonucleotide primer sets, and then directly sequenced.
876 2258001 The nucleotide sequences of the amplified regions of both alleles of the islet amyloid polypeptide gene of these 25 patients were identical to one another and to the sequence of an islet amyloid polypeptide allele isolated from a human fetal liver genomic library.
877 2258001 These findings suggest that a primary structural abnormality of islet amyloid polypeptide or its precursor is unlikely to play a significant role in the formation of islet amyloid in Type 2 diabetic patients.
878 2261856 Amylin, or islet amyloid polypeptide, is a 37-amino acid peptide isolated from pancreatic islet amyloid of patients with non-insulin-dependent diabetes mellitus (NIDDM).
879 2293024 Cloning of complementary DNAs encoding islet amyloid polypeptide, insulin, and glucagon precursors from a New World rodent, the degu, Octodon degus.
880 2293024 To help clarify these problems we have cloned cDNAs encoding islet amyloid polypeptide (IAPP), insulin, and glucagon precursors from this species.
881 2293024 Cloning of complementary DNAs encoding islet amyloid polypeptide, insulin, and glucagon precursors from a New World rodent, the degu, Octodon degus.
882 2293024 To help clarify these problems we have cloned cDNAs encoding islet amyloid polypeptide (IAPP), insulin, and glucagon precursors from this species.
883 2316620 Amylin amide, a 37-amino acid peptide that is a major component of amyloid deposits in the diabetic pancreas, possesses vasodilator activity.
884 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
885 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
886 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
887 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
888 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
889 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
890 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
891 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
892 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
893 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
894 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
895 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
896 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
897 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
898 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
899 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
900 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
901 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
902 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
903 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
904 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
905 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
906 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
907 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
908 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
909 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
910 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
911 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
912 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
913 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
914 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
915 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
916 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
917 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
918 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
919 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
920 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
921 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
922 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
923 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
924 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
925 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
926 2328845 Failure to establish islet amyloid polypeptide (amylin) as a circulating beta cell inhibiting hormone in man.
927 2328845 The presence of islet amyloid polypeptide in amyloid within pancreatic islet cells in Type 2 (non-insulin-dependent) diabetes, and its reported inhibition of glucose uptake by skeletal muscle in vitro, has prompted speculation concerning its role in the pathogenesis of diabetes.
928 2328845 We investigated the effect of infused synthetic amidated human islet amyloid polypeptide (mol. wt. 3904, confirmed by mass spectroscopy) on intravenous glucose tolerance.
929 2328845 Seven healthy, non-obese volunteers (age +/- SD, 27 +/- 4 years) were infused over 50 min with normal (0.9%) saline or islet amyloid polypeptide at 50 pmol.kg-1.min-1.
930 2328845 Circulating concentrations of islet amyloid polypeptide reached at steady state were 1130 +/- 90 pmol/l.
931 2328845 However, islet amyloid polypeptide was found to have no effect on the peak value reached, or the total area under the curve for plasma glucose, insulin or glucagon following intravenous glucose.
932 2328845 This study suggests circulating islet amyloid polypeptide may not be an important influence on intravenous glucose tolerance in man.
933 2409805 Ganglioneuronal amyloid had staining characteristics identical to those previously reported for islet amyloid, including 1) congophilia, 2) resistance to oxidation by KMnO4, 3) immunoreactivity (PAP technique) with antiserum to a B-chain-rich insulin fraction, and 4) no reactivity with antisera to insulin, glucagon, or somatostatin.
934 2409805 Nonneuronal cells with insulin, glucagon, and somatostatin immunoreactivity were seen in many pancreatic ganglia and nerves; and in a few instances, B cells were found near ganglioneuronal amyloid deposits.
935 2409805 The premise that these ganglioneuronal amyloid deposits (like islet amyloid) are insulin-related is supported by their immunoreactivity with antiserum to B-chain-rich insulin and the demonstration of B cells in pancreatic ganglia and nerves.
936 2409805 Ganglioneuronal amyloid had staining characteristics identical to those previously reported for islet amyloid, including 1) congophilia, 2) resistance to oxidation by KMnO4, 3) immunoreactivity (PAP technique) with antiserum to a B-chain-rich insulin fraction, and 4) no reactivity with antisera to insulin, glucagon, or somatostatin.
937 2409805 Nonneuronal cells with insulin, glucagon, and somatostatin immunoreactivity were seen in many pancreatic ganglia and nerves; and in a few instances, B cells were found near ganglioneuronal amyloid deposits.
938 2409805 The premise that these ganglioneuronal amyloid deposits (like islet amyloid) are insulin-related is supported by their immunoreactivity with antiserum to B-chain-rich insulin and the demonstration of B cells in pancreatic ganglia and nerves.
939 2409805 Ganglioneuronal amyloid had staining characteristics identical to those previously reported for islet amyloid, including 1) congophilia, 2) resistance to oxidation by KMnO4, 3) immunoreactivity (PAP technique) with antiserum to a B-chain-rich insulin fraction, and 4) no reactivity with antisera to insulin, glucagon, or somatostatin.
940 2409805 Nonneuronal cells with insulin, glucagon, and somatostatin immunoreactivity were seen in many pancreatic ganglia and nerves; and in a few instances, B cells were found near ganglioneuronal amyloid deposits.
941 2409805 The premise that these ganglioneuronal amyloid deposits (like islet amyloid) are insulin-related is supported by their immunoreactivity with antiserum to B-chain-rich insulin and the demonstration of B cells in pancreatic ganglia and nerves.
942 2441214 A novel peptide, 37 aminoacids long, termed diabetes-associated peptide (DAP), has been identified in amyloid-containing pancreatic extracts from 3 type-2 diabetic patients but not in extracts from 6 non-diabetic subjects.
943 2441214 DAP has major homology with calcitonin-gene related peptide (CGRP) and the islet amyloid of all 22 diabetics showed CGRP immunoreactivity.
944 2441214 The immunoreactivity was inhibited by preabsorption of three different CGRP antisera either with CGRP carboxyterminal peptide 28-37 or with extracted DAP.
945 2441214 Both diabetic and non-diabetic subjects had CGRP/DAP immunoreactivity in islet B-cells.
946 2441214 These results suggest that islet amyloid contains DAP, which may originate from B-cells.
947 2441214 A novel peptide, 37 aminoacids long, termed diabetes-associated peptide (DAP), has been identified in amyloid-containing pancreatic extracts from 3 type-2 diabetic patients but not in extracts from 6 non-diabetic subjects.
948 2441214 DAP has major homology with calcitonin-gene related peptide (CGRP) and the islet amyloid of all 22 diabetics showed CGRP immunoreactivity.
949 2441214 The immunoreactivity was inhibited by preabsorption of three different CGRP antisera either with CGRP carboxyterminal peptide 28-37 or with extracted DAP.
950 2441214 Both diabetic and non-diabetic subjects had CGRP/DAP immunoreactivity in islet B-cells.
951 2441214 These results suggest that islet amyloid contains DAP, which may originate from B-cells.
952 2441214 A novel peptide, 37 aminoacids long, termed diabetes-associated peptide (DAP), has been identified in amyloid-containing pancreatic extracts from 3 type-2 diabetic patients but not in extracts from 6 non-diabetic subjects.
953 2441214 DAP has major homology with calcitonin-gene related peptide (CGRP) and the islet amyloid of all 22 diabetics showed CGRP immunoreactivity.
954 2441214 The immunoreactivity was inhibited by preabsorption of three different CGRP antisera either with CGRP carboxyterminal peptide 28-37 or with extracted DAP.
955 2441214 Both diabetic and non-diabetic subjects had CGRP/DAP immunoreactivity in islet B-cells.
956 2441214 These results suggest that islet amyloid contains DAP, which may originate from B-cells.
957 2458216 Serum levels of six acute phase proteins (APP)--C-reactive protein (CRP), serum amyloid A (SAA), alpha 1-antitrypsin, haptoglobin and complement fractions C3 and C4--were serially studied in 24 patients with poorly controlled diabetes mellitus, ten of whom had unequivocal evidence of an underlying infection.
958 2458216 No correlation between the presence of infection, and fever, leukocytosis, a raised erythrocyte sedimentation rate, or serum levels of alpha 1-antitrypsin, haptoglobin or complement was apparent in these patients.
959 2458216 However, serum CRP and SAA were initially increased 10-100 times above normal in diabetic patients with an underlying infection (P less than 0.01); during the following week circulating levels of CRP and SAA decreased steadily in response to the infection being brought under control.
960 2458216 We conclude that serial measurement of CRP and/or SAA is a sensitive, albeit non-specific, parameter to detect and monitor the activity of infection in patients with diabetes.
961 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
962 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
963 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
964 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
965 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
966 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
967 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
968 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
969 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
970 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
971 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
972 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
973 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
974 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
975 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
976 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
977 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
978 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
979 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
980 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
981 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
982 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
983 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
984 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
985 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
986 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
987 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
988 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
989 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
990 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
991 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
992 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
993 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
994 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
995 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
996 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
997 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
998 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
999 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
1000 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
1001 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
1002 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
1003 2612759 Altered islet amyloid polypeptide (amylin) gene expression in rat models of diabetes.
1004 2612759 The response of the islet amyloid polypeptide gene to chronic dexamethasone treatment in adult rats was investigated.
1005 2612759 When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
1006 2612759 Pancreatic islet amyloid polypeptide and insulin mRNA levels were also determined 12 days after streptozotocin treatment.
1007 2612759 In these rats, which were not severely diabetic, the reduction in islet amyloid polypeptide mRNA levels was sixfold less than the reduction in insulin mRNA levels.
1008 2612759 In both these models of diabetes the ratio of islet amyloid polypeptide to insulin mRNA levels was raised.
1009 2612759 This would not be expected if the physiological role of islet amyloid polypeptide is as a simple hyperglycaemic agent opposing insulin action or release.
1010 2639135 Recently, islet- or insulinoma-amyloid polypeptide (IAPP) was isolated as a major constituent of amyloid present in human insulinoma and in pancreatic islet amyloid in noninsulin-dependent diabetes mellitus.
1011 2639135 IAPP shows 46% amino acid sequence homology with human CGRP-II.
1012 2649092 Antibodies specific for the pancreatic islet amyloid polypeptide associated with type 2 diabetes mellitus.
1013 2649092 Antibodies raised to a lysine solubilized peptide composed of residues 20-29 of the pancreatic islet amyloid polypeptide react selectively and specifically with this polypeptide and with islet amyloid deposits in Type 2 diabetes mellitus.
1014 2649092 These antibodies may prove useful in studies employing radioimmunoassay of body fluids and islet cell cultures in order to define if a pathogenic relationship exists between the islet amyloid polypeptide and Type 2 diabetes mellitus.
1015 2649092 Antibodies specific for the pancreatic islet amyloid polypeptide associated with type 2 diabetes mellitus.
1016 2649092 Antibodies raised to a lysine solubilized peptide composed of residues 20-29 of the pancreatic islet amyloid polypeptide react selectively and specifically with this polypeptide and with islet amyloid deposits in Type 2 diabetes mellitus.
1017 2649092 These antibodies may prove useful in studies employing radioimmunoassay of body fluids and islet cell cultures in order to define if a pathogenic relationship exists between the islet amyloid polypeptide and Type 2 diabetes mellitus.
1018 2649092 Antibodies specific for the pancreatic islet amyloid polypeptide associated with type 2 diabetes mellitus.
1019 2649092 Antibodies raised to a lysine solubilized peptide composed of residues 20-29 of the pancreatic islet amyloid polypeptide react selectively and specifically with this polypeptide and with islet amyloid deposits in Type 2 diabetes mellitus.
1020 2649092 These antibodies may prove useful in studies employing radioimmunoassay of body fluids and islet cell cultures in order to define if a pathogenic relationship exists between the islet amyloid polypeptide and Type 2 diabetes mellitus.
1021 2655598 Islet amyloid polypeptide inhibits glucose-stimulated insulin secretion from isolated rat pancreatic islets.
1022 2655598 Islet amyloid polypeptide has 37 amino acids and is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes mellitus.
1023 2655598 To determine whether the peptide is involved in the impaired insulin secretion in this type of diabetes mellitus, we synthesized islet amyloid polypeptide and its fragments and examined its effect on insulin secretion.
1024 2655598 Islet amyloid polypeptide inhibited the glucose-stimulated insulin secretion from isolated rat pancreatic islets, as calcitonin gene-related peptide did, but the fragments failed to inhibit the secretion.
1025 2655598 Thus, we propose that amyloid deposition may be an important factor in the impairment of insulin secretion in type 2 diabetes mellitus.
1026 2655598 Islet amyloid polypeptide inhibits glucose-stimulated insulin secretion from isolated rat pancreatic islets.
1027 2655598 Islet amyloid polypeptide has 37 amino acids and is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes mellitus.
1028 2655598 To determine whether the peptide is involved in the impaired insulin secretion in this type of diabetes mellitus, we synthesized islet amyloid polypeptide and its fragments and examined its effect on insulin secretion.
1029 2655598 Islet amyloid polypeptide inhibited the glucose-stimulated insulin secretion from isolated rat pancreatic islets, as calcitonin gene-related peptide did, but the fragments failed to inhibit the secretion.
1030 2655598 Thus, we propose that amyloid deposition may be an important factor in the impairment of insulin secretion in type 2 diabetes mellitus.
1031 2655598 Islet amyloid polypeptide inhibits glucose-stimulated insulin secretion from isolated rat pancreatic islets.
1032 2655598 Islet amyloid polypeptide has 37 amino acids and is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes mellitus.
1033 2655598 To determine whether the peptide is involved in the impaired insulin secretion in this type of diabetes mellitus, we synthesized islet amyloid polypeptide and its fragments and examined its effect on insulin secretion.
1034 2655598 Islet amyloid polypeptide inhibited the glucose-stimulated insulin secretion from isolated rat pancreatic islets, as calcitonin gene-related peptide did, but the fragments failed to inhibit the secretion.
1035 2655598 Thus, we propose that amyloid deposition may be an important factor in the impairment of insulin secretion in type 2 diabetes mellitus.
1036 2655598 Islet amyloid polypeptide inhibits glucose-stimulated insulin secretion from isolated rat pancreatic islets.
1037 2655598 Islet amyloid polypeptide has 37 amino acids and is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes mellitus.
1038 2655598 To determine whether the peptide is involved in the impaired insulin secretion in this type of diabetes mellitus, we synthesized islet amyloid polypeptide and its fragments and examined its effect on insulin secretion.
1039 2655598 Islet amyloid polypeptide inhibited the glucose-stimulated insulin secretion from isolated rat pancreatic islets, as calcitonin gene-related peptide did, but the fragments failed to inhibit the secretion.
1040 2655598 Thus, we propose that amyloid deposition may be an important factor in the impairment of insulin secretion in type 2 diabetes mellitus.
1041 2655598 Islet amyloid polypeptide inhibits glucose-stimulated insulin secretion from isolated rat pancreatic islets.
1042 2655598 Islet amyloid polypeptide has 37 amino acids and is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes mellitus.
1043 2655598 To determine whether the peptide is involved in the impaired insulin secretion in this type of diabetes mellitus, we synthesized islet amyloid polypeptide and its fragments and examined its effect on insulin secretion.
1044 2655598 Islet amyloid polypeptide inhibited the glucose-stimulated insulin secretion from isolated rat pancreatic islets, as calcitonin gene-related peptide did, but the fragments failed to inhibit the secretion.
1045 2655598 Thus, we propose that amyloid deposition may be an important factor in the impairment of insulin secretion in type 2 diabetes mellitus.
1046 2659052 In the eight years that have elapsed since the first implantation of an insulin pump in a human subject, insulin delivered by implantable pump has been shown to improve metabolic control while reducing total and LDL cholesterol, serum amyloid A, and serum anti-insulin antibody titres.
1047 2666169 Sequence divergence in a specific region of islet amyloid polypeptide (IAPP) explains differences in islet amyloid formation between species.
1048 2666169 Amyloid deposits in the islets of Langerhans occur in association with type 2 diabetes mellitus (DM) in humans and cats and consist of a 37-amino-acid polypeptide known as islet amyloid polypeptide (IAPP).
1049 2666169 Sequence divergence in a specific region of islet amyloid polypeptide (IAPP) explains differences in islet amyloid formation between species.
1050 2666169 Amyloid deposits in the islets of Langerhans occur in association with type 2 diabetes mellitus (DM) in humans and cats and consist of a 37-amino-acid polypeptide known as islet amyloid polypeptide (IAPP).
1051 2668761 Islet amyloid, islet-amyloid polypeptide, and diabetes mellitus.
1052 2668761 Although the physiologic function of IAPP and its role in the pathogenesis of Type II diabetes mellitus are just beginning to be unraveled, IAPP may play an important part in the development of this most common form of diabetes mellitus by opposing the action of insulin in peripheral tissues.
1053 2668761 Substantial evidence indicates that the propensity of IAPP to polymerize and form extracellular amyloid deposits in only certain species (e.g., humans, cats, and raccoons) is directly associated with an intrinsically amyloidogenic part of the molecule--i.e., positions 20 through 29 of IAPP.
1054 2668761 Although increased production of IAPP may initially cause insulin resistance, prolonged overproduction of IAPP may ultimately impair insulin secretion by leading to the progressive deposition of insoluble islet amyloid, a finding apparent in most subjects with overt diabetes.
1055 2668761 Islet amyloid, islet-amyloid polypeptide, and diabetes mellitus.
1056 2668761 Although the physiologic function of IAPP and its role in the pathogenesis of Type II diabetes mellitus are just beginning to be unraveled, IAPP may play an important part in the development of this most common form of diabetes mellitus by opposing the action of insulin in peripheral tissues.
1057 2668761 Substantial evidence indicates that the propensity of IAPP to polymerize and form extracellular amyloid deposits in only certain species (e.g., humans, cats, and raccoons) is directly associated with an intrinsically amyloidogenic part of the molecule--i.e., positions 20 through 29 of IAPP.
1058 2668761 Although increased production of IAPP may initially cause insulin resistance, prolonged overproduction of IAPP may ultimately impair insulin secretion by leading to the progressive deposition of insoluble islet amyloid, a finding apparent in most subjects with overt diabetes.
1059 2668761 Islet amyloid, islet-amyloid polypeptide, and diabetes mellitus.
1060 2668761 Although the physiologic function of IAPP and its role in the pathogenesis of Type II diabetes mellitus are just beginning to be unraveled, IAPP may play an important part in the development of this most common form of diabetes mellitus by opposing the action of insulin in peripheral tissues.
1061 2668761 Substantial evidence indicates that the propensity of IAPP to polymerize and form extracellular amyloid deposits in only certain species (e.g., humans, cats, and raccoons) is directly associated with an intrinsically amyloidogenic part of the molecule--i.e., positions 20 through 29 of IAPP.
1062 2668761 Although increased production of IAPP may initially cause insulin resistance, prolonged overproduction of IAPP may ultimately impair insulin secretion by leading to the progressive deposition of insoluble islet amyloid, a finding apparent in most subjects with overt diabetes.
1063 2670595 Islet amyloid polypeptide (IAPP):cDNA cloning and identification of an amyloidogenic region associated with the species-specific occurrence of age-related diabetes mellitus.
1064 2670595 We have cloned and sequenced a human islet amyloid polypeptide (IAPP) cDNA.
1065 2670595 Evolutionary conserved proteolytic processing sites indicate that similar proteases are involved in the maturation of IAPP and CGRP and that the IAPP amyloid polypeptide is identical to the normal proteolytic product of the IAPP precursor.
1066 2670595 Islet amyloid polypeptide (IAPP):cDNA cloning and identification of an amyloidogenic region associated with the species-specific occurrence of age-related diabetes mellitus.
1067 2670595 We have cloned and sequenced a human islet amyloid polypeptide (IAPP) cDNA.
1068 2670595 Evolutionary conserved proteolytic processing sites indicate that similar proteases are involved in the maturation of IAPP and CGRP and that the IAPP amyloid polypeptide is identical to the normal proteolytic product of the IAPP precursor.
1069 2670595 Islet amyloid polypeptide (IAPP):cDNA cloning and identification of an amyloidogenic region associated with the species-specific occurrence of age-related diabetes mellitus.
1070 2670595 We have cloned and sequenced a human islet amyloid polypeptide (IAPP) cDNA.
1071 2670595 Evolutionary conserved proteolytic processing sites indicate that similar proteases are involved in the maturation of IAPP and CGRP and that the IAPP amyloid polypeptide is identical to the normal proteolytic product of the IAPP precursor.
1072 2675614 Impaired glucose tolerance is associated with increased islet amyloid polypeptide (IAPP) immunoreactivity in pancreatic beta cells.
1073 2675614 Adult cats determined by clinical laboratory evaluations to be normal, impaired glucose tolerant, or overtly diabetic were used to explore prospectively the relationships among pancreatic beta cell islet amyloid polypeptide (IAPP) immunoreactivity, islet amyloid (IA) deposition, and diabetogenesis.
1074 2675614 Impaired glucose tolerance is associated with increased islet amyloid polypeptide (IAPP) immunoreactivity in pancreatic beta cells.
1075 2675614 Adult cats determined by clinical laboratory evaluations to be normal, impaired glucose tolerant, or overtly diabetic were used to explore prospectively the relationships among pancreatic beta cell islet amyloid polypeptide (IAPP) immunoreactivity, islet amyloid (IA) deposition, and diabetogenesis.
1076 2679554 Establishment of radioimmunoassay for human islet amyloid polypeptide and its tissue content and plasma concentration.
1077 2679554 Using a synthetic C- terminal tetradecapeptide of human islet amyloid polypeptide (IAPP), we prepared an antiserum for human IAPP [24-37] and established a highly sensitive radioimmunoassay (RIA) for human IAPP.
1078 2679554 Establishment of radioimmunoassay for human islet amyloid polypeptide and its tissue content and plasma concentration.
1079 2679554 Using a synthetic C- terminal tetradecapeptide of human islet amyloid polypeptide (IAPP), we prepared an antiserum for human IAPP [24-37] and established a highly sensitive radioimmunoassay (RIA) for human IAPP.
1080 2689229 Secretion of islet amyloid polypeptide in response to glucose.
1081 2689229 The content of islet amyloid polypeptide (IAPP) in isolated rat pancreatic islets was determined by a radioimmunoassay.
1082 2689229 Secretion of islet amyloid polypeptide in response to glucose.
1083 2689229 The content of islet amyloid polypeptide (IAPP) in isolated rat pancreatic islets was determined by a radioimmunoassay.
1084 2690958 Amylin and the amylin gene: structure, function and relationship to islet amyloid and to diabetes mellitus.
1085 2690958 Amylin, the major peptide component of the islet amyloid commonly found in the pancreases of patients with type 2 (non-insulin-dependent) diabetes mellitus (NIDDM), is a recently discovered islet polypeptide.
1086 2690958 Amylin is probably generated by proteolytic processing similar to that for proinsulin and other islet prohormones.
1087 2690958 Amylin is a potent modulator of glycogen synthesis and glucose uptake in skeletal muscle, and is capable of inducing an insulin-resistant state in this tissue in vitro, and perhaps also in the liver in vivo.
1088 2690958 Following the beta-cell destruction which occurs in type 1 (insulin-dependent) diabetes mellitus (IDDM), it is probable that amylin secretion disappears in addition to that of insulin.
1089 2690958 As patients with insulin-treated IDDM frequently experience problems with hypoglycaemia, and as amylin acts to modulate the action of insulin in various tissues, it is possible that amylin deficiency may contribute to morbidity in insulin-treated IDDM, perhaps through the loss of a natural damping mechanism which guards against hypoglycaemia under conditions of normal physiology.
1090 2690958 Amylin and the amylin gene: structure, function and relationship to islet amyloid and to diabetes mellitus.
1091 2690958 Amylin, the major peptide component of the islet amyloid commonly found in the pancreases of patients with type 2 (non-insulin-dependent) diabetes mellitus (NIDDM), is a recently discovered islet polypeptide.
1092 2690958 Amylin is probably generated by proteolytic processing similar to that for proinsulin and other islet prohormones.
1093 2690958 Amylin is a potent modulator of glycogen synthesis and glucose uptake in skeletal muscle, and is capable of inducing an insulin-resistant state in this tissue in vitro, and perhaps also in the liver in vivo.
1094 2690958 Following the beta-cell destruction which occurs in type 1 (insulin-dependent) diabetes mellitus (IDDM), it is probable that amylin secretion disappears in addition to that of insulin.
1095 2690958 As patients with insulin-treated IDDM frequently experience problems with hypoglycaemia, and as amylin acts to modulate the action of insulin in various tissues, it is possible that amylin deficiency may contribute to morbidity in insulin-treated IDDM, perhaps through the loss of a natural damping mechanism which guards against hypoglycaemia under conditions of normal physiology.
1096 2691219 Islet amyloid polypeptide (IAPP) and pro-IAPP immunoreactivity in human islets of Langerhans.
1097 2691219 Islet amyloid polypeptide (IAPP) is a 37-amino-acid putative hormone which is expressed by islet B-cells and most probably is co-released with insulin.
1098 2691219 Islet amyloid polypeptide (IAPP) and pro-IAPP immunoreactivity in human islets of Langerhans.
1099 2691219 Islet amyloid polypeptide (IAPP) is a 37-amino-acid putative hormone which is expressed by islet B-cells and most probably is co-released with insulin.
1100 2695369 This peptide, named islet amyloid polypeptide or amylin, is also present in normal islets.
1101 2695369 Because of its association with two apparently dissimilar disease states, we propose a hypothesis that encompasses the observations related to proinsulin and islet amyloid polypeptide and suggest they are manifestations of the same abnormality.
1102 2695369 We also suggest that in the presence of defective proinsulin processing and insulin release, as occurs in NIDDM, hyperglycemia stimulates amylin biosynthesis so that this peptide is deposited in increased quantities in the islet as amyloid.
1103 2695369 This peptide, named islet amyloid polypeptide or amylin, is also present in normal islets.
1104 2695369 Because of its association with two apparently dissimilar disease states, we propose a hypothesis that encompasses the observations related to proinsulin and islet amyloid polypeptide and suggest they are manifestations of the same abnormality.
1105 2695369 We also suggest that in the presence of defective proinsulin processing and insulin release, as occurs in NIDDM, hyperglycemia stimulates amylin biosynthesis so that this peptide is deposited in increased quantities in the islet as amyloid.
1106 2695369 This peptide, named islet amyloid polypeptide or amylin, is also present in normal islets.
1107 2695369 Because of its association with two apparently dissimilar disease states, we propose a hypothesis that encompasses the observations related to proinsulin and islet amyloid polypeptide and suggest they are manifestations of the same abnormality.
1108 2695369 We also suggest that in the presence of defective proinsulin processing and insulin release, as occurs in NIDDM, hyperglycemia stimulates amylin biosynthesis so that this peptide is deposited in increased quantities in the islet as amyloid.
1109 2884060 Pancreatic islet amyloid and elevated proinsulin secretion in familial maturity-onset diabetes.
1110 2884060 Elevated proinsulin levels in a patient with islet-amyloid is consistent with the hypothesis that amyloid may be derived from abnormal beta-cell secretion.
1111 2884060 Pancreatic islet amyloid and elevated proinsulin secretion in familial maturity-onset diabetes.
1112 2884060 Elevated proinsulin levels in a patient with islet-amyloid is consistent with the hypothesis that amyloid may be derived from abnormal beta-cell secretion.
1113 2887903 Islet amyloid polypeptide.
1114 3035556 We have purified a major protein--insulinoma or islet amyloid polypeptide (IAPP)--from human and cat islet amyloid and from amyloid of a human insulinoma.
1115 3050530 Amylin is a 37-amino-acid peptide which is a major component of islet amyloid and has structural similarity to human calcitonin gene-related peptide-2 (CGRP-2; ref. 8).
1116 3050530 We now report that human pancreatic amylin and rat CGRP-1 are potent inhibitors of both basal and insulin-stimulated rates of glycogen synthesis in stripped rat soleus muscle in vitro.
1117 3051005 Amylin found in amyloid deposits in human type 2 diabetes mellitus may be a hormone that regulates glycogen metabolism in skeletal muscle.
1118 3051005 Diabetes-associated peptide has recently been isolated and characterized from the amyloid of the islets of Langerhans in type 2 (non-insulin-dependent) diabetics, and immunoreactivity with antibodies to the peptide has been demonstrated in islet B cells of both normal and type 2 diabetic subjects.
1119 3051005 Therefore, amylin may be a factor in the etiology of the insulin resistance in type 2 diabetes mellitus, as both deposition of the peptide in islet amyloid and decreased rates of glucose uptake and glycogen synthesis in skeletal muscle are characteristic of this condition.
1120 3051005 Amylin found in amyloid deposits in human type 2 diabetes mellitus may be a hormone that regulates glycogen metabolism in skeletal muscle.
1121 3051005 Diabetes-associated peptide has recently been isolated and characterized from the amyloid of the islets of Langerhans in type 2 (non-insulin-dependent) diabetics, and immunoreactivity with antibodies to the peptide has been demonstrated in islet B cells of both normal and type 2 diabetic subjects.
1122 3051005 Therefore, amylin may be a factor in the etiology of the insulin resistance in type 2 diabetes mellitus, as both deposition of the peptide in islet amyloid and decreased rates of glucose uptake and glycogen synthesis in skeletal muscle are characteristic of this condition.
1123 3051005 Amylin found in amyloid deposits in human type 2 diabetes mellitus may be a hormone that regulates glycogen metabolism in skeletal muscle.
1124 3051005 Diabetes-associated peptide has recently been isolated and characterized from the amyloid of the islets of Langerhans in type 2 (non-insulin-dependent) diabetics, and immunoreactivity with antibodies to the peptide has been demonstrated in islet B cells of both normal and type 2 diabetic subjects.
1125 3051005 Therefore, amylin may be a factor in the etiology of the insulin resistance in type 2 diabetes mellitus, as both deposition of the peptide in islet amyloid and decreased rates of glucose uptake and glycogen synthesis in skeletal muscle are characteristic of this condition.
1126 3053705 We have identified three cDNA clones encoding islet amyloid polypeptide (IAPP) or diabetes-associated peptide (DAP) by oligonucleotide screening of a lambda gt10 human insulinoma cDNA library.
1127 3053705 These data indicate that this amyloid peptide is generated by proteolytic processing similar to that for proinsulin and other islet prohormones and also that the peptide may be carboxyamidated.
1128 3053705 We have identified three cDNA clones encoding islet amyloid polypeptide (IAPP) or diabetes-associated peptide (DAP) by oligonucleotide screening of a lambda gt10 human insulinoma cDNA library.
1129 3053705 These data indicate that this amyloid peptide is generated by proteolytic processing similar to that for proinsulin and other islet prohormones and also that the peptide may be carboxyamidated.
1130 3063263 The pathogenesis of maturity-onset diabetes mellitus: is there a link to islet amyloid polypeptide?
1131 3069282 Serum concentrations of amyloid A (SAA) and C-reactive protein (CRP) were measured in 122 diabetic patients treated by continuous insulin infusion, 40 patients receiving conventional injection therapy and in 28 healthy controls.
1132 3069282 SAA and CRP-values did not significantly differ between the diabetics, irrespective of the method of insulin substitution used, and the healthy controls.
1133 3069282 Elevated SAA-levels were either associated with raised CRP, indicating a non-specific acute phase reaction, or were markedly diminished or normalized in a six-month follow-up, in spite ongoing pump therapy.
1134 3069282 Increased SAA-concentrations did not correlate with sex or age of patients, diabetes duration, diabetes type, duration of pump treatment, route of insulin, insulin preparation, catheter material and pump model, indicating that pump treatment does not stimulate a specific amyloidogenic reaction.
1135 3073901 The impaired insulin secretion in Type 2 diabetes may be due to a decrease in B-cells and to disruption of the islet structure by amyloid.
1136 3276206 Immunolocalization of islet amyloid polypeptide (IAPP) in pancreatic beta cells by means of peroxidase-antiperoxidase (PAP) and protein A-gold techniques.
1137 3276206 A novel putative polypeptide hormone identified as islet amyloid polypeptide (IAPP) was recently purified from islet amyloid (IA) of diabetic humans and cats, and also from amyloid of a human insulinoma.
1138 3276206 In the present investigation, the authors utilized antisera to insulin, glucagon, somatostatin, pancreatic polypeptide, synthetic human CGRP, and a synthetic human IAPP (7-17) undecapeptide to immunohistochemically (PAP technique) document the presence of IAPP immunoreactive cells in the islets of the cat, dog, mouse, and rat, but not in the islets of the horse or calf.
1139 3276206 Immunolocalization of islet amyloid polypeptide (IAPP) in pancreatic beta cells by means of peroxidase-antiperoxidase (PAP) and protein A-gold techniques.
1140 3276206 A novel putative polypeptide hormone identified as islet amyloid polypeptide (IAPP) was recently purified from islet amyloid (IA) of diabetic humans and cats, and also from amyloid of a human insulinoma.
1141 3276206 In the present investigation, the authors utilized antisera to insulin, glucagon, somatostatin, pancreatic polypeptide, synthetic human CGRP, and a synthetic human IAPP (7-17) undecapeptide to immunohistochemically (PAP technique) document the presence of IAPP immunoreactive cells in the islets of the cat, dog, mouse, and rat, but not in the islets of the horse or calf.
1142 3286343 A major amyloid fibril protein was extracted and, by means of its amino acid composition and amino acid sequence, it was shown to contain intact insulin molecules.
1143 3286343 Porcine insulin is the tenth protein and the first foreign protein to be chemically identified in human amyloid fibrils.
1144 3286343 A major amyloid fibril protein was extracted and, by means of its amino acid composition and amino acid sequence, it was shown to contain intact insulin molecules.
1145 3286343 Porcine insulin is the tenth protein and the first foreign protein to be chemically identified in human amyloid fibrils.
1146 3296768 It was shown recently that amyloid purified from an insulinoma was composed mainly of a novel polypeptide (insulinoma amyloid polypeptide, IAPP), which had partial identity with the neuropeptide calcitonin gene-related peptide (CGRP).
1147 3328723 Islet amyloid polypeptide-like immunoreactivity in the islet B cells of type 2 (non-insulin-dependent) diabetic and non-diabetic individuals.
1148 3328723 A novel peptide, islet amyloid polypeptide (IAPP), with structural resemblance to calcitonin gene-related peptide has recently been purified from amyloid deposits in an insulinoma and from islets of Langerhans.
1149 3328723 Islet amyloid polypeptide-like immunoreactivity in the islet B cells of type 2 (non-insulin-dependent) diabetic and non-diabetic individuals.
1150 3328723 A novel peptide, islet amyloid polypeptide (IAPP), with structural resemblance to calcitonin gene-related peptide has recently been purified from amyloid deposits in an insulinoma and from islets of Langerhans.
1151 3512207 C-reactive protein (CRP), the classical acute-phase reactant, and serum amyloid A protein (SAA), the putative precursor of AA-type amyloid fibrils, were measured in 62 diabetic patients.
1152 3512207 CRP and SAA levels were similar in 18 patients on continuous subcutaneous insulin infusion (CSII), 27 patients treated by conventional insulin therapy (CIT), nine treated by diet only, and eight treated by diet and oral hypoglycemic agents, and were almost entirely within the normal range.
1153 3522329 As nondiabetic monkeys with 0 to 3% islet amyloid progressed up to 20 to 40% amyloid, the insulin secretion and glucose clearance were both decreased (p less than or equal to 0.01), and the glucose and glucagon levels increased (p = 0.05).
1154 3535798 Deposition of amyloid is the most constantly present alteration in the islets of Langerhans in type 2 diabetes mellitus and is also quite common in insulin-producing tumors of the pancreas and it is very likely that these two amyloids are identical.
1155 3535798 We have isolated amyloid fibrils from an insulin-secreting human tumour and purified the fibrillar protein.
1156 3535798 Deposition of amyloid is the most constantly present alteration in the islets of Langerhans in type 2 diabetes mellitus and is also quite common in insulin-producing tumors of the pancreas and it is very likely that these two amyloids are identical.
1157 3535798 We have isolated amyloid fibrils from an insulin-secreting human tumour and purified the fibrillar protein.
1158 3890345 The high dose intravenous glucose tolerance test and concurrent immunoreactive serum insulin and glucagon levels were measured and the results related to the presence or absence of pancreatic insular amyloid in 16 cats, seven of which were known to be diabetic.
1159 3890345 Three diabetic cats with marked insular amyloid deposits had glucose disappearance T1/2 and K (coefficient) values, serum insulin levels, serum glucagon levels, and insulin/glucose ratios which were not significantly different from the other three diabetic cats with slight to moderate insular amyloidosis.
1160 3890345 The high dose intravenous glucose tolerance test and concurrent immunoreactive serum insulin and glucagon levels were measured and the results related to the presence or absence of pancreatic insular amyloid in 16 cats, seven of which were known to be diabetic.
1161 3890345 Three diabetic cats with marked insular amyloid deposits had glucose disappearance T1/2 and K (coefficient) values, serum insulin levels, serum glucagon levels, and insulin/glucose ratios which were not significantly different from the other three diabetic cats with slight to moderate insular amyloidosis.
1162 3901495 Feline insular amyloid: immunohistochemical and immunochemical evidence that the amyloid is insulin-related.
1163 3901495 Utilizing islet amyloid-laden pancreatic tissues from six diabetic cats, we demonstrated substantial immunoreactivity (peroxidase-antiperoxidase technique) of the islet amyloid with antiserum to a B chain-rich insulin fraction, but no reactivity with antisera to insulin, glucagon, or somatostatin.
1164 3901495 These results provide important additional evidence that an insulin-related protein is involved in the formation of islet amyloid.
1165 3901495 Feline insular amyloid: immunohistochemical and immunochemical evidence that the amyloid is insulin-related.
1166 3901495 Utilizing islet amyloid-laden pancreatic tissues from six diabetic cats, we demonstrated substantial immunoreactivity (peroxidase-antiperoxidase technique) of the islet amyloid with antiserum to a B chain-rich insulin fraction, but no reactivity with antisera to insulin, glucagon, or somatostatin.
1167 3901495 These results provide important additional evidence that an insulin-related protein is involved in the formation of islet amyloid.
1168 3901495 Feline insular amyloid: immunohistochemical and immunochemical evidence that the amyloid is insulin-related.
1169 3901495 Utilizing islet amyloid-laden pancreatic tissues from six diabetic cats, we demonstrated substantial immunoreactivity (peroxidase-antiperoxidase technique) of the islet amyloid with antiserum to a B chain-rich insulin fraction, but no reactivity with antisera to insulin, glucagon, or somatostatin.
1170 3901495 These results provide important additional evidence that an insulin-related protein is involved in the formation of islet amyloid.
1171 3979691 Continuous subcutaneous insulin infusion does not induce a significant acute phase response of serum amyloid A protein.
1172 3979691 In a study of 23 matched pairs of Type 1 (insulin-dependent) diabetic patients receiving continuous subcutaneous insulin infusion or conventional insulin injection therapy respectively, there were no significant differences in serum levels of the acute phase proteins, serum amyloid A and C-reactive protein.
1173 3979691 These results do not support the suggestion that continuous subcutaneous insulin infusion stimulates serum amyloid A production or that it carries a risk of inducing reactive systemic amyloidosis.
1174 3979691 Continuous subcutaneous insulin infusion does not induce a significant acute phase response of serum amyloid A protein.
1175 3979691 In a study of 23 matched pairs of Type 1 (insulin-dependent) diabetic patients receiving continuous subcutaneous insulin infusion or conventional insulin injection therapy respectively, there were no significant differences in serum levels of the acute phase proteins, serum amyloid A and C-reactive protein.
1176 3979691 These results do not support the suggestion that continuous subcutaneous insulin infusion stimulates serum amyloid A production or that it carries a risk of inducing reactive systemic amyloidosis.
1177 3979691 Continuous subcutaneous insulin infusion does not induce a significant acute phase response of serum amyloid A protein.
1178 3979691 In a study of 23 matched pairs of Type 1 (insulin-dependent) diabetic patients receiving continuous subcutaneous insulin infusion or conventional insulin injection therapy respectively, there were no significant differences in serum levels of the acute phase proteins, serum amyloid A and C-reactive protein.
1179 3979691 These results do not support the suggestion that continuous subcutaneous insulin infusion stimulates serum amyloid A production or that it carries a risk of inducing reactive systemic amyloidosis.
1180 6142148 Association of insulin pump therapy with raised serum amyloid A in type I diabetes mellitus.
1181 6142148 Serum concentrations of serum amyloid A protein, the high-density-lipoprotein-associated tissue amyloid A precursor, were determined in 29 diabetic patients receiving insulin by subcutaneous injection and in 50 receiving subcutaneous infusion pump therapy.
1182 6142148 Insulin delivered by continuous subcutaneous pumps stimulated serum amyloid A production to levels nearly six times those in normal subjects, nearly twice as much as insulin given by subcutaneous injection. 85% of patients with serum amyloid A levels greater than or equal to 10(4) ng/ml were being treated with insulin pump therapy.
1183 6142148 The relation between insulin aggregation and amyloid A in diabetes was evaluated in 1 patient; treatment with syringe-aggregated insulin resulted in a nearly 300% increase in serum amyloid A levels.
1184 6142148 Association of insulin pump therapy with raised serum amyloid A in type I diabetes mellitus.
1185 6142148 Serum concentrations of serum amyloid A protein, the high-density-lipoprotein-associated tissue amyloid A precursor, were determined in 29 diabetic patients receiving insulin by subcutaneous injection and in 50 receiving subcutaneous infusion pump therapy.
1186 6142148 Insulin delivered by continuous subcutaneous pumps stimulated serum amyloid A production to levels nearly six times those in normal subjects, nearly twice as much as insulin given by subcutaneous injection. 85% of patients with serum amyloid A levels greater than or equal to 10(4) ng/ml were being treated with insulin pump therapy.
1187 6142148 The relation between insulin aggregation and amyloid A in diabetes was evaluated in 1 patient; treatment with syringe-aggregated insulin resulted in a nearly 300% increase in serum amyloid A levels.
1188 6142148 Association of insulin pump therapy with raised serum amyloid A in type I diabetes mellitus.
1189 6142148 Serum concentrations of serum amyloid A protein, the high-density-lipoprotein-associated tissue amyloid A precursor, were determined in 29 diabetic patients receiving insulin by subcutaneous injection and in 50 receiving subcutaneous infusion pump therapy.
1190 6142148 Insulin delivered by continuous subcutaneous pumps stimulated serum amyloid A production to levels nearly six times those in normal subjects, nearly twice as much as insulin given by subcutaneous injection. 85% of patients with serum amyloid A levels greater than or equal to 10(4) ng/ml were being treated with insulin pump therapy.
1191 6142148 The relation between insulin aggregation and amyloid A in diabetes was evaluated in 1 patient; treatment with syringe-aggregated insulin resulted in a nearly 300% increase in serum amyloid A levels.
1192 6142148 Association of insulin pump therapy with raised serum amyloid A in type I diabetes mellitus.
1193 6142148 Serum concentrations of serum amyloid A protein, the high-density-lipoprotein-associated tissue amyloid A precursor, were determined in 29 diabetic patients receiving insulin by subcutaneous injection and in 50 receiving subcutaneous infusion pump therapy.
1194 6142148 Insulin delivered by continuous subcutaneous pumps stimulated serum amyloid A production to levels nearly six times those in normal subjects, nearly twice as much as insulin given by subcutaneous injection. 85% of patients with serum amyloid A levels greater than or equal to 10(4) ng/ml were being treated with insulin pump therapy.
1195 6142148 The relation between insulin aggregation and amyloid A in diabetes was evaluated in 1 patient; treatment with syringe-aggregated insulin resulted in a nearly 300% increase in serum amyloid A levels.
1196 6143168 Insulin pump therapy and serum amyloid A.
1197 6159507 Serum amyloid P-component (SAP) is a normal plasma protein and is a constituent of normal human glomerular basement membrane.
1198 6347781 Islet amyloid in Type 2 (non-insulin-dependent) diabetes is related to insulin.
1199 6347781 In the present study we show by immunohistochemistry that the amyloid reacts with an antiserum against insulin B chain.
1200 6347781 The results indicate that islet amyloid contains insulin B chain and that the amyloid is a product of the islet B cells.
1201 6347781 Islet amyloid in Type 2 (non-insulin-dependent) diabetes is related to insulin.
1202 6347781 In the present study we show by immunohistochemistry that the amyloid reacts with an antiserum against insulin B chain.
1203 6347781 The results indicate that islet amyloid contains insulin B chain and that the amyloid is a product of the islet B cells.
1204 6347781 Islet amyloid in Type 2 (non-insulin-dependent) diabetes is related to insulin.
1205 6347781 In the present study we show by immunohistochemistry that the amyloid reacts with an antiserum against insulin B chain.
1206 6347781 The results indicate that islet amyloid contains insulin B chain and that the amyloid is a product of the islet B cells.
1207 6360758 Massive deposits of amyloid were observed in animals receiving as little as 17 mg of insulin over a time span of 52 days.
1208 6360758 In those animals with hepatic amyloid, marked hepatomegaly was present (i.e., 1200 +/- 250, X +/- SD, versus 300 +/- 25 g for normal animals) and preterminal serum alkaline phosphatase levels were markedly elevated (434 +/- 285 versus 30 +/- 14 IU/L for animals without hepatic amyloid).
1209 6360758 The magnitude of the hepatic amyloid deposits precludes the possibility that they represent insulin aggregates or insulin-derived products per se.
1210 6360758 No evidence of amyloid was present in any of the tissue biopsy specimens obtained prior to insulin infusion.
1211 6360758 It is of particular interest that the affinity of the amyloid deposits for Congo red stain was totally abolished by prior permanganate treatment, suggesting that the amyloid was derived from serum amyloid A protein rather than from immunoglobulin light chains or insulin aggregates per se.
1212 6360758 Massive deposits of amyloid were observed in animals receiving as little as 17 mg of insulin over a time span of 52 days.
1213 6360758 In those animals with hepatic amyloid, marked hepatomegaly was present (i.e., 1200 +/- 250, X +/- SD, versus 300 +/- 25 g for normal animals) and preterminal serum alkaline phosphatase levels were markedly elevated (434 +/- 285 versus 30 +/- 14 IU/L for animals without hepatic amyloid).
1214 6360758 The magnitude of the hepatic amyloid deposits precludes the possibility that they represent insulin aggregates or insulin-derived products per se.
1215 6360758 No evidence of amyloid was present in any of the tissue biopsy specimens obtained prior to insulin infusion.
1216 6360758 It is of particular interest that the affinity of the amyloid deposits for Congo red stain was totally abolished by prior permanganate treatment, suggesting that the amyloid was derived from serum amyloid A protein rather than from immunoglobulin light chains or insulin aggregates per se.
1217 6360758 Massive deposits of amyloid were observed in animals receiving as little as 17 mg of insulin over a time span of 52 days.
1218 6360758 In those animals with hepatic amyloid, marked hepatomegaly was present (i.e., 1200 +/- 250, X +/- SD, versus 300 +/- 25 g for normal animals) and preterminal serum alkaline phosphatase levels were markedly elevated (434 +/- 285 versus 30 +/- 14 IU/L for animals without hepatic amyloid).
1219 6360758 The magnitude of the hepatic amyloid deposits precludes the possibility that they represent insulin aggregates or insulin-derived products per se.
1220 6360758 No evidence of amyloid was present in any of the tissue biopsy specimens obtained prior to insulin infusion.
1221 6360758 It is of particular interest that the affinity of the amyloid deposits for Congo red stain was totally abolished by prior permanganate treatment, suggesting that the amyloid was derived from serum amyloid A protein rather than from immunoglobulin light chains or insulin aggregates per se.
1222 6360758 Massive deposits of amyloid were observed in animals receiving as little as 17 mg of insulin over a time span of 52 days.
1223 6360758 In those animals with hepatic amyloid, marked hepatomegaly was present (i.e., 1200 +/- 250, X +/- SD, versus 300 +/- 25 g for normal animals) and preterminal serum alkaline phosphatase levels were markedly elevated (434 +/- 285 versus 30 +/- 14 IU/L for animals without hepatic amyloid).
1224 6360758 The magnitude of the hepatic amyloid deposits precludes the possibility that they represent insulin aggregates or insulin-derived products per se.
1225 6360758 No evidence of amyloid was present in any of the tissue biopsy specimens obtained prior to insulin infusion.
1226 6360758 It is of particular interest that the affinity of the amyloid deposits for Congo red stain was totally abolished by prior permanganate treatment, suggesting that the amyloid was derived from serum amyloid A protein rather than from immunoglobulin light chains or insulin aggregates per se.
1227 6360758 Massive deposits of amyloid were observed in animals receiving as little as 17 mg of insulin over a time span of 52 days.
1228 6360758 In those animals with hepatic amyloid, marked hepatomegaly was present (i.e., 1200 +/- 250, X +/- SD, versus 300 +/- 25 g for normal animals) and preterminal serum alkaline phosphatase levels were markedly elevated (434 +/- 285 versus 30 +/- 14 IU/L for animals without hepatic amyloid).
1229 6360758 The magnitude of the hepatic amyloid deposits precludes the possibility that they represent insulin aggregates or insulin-derived products per se.
1230 6360758 No evidence of amyloid was present in any of the tissue biopsy specimens obtained prior to insulin infusion.
1231 6360758 It is of particular interest that the affinity of the amyloid deposits for Congo red stain was totally abolished by prior permanganate treatment, suggesting that the amyloid was derived from serum amyloid A protein rather than from immunoglobulin light chains or insulin aggregates per se.
1232 6365738 The pancreases of 17 patients who had cystic fibrosis with and without diabetes mellitus were evaluated at autopsy by routine staining and immunohistochemical methods for insulin, glucagon, somatostatin, and pancreatic polypeptide.
1233 6365738 Young adult diabetic patients with cystic fibrosis have total loss of exocrine pancreas with fat replacement, lack of nesidioblastosis, a qualitative decrease in the number of islets, fibrosis of and amyloid deposits in islets, decreased numbers of insulin-containing cells in each islet, and atrophy of islet cells, probably resulting from progressive ischemia.
1234 6375393 Other plasma proteins of low isoelectric point were detected in basement membranes: albumin (pI 4.9), alpha-1-acid glycoprotein (pI 2.7), amyloid P (pI 3.9-4.8), and alpha-1-antitrypsin (pI 4.5).
1235 6391995 Quantitative morphometry of the pancreases of five 'maturity-onset' diabetic subjects has demonstrated more amyloid in islets of the head, body and tail (where it was found in a mean 29% of the islets occupying a mean 11% islet area) than in islets of the 'pancreatic-polypeptide-rich' lobule of the head (where amyloid was found in a mean of 3% of the islets occupying a mean of 0.7% islet area, both p less than 0.005).
1236 6391995 The non-uniform amyloid distribution may relate to the hormone content of the islet; the head and tail contained significantly more A, B and D-cells than the pancreatic-polypeptide-rich lobule in both non-diabetic subjects (n = 8) and diabetic patients (n = 5; p less than 0.005).
1237 6391995 This result is compatible with the previous suggestion that amyloid may be derived from insulin or its precursors.
1238 6391995 Quantitative morphometry of the pancreases of five 'maturity-onset' diabetic subjects has demonstrated more amyloid in islets of the head, body and tail (where it was found in a mean 29% of the islets occupying a mean 11% islet area) than in islets of the 'pancreatic-polypeptide-rich' lobule of the head (where amyloid was found in a mean of 3% of the islets occupying a mean of 0.7% islet area, both p less than 0.005).
1239 6391995 The non-uniform amyloid distribution may relate to the hormone content of the islet; the head and tail contained significantly more A, B and D-cells than the pancreatic-polypeptide-rich lobule in both non-diabetic subjects (n = 8) and diabetic patients (n = 5; p less than 0.005).
1240 6391995 This result is compatible with the previous suggestion that amyloid may be derived from insulin or its precursors.
1241 6391995 Quantitative morphometry of the pancreases of five 'maturity-onset' diabetic subjects has demonstrated more amyloid in islets of the head, body and tail (where it was found in a mean 29% of the islets occupying a mean 11% islet area) than in islets of the 'pancreatic-polypeptide-rich' lobule of the head (where amyloid was found in a mean of 3% of the islets occupying a mean of 0.7% islet area, both p less than 0.005).
1242 6391995 The non-uniform amyloid distribution may relate to the hormone content of the islet; the head and tail contained significantly more A, B and D-cells than the pancreatic-polypeptide-rich lobule in both non-diabetic subjects (n = 8) and diabetic patients (n = 5; p less than 0.005).
1243 6391995 This result is compatible with the previous suggestion that amyloid may be derived from insulin or its precursors.
1244 6395671 With gradual deterioration of cells and replacement by amyloid, secretion of insulin is impaired and concentrations of glucagon increase.
1245 6395671 Nondiabetic humans with sufficient beta cells to sustain adequate secretion of insulin, but with moderate amyloid infiltration, probably would be in a category equivalent to BD monkeys; since these people are not overtly hyperglycemic, they are not clinically recognizable as diabetic and would be classified retrospectively as nondiabetic.
1246 6395671 With gradual deterioration of cells and replacement by amyloid, secretion of insulin is impaired and concentrations of glucagon increase.
1247 6395671 Nondiabetic humans with sufficient beta cells to sustain adequate secretion of insulin, but with moderate amyloid infiltration, probably would be in a category equivalent to BD monkeys; since these people are not overtly hyperglycemic, they are not clinically recognizable as diabetic and would be classified retrospectively as nondiabetic.
1248 6745737 The stromal layer contained several irregular cells which were characterized by cytoplasmic vacuolization and collagen fiber separation by an amyloid-like, intercellular ground substance.
1249 6848400 Since elevated levels of serum amyloid A protein (SAA) and diminished amyloid fibril degrading activity (AFDA) are associated with amyloidosis, we measured SAA and AFDA in ten type I diabetics treated with continuous subcutaneous insulin infusion and in five conventionally treated patients.
1250 7028600 The low prevalence of amyloid seen in nondiabetics and the fact that all adult onset, insulin treated diabetics had islet amyloid indicate that a reaction to endogenous insulin may be the basis for the deposition of islet amyloid.
1251 7033114 Antiserum specific for human prealbumin (HPA) was studied by indirect immunofluorescence on tissue sections of cardiac ventricles containing senile cardiac amyloid.
1252 7033114 THe reaction of anti-HPA was completely blocked by purified human prealbumin but was not influenced by absorption with purified human albumin or proteins extracted from any amyloid types tested.
1253 7033114 These studies suggest that senile cardiac amyloid of the ASc1 type contains prealbumin or a protein antigenically closely related to this molecule.
1254 7033114 Antiserum specific for human prealbumin (HPA) was studied by indirect immunofluorescence on tissue sections of cardiac ventricles containing senile cardiac amyloid.
1255 7033114 THe reaction of anti-HPA was completely blocked by purified human prealbumin but was not influenced by absorption with purified human albumin or proteins extracted from any amyloid types tested.
1256 7033114 These studies suggest that senile cardiac amyloid of the ASc1 type contains prealbumin or a protein antigenically closely related to this molecule.
1257 7033114 Antiserum specific for human prealbumin (HPA) was studied by indirect immunofluorescence on tissue sections of cardiac ventricles containing senile cardiac amyloid.
1258 7033114 THe reaction of anti-HPA was completely blocked by purified human prealbumin but was not influenced by absorption with purified human albumin or proteins extracted from any amyloid types tested.
1259 7033114 These studies suggest that senile cardiac amyloid of the ASc1 type contains prealbumin or a protein antigenically closely related to this molecule.
1260 7472513 Islet amyloid polypeptide (amylin) is expressed in sensory neurons.
1261 7472513 Islet amyloid polypeptide (IAPP) or amylin is a hormone candidate predominantly expressed in insulin cells.
1262 7472513 In addition, IAPP-like immunoreactivity occurred in nerve cell bodies storing substance P and pituitary adenylate cyclase-activating polypeptide.
1263 7472513 Islet amyloid polypeptide (amylin) is expressed in sensory neurons.
1264 7472513 Islet amyloid polypeptide (IAPP) or amylin is a hormone candidate predominantly expressed in insulin cells.
1265 7472513 In addition, IAPP-like immunoreactivity occurred in nerve cell bodies storing substance P and pituitary adenylate cyclase-activating polypeptide.
1266 7487407 In statistical analysis, only two of the 25 diseases recorded were associated with interstitial amyloid: chronic obstructive pulmonary disease and non-insulin-dependent diabetes mellitus.
1267 7487407 In addition, non-insulin-dependent diabetes mellitus was accompanied with higher amounts of interstitial amyloid than with all other disorders (Wilcoxon; P < .03).
1268 7487407 In statistical analysis, only two of the 25 diseases recorded were associated with interstitial amyloid: chronic obstructive pulmonary disease and non-insulin-dependent diabetes mellitus.
1269 7487407 In addition, non-insulin-dependent diabetes mellitus was accompanied with higher amounts of interstitial amyloid than with all other disorders (Wilcoxon; P < .03).
1270 7489583 Spongiform encephalopathies are related to mutation and/or polymorphisms of the PRNP amyloid gene.
1271 7504270 Giant multilevel cation channels formed by Alzheimer disease amyloid beta-protein [A beta P-(1-40)] in bilayer membranes.
1272 7504270 We have recently shown that the Alzheimer disease 40-residue amyloid beta-protein [A beta P-(1-40)] can form cation-selective channels when incorporated into planar lipid bilayers by fusion of liposomes containing the peptide.
1273 7504270 Giant multilevel cation channels formed by Alzheimer disease amyloid beta-protein [A beta P-(1-40)] in bilayer membranes.
1274 7504270 We have recently shown that the Alzheimer disease 40-residue amyloid beta-protein [A beta P-(1-40)] can form cation-selective channels when incorporated into planar lipid bilayers by fusion of liposomes containing the peptide.
1275 7533336 We investigated the association of amyloid beta-protein precursor (APP) and platelet derived microparticles in 20 normal controls and 91 patients with various diseases causing a thrombotic tendency.
1276 7535207 Serum amyloid A protein in patients with non-insulin-dependent diabetes mellitus.
1277 7535207 We determined the serum amyloid A protein (SAA) levels in patients with non-insulin-dependent diabetes mellitus (NIDDM), and investigated the possible association between SAA and the complications of NIDDM.
1278 7535207 However, SAA levels in patients with NIDDM increased significantly, with increase of urinary albumin excretion (p = 0.027).
1279 7535207 Serum amyloid A protein in patients with non-insulin-dependent diabetes mellitus.
1280 7535207 We determined the serum amyloid A protein (SAA) levels in patients with non-insulin-dependent diabetes mellitus (NIDDM), and investigated the possible association between SAA and the complications of NIDDM.
1281 7535207 However, SAA levels in patients with NIDDM increased significantly, with increase of urinary albumin excretion (p = 0.027).
1282 7535678 Islet amyloid polypeptide and its N-terminal and C-terminal flanking peptides' immunoreactivity in islet amyloid of diabetic patients.
1283 7535678 We determined immunohistochemically whether the islet amyloid polypeptide (IAPP)/amylin precursor is one component of islet amyloid, using polyclonal antibodies specific for human IAPP8-17 and amino (N)-terminal and carboxy (C)-terminal flanking peptides.
1284 7535678 In six type 2 diabetic subjects and a subject with type A insulin resistance, islet amyloid deposits were reactive to anti-IAPP8-17 antibody, but not to anti-N-terminal and C-terminal flanking peptide antibodies.
1285 7535678 Islet amyloid polypeptide and its N-terminal and C-terminal flanking peptides' immunoreactivity in islet amyloid of diabetic patients.
1286 7535678 We determined immunohistochemically whether the islet amyloid polypeptide (IAPP)/amylin precursor is one component of islet amyloid, using polyclonal antibodies specific for human IAPP8-17 and amino (N)-terminal and carboxy (C)-terminal flanking peptides.
1287 7535678 In six type 2 diabetic subjects and a subject with type A insulin resistance, islet amyloid deposits were reactive to anti-IAPP8-17 antibody, but not to anti-N-terminal and C-terminal flanking peptide antibodies.
1288 7535678 Islet amyloid polypeptide and its N-terminal and C-terminal flanking peptides' immunoreactivity in islet amyloid of diabetic patients.
1289 7535678 We determined immunohistochemically whether the islet amyloid polypeptide (IAPP)/amylin precursor is one component of islet amyloid, using polyclonal antibodies specific for human IAPP8-17 and amino (N)-terminal and carboxy (C)-terminal flanking peptides.
1290 7535678 In six type 2 diabetic subjects and a subject with type A insulin resistance, islet amyloid deposits were reactive to anti-IAPP8-17 antibody, but not to anti-N-terminal and C-terminal flanking peptide antibodies.
1291 7578065 Effect of pH and insulin on fibrillogenesis of islet amyloid polypeptide in vitro.
1292 7594773 Islet amyloid polypeptide (IAPP or amylin) is the main component of pancreatic islet amyloid found in the vast majority of patients with noninsulin-dependent (Type-2) diabetes mellitus (NIDDM).
1293 7660530 Amylin has been postulated to be involved in the pathogenesis of feline diabetes mellitus both through its metabolic effects, which include inhibition of insulin secretion and induction of insulin resistance, and via progressive amyloid deposition and beta cell degeneration.
1294 7660530 The gastrointestinal hormone glucagon-like peptide-1 may also prove useful in treating diabetic cats, because of its stimulatory effect on insulin secretion and synthesis, and the absence of significant hypoglycemic effect.
1295 7665954 [Biochemical studies of amyloidogenesis in two different types of amyloidoses--amyloid transthyretin variant in familial amyloidotic polyneuropathy and islet amyloid polypeptide in non-insulin-dependent diabetes mellitus].
1296 7677175 Human islet amyloid polypeptide expression in COS-1 cells.
1297 7677175 Non-insulin-dependent diabetes mellitus is characterized by concurrent loss of beta-cells and deposition of islet amyloid derived from islet amyloid polypeptide (IAPP).
1298 7677175 We have previously demonstrated that IAPP-derived amyloid forms intracellularly in humans with chronic excess insulin expression (eg, insulinoma and insulin receptor antibody-induced insulin resistance).
1299 7677175 Thus, overexpression of human IAPP can result in intracellular amyloid formation that is associated with cell death, suggesting that intracellular amyloid may play a role in beta-cell loss in non-insulin-dependent diabetes mellitus.
1300 7677175 Human islet amyloid polypeptide expression in COS-1 cells.
1301 7677175 Non-insulin-dependent diabetes mellitus is characterized by concurrent loss of beta-cells and deposition of islet amyloid derived from islet amyloid polypeptide (IAPP).
1302 7677175 We have previously demonstrated that IAPP-derived amyloid forms intracellularly in humans with chronic excess insulin expression (eg, insulinoma and insulin receptor antibody-induced insulin resistance).
1303 7677175 Thus, overexpression of human IAPP can result in intracellular amyloid formation that is associated with cell death, suggesting that intracellular amyloid may play a role in beta-cell loss in non-insulin-dependent diabetes mellitus.
1304 7677175 Human islet amyloid polypeptide expression in COS-1 cells.
1305 7677175 Non-insulin-dependent diabetes mellitus is characterized by concurrent loss of beta-cells and deposition of islet amyloid derived from islet amyloid polypeptide (IAPP).
1306 7677175 We have previously demonstrated that IAPP-derived amyloid forms intracellularly in humans with chronic excess insulin expression (eg, insulinoma and insulin receptor antibody-induced insulin resistance).
1307 7677175 Thus, overexpression of human IAPP can result in intracellular amyloid formation that is associated with cell death, suggesting that intracellular amyloid may play a role in beta-cell loss in non-insulin-dependent diabetes mellitus.
1308 7677175 Human islet amyloid polypeptide expression in COS-1 cells.
1309 7677175 Non-insulin-dependent diabetes mellitus is characterized by concurrent loss of beta-cells and deposition of islet amyloid derived from islet amyloid polypeptide (IAPP).
1310 7677175 We have previously demonstrated that IAPP-derived amyloid forms intracellularly in humans with chronic excess insulin expression (eg, insulinoma and insulin receptor antibody-induced insulin resistance).
1311 7677175 Thus, overexpression of human IAPP can result in intracellular amyloid formation that is associated with cell death, suggesting that intracellular amyloid may play a role in beta-cell loss in non-insulin-dependent diabetes mellitus.
1312 7705017 Islet amyloid polypeptide: does it play a pathophysiological role in the development of diabetes?
1313 7705017 The potential exists for the development of amylin antagonists as pharmacological agents to enhance insulin secretion in NIDDM but antagonism of systematic CGRP would need to be avoided.
1314 7711888 Formation of islet amyloid fibrils in beta-secretory granules of transgenic mice expressing human islet amyloid polypeptide/amylin.
1315 7711888 To investigate the relationship between human islet amyloid polypeptide (IAPP)/amylin expression and islet amyloid deposits in the pathogenesis of human non-insulin-dependent diabetes mellitus (NIDDM), we developed transgenic mice using a human IAPP cDNA connected to an insulin promoter.
1316 7711888 Formation of islet amyloid fibrils in beta-secretory granules of transgenic mice expressing human islet amyloid polypeptide/amylin.
1317 7711888 To investigate the relationship between human islet amyloid polypeptide (IAPP)/amylin expression and islet amyloid deposits in the pathogenesis of human non-insulin-dependent diabetes mellitus (NIDDM), we developed transgenic mice using a human IAPP cDNA connected to an insulin promoter.
1318 7738722 Islet amyloid polypeptide (IAPP) is the main proteinaceous component of pancreatic islet amyloid, which is a characteristic feature of type 2 diabetes.
1319 7753801 Serum amyloid P component prevents proteolysis of the amyloid fibrils of Alzheimer disease and systemic amyloidosis.
1320 7753801 Serum amyloid P component (SAP) binds to all types of amyloid fibrils and is a universal constituent of amyloid deposits, including the plaques, amorphous amyloid beta protein deposits and neurofibrillary tangles of Alzheimer disease [Coria, F., Castano, E., Prelli, F., Larrondo-Lillo, M., van Duinen, S., Shelanski, M.
1321 7753801 Here we show that SAP prevents proteolysis of the amyloid fibrils of Alzheimer disease, of systemic amyloid A amyloidosis and of systemic monoclonal light chain amyloidosis and may thereby contribute to their persistence in vivo.
1322 7753801 Interference with binding of SAP to amyloid fibrils in vivo is thus an attractive therapeutic objective, achievement of which should promote regression of the deposits.
1323 7753801 Serum amyloid P component prevents proteolysis of the amyloid fibrils of Alzheimer disease and systemic amyloidosis.
1324 7753801 Serum amyloid P component (SAP) binds to all types of amyloid fibrils and is a universal constituent of amyloid deposits, including the plaques, amorphous amyloid beta protein deposits and neurofibrillary tangles of Alzheimer disease [Coria, F., Castano, E., Prelli, F., Larrondo-Lillo, M., van Duinen, S., Shelanski, M.
1325 7753801 Here we show that SAP prevents proteolysis of the amyloid fibrils of Alzheimer disease, of systemic amyloid A amyloidosis and of systemic monoclonal light chain amyloidosis and may thereby contribute to their persistence in vivo.
1326 7753801 Interference with binding of SAP to amyloid fibrils in vivo is thus an attractive therapeutic objective, achievement of which should promote regression of the deposits.
1327 7753801 Serum amyloid P component prevents proteolysis of the amyloid fibrils of Alzheimer disease and systemic amyloidosis.
1328 7753801 Serum amyloid P component (SAP) binds to all types of amyloid fibrils and is a universal constituent of amyloid deposits, including the plaques, amorphous amyloid beta protein deposits and neurofibrillary tangles of Alzheimer disease [Coria, F., Castano, E., Prelli, F., Larrondo-Lillo, M., van Duinen, S., Shelanski, M.
1329 7753801 Here we show that SAP prevents proteolysis of the amyloid fibrils of Alzheimer disease, of systemic amyloid A amyloidosis and of systemic monoclonal light chain amyloidosis and may thereby contribute to their persistence in vivo.
1330 7753801 Interference with binding of SAP to amyloid fibrils in vivo is thus an attractive therapeutic objective, achievement of which should promote regression of the deposits.
1331 7753801 Serum amyloid P component prevents proteolysis of the amyloid fibrils of Alzheimer disease and systemic amyloidosis.
1332 7753801 Serum amyloid P component (SAP) binds to all types of amyloid fibrils and is a universal constituent of amyloid deposits, including the plaques, amorphous amyloid beta protein deposits and neurofibrillary tangles of Alzheimer disease [Coria, F., Castano, E., Prelli, F., Larrondo-Lillo, M., van Duinen, S., Shelanski, M.
1333 7753801 Here we show that SAP prevents proteolysis of the amyloid fibrils of Alzheimer disease, of systemic amyloid A amyloidosis and of systemic monoclonal light chain amyloidosis and may thereby contribute to their persistence in vivo.
1334 7753801 Interference with binding of SAP to amyloid fibrils in vivo is thus an attractive therapeutic objective, achievement of which should promote regression of the deposits.
1335 7771063 Assignment of islet amyloid polypeptide (IAPP) gene to feline chromosome B4 using the polymerase chain reaction technique on feline-rodent hybrid cell lines.
1336 7771063 The most characteristic morphologic features of the pancreatic islets of human non-insulin-dependent diabetes mellitus (NIDDM, or type 2 diabetes mellitus) and of similar forms of diabetes in cats and macaques are the deposition of amyloid (islet amyloid) and the loss of beta cells.
1337 7771063 Islet amyloid is derived from islet amyloid polypeptide (IAPP), which is a normal secretory product of the beta cells.
1338 7771063 Assignment of islet amyloid polypeptide (IAPP) gene to feline chromosome B4 using the polymerase chain reaction technique on feline-rodent hybrid cell lines.
1339 7771063 The most characteristic morphologic features of the pancreatic islets of human non-insulin-dependent diabetes mellitus (NIDDM, or type 2 diabetes mellitus) and of similar forms of diabetes in cats and macaques are the deposition of amyloid (islet amyloid) and the loss of beta cells.
1340 7771063 Islet amyloid is derived from islet amyloid polypeptide (IAPP), which is a normal secretory product of the beta cells.
1341 7771063 Assignment of islet amyloid polypeptide (IAPP) gene to feline chromosome B4 using the polymerase chain reaction technique on feline-rodent hybrid cell lines.
1342 7771063 The most characteristic morphologic features of the pancreatic islets of human non-insulin-dependent diabetes mellitus (NIDDM, or type 2 diabetes mellitus) and of similar forms of diabetes in cats and macaques are the deposition of amyloid (islet amyloid) and the loss of beta cells.
1343 7771063 Islet amyloid is derived from islet amyloid polypeptide (IAPP), which is a normal secretory product of the beta cells.
1344 7781840 Amylin/islet amyloid polypeptide: biochemistry, physiology, patho-physiology.
1345 7781840 Amylin is packed in beta-cell granules and cosecreted with insulin in response to the same stimuli but, unlike other beta-cell products, it is produced from specific a gene on chromosome 12.
1346 7796979 Non-parallelism of islet amyloid polypeptide (amylin) and insulin gene expression in rats islets following dexamethasone treatment.
1347 7796979 Islet amyloid polypeptide (IAPP), a novel islet hormone candidate, has been reported to be over-expressed relative to insulin in rats following dexamethasone treatment.
1348 7796979 Non-parallelism of islet amyloid polypeptide (amylin) and insulin gene expression in rats islets following dexamethasone treatment.
1349 7796979 Islet amyloid polypeptide (IAPP), a novel islet hormone candidate, has been reported to be over-expressed relative to insulin in rats following dexamethasone treatment.
1350 7821732 The extent to which this loss of insulin secretion reflects a major predisposing factor in the aetiology of this type of diabetes or is secondary to glucose toxicity or amyloid accumulation remains to be determined.
1351 7831499 Chronic exposure of cultured rat pancreatic islets to elevated concentrations of islet amyloid polypeptide (IAPP) causes a decrease in islet DNA content and medium insulin accumulation.
1352 7831499 The biological action of islet amyloid polypeptide (IAPP) remains to be established, although a role for IAPP in causing beta-cell failure in diabetes has been proposed.
1353 7831499 Chronic exposure of cultured rat pancreatic islets to elevated concentrations of islet amyloid polypeptide (IAPP) causes a decrease in islet DNA content and medium insulin accumulation.
1354 7831499 The biological action of islet amyloid polypeptide (IAPP) remains to be established, although a role for IAPP in causing beta-cell failure in diabetes has been proposed.
1355 7868080 Intracerebral and cerebrovascular beta-protein amyloid deposits are a hallmark of the pathology of both sporadic and familial Alzheimer's disease, beta 2-microglobulin-derived amyloid is a common complication of long term haemodialysis, and islet amyloid polypeptide is the fibril protein in the universal islet amyloidosis of type II diabetes mellitus.
1356 7868080 New fibril proteins have lately been identified in hereditary amyloidosis, including variants of gelsolin, apolipoprotein AI, lysozyme and fibrinogen.
1357 7868080 The development of radiolabelled serum amyloid P component (SAP) scintigraphy has allowed amyloid to be diagnosed non-invasively in vivo for the first time, provided unique insight into the distribution and size of amyloid deposits, and yielded novel information on the natural history and the effects of treatment.
1358 7868080 Intracerebral and cerebrovascular beta-protein amyloid deposits are a hallmark of the pathology of both sporadic and familial Alzheimer's disease, beta 2-microglobulin-derived amyloid is a common complication of long term haemodialysis, and islet amyloid polypeptide is the fibril protein in the universal islet amyloidosis of type II diabetes mellitus.
1359 7868080 New fibril proteins have lately been identified in hereditary amyloidosis, including variants of gelsolin, apolipoprotein AI, lysozyme and fibrinogen.
1360 7868080 The development of radiolabelled serum amyloid P component (SAP) scintigraphy has allowed amyloid to be diagnosed non-invasively in vivo for the first time, provided unique insight into the distribution and size of amyloid deposits, and yielded novel information on the natural history and the effects of treatment.
1361 7904897 Islet amyloid polypeptide gene expression in the endocrine pancreas of the rat: a combined in situ hybridization and immunocytochemical study.
1362 7904897 The expression of the islet amyloid polypeptide (IAPP) gene within the endocrine pancreas and its correlation with insular neuroendocrine peptide localization were investigated in the rat.
1363 7904897 Islet amyloid polypeptide gene expression in the endocrine pancreas of the rat: a combined in situ hybridization and immunocytochemical study.
1364 7904897 The expression of the islet amyloid polypeptide (IAPP) gene within the endocrine pancreas and its correlation with insular neuroendocrine peptide localization were investigated in the rat.
1365 7929615 Amylin is a 37-amino acid peptide first isolated, purified, and characterized from the amyloid deposits in the pancrease of type 2 diabetics.
1366 7929615 Amylin has structural and functional relationships to two other messenger proteins, calcitonin and CGRP.
1367 7929615 Amylin has relatively potent calcitonin-like activity on bone metabolism and weaker CGRP-like activity on the vasculature.
1368 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1369 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1370 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1371 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1372 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1373 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1374 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1375 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1376 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1377 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1378 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1379 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1380 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1381 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1382 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1383 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1384 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1385 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1386 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1387 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1388 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1389 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1390 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1391 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1392 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1393 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1394 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1395 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1396 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1397 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1398 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1399 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1400 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1401 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1402 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1403 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1404 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1405 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1406 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1407 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1408 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1409 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1410 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1411 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1412 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1413 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1414 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1415 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1416 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1417 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1418 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1419 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1420 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1421 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1422 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1423 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1424 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1425 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1426 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1427 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1428 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1429 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1430 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1431 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1432 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1433 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1434 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1435 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1436 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1437 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1438 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1439 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1440 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1441 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1442 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1443 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1444 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1445 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1446 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1447 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1448 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1449 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1450 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1451 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1452 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1453 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1454 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1455 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1456 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1457 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1458 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1459 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1460 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1461 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1462 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1463 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1464 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1465 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1466 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1467 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1468 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1469 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1470 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1471 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1472 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1473 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1474 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1475 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1476 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1477 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1478 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1479 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1480 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1481 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1482 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1483 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1484 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1485 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1486 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1487 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1488 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1489 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1490 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1491 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1492 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1493 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1494 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1495 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1496 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1497 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1498 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1499 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1500 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1501 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1502 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1503 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1504 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1505 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1506 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1507 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1508 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1509 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1510 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1511 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1512 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1513 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1514 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1515 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1516 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1517 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1518 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1519 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1520 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1521 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1522 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1523 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1524 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1525 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1526 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1527 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1528 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1529 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1530 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1531 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1532 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1533 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1534 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1535 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1536 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1537 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1538 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1539 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1540 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1541 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1542 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1543 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1544 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1545 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1546 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1547 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1548 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1549 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1550 7929617 Molecular physiology of the islet amyloid polypeptide (IAPP)/amylin gene in man, rat, and transgenic mice.
1551 7929617 Islet amyloid polypeptide ("amylin") is the major protein component of amyloid deposits in pancreatic islets of type 2 (non-insulin-dependent) diabetic patients.
1552 7929617 Islet amyloid polypeptide consists of 37 amino acids, is co-produced and co-secreted with insulin from islet beta-cells, can act as a hormone in regulation of carbohydrate metabolism, and is implicated in the pathogenesis of islet amyloid formation and of type 2 diabetes mellitus.
1553 7929617 Rat islet amyloid polypeptide differs from human islet amyloid polypeptide particularly in the region of amino acids 25-28, which is important for amyloid fibril formation.
1554 7929617 To study the genetic organization and biosynthesis of islet amyloid polypeptide, we have isolated and analyzed the human and rat islet amyloid polypeptide gene and corresponding cDNAs.
1555 7929617 Apart from a putative signal sequence, these precursors contain amino- and carboxy-terminal flanking peptides in addition to the mature islet amyloid polypeptide.
1556 7929617 To understand regulation of islet amyloid polypeptide gene expression, we have identified several potential cis-acting transcriptional control elements that influence beta-cell-specific islet amyloid polypeptide gene expression.
1557 7929617 Using antisera raised against synthetic human islet amyloid polypeptide we developed a specific and sensitive radioimmunoassay to measure levels of islet amyloid polypeptide in plasma and tissue extracts.
1558 7929617 Also antisera raised against the flanking peptides will be used in studying human islet amyloid polypeptide biosynthesis.
1559 7929617 Elevated plasma islet amyloid polypeptide levels have been demonstrated in some diabetic, glucose-intolerant, and obese individuals, as well as in rodent models of diabetes and obesity.
1560 7929617 To examine the potential role of islet amyloid polypeptide overproduction in the pathogenesis of islet amyloid formation and type 2 diabetes, we generated transgenic mice that overproduce either the amyloidogenic human islet amyloid polypeptide or the nonamyloidogenic rat islet amyloid polypeptide in their islet beta-cells.
1561 7929617 Despite moderately to highly (up to 15-fold) elevated plasma islet amyloid polypeptide levels, no marked hyperglycemia, hyperinsulinemia or obesity was observed.
1562 7929617 This suggests that chronic overproduction of islet amyloid polypeptide "per se" does not cause insulin resistance.
1563 7929617 No islet amyloid deposits were detected in mice up to 63 weeks of age, but in every mouse producing human islet amyloid polypeptide (as in man), accumulation of islet amyloid polypeptide was observed in beta-cell lysosomal bodies.
1564 7958499 Pancreatic expression and secretion of human islet amyloid polypeptide in a transgenic mouse.
1565 7958499 Islet amyloid polypeptide (IAPP) is a secretory product of the pancreatic beta-cell, which is the primary constituent of the islet amyloid that develops in type II diabetes.
1566 7958499 Pancreatic expression and secretion of human islet amyloid polypeptide in a transgenic mouse.
1567 7958499 Islet amyloid polypeptide (IAPP) is a secretory product of the pancreatic beta-cell, which is the primary constituent of the islet amyloid that develops in type II diabetes.
1568 7962550 Increased levels of circulating islet amyloid polypeptide in patients with chronic renal failure have no effect on insulin secretion.
1569 7962550 To elucidate the metabolism of islet amyloid polypeptide (IAPP) with respect to a possible renal elimination we investigated IAPP levels in 20 lean, nondiabetic patients with renal failure maintained on chronic hemodialysis (HD) and in 20 healthy controls.
1570 7962550 Increased levels of circulating islet amyloid polypeptide in patients with chronic renal failure have no effect on insulin secretion.
1571 7962550 To elucidate the metabolism of islet amyloid polypeptide (IAPP) with respect to a possible renal elimination we investigated IAPP levels in 20 lean, nondiabetic patients with renal failure maintained on chronic hemodialysis (HD) and in 20 healthy controls.
1572 7983807 Islet amyloid deposits are the characteristic lesions of the pancreas of the patients with non-insulin-dependent diabetes mellitus (NIDDM).
1573 7983807 Islet amyloid polypeptide (IAPP or amylin) is a 37 amino acid peptide, which was extracted and characterized from islet amyloid deposits in patients with NIDDM.
1574 7983807 Islet amyloid deposits are the characteristic lesions of the pancreas of the patients with non-insulin-dependent diabetes mellitus (NIDDM).
1575 7983807 Islet amyloid polypeptide (IAPP or amylin) is a 37 amino acid peptide, which was extracted and characterized from islet amyloid deposits in patients with NIDDM.
1576 7983808 [Construction of transgenic mouse system expressing human islet amyloid polypeptide (IAPP)/amylin].
1577 7983808 To investigate the relationship between human islet amyloid polypeptide (IAPP)/amylin expression and islet amyloid deposits in the pathogenesis of human non-insulin-dependent diabetes mellitus (NIDDM), we generated transgenic mice using a human IAPP cDNA connected to an insulin promoter.
1578 7983808 [Construction of transgenic mouse system expressing human islet amyloid polypeptide (IAPP)/amylin].
1579 7983808 To investigate the relationship between human islet amyloid polypeptide (IAPP)/amylin expression and islet amyloid deposits in the pathogenesis of human non-insulin-dependent diabetes mellitus (NIDDM), we generated transgenic mice using a human IAPP cDNA connected to an insulin promoter.
1580 8027243 We report islet hyperplasia, nesidioblastosis, and abundant islet amyloidosis (derived from islet amyloid polypeptide) in a case of severe insulin resistance due to a circulating antiinsulin receptor antibody.
1581 8031680 Increasing numbers of hereditary amyloid-related transthyretin mutations have been reported (more than 30 to date).
1582 8031680 In islet amyloid polypeptide, the amyloid of adult-onset diabetes, the amino-acid sequence Ala-Ile-Leu-Ser at positions 25 to 28 appears to be critical for fibrillogenesis.
1583 8031680 Increasing numbers of hereditary amyloid-related transthyretin mutations have been reported (more than 30 to date).
1584 8031680 In islet amyloid polypeptide, the amyloid of adult-onset diabetes, the amino-acid sequence Ala-Ile-Leu-Ser at positions 25 to 28 appears to be critical for fibrillogenesis.
1585 8060096 An improved method for the determination of islet amyloid polypeptide levels in plasma.
1586 8060096 We describe an improved method for the determination of islet amyloid polypeptide (IAPP) levels in plasma.
1587 8060096 An improved method for the determination of islet amyloid polypeptide levels in plasma.
1588 8060096 We describe an improved method for the determination of islet amyloid polypeptide (IAPP) levels in plasma.
1589 8061570 Islet amyloid polypeptide in Psammomys obesus: lack of correlation between insulin resistance and plasma IAPP levels.
1590 8061570 We have examined the presence of islet amyloid polypeptide (IAPP), or amylin, in these animals.
1591 8061570 Therefore, insulin resistance in Psammomys obesus does not appear to result from an elevated plasma IAPP level nor from development of amyloid deposits.
1592 8061570 Islet amyloid polypeptide in Psammomys obesus: lack of correlation between insulin resistance and plasma IAPP levels.
1593 8061570 We have examined the presence of islet amyloid polypeptide (IAPP), or amylin, in these animals.
1594 8061570 Therefore, insulin resistance in Psammomys obesus does not appear to result from an elevated plasma IAPP level nor from development of amyloid deposits.
1595 8061570 Islet amyloid polypeptide in Psammomys obesus: lack of correlation between insulin resistance and plasma IAPP levels.
1596 8061570 We have examined the presence of islet amyloid polypeptide (IAPP), or amylin, in these animals.
1597 8061570 Therefore, insulin resistance in Psammomys obesus does not appear to result from an elevated plasma IAPP level nor from development of amyloid deposits.
1598 8076756 Islet amyloid polypeptide is expressed in endocrine cells of the gastric mucosa in the rat and mouse.
1599 8078905 Intra- and extracellular amyloid fibrils are formed in cultured pancreatic islets of transgenic mice expressing human islet amyloid polypeptide.
1600 8078905 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid deposits found in the islets of non-insulin-dependent diabetic patients.
1601 8078905 Formation of islet amyloid is associated with a progressive destruction of insulin-producing beta cells.
1602 8078905 Thus, glucose-induced expression and secretion of hIAPP in transgenic mouse islets can lead to formation of amyloid fibrils similar to that found in non-insulin-dependent diabetes mellitus.
1603 8078905 Intra- and extracellular amyloid fibrils are formed in cultured pancreatic islets of transgenic mice expressing human islet amyloid polypeptide.
1604 8078905 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid deposits found in the islets of non-insulin-dependent diabetic patients.
1605 8078905 Formation of islet amyloid is associated with a progressive destruction of insulin-producing beta cells.
1606 8078905 Thus, glucose-induced expression and secretion of hIAPP in transgenic mouse islets can lead to formation of amyloid fibrils similar to that found in non-insulin-dependent diabetes mellitus.
1607 8078905 Intra- and extracellular amyloid fibrils are formed in cultured pancreatic islets of transgenic mice expressing human islet amyloid polypeptide.
1608 8078905 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid deposits found in the islets of non-insulin-dependent diabetic patients.
1609 8078905 Formation of islet amyloid is associated with a progressive destruction of insulin-producing beta cells.
1610 8078905 Thus, glucose-induced expression and secretion of hIAPP in transgenic mouse islets can lead to formation of amyloid fibrils similar to that found in non-insulin-dependent diabetes mellitus.
1611 8078905 Intra- and extracellular amyloid fibrils are formed in cultured pancreatic islets of transgenic mice expressing human islet amyloid polypeptide.
1612 8078905 Islet amyloid polypeptide (IAPP) is the constituent peptide of amyloid deposits found in the islets of non-insulin-dependent diabetic patients.
1613 8078905 Formation of islet amyloid is associated with a progressive destruction of insulin-producing beta cells.
1614 8078905 Thus, glucose-induced expression and secretion of hIAPP in transgenic mouse islets can lead to formation of amyloid fibrils similar to that found in non-insulin-dependent diabetes mellitus.
1615 8111613 In both species, amyloid deposition occurs in pancreatic islets and is derived from the newly discovered pancreatic hormone islet amyloid polypeptide (IAPP), or amylin.
1616 8111613 Amylin also reduces insulin secretion and induces insulin resistance.
1617 8163061 The biological role of islet amyloid polypeptide (amylin) in diabetes: some recent results.
1618 8168639 Human islet amyloid polypeptide accumulates at similar sites in islets of transgenic mice and humans.
1619 8168639 The cellular mechanisms responsible for conversion of islet amyloid polypeptide (IAPP) into insoluble amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM) are not clear.
1620 8168639 Human islet amyloid polypeptide accumulates at similar sites in islets of transgenic mice and humans.
1621 8168639 The cellular mechanisms responsible for conversion of islet amyloid polypeptide (IAPP) into insoluble amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM) are not clear.
1622 8200302 Islet amyloid polypeptide gene: no evidence of abnormal promoter region in thirty-five type 2 diabetic patients.
1623 8200302 Aberrant expression of the IAPP gene may be involved in the pathogenesis and islet amyloid formation of type 2 (non-insulin dependent) diabetes mellitus.
1624 8200302 Islet amyloid polypeptide gene: no evidence of abnormal promoter region in thirty-five type 2 diabetic patients.
1625 8200302 Aberrant expression of the IAPP gene may be involved in the pathogenesis and islet amyloid formation of type 2 (non-insulin dependent) diabetes mellitus.
1626 8201968 This relative hypersecretion of amylin is thought to provide an important insight into how amylin aggregates to form islet amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM).
1627 8204973 Islet amyloid polypeptide (IAPP/amylin) in non-insulin-dependent diabetes mellitus.
1628 8210295 These could include 'defects' in islet cell function: examples could be mutations in the glucokinase gene and the genetic factors leading to amyloid deposition.
1629 8212454 Islet amyloid polypeptide: a review of its biology and potential roles in the pathogenesis of diabetes mellitus.
1630 8212454 Islet amyloid polypeptide (IAPP) is a recently discovered polypeptide that is the principal constituent of IA in human beings, cats, and macaques.
1631 8212454 Islet amyloid polypeptide: a review of its biology and potential roles in the pathogenesis of diabetes mellitus.
1632 8212454 Islet amyloid polypeptide (IAPP) is a recently discovered polypeptide that is the principal constituent of IA in human beings, cats, and macaques.
1633 8239277 A new hypothesis for the mechanism of amyloid toxicity, based on the calcium channel activity of amyloid beta protein (A beta P) in phospholipid bilayer membranes.
1634 8245641 [Islet amyloid polypeptide and diabetes mellitus].
1635 8277951 Islet amyloid polypeptide in patients with pancreatic cancer and diabetes.
1636 8288058 Islet amyloid polypeptide in human insulinomas.
1637 8288058 Amyloid deposits that characteristically form in the pancreatic islets of patients with non-insulin-dependent diabetes mellitus (NIDDM) and in insulinomas are both derived from islet amyloid polypeptide (IAPP).
1638 8288058 Ubiquitin immunoreactivity also was observed as punctate intracellular labeling and within large extracellular amyloid deposits.
1639 8288058 Islet amyloid polypeptide in human insulinomas.
1640 8288058 Amyloid deposits that characteristically form in the pancreatic islets of patients with non-insulin-dependent diabetes mellitus (NIDDM) and in insulinomas are both derived from islet amyloid polypeptide (IAPP).
1641 8288058 Ubiquitin immunoreactivity also was observed as punctate intracellular labeling and within large extracellular amyloid deposits.
1642 8288058 Islet amyloid polypeptide in human insulinomas.
1643 8288058 Amyloid deposits that characteristically form in the pancreatic islets of patients with non-insulin-dependent diabetes mellitus (NIDDM) and in insulinomas are both derived from islet amyloid polypeptide (IAPP).
1644 8288058 Ubiquitin immunoreactivity also was observed as punctate intracellular labeling and within large extracellular amyloid deposits.
1645 8304912 Alternatively, in the development of diabetes, the genetic basis for insulin resistance may be necessary, but not sufficient, requiring a second major gene for beta-cell vulnerability (e.g. exhaustion, deterioration of function, amyloid deposition).
1646 8305633 Calcitonin gene-related peptide (CGRP) shares about 46% and 20% amino acid sequence homology with islet amyloid polypeptide (IAPP) and salmon calcitonin (sCT).
1647 8305633 The non-amidated form of hIAPP; human diabetes-associated peptide (hDAP) did not inhibit the binding of 125I-[His]hCGRP I and sCT was only effective at a high concentration (1 microM).
1648 8305633 Human CGRP I and cCGRP at 2.5 microM did not stimulate the activity of hamster insulinoma cell membranes adenylate cyclase, while glucagon (1 microM) induced a 2-fold increase.
1649 8305633 These results and the observation that cCGRP and hCGRP I did not influence adenylate cyclase activity provide further evidence for CGRP receptor subtypes.
1650 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1651 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1652 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1653 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1654 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1655 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1656 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1657 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1658 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1659 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1660 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1661 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1662 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1663 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1664 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1665 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1666 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1667 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1668 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1669 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1670 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1671 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1672 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1673 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1674 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1675 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1676 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1677 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1678 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1679 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1680 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1681 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1682 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1683 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1684 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1685 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1686 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1687 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1688 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1689 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1690 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1691 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1692 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1693 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1694 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1695 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1696 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1697 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1698 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1699 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1700 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1701 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1702 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1703 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1704 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1705 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1706 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1707 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1708 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1709 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1710 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1711 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1712 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1713 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1714 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1715 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1716 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1717 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1718 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1719 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1720 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1721 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1722 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1723 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1724 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1725 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1726 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1727 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1728 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1729 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1730 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1731 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1732 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1733 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1734 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1735 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1736 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1737 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1738 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1739 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1740 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1741 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1742 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1743 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1744 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1745 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1746 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1747 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1748 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1749 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1750 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1751 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1752 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1753 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1754 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1755 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1756 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1757 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1758 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1759 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1760 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1761 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1762 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1763 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1764 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1765 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1766 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1767 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1768 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1769 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1770 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1771 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1772 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1773 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1774 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1775 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1776 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1777 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1778 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1779 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1780 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1781 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1782 8307253 Chronic overproduction of islet amyloid polypeptide/amylin in transgenic mice: lysosomal localization of human islet amyloid polypeptide and lack of marked hyperglycaemia or hyperinsulinaemia.
1783 8307253 Type 2 (non-insulin-dependent) diabetes mellitus is characterised by hyperglycaemia, peripheral insulin resistance, impaired insulin secretion and pancreatic islet amyloid formation.
1784 8307253 The major constituent of islet amyloid is islet amyloid polypeptide (amylin).
1785 8307253 Islet amyloid polypeptide is synthesized by islet beta cells and co-secreted with insulin.
1786 8307253 The ability of islet amyloid polypeptide to form amyloid fibrils is related to its species-specific amino acid sequence.
1787 8307253 Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
1788 8307253 To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
1789 8307253 Transgenic islet amyloid polypeptide mRNA was detected in the pancreas in all transgenic mice.
1790 8307253 Plasma islet amyloid polypeptide levels were significantly elevated (up to 15-fold) in three out of five transgenic lines, but elevated glucose levels, hyperinsulinaemia and obesity were not observed.
1791 8307253 This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
1792 8307253 Islet amyloid polypeptide immunoreactivity was localized to beta-cell secretory granules in all mice.
1793 8307253 Islet amyloid polypeptide immunoreactivity in beta-cell lysosomes was seen only in mice with the human islet amyloid polypeptide gene, as in human beta cells, and might represent an initial step in intracellular formation of amyloid fibrils.
1794 8314019 Pancreatic islet blood flow in the rat after administration of islet amyloid polypeptide or calcitonin gene-related peptide.
1795 8314019 Anesthetized male Sprague-Dawley rats (350-400 g) were injected intravenously with either 0.1, 1, 15, or 25 nmol rat islet amyloid polypeptide (IAPP), 65 or 650 pmol rat calcitonin gene-related peptide (CGRP), or saline alone.
1796 8314019 Pancreatic islet blood flow in the rat after administration of islet amyloid polypeptide or calcitonin gene-related peptide.
1797 8314019 Anesthetized male Sprague-Dawley rats (350-400 g) were injected intravenously with either 0.1, 1, 15, or 25 nmol rat islet amyloid polypeptide (IAPP), 65 or 650 pmol rat calcitonin gene-related peptide (CGRP), or saline alone.
1798 8323756 Islet amyloid polypeptide--hen or egg in type 2 diabetes pathogenesis?
1799 8323756 Islet amyloid polypeptide (IAPP or amylin) was first identified as the major peptide constituent of amyloid deposited in the islets of Langerhans in patients with type-2 diabetes mellitus or in insulinomas.
1800 8323756 Islet amyloid polypeptide--hen or egg in type 2 diabetes pathogenesis?
1801 8323756 Islet amyloid polypeptide (IAPP or amylin) was first identified as the major peptide constituent of amyloid deposited in the islets of Langerhans in patients with type-2 diabetes mellitus or in insulinomas.
1802 8323757 Whole-body autoradiography of 123I-labelled islet amyloid polypeptide (IAPP).
1803 8323757 Islet amyloid polypeptide (IAPP) in a 37 amino-acid pancreatic islet polypeptide, displaying about 50% amino-acid homology with neuropeptide calcitonin gene-related peptide (CGRP).
1804 8323757 Human IAPP has the ability to precipitate in the shape of amyloid in patients with type II (non-insulin dependent) diabetes but otherwise its functional or pathophysiological role is enigmatic.
1805 8323757 Whole-body autoradiography of 123I-labelled islet amyloid polypeptide (IAPP).
1806 8323757 Islet amyloid polypeptide (IAPP) in a 37 amino-acid pancreatic islet polypeptide, displaying about 50% amino-acid homology with neuropeptide calcitonin gene-related peptide (CGRP).
1807 8323757 Human IAPP has the ability to precipitate in the shape of amyloid in patients with type II (non-insulin dependent) diabetes but otherwise its functional or pathophysiological role is enigmatic.
1808 8323757 Whole-body autoradiography of 123I-labelled islet amyloid polypeptide (IAPP).
1809 8323757 Islet amyloid polypeptide (IAPP) in a 37 amino-acid pancreatic islet polypeptide, displaying about 50% amino-acid homology with neuropeptide calcitonin gene-related peptide (CGRP).
1810 8323757 Human IAPP has the ability to precipitate in the shape of amyloid in patients with type II (non-insulin dependent) diabetes but otherwise its functional or pathophysiological role is enigmatic.
1811 8335181 Evidence for selective release of rodent islet amyloid polypeptide through the constitutive secretory pathway.
1812 8335181 To determine the potential for differential release of islet amyloid polypeptide and insulin, we performed studies in rat islet monolayer cultures under conditions known to impair regulated beta-cell secretion.
1813 8335181 In inhibiting concentrations of epinephrine or the absence of calcium, islet amyloid polypeptide was secreted through a constitutive pathway while insulin was not.
1814 8335181 These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
1815 8335181 Evidence for selective release of rodent islet amyloid polypeptide through the constitutive secretory pathway.
1816 8335181 To determine the potential for differential release of islet amyloid polypeptide and insulin, we performed studies in rat islet monolayer cultures under conditions known to impair regulated beta-cell secretion.
1817 8335181 In inhibiting concentrations of epinephrine or the absence of calcium, islet amyloid polypeptide was secreted through a constitutive pathway while insulin was not.
1818 8335181 These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
1819 8335181 Evidence for selective release of rodent islet amyloid polypeptide through the constitutive secretory pathway.
1820 8335181 To determine the potential for differential release of islet amyloid polypeptide and insulin, we performed studies in rat islet monolayer cultures under conditions known to impair regulated beta-cell secretion.
1821 8335181 In inhibiting concentrations of epinephrine or the absence of calcium, islet amyloid polypeptide was secreted through a constitutive pathway while insulin was not.
1822 8335181 These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
1823 8335181 Evidence for selective release of rodent islet amyloid polypeptide through the constitutive secretory pathway.
1824 8335181 To determine the potential for differential release of islet amyloid polypeptide and insulin, we performed studies in rat islet monolayer cultures under conditions known to impair regulated beta-cell secretion.
1825 8335181 In inhibiting concentrations of epinephrine or the absence of calcium, islet amyloid polypeptide was secreted through a constitutive pathway while insulin was not.
1826 8335181 These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
1827 8344641 Islet amyloid polypeptide/amylin contents in pancreata increase in genetically obese and diabetic mice.
1828 8344641 To search for a possible relationship between islet amyloid polypeptide (IAPP)/amylin and the pathophysiology of type 2 diabetes mellitus, we examined IAPP contents in the pancreata of genetically obese and diabetic mice (C57BL/6J ob/ob and KK mice), at 24 weeks of age, using a specific radioimmunoassay.
1829 8344641 Islet amyloid polypeptide/amylin contents in pancreata increase in genetically obese and diabetic mice.
1830 8344641 To search for a possible relationship between islet amyloid polypeptide (IAPP)/amylin and the pathophysiology of type 2 diabetes mellitus, we examined IAPP contents in the pancreata of genetically obese and diabetic mice (C57BL/6J ob/ob and KK mice), at 24 weeks of age, using a specific radioimmunoassay.
1831 8345041 The ability of TTR to form amyloid fibrils does not appear to be related to its affinity for T4.
1832 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1833 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1834 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1835 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1836 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1837 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1838 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1839 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1840 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1841 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1842 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1843 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1844 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1845 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1846 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1847 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1848 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1849 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1850 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1851 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1852 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1853 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1854 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1855 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1856 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1857 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1858 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1859 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1860 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1861 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1862 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1863 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1864 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1865 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1866 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1867 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1868 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1869 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1870 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1871 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1872 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1873 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1874 8375592 Regulation of islet amyloid polypeptide in human pancreatic islets.
1875 8375592 This study investigated the effect of glucose on islet amyloid polypeptide secretion, content, and mRNA synthesis of human pancreatic islets.
1876 8375592 The release of islet amyloid polypeptide from fresh isolated islets in response to glucose was parallel to that of insulin.
1877 8375592 The islet amyloid polypeptide-to-insulin molar ratios in response to 5.5 and 16.7 mM glucose were 1:16 and 1:15 respectively.
1878 8375592 The islet amyloid polypeptide response to the 1-day culture was similar to that of the fresh islets; however, after the 7-day culture the islet amyloid polypeptide and insulin secretory responses to glucose were dissociated.
1879 8375592 The insulin response of islets to a high-glucose stimulus was significantly (P < 0.001) increased, whereas the islet amyloid polypeptide response of islets to the same stimulus was blunted.
1880 8375592 Quantification of both signals by densitometry showed a greater increase for islet amyloid polypeptide than for insulin.
1881 8380642 Alzheimer disease amyloid beta protein forms calcium channels in bilayer membranes: blockade by tromethamine and aluminum.
1882 8405756 Inhibition of insulin secretion, but normal peripheral insulin sensitivity, in a patient with a malignant endocrine pancreatic tumour producing high amounts of an islet amyloid polypeptide-like molecule.
1883 8405756 Islet amyloid polypeptide or amylin is a polypeptide secreted mainly from the pancreatic beta cells together with insulin upon stimulation.
1884 8405756 High levels of islet amyloid polypeptide have also been shown to increase the peripheral insulin resistance and consequently a role for islet amyloid polypeptide in the glucose homeostasis has been suggested.
1885 8405756 We have studied the glucose homeostasis in a patient with a malignant endocrine pancreatic tumour producing large amounts of an islet amyloid polypeptide-like molecule (about 400 times the upper reference level for islet amyloid polypeptide).
1886 8405756 However, culture of rat islets with normal human serum supplemented with synthetic rat islet amyloid polypeptide did not affect the glucose-stimulated insulin release.
1887 8405756 Inhibition of insulin secretion, but normal peripheral insulin sensitivity, in a patient with a malignant endocrine pancreatic tumour producing high amounts of an islet amyloid polypeptide-like molecule.
1888 8405756 Islet amyloid polypeptide or amylin is a polypeptide secreted mainly from the pancreatic beta cells together with insulin upon stimulation.
1889 8405756 High levels of islet amyloid polypeptide have also been shown to increase the peripheral insulin resistance and consequently a role for islet amyloid polypeptide in the glucose homeostasis has been suggested.
1890 8405756 We have studied the glucose homeostasis in a patient with a malignant endocrine pancreatic tumour producing large amounts of an islet amyloid polypeptide-like molecule (about 400 times the upper reference level for islet amyloid polypeptide).
1891 8405756 However, culture of rat islets with normal human serum supplemented with synthetic rat islet amyloid polypeptide did not affect the glucose-stimulated insulin release.
1892 8405756 Inhibition of insulin secretion, but normal peripheral insulin sensitivity, in a patient with a malignant endocrine pancreatic tumour producing high amounts of an islet amyloid polypeptide-like molecule.
1893 8405756 Islet amyloid polypeptide or amylin is a polypeptide secreted mainly from the pancreatic beta cells together with insulin upon stimulation.
1894 8405756 High levels of islet amyloid polypeptide have also been shown to increase the peripheral insulin resistance and consequently a role for islet amyloid polypeptide in the glucose homeostasis has been suggested.
1895 8405756 We have studied the glucose homeostasis in a patient with a malignant endocrine pancreatic tumour producing large amounts of an islet amyloid polypeptide-like molecule (about 400 times the upper reference level for islet amyloid polypeptide).
1896 8405756 However, culture of rat islets with normal human serum supplemented with synthetic rat islet amyloid polypeptide did not affect the glucose-stimulated insulin release.
1897 8405756 Inhibition of insulin secretion, but normal peripheral insulin sensitivity, in a patient with a malignant endocrine pancreatic tumour producing high amounts of an islet amyloid polypeptide-like molecule.
1898 8405756 Islet amyloid polypeptide or amylin is a polypeptide secreted mainly from the pancreatic beta cells together with insulin upon stimulation.
1899 8405756 High levels of islet amyloid polypeptide have also been shown to increase the peripheral insulin resistance and consequently a role for islet amyloid polypeptide in the glucose homeostasis has been suggested.
1900 8405756 We have studied the glucose homeostasis in a patient with a malignant endocrine pancreatic tumour producing large amounts of an islet amyloid polypeptide-like molecule (about 400 times the upper reference level for islet amyloid polypeptide).
1901 8405756 However, culture of rat islets with normal human serum supplemented with synthetic rat islet amyloid polypeptide did not affect the glucose-stimulated insulin release.
1902 8405756 Inhibition of insulin secretion, but normal peripheral insulin sensitivity, in a patient with a malignant endocrine pancreatic tumour producing high amounts of an islet amyloid polypeptide-like molecule.
1903 8405756 Islet amyloid polypeptide or amylin is a polypeptide secreted mainly from the pancreatic beta cells together with insulin upon stimulation.
1904 8405756 High levels of islet amyloid polypeptide have also been shown to increase the peripheral insulin resistance and consequently a role for islet amyloid polypeptide in the glucose homeostasis has been suggested.
1905 8405756 We have studied the glucose homeostasis in a patient with a malignant endocrine pancreatic tumour producing large amounts of an islet amyloid polypeptide-like molecule (about 400 times the upper reference level for islet amyloid polypeptide).
1906 8405756 However, culture of rat islets with normal human serum supplemented with synthetic rat islet amyloid polypeptide did not affect the glucose-stimulated insulin release.
1907 8425669 Influence of islet amyloid polypeptide and the 8-37 fragment of islet amyloid polypeptide on insulin release from perifused rat islets.
1908 8425669 IAPP at 10(-7) M reduced insulin release by 32% from 7.1 (95% Cl 5.8-8.6) to 4.8 (3.0-7.5) fmol.min-1 x islet-1 (P = 0.046, n = 7).
1909 8425669 IAPP at 1.5 x 10(-6) M reduced insulin release by 62% from 6.5 (3.4-12.3) to 2.5 (1.4-4.4) fmol.min-1 x islet-1 (P = 0.001, n = 6).
1910 8449286 Formation of islet amyloid from islet amyloid polypeptide.
1911 8460100 Molecular form of islet amyloid polypeptide (amylin) released from isolated rat islets of Langerhans.
1912 8460100 Islet amyloid polypeptide (IAPP) is a 37-amino acid residue polypeptide, originally isolated from the pancreatic amyloid deposits of patients with type II diabetes mellitus.
1913 8460100 Molecular form of islet amyloid polypeptide (amylin) released from isolated rat islets of Langerhans.
1914 8460100 Islet amyloid polypeptide (IAPP) is a 37-amino acid residue polypeptide, originally isolated from the pancreatic amyloid deposits of patients with type II diabetes mellitus.
1915 8462623 Accumulation of amyloid over many years can lead to slowly progressive disruption of islet architecture and possibly to some of the abnormalities in insulin secretion, as found in NIDDM patients.
1916 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1917 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1918 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1919 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1920 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1921 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1922 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1923 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1924 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1925 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1926 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1927 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1928 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1929 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1930 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1931 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1932 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1933 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1934 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1935 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1936 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1937 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1938 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1939 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1940 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1941 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1942 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1943 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1944 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1945 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1946 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1947 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1948 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1949 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1950 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1951 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1952 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1953 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1954 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1955 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1956 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1957 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1958 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1959 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1960 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1961 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1962 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1963 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1964 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1965 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1966 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1967 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1968 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1969 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1970 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1971 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1972 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1973 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1974 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1975 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1976 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1977 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1978 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1979 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1980 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1981 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1982 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1983 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1984 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1985 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1986 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1987 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1988 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
1989 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
1990 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
1991 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
1992 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
1993 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
1994 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
1995 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
1996 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
1997 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
1998 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
1999 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
2000 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
2001 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
2002 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
2003 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
2004 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
2005 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
2006 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
2007 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
2008 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
2009 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
2010 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
2011 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
2012 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
2013 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
2014 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
2015 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
2016 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
2017 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
2018 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
2019 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
2020 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
2021 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
2022 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
2023 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
2024 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
2025 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
2026 8477877 Islet amyloid polypeptide: demonstration of mRNA in human pancreatic islets by in situ hybridization in islets with and without amyloid deposits.
2027 8477877 Islet amyloid polypeptide which is normally coexpressed with insulin in beta cells, forms amyloid deposits especially in islets of Type 2 (non-insulin-dependent) diabetic subjects.
2028 8477877 Occurrence of islet amyloid is paradoxically associated with loss of islet amyloid polypeptide immunoreactivity in beta cells.
2029 8477877 The present study was undertaken to examine whether the islet amyloid polypeptide gene is expressed in islets with decreased islet amyloid polypeptide immunoreactivity.
2030 8477877 Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
2031 8477877 Six of the specimens from the diabetic and three of those from the non-diabetic patients had varying degrees of islet amyloid polypeptide-derived islet amyloid.
2032 8477877 Amyloid deposits were associated with decreased numbers of beta cells with islet amyloid polypeptide immunoreactivity despite an apparent normal frequency of insulin-containing cells.
2033 8477877 This discrepancy might reflect an alteration in islet amyloid polypeptide production or processing at a transcriptional or post-transcriptional level.
2034 8477877 In contrast to the varying immunohistochemical patterns, islets of all categories showed strong labelling using an islet amyloid polypeptide probe for in situ hybridization.
2035 8477877 It is concluded that islet amyloid polypeptide production is not altered at the transcriptional level.
2036 8477877 The following possibilities remain: (1) islet amyloid polypeptide production may be altered at a post-transcriptional level or (2) that islet amyloid polypeptide production is normal but the reduced immunoreactivity of the cells reflects a reduced storage of IAPP in secretory granules.
2037 8477949 Amylin is a normal secretory protein of the pancreatic beta-cells as well as a major constituent of the islet amyloid deposits in patients with non-insulin-dependent diabetes mellitus.
2038 8477949 Amylin did not alter glucose-stimulated secretion of insulin but significantly inhibited arginine-stimulated secretion of insulin (control: 20.9 +/- 1.4 pmol/min; amylin group: 14.8 +/- 1.6 pmol/min, p < 0.05).
2039 8479567 [Islet amyloid polypeptide or amylin; breakthrough in the diagnosis and prevention of type II diabetes mellitus?].
2040 8483872 Marked islet amyloid polypeptide-positive amyloid deposition: a possible cause of severely insulin-deficient diabetes mellitus with atrophied exocrine pancreas.
2041 8483872 Islets replaced by islet amyloid polypeptide (IAPP)-positive amyloid (IAPP-AM) amounted to 77% in the tail, 74% in the body, and 73% in the head of the pancreas.
2042 8483872 Marked islet amyloid polypeptide-positive amyloid deposition: a possible cause of severely insulin-deficient diabetes mellitus with atrophied exocrine pancreas.
2043 8483872 Islets replaced by islet amyloid polypeptide (IAPP)-positive amyloid (IAPP-AM) amounted to 77% in the tail, 74% in the body, and 73% in the head of the pancreas.
2044 8484788 Strong promoter activity of human and rat islet amyloid polypeptide/amylin gene constructs in mouse beta cells (beta TC 3).
2045 8484788 Islet amyloid polypeptide (IAPP)('amylin') is co-produced with insulin in pancreatic beta cells and is the formative polypeptide of pancreatic amyloid in patients with type 2 (non-insulin-dependent) diabetes mellitus.
2046 8484788 Strong promoter activity of human and rat islet amyloid polypeptide/amylin gene constructs in mouse beta cells (beta TC 3).
2047 8484788 Islet amyloid polypeptide (IAPP)('amylin') is co-produced with insulin in pancreatic beta cells and is the formative polypeptide of pancreatic amyloid in patients with type 2 (non-insulin-dependent) diabetes mellitus.
2048 8495092 Plasma concentration of islet amyloid polypeptide in healthy children and patients with insulin-dependent diabetes mellitus.
2049 8495745 Human islet amyloid polypeptide transgenic mice as a model of non-insulin-dependent diabetes mellitus (NIDDM).
2050 8495745 To model islet amyloidogenesis in NIDDM and explore the glucoregulatory role of islet amyloid polypeptide (IAPP), we have created transgenic mice containing a rat insulin-I promoter-human IAPP fusion gene.
2051 8495745 Human islet amyloid polypeptide transgenic mice as a model of non-insulin-dependent diabetes mellitus (NIDDM).
2052 8495745 To model islet amyloidogenesis in NIDDM and explore the glucoregulatory role of islet amyloid polypeptide (IAPP), we have created transgenic mice containing a rat insulin-I promoter-human IAPP fusion gene.
2053 8508614 Plasma concentrations of islet amyloid polypeptide after glucagon administration in type 2 diabetic patients and non-diabetic subjects.
2054 8508614 Islet amyloid polypeptide (IAPP) is the main constituent of pancreatic islet amyloid, observed in the pancreases from patients with Type 2 diabetes mellitus.
2055 8508614 Plasma concentrations of islet amyloid polypeptide after glucagon administration in type 2 diabetic patients and non-diabetic subjects.
2056 8508614 Islet amyloid polypeptide (IAPP) is the main constituent of pancreatic islet amyloid, observed in the pancreases from patients with Type 2 diabetes mellitus.
2057 8513090 The recent discovery that IAPP, or amylin, a polypeptide solubilized from the amyloid substance found in the islets of Langerhans of most type II diabetics, is secreted along with insulin by beta cells and possesses anti-insulinic effects has opened new perspectives in the etiopathogenesis of this type of diabetes.
2058 8529120 Amyloid formation in response to beta cell stress occurs in vitro, but not in vivo, in islets of transgenic mice expressing human islet amyloid polypeptide.
2059 8529518 Islet amyloid is formed from the islet amyloid polypeptide (IAPP), a normal constituent of B-cells, co-secreted with insulin.
2060 8529518 A mutation of the glucokinase gene in MODY leads to diminished B-cell secretion but not amyloid formation.
2061 8529518 Islet amyloid is formed from the islet amyloid polypeptide (IAPP), a normal constituent of B-cells, co-secreted with insulin.
2062 8529518 A mutation of the glucokinase gene in MODY leads to diminished B-cell secretion but not amyloid formation.
2063 8549854 Genes known to be highly expressed in beta-cells were represented at a high frequency, namely insulin (15 of 80 clones), islet amyloid polypeptide (8 of 80 clones), proinsulin convertase 1 (6 of 80 clones), and neuropeptide Y (2 of 80 clones).
2064 8557106 Processing of pro-islet amyloid polypeptide (proIAPP) by the prohormone convertase PC2.
2065 8557106 Islet amyloid polypeptide (IAPP), 'amylin', is the component peptide of islet amyloid formed in Type 2 diabetes.
2066 8557106 An in vitro translation/translocation system was used to separately examine processing of human proIAPP by the beta-cell endopeptidases PC2, PC3 or furin.
2067 8557106 ProIAPP was converted to mature IAPP by PC2 but there was little conversion by furin or PC3.
2068 8557106 Processing of pro-islet amyloid polypeptide (proIAPP) by the prohormone convertase PC2.
2069 8557106 Islet amyloid polypeptide (IAPP), 'amylin', is the component peptide of islet amyloid formed in Type 2 diabetes.
2070 8557106 An in vitro translation/translocation system was used to separately examine processing of human proIAPP by the beta-cell endopeptidases PC2, PC3 or furin.
2071 8557106 ProIAPP was converted to mature IAPP by PC2 but there was little conversion by furin or PC3.
2072 8567648 Amylin is a 37-amino acid cytotoxic constituent of amyloid deposits found in the islets of Langerhans of patients with type II diabetes.
2073 8578004 Amylin immunoreactivity in the rat trachea and characterization of the interaction of amylin and somatostatin on airway mucus secretion.
2074 8578004 It is the major component of the islet amyloid typically found in non-insulin-dependent diabetes mellitus.
2075 8578004 Amylin may influence airway mucus secretion by paracrine and endocrine mechanisms, and our data suggest that amylin and somatostatin belong to the increasing number of peptides that are known to influence airway function.
2076 8593932 Linkage studies of the islet amyloid polypeptide/amylin and liver glycogen synthase genes and NIDDM.
2077 8593932 We have used this approach to identify a marker for the islet amyloid polypeptide gene on chromosome 12.
2078 8593932 Affected sib pair studies using a simple sequence repeat DNA polymorphism physically linked to the islet amyloid polypeptide and liver glycogen synthase genes showed no evidence for linkage with NIDDM, indicating that they are not major genes contributing to NIDDM susceptibility.
2079 8593932 Linkage studies of the islet amyloid polypeptide/amylin and liver glycogen synthase genes and NIDDM.
2080 8593932 We have used this approach to identify a marker for the islet amyloid polypeptide gene on chromosome 12.
2081 8593932 Affected sib pair studies using a simple sequence repeat DNA polymorphism physically linked to the islet amyloid polypeptide and liver glycogen synthase genes showed no evidence for linkage with NIDDM, indicating that they are not major genes contributing to NIDDM susceptibility.
2082 8593932 Linkage studies of the islet amyloid polypeptide/amylin and liver glycogen synthase genes and NIDDM.
2083 8593932 We have used this approach to identify a marker for the islet amyloid polypeptide gene on chromosome 12.
2084 8593932 Affected sib pair studies using a simple sequence repeat DNA polymorphism physically linked to the islet amyloid polypeptide and liver glycogen synthase genes showed no evidence for linkage with NIDDM, indicating that they are not major genes contributing to NIDDM susceptibility.
2085 8616529 Increased plasma levels of islet amyloid polypeptide in patients with primary hyperparathyroidism.
2086 8616529 Amylin, also named islet amyloid polypeptide (IAPP), is a protein that is processed and released from pancreatic beta-cells in parallel with insulin.
2087 8616529 Islet amyloid polypeptide is currently studied with regard to a role for insulin resistance in non-insulin-dependent diabetes.
2088 8616529 Increased plasma levels of islet amyloid polypeptide in patients with primary hyperparathyroidism.
2089 8616529 Amylin, also named islet amyloid polypeptide (IAPP), is a protein that is processed and released from pancreatic beta-cells in parallel with insulin.
2090 8616529 Islet amyloid polypeptide is currently studied with regard to a role for insulin resistance in non-insulin-dependent diabetes.
2091 8616529 Increased plasma levels of islet amyloid polypeptide in patients with primary hyperparathyroidism.
2092 8616529 Amylin, also named islet amyloid polypeptide (IAPP), is a protein that is processed and released from pancreatic beta-cells in parallel with insulin.
2093 8616529 Islet amyloid polypeptide is currently studied with regard to a role for insulin resistance in non-insulin-dependent diabetes.
2094 8622964 Islet amyloid formation associated with hyperglycemia in transgenic mice with pancreatic beta cell expression of human islet amyloid polypeptide.
2095 8622964 Pancreatic islet amyloid deposits are a characteristic pathologic feature of non-insulin-dependent diabetes mellitus and contain islet amyloid polypeptide (IAPP; amylin).
2096 8622964 We used transgenic mice that express human IAPP in pancreatic beta cells to explore the potential role of islet amyloid in the pathogenesis of non-insulin-dependent diabetes mellitus.
2097 8622964 Islet amyloid formation associated with hyperglycemia in transgenic mice with pancreatic beta cell expression of human islet amyloid polypeptide.
2098 8622964 Pancreatic islet amyloid deposits are a characteristic pathologic feature of non-insulin-dependent diabetes mellitus and contain islet amyloid polypeptide (IAPP; amylin).
2099 8622964 We used transgenic mice that express human IAPP in pancreatic beta cells to explore the potential role of islet amyloid in the pathogenesis of non-insulin-dependent diabetes mellitus.
2100 8622964 Islet amyloid formation associated with hyperglycemia in transgenic mice with pancreatic beta cell expression of human islet amyloid polypeptide.
2101 8622964 Pancreatic islet amyloid deposits are a characteristic pathologic feature of non-insulin-dependent diabetes mellitus and contain islet amyloid polypeptide (IAPP; amylin).
2102 8622964 We used transgenic mice that express human IAPP in pancreatic beta cells to explore the potential role of islet amyloid in the pathogenesis of non-insulin-dependent diabetes mellitus.
2103 8643694 Zn2+ interaction with Alzheimer amyloid beta protein calcium channels.
2104 8643694 The Alzheimer disease 40-residue amyloid beta protein (AbetaP[1-40]) forms cation-selective channels across acidic phospholipid bilayer membranes with spontaneous transitions over a wide range of conductances ranging from 40 to 4000 pS.
2105 8643694 Zn2+ interaction with Alzheimer amyloid beta protein calcium channels.
2106 8643694 The Alzheimer disease 40-residue amyloid beta protein (AbetaP[1-40]) forms cation-selective channels across acidic phospholipid bilayer membranes with spontaneous transitions over a wide range of conductances ranging from 40 to 4000 pS.
2107 8645452 Islet amyloid in type 2 (non-insulin-dependent) diabetes.
2108 8645452 Islet amyloid is formed from islet amyloid polypeptide (IAPP).
2109 8645452 Islet amyloid in type 2 (non-insulin-dependent) diabetes.
2110 8645452 Islet amyloid is formed from islet amyloid polypeptide (IAPP).
2111 8674834 Differential expression of islet amyloid polypeptide (amylin) and insulin in experimental diabetes in rodents.
2112 8674834 An increased ratio of islet amyloid polypeptide (IAPP) to insulin for mRNA and peptide content in pancreatic extracts and for secretion has been observed in experimental diabetes, suggesting a differentially regulated IAPP and insulin expression.
2113 8674834 Differential expression of islet amyloid polypeptide (amylin) and insulin in experimental diabetes in rodents.
2114 8674834 An increased ratio of islet amyloid polypeptide (IAPP) to insulin for mRNA and peptide content in pancreatic extracts and for secretion has been observed in experimental diabetes, suggesting a differentially regulated IAPP and insulin expression.
2115 8690157 Treatment with growth hormone and dexamethasone in mice transgenic for human islet amyloid polypeptide causes islet amyloidosis and beta-cell dysfunction.
2116 8690157 Islet amyloid derived from islet amyloid polypeptide (IAPP) is a well-recognized feature of type II diabetes.
2117 8690157 In the present study, we sought to test the hypothesis that pharmacological induction of insulin resistance in a mouse transgenic (TG) for human IAPP would induce islet amyloid and beta-cell dysfunction.
2118 8690157 Treatment with growth hormone and dexamethasone in mice transgenic for human islet amyloid polypeptide causes islet amyloidosis and beta-cell dysfunction.
2119 8690157 Islet amyloid derived from islet amyloid polypeptide (IAPP) is a well-recognized feature of type II diabetes.
2120 8690157 In the present study, we sought to test the hypothesis that pharmacological induction of insulin resistance in a mouse transgenic (TG) for human IAPP would induce islet amyloid and beta-cell dysfunction.
2121 8690157 Treatment with growth hormone and dexamethasone in mice transgenic for human islet amyloid polypeptide causes islet amyloidosis and beta-cell dysfunction.
2122 8690157 Islet amyloid derived from islet amyloid polypeptide (IAPP) is a well-recognized feature of type II diabetes.
2123 8690157 In the present study, we sought to test the hypothesis that pharmacological induction of insulin resistance in a mouse transgenic (TG) for human IAPP would induce islet amyloid and beta-cell dysfunction.
2124 8692984 Spontaneous diabetes mellitus in transgenic mice expressing human islet amyloid polypeptide.
2125 8692984 The islet in non-insulin-dependent diabetes mellitus (NIDDM) is characterized by loss of beta cells and large local deposits of amyloid derived from the 37-amino acid protein, islet amyloid polypeptide (IAPP).
2126 8692984 Spontaneous diabetes mellitus in transgenic mice expressing human islet amyloid polypeptide.
2127 8692984 The islet in non-insulin-dependent diabetes mellitus (NIDDM) is characterized by loss of beta cells and large local deposits of amyloid derived from the 37-amino acid protein, islet amyloid polypeptide (IAPP).
2128 8736810 Islet amyloid polypeptide: actions and role in the pathogenesis of diabetes.
2129 8740943 Lack of islet amyloid polypeptide/amylin-immunoreactivity in urine collected from healthy volunteers after ingestion of a carbohydrate-rich meal.
2130 8740943 Islet amyloid polypeptide (IAPP), or amylin, is synthesized by beta cells in the islets of Langerhans of the pancreas.
2131 8740943 Lack of islet amyloid polypeptide/amylin-immunoreactivity in urine collected from healthy volunteers after ingestion of a carbohydrate-rich meal.
2132 8740943 Islet amyloid polypeptide (IAPP), or amylin, is synthesized by beta cells in the islets of Langerhans of the pancreas.
2133 8772610 Islet amyloidosis derived from islet amyloid polypeptide is a characteristic feature of diabetes mellitus in CF as well as type II diabetes mellitus.
2134 8781760 Islet amyloid polypeptide (amylin) and insulin are differentially expressed in chronic diabetes induced by streptozotocin in rats.
2135 8781760 Islet amyloid polypeptide (IAPP) is overexpressed relative to insulin under several experimental conditions relevant to diabetes mellitus, including the immediate phase (7 days) following induction of streptozotocin diabetes.
2136 8781760 Immunocytochemistry revealed that IAPP predominantly occurred in insulin cells and to a lesser extent in somatostatin cells at all treatments examined.
2137 8781760 An over-expression of IAPP relative to insulin may therefore be involved in diabetes pathogenesis, contributing to its metabolic perturbations, possibly through the capacity of IAPP to restrain insulin release and action and to form islet amyloid.
2138 8781760 Islet amyloid polypeptide (amylin) and insulin are differentially expressed in chronic diabetes induced by streptozotocin in rats.
2139 8781760 Islet amyloid polypeptide (IAPP) is overexpressed relative to insulin under several experimental conditions relevant to diabetes mellitus, including the immediate phase (7 days) following induction of streptozotocin diabetes.
2140 8781760 Immunocytochemistry revealed that IAPP predominantly occurred in insulin cells and to a lesser extent in somatostatin cells at all treatments examined.
2141 8781760 An over-expression of IAPP relative to insulin may therefore be involved in diabetes pathogenesis, contributing to its metabolic perturbations, possibly through the capacity of IAPP to restrain insulin release and action and to form islet amyloid.
2142 8781760 Islet amyloid polypeptide (amylin) and insulin are differentially expressed in chronic diabetes induced by streptozotocin in rats.
2143 8781760 Islet amyloid polypeptide (IAPP) is overexpressed relative to insulin under several experimental conditions relevant to diabetes mellitus, including the immediate phase (7 days) following induction of streptozotocin diabetes.
2144 8781760 Immunocytochemistry revealed that IAPP predominantly occurred in insulin cells and to a lesser extent in somatostatin cells at all treatments examined.
2145 8781760 An over-expression of IAPP relative to insulin may therefore be involved in diabetes pathogenesis, contributing to its metabolic perturbations, possibly through the capacity of IAPP to restrain insulin release and action and to form islet amyloid.
2146 8795087 Islet amyloid polypeptide (IAPP) secretion from pancreatic islets isolated from non-obese diabetic (NOD) mice.
2147 8795087 The secretion of islet amyloid polypeptide (IAPP) during the course of insulin-dependent diabetes mellitus (IDDM) is essentially unknown.
2148 8795087 If extrapolated to the early prediabetic phase of human IDDM, this would mean that a relative hypersecretion of insulin in relation to IAPP might occur, due to an increased secretory demand for insulin or due to an intrinsic change in the biology of the secretory cells.
2149 8795087 Islet amyloid polypeptide (IAPP) secretion from pancreatic islets isolated from non-obese diabetic (NOD) mice.
2150 8795087 The secretion of islet amyloid polypeptide (IAPP) during the course of insulin-dependent diabetes mellitus (IDDM) is essentially unknown.
2151 8795087 If extrapolated to the early prediabetic phase of human IDDM, this would mean that a relative hypersecretion of insulin in relation to IAPP might occur, due to an increased secretory demand for insulin or due to an intrinsic change in the biology of the secretory cells.
2152 8845588 These include reducing the amyloid precursor protein pool in familial amyloid polyneuropathy by liver transplantation, inhibiting nidus formation in familial Mediterranean fever by the use of colchicine, inhibiting amyloid precursor protein/heparan sulphate interaction in experimental inflammation-associated amyloidosis by the use of novel small molecule anionic sulphates and sulphonates, and the use of new analogues of doxorubicin in light chain amyloidosis to accelerate amyloid removal.
2153 8845588 The potential significance of local and systemic amyloid deposits is discussed in the light of new information on the genetics of Alzheimer's disease, observations made in patients receiving long term dialysis for renal failure, and the potential involvement of amyloid deposits in the pathogenesis of non-insulin-dependent diabetes mellitus.
2154 8845588 These include reducing the amyloid precursor protein pool in familial amyloid polyneuropathy by liver transplantation, inhibiting nidus formation in familial Mediterranean fever by the use of colchicine, inhibiting amyloid precursor protein/heparan sulphate interaction in experimental inflammation-associated amyloidosis by the use of novel small molecule anionic sulphates and sulphonates, and the use of new analogues of doxorubicin in light chain amyloidosis to accelerate amyloid removal.
2155 8845588 The potential significance of local and systemic amyloid deposits is discussed in the light of new information on the genetics of Alzheimer's disease, observations made in patients receiving long term dialysis for renal failure, and the potential involvement of amyloid deposits in the pathogenesis of non-insulin-dependent diabetes mellitus.
2156 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2157 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2158 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2159 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2160 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2161 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2162 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2163 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2164 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2165 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2166 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2167 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2168 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2169 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2170 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2171 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2172 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2173 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2174 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2175 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2176 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2177 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2178 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2179 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2180 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2181 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2182 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2183 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2184 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2185 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2186 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2187 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2188 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2189 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2190 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2191 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2192 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2193 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2194 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2195 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2196 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2197 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2198 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2199 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2200 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2201 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2202 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2203 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2204 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2205 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2206 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2207 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2208 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2209 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2210 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2211 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2212 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2213 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2214 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2215 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2216 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2217 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2218 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2219 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2220 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2221 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2222 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2223 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2224 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2225 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2226 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2227 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2228 8869295 Apolipoprotein E is associated with islet amyloid and other amyloidoses: implications for Alzheimer's disease.
2229 8869295 Apolipoprotein E (ApoE) has recently been proposed as an aetiological factor of Alzheimer's disease (AD): ApoE is co-localized to amyloid plaques and neurofibrillary tangles in the brain and binds to A beta-protein in vitro.
2230 8869295 Islet amyloid is formed from islet amyloid polypeptide (IAPP) in pancreatic islets of 90 per cent of patients with non-insulin-dependent diabetes mellitus (NIDDM) which, like AD, is an age-dependent pathology.
2231 8869295 The relationship of ApoE to islet amyloid and other amyloidoses is largely unknown.
2232 8869295 In this study, ApoE was localized by immunocytochemistry on pancreatic specimens from non-diabetic man, monkey, and mouse, and on amyloid-containing human tissues from pancreas, heart, brain, and intestine.
2233 8869295 All types of amyloid deposits, irrespective of the constituent peptide, site of deposition, or species, showed immunoreactivity for ApoE (ApoE-IR).
2234 8869295 Quantitative morphometry showed that similar proportions of islet amyloid were labelled for IAPP and ApoE in monkey islets.
2235 8869295 These results suggest that the association of ApoE with amyloid is non-specific for AD or to the component peptide of amyloid fibrils.
2236 8869295 If ApoE promotes amyloid formation, its synthesis in pancreatic islets could be important for the initiation or the development of pancreatic amyloid in NIDDM.
2237 8877314 Amylin, amyloid and age-related disease.
2238 8877314 Amylin, a 37-amino acid peptide, is cosecreted with insulin from the beta-cells of the pancreatic islets in normal response to physiological stimuli.
2239 8877314 It is the major protein of islet amyloid, which is usually present in the pancreases of people with non-insulin-dependent (type II) diabetes mellitus.
2240 8877314 Amylin elicits potent effects on carbohydrate metabolism in rodent tissues, causing insulin resistance in skeletal muscle and liver.
2241 8877314 Amylin, amyloid and age-related disease.
2242 8877314 Amylin, a 37-amino acid peptide, is cosecreted with insulin from the beta-cells of the pancreatic islets in normal response to physiological stimuli.
2243 8877314 It is the major protein of islet amyloid, which is usually present in the pancreases of people with non-insulin-dependent (type II) diabetes mellitus.
2244 8877314 Amylin elicits potent effects on carbohydrate metabolism in rodent tissues, causing insulin resistance in skeletal muscle and liver.
2245 8884847 Increased storage and secretion of islet amyloid polypeptide relative to insulin in the spontaneously diabetic GK rat.
2246 8884847 We have investigated whether a possible dysregulation of the storage and function of islet amyloid polypeptide (IAPP) in the endocrine pancreas of 4-month-old spontaneously diabetic Goto-Kakizaki (GK) rats might contribute to the impairment of glucose-induced insulin secretion previously reported in these rats.
2247 8884847 Increased storage and secretion of islet amyloid polypeptide relative to insulin in the spontaneously diabetic GK rat.
2248 8884847 We have investigated whether a possible dysregulation of the storage and function of islet amyloid polypeptide (IAPP) in the endocrine pancreas of 4-month-old spontaneously diabetic Goto-Kakizaki (GK) rats might contribute to the impairment of glucose-induced insulin secretion previously reported in these rats.
2249 8885173 Islet amyloid and islet amyloid polypeptide in cynomolgus macaques (Macaca fascicularis): an animal model of human non-insulin-dependent diabetes mellitus.
2250 8885173 In addition, the cDNA-predicted amino acid sequence for islet amyloid polypeptide (IAPP) of this species was determined.
2251 8885173 Islet amyloid and islet amyloid polypeptide in cynomolgus macaques (Macaca fascicularis): an animal model of human non-insulin-dependent diabetes mellitus.
2252 8885173 In addition, the cDNA-predicted amino acid sequence for islet amyloid polypeptide (IAPP) of this species was determined.
2253 8894481 Islet amyloid polypeptide (IAPP) gives rise to islet amyloid fibrils in NIDDM.
2254 8916142 AApoAII amyloid deposits studied in one senescence-accelerated mouse P1 (SAMP1), congenic mice that have the amyloidogenic apolipoprotein A-II of SAMP1 mice, and AKR mice all reacted with biotinylated 6D12 by formic acid pretreatment, whereas AA amyloid deposits did not react with the antibody.
2255 8916142 The immunoreaction with anti-apolipoprotein A-II for amyloid deposits in senile mice was approximately homogeneous in intensity; on the other hand the reaction with biotinylated 6D12 was irregular in distribution and intensity over the amyloid deposits.
2256 8916142 AApoAII amyloid deposits studied in one senescence-accelerated mouse P1 (SAMP1), congenic mice that have the amyloidogenic apolipoprotein A-II of SAMP1 mice, and AKR mice all reacted with biotinylated 6D12 by formic acid pretreatment, whereas AA amyloid deposits did not react with the antibody.
2257 8916142 The immunoreaction with anti-apolipoprotein A-II for amyloid deposits in senile mice was approximately homogeneous in intensity; on the other hand the reaction with biotinylated 6D12 was irregular in distribution and intensity over the amyloid deposits.
2258 8918714 It has recently been shown that beta 2-microglobulin isolated from amyloid deposits in dialysis patients is modified by advanced glycation (AGE).
2259 8922372 PDX-1 induces insulin and glucokinase gene expressions in alphaTC1 clone 6 cells in the presence of betacellulin.
2260 8922372 Among the two important transcription factors for insulin gene expression, IEF1 is present both in alpha- and beta-cells, but PDX-1/IPF1/STF-1/IDX-1, a homeodomain-containing transcription factor, is present in beta-cells but not in alpha-cells.
2261 8922372 The exogenous expression of PDX-1 in alphaTC1.6 cells alone could induce islet amyloid polypeptide (IAPP) mRNA expression in the cells but not the expression of insulin, glucokinase, or GLUT2 gene.
2262 8922372 However, when betacellulin was added to the medium, the PDX-1-expressing alphaTC1.6 cells, but not the control alphaTC1.6 cells, came to express insulin and glucokinase mRNAs.
2263 8922372 This did not occur with other growth factors such as epidermal growth factor, transforming growth factor alpha, and insulin-like growth factor I.
2264 8922372 GLUT2 mRNA remained undetectable in the PDX-1--expressing alphaTC1.6 cells.
2265 8922372 These observations demonstrate the potency of PDX-1 for the expression of the insulin, glucokinase, and IAPP genes and suggest that certain regulatory factors, which can partially be modified by betacellulin, also contribute to the beta-cell specificity of gene expression.
2266 8922536 Islet amyloid polypeptide/amylin contents in pancreas change with increasing age in genetically obese and diabetic mice.
2267 8922536 To search for a possible relationship between islet amyloid polypeptide (IAPP)/amylin and the pathophysiology of non-insulin-dependent (type 2) diabetes mellitus (NIDDM), we examined the changes in IAPP contents in the pancreata of genetically obese and diabetic mice (C57BL/6J ob/ob and C57BL/KsJ db/db mice).
2268 8922536 Islet amyloid polypeptide/amylin contents in pancreas change with increasing age in genetically obese and diabetic mice.
2269 8922536 To search for a possible relationship between islet amyloid polypeptide (IAPP)/amylin and the pathophysiology of non-insulin-dependent (type 2) diabetes mellitus (NIDDM), we examined the changes in IAPP contents in the pancreata of genetically obese and diabetic mice (C57BL/6J ob/ob and C57BL/KsJ db/db mice).
2270 8997219 Islet amyloid polypeptide and insulin gene expression are regulated in parallel by glucose in vivo in rats.
2271 8997219 Islet amyloid polypeptide (IAPP) is a novel amyloid-forming beta-cell hormone with putative roles in glucose metabolism and non-insulin-dependent diabetes mellitus (NIDDM) pathogenesis.
2272 8997219 Hence, IAPP could, by elevated local concentrations, contribute to amyloid formation and/or affect metabolism unfavorably by inhibition of insulin release and action.
2273 8997219 Islet amyloid polypeptide and insulin gene expression are regulated in parallel by glucose in vivo in rats.
2274 8997219 Islet amyloid polypeptide (IAPP) is a novel amyloid-forming beta-cell hormone with putative roles in glucose metabolism and non-insulin-dependent diabetes mellitus (NIDDM) pathogenesis.
2275 8997219 Hence, IAPP could, by elevated local concentrations, contribute to amyloid formation and/or affect metabolism unfavorably by inhibition of insulin release and action.
2276 8997219 Islet amyloid polypeptide and insulin gene expression are regulated in parallel by glucose in vivo in rats.
2277 8997219 Islet amyloid polypeptide (IAPP) is a novel amyloid-forming beta-cell hormone with putative roles in glucose metabolism and non-insulin-dependent diabetes mellitus (NIDDM) pathogenesis.
2278 8997219 Hence, IAPP could, by elevated local concentrations, contribute to amyloid formation and/or affect metabolism unfavorably by inhibition of insulin release and action.
2279 9037136 Biologically active human islet amyloid polypeptide/amylin in transgenic mice.
2280 9048345 The presence of AGE in beta 2-microglobulin-amyloid fibrils of dialysis-related amyloidosis, one of the characteristic features of which is an accelerated bone resorption around amyloid deposits, was recently demonstrated.
2281 9071971 Differential effect of insulin treatment on islet amyloid polypeptide (amylin) and insulin gene expression in streptozotocin-induced diabetes in rats.
2282 9071971 Islet amyloid polypeptide (IAPP) is a beta cell hormone, which forms islet amyloid in non-insulin-dependent diabetes mellitus and may oppose insulin action and release.
2283 9071971 It is therefore unlikely that insulin will protect against amyloid formation and metabolic perturbations which may arise as a consequence of IAPP overexpression.
2284 9071971 Differential effect of insulin treatment on islet amyloid polypeptide (amylin) and insulin gene expression in streptozotocin-induced diabetes in rats.
2285 9071971 Islet amyloid polypeptide (IAPP) is a beta cell hormone, which forms islet amyloid in non-insulin-dependent diabetes mellitus and may oppose insulin action and release.
2286 9071971 It is therefore unlikely that insulin will protect against amyloid formation and metabolic perturbations which may arise as a consequence of IAPP overexpression.
2287 9071971 Differential effect of insulin treatment on islet amyloid polypeptide (amylin) and insulin gene expression in streptozotocin-induced diabetes in rats.
2288 9071971 Islet amyloid polypeptide (IAPP) is a beta cell hormone, which forms islet amyloid in non-insulin-dependent diabetes mellitus and may oppose insulin action and release.
2289 9071971 It is therefore unlikely that insulin will protect against amyloid formation and metabolic perturbations which may arise as a consequence of IAPP overexpression.
2290 9075800 Elevated islet amyloid pancreatic polypeptide and proinsulin in lean gestational diabetes.
2291 9075800 Recent research indicates that islet amyloid pancreatic polypeptide (IAPP) might have a regulatory effect on beta-cell insulin processing and secretion.
2292 9075800 To study such interaction in more detail, IAPP secretion and kinetics and the serum concentrations of proinsulin were assessed both before and after delivery in lean pregnant women with gestational diabetes mellitus (GDM patients) in comparison to those with normal glucose tolerance (NGT) and to nonpregnant healthy lean (control) and obese insulin-resistant women during oral glucose tolerance tests.
2293 9075800 Pregnancy induced a more marked fourfold increase in apparent total IAPP secretion rate (TIR) (GDM patients, 172 +/- 31 pmol x 1(-1) x 3 h(-1); NGT subjects, 166 +/- 31 pmol x 1(-1) x 3 h(-1); control subjects, 40 +/- 1 pmol 1(-1) x 3 h(-1)) and a twofold rise in its fractional clearance versus control subjects (P < 0.01), whereas in GDM patients a 30% increase of IAPP secretion and a decreased clearance was found, compared with obese insulin-resistant women (TIR, 112 +/- 14 pmol x 1(-1) x 3 h(-1)).
2294 9075800 The increase in IAPP secretion in both pregnant groups was much higher than that of the insulin groups, resulting in a marked change of the IAPP-insulin cosecretion factor when compared with lean or obese nonpregnant women (P < 0.0005).
2295 9075800 After delivery, total IAPP secretion (52.4 +/- 1.5 pmol/l) was completely normalized in the GDM group, as were the clearance rate and the IAPP-insulin cosecretion factor.
2296 9075800 In conclusion, IAPP hypersecretion is characteristic for pregnancy and might partially decrease hyperinsulinemia in pregnancy by inhibiting insulin secretion.
2297 9075800 Elevated islet amyloid pancreatic polypeptide and proinsulin in lean gestational diabetes.
2298 9075800 Recent research indicates that islet amyloid pancreatic polypeptide (IAPP) might have a regulatory effect on beta-cell insulin processing and secretion.
2299 9075800 To study such interaction in more detail, IAPP secretion and kinetics and the serum concentrations of proinsulin were assessed both before and after delivery in lean pregnant women with gestational diabetes mellitus (GDM patients) in comparison to those with normal glucose tolerance (NGT) and to nonpregnant healthy lean (control) and obese insulin-resistant women during oral glucose tolerance tests.
2300 9075800 Pregnancy induced a more marked fourfold increase in apparent total IAPP secretion rate (TIR) (GDM patients, 172 +/- 31 pmol x 1(-1) x 3 h(-1); NGT subjects, 166 +/- 31 pmol x 1(-1) x 3 h(-1); control subjects, 40 +/- 1 pmol 1(-1) x 3 h(-1)) and a twofold rise in its fractional clearance versus control subjects (P < 0.01), whereas in GDM patients a 30% increase of IAPP secretion and a decreased clearance was found, compared with obese insulin-resistant women (TIR, 112 +/- 14 pmol x 1(-1) x 3 h(-1)).
2301 9075800 The increase in IAPP secretion in both pregnant groups was much higher than that of the insulin groups, resulting in a marked change of the IAPP-insulin cosecretion factor when compared with lean or obese nonpregnant women (P < 0.0005).
2302 9075800 After delivery, total IAPP secretion (52.4 +/- 1.5 pmol/l) was completely normalized in the GDM group, as were the clearance rate and the IAPP-insulin cosecretion factor.
2303 9075800 In conclusion, IAPP hypersecretion is characteristic for pregnancy and might partially decrease hyperinsulinemia in pregnancy by inhibiting insulin secretion.
2304 9084962 Amylin (or islet amyloid polypeptide) has been reported to have binding sites in the central nervous system and the kidney and has been shown to activate plasma renin.
2305 9142872 Glucose regulation of islet amyloid polypeptide gene expression in rat pancreatic islets.
2306 9142872 Intracellular pathways by which glucose regulates islet amyloid polypeptide (IAPP) gene expression in pancreatic islets were studied.
2307 9142872 Glucose regulation of islet amyloid polypeptide gene expression in rat pancreatic islets.
2308 9142872 Intracellular pathways by which glucose regulates islet amyloid polypeptide (IAPP) gene expression in pancreatic islets were studied.
2309 9163857 Pancreas-specific protein (PASP), serum amyloid A (SAA), and neopterin (NEOP) in the diagnosis of rejection after simultaneous pancreas and kidney transplantation.
2310 9163857 In this study, serum (S), plasma (P), and urine (U) levels of pancreas-specific protein (P-PASP, U-PASP), neopterin (S-NEOP, U-NEOP), amylase (U-AMYL), and amyloid A (SAA) were measured daily in ten type I diabetic patients following simultaneous pancreas and kidney transplantation (SPK).
2311 9163857 Pancreas-specific protein (PASP), serum amyloid A (SAA), and neopterin (NEOP) in the diagnosis of rejection after simultaneous pancreas and kidney transplantation.
2312 9163857 In this study, serum (S), plasma (P), and urine (U) levels of pancreas-specific protein (P-PASP, U-PASP), neopterin (S-NEOP, U-NEOP), amylase (U-AMYL), and amyloid A (SAA) were measured daily in ten type I diabetic patients following simultaneous pancreas and kidney transplantation (SPK).
2313 9206985 Both in the hamster pancreatic cancer model and in patients, the development of cancer is associated with elevated plasma levels of islet amyloid polypeptide, which may be used as a tumor marker.
2314 9209829 Amylin, calcitonin gene-related peptide, calcitonin, and adrenomedullin: a peptide superfamily.
2315 9209829 Amylin (a 37-amino-acid peptide) is generated from a gene located on chromosome 12 (thought to be an evolutionary duplication of chromosome 11) and shares 46% amino acid sequence homology with CGRP and 20% with human CT.
2316 9209829 Amylin is predominantly located in the beta cells of the islets of the pancreas and may be involved in the pathogenesis of type II diabetes by deposition as amyloid within the pancreas, leading to beta cell destruction.
2317 9209829 Adrenomedullin, a recently discovered 52-amino-acid vasoactive peptide from adrenal tissue, shares 24% homology with CGRP and is also a member of this superfamily of peptides.
2318 9209829 Not only does adrenomedullin (13-52) show 24% amino acid homology with CGRP, it also has a biological activity profile similar to that of CGRP.CGRP, CT, and amylin are related to the insulin gene superfamily of peptides, which may all have diverged from a common ancestral gene during evolution.
2319 9209829 When the crystallographic- and nuclear magnetic resonance-based molecular modeling of the three-dimensional structure of CGRP, CT, amylin, and adrenomedullin peptides and their receptors is available, it will lead to a greater understanding of the involvement of this family of peptides in pathophysiology.
2320 9209829 Together, CGRP, CT, amylin and adrenomedullin have overlapping biological effects owing to their structures and cross-reactivity between receptors.
2321 9209829 I propose that CT, CGRP, adrenomedullin, and amylin belong to a family of G-protein-coupled receptors (an "insulin superfamily" of peptides) and therefore share some of the characteristics of insulin, such as growth factor-like effects, and possible interaction at insulin receptor sites as an antagonist.
2322 9211494 Fasting levels of islet amyloid polypeptide (IAPP), glucagon, and somatostatin were elevated in NIRD and IRD patients.
2323 9212313 Effect of insulin treatment on circulating islet amyloid polypeptide in patients with NIDDM.
2324 9212313 The objective was to evaluate the effect of insulin treatment on circulating islet amyloid polypeptide (IAPP).
2325 9212313 Effect of insulin treatment on circulating islet amyloid polypeptide in patients with NIDDM.
2326 9212313 The objective was to evaluate the effect of insulin treatment on circulating islet amyloid polypeptide (IAPP).
2327 9216085 Human amylin forms fibrillar amyloid between pancreatic islet cells in patients with non-insulin-dependent (type 2) diabetes mellitus.
2328 9221931 Islet amyloid polypeptide and calcitonin gene-related peptide expression are down-regulated in dorsal root ganglia upon sciatic nerve transection.
2329 9221931 Islet amyloid polypeptide (IAPP) is structurally related to calcitonin gene-related peptide (CGRP) and has been implicated in glucose homeostasis and diabetes pathogenesis because it is expressed in insulin cells and forms amyloid in pancreatic islets from type II diabetic patients.
2330 9221931 Islet amyloid polypeptide and calcitonin gene-related peptide expression are down-regulated in dorsal root ganglia upon sciatic nerve transection.
2331 9221931 Islet amyloid polypeptide (IAPP) is structurally related to calcitonin gene-related peptide (CGRP) and has been implicated in glucose homeostasis and diabetes pathogenesis because it is expressed in insulin cells and forms amyloid in pancreatic islets from type II diabetic patients.
2332 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2333 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2334 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2335 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2336 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2337 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2338 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2339 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2340 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2341 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2342 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2343 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2344 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2345 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2346 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2347 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2348 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2349 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2350 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2351 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2352 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2353 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2354 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2355 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2356 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2357 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2358 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2359 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2360 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2361 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2362 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2363 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2364 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2365 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2366 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2367 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2368 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2369 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2370 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2371 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2372 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2373 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2374 9230354 Transgenic overproduction of islet amyloid polypeptide (amylin) is not sufficient for islet amyloid formation.
2375 9230354 Islet amyloid polypeptide forms islet amyloid deposits in non-insulin-dependent diabetes mellitus.
2376 9230354 We have generated transgenic mice which express human islet amyloid polypeptide in their pancreatic beta cells yet do not develop islet amyloid deposits despite producing levels of the amyloidogenic human peptide 2 - 3 fold higher than the native (mouse) peptide.
2377 9230354 To determine whether marked overproduction of islet amyloid polypeptide is a potential cause of islet amyloid formation, we increased expression of this transgene by producing homozygous transgenic animals and by making heterozygous mice experimentally insulin resistant with nicotinic acid.
2378 9230354 Pancreatic content of islet amyloid polypeptide-like immunoreactivity in homozygous and nicotinic acid-treated mice was 2-fold (25 +/- 7 fmol/microg; n = 6) and 3.5-fold (47 +/- 20 fmol/microg; n = 3) higher, respectively, than that of untreated heterozygous animals (13+/-2 fmol/microg; n = 11; both p < 0.05).
2379 9230354 Despite this marked increase in production of islet amyloid polypeptide, neither group of mice developed gross islet amyloid deposits even after 16 months of age.
2380 9230354 We conclude that overproduction of islet amyloid polypeptide, even as produced by extreme insulin resistance, is not in itself sufficient for islet amyloid formation.
2381 9243100 Altered immunoreactivity of islet amyloid polypeptide (IAPP) may reflect major modifications of the IAPP molecule in amyloidogenesis.
2382 9243100 We have developed a mouse monoclonal antibody against rat/mouse islet amyloid polypeptide (IAPP).
2383 9243100 Previous immunohistochemical studies of human pancreatic tissue from individuals with non-insulin-dependent diabetes mellitus (NIDDM) have revealed a paradoxical and unexplained lack of IAPP immunoreactivity in beta cells close to amyloid in spite of the presence of IAPP mRNA.
2384 9243100 Altered immunoreactivity of islet amyloid polypeptide (IAPP) may reflect major modifications of the IAPP molecule in amyloidogenesis.
2385 9243100 We have developed a mouse monoclonal antibody against rat/mouse islet amyloid polypeptide (IAPP).
2386 9243100 Previous immunohistochemical studies of human pancreatic tissue from individuals with non-insulin-dependent diabetes mellitus (NIDDM) have revealed a paradoxical and unexplained lack of IAPP immunoreactivity in beta cells close to amyloid in spite of the presence of IAPP mRNA.
2387 9243100 Altered immunoreactivity of islet amyloid polypeptide (IAPP) may reflect major modifications of the IAPP molecule in amyloidogenesis.
2388 9243100 We have developed a mouse monoclonal antibody against rat/mouse islet amyloid polypeptide (IAPP).
2389 9243100 Previous immunohistochemical studies of human pancreatic tissue from individuals with non-insulin-dependent diabetes mellitus (NIDDM) have revealed a paradoxical and unexplained lack of IAPP immunoreactivity in beta cells close to amyloid in spite of the presence of IAPP mRNA.
2390 9251946 Islet amyloid polypeptide (amylin) does not seem to be directly involved in the development of gestational diabetes mellitus.
2391 9251946 In order to define the islet amyloid polypeptide (IAPP) levels in gestational diabetes mellitus (GDM) and their interrelationship with the insulin levels, we studied (1) the placental RNA from 10 women (5 with GDM and 5 normals) for IAPP expression by Northern blotting and (2) 10 women with GDM during a 100-gram oral glucose tolerance test and compared these with 11 normal women matched for obesity and age.
2392 9251946 Islet amyloid polypeptide (amylin) does not seem to be directly involved in the development of gestational diabetes mellitus.
2393 9251946 In order to define the islet amyloid polypeptide (IAPP) levels in gestational diabetes mellitus (GDM) and their interrelationship with the insulin levels, we studied (1) the placental RNA from 10 women (5 with GDM and 5 normals) for IAPP expression by Northern blotting and (2) 10 women with GDM during a 100-gram oral glucose tolerance test and compared these with 11 normal women matched for obesity and age.
2394 9259404 This may relate to concurrent over-production of islet amyloid polypeptide (IAPP) by the pancreatic beta cells.
2395 9278863 Cloning of mouse islet amyloid polypeptide gene and characterization of its promoter.
2396 9278863 Islet amyloid polypeptide (IAPP) was isolated from islet amyloid deposits in patients with insulinoma and pancreatic islets of non-insulin-dependent diabetes mellitus (NIDDM) and several reports suggested that it may contribute to the development of NIDDM.
2397 9278863 Cloning of mouse islet amyloid polypeptide gene and characterization of its promoter.
2398 9278863 Islet amyloid polypeptide (IAPP) was isolated from islet amyloid deposits in patients with insulinoma and pancreatic islets of non-insulin-dependent diabetes mellitus (NIDDM) and several reports suggested that it may contribute to the development of NIDDM.
2399 9281227 [Amylin/IAPP (islet amyloid polypeptide)--physiology and clinical significance].
2400 9281227 Amylin or islet amyloid polypeptide (IAPP) is the protein component of amyloid deposits commonly seen in pancreatic islets of patients with type 2 diabetes mellitus.
2401 9281227 [Amylin/IAPP (islet amyloid polypeptide)--physiology and clinical significance].
2402 9281227 Amylin or islet amyloid polypeptide (IAPP) is the protein component of amyloid deposits commonly seen in pancreatic islets of patients with type 2 diabetes mellitus.
2403 9282365 Through comparative evaluations of prior histories of the diseases, such as diabetes mellitus, carpal tunnel syndrome, amyloid osteoarthropathy (AOA) and parathyroidectomy, along with large calcification of the nuchal soft tissues on plain films, it was found that DSA, in conjunction with NIS-I, correlated with only AOA (p < 0.05).
2404 9284894 Expression of human islet amyloid polypeptide/amylin impairs insulin secretion in mouse pancreatic beta cells.
2405 9284894 Non-insulin-dependent diabetes mellitus (NIDDM) is associated histopathologically with islet amyloid deposits of which a major component is islet amyloid polypeptide (IAPP)/amylin.
2406 9284894 Expression of human islet amyloid polypeptide/amylin impairs insulin secretion in mouse pancreatic beta cells.
2407 9284894 Non-insulin-dependent diabetes mellitus (NIDDM) is associated histopathologically with islet amyloid deposits of which a major component is islet amyloid polypeptide (IAPP)/amylin.
2408 9353797 More recently, islet amyloid polypeptide or amylin, and adrenomedullin were isolated from human insulinoma and pheochromocytoma respectively, and revealed between 25 and 50% sequence homology with CGRP.
2409 9353797 Based upon the differential biological activity of various CGRP analogs, the CGRP receptors have been classified in two major classes, namely the CGRP1 and CGRP2 subtypes.
2410 9353797 Indeed, modulation of adenylate cyclase activity following receptor activation has been reported for CGRP, amylin and adrenomedullin.
2411 9353797 The cloning of various calcitonin and most recently of CGRP1 and adrenomedullin receptors was reported and revealed structural similarities but also significant differences to other members of the G protein-coupled receptors.
2412 9361089 Islet amyloid polypeptide in Psammomys obesus (sand rat): effects of nutritionally induced diabetes and recovery on low-energy diet or vanadyl sulfate treatment.
2413 9361089 We investigated the possible relationship between islet amyloid polypeptide (IAPP) and the hyperinsulinemia and/or hyperglycemia that is seen in the desert-adapted gerbil Psammomys obesus, when the animal is transferred from a low-energy (LE) diet to a high-energy (HE) diet.
2414 9361089 Islet amyloid polypeptide in Psammomys obesus (sand rat): effects of nutritionally induced diabetes and recovery on low-energy diet or vanadyl sulfate treatment.
2415 9361089 We investigated the possible relationship between islet amyloid polypeptide (IAPP) and the hyperinsulinemia and/or hyperglycemia that is seen in the desert-adapted gerbil Psammomys obesus, when the animal is transferred from a low-energy (LE) diet to a high-energy (HE) diet.
2416 9375734 Amyloid fibrils are derived from different unrelated proteins in the different forms of the disease but share many common properties, including the capacity to bind the normal plasma protein serum amyloid P component (SAP).
2417 9375734 This is the basis for our development of radiolabelled SAP as a nuclear medicine tracer for the diagnosis and quantitative monitoring of amyloid.
2418 9375734 Amyloid fibrils are derived from different unrelated proteins in the different forms of the disease but share many common properties, including the capacity to bind the normal plasma protein serum amyloid P component (SAP).
2419 9375734 This is the basis for our development of radiolabelled SAP as a nuclear medicine tracer for the diagnosis and quantitative monitoring of amyloid.
2420 9389420 Serum sialic acid was confirmed as a marker of the acute-phase response since serum concentrations were significantly related to established acute-phase proteins such as alpha-1 acid glycoprotein (r = 0.82, p < 0.0001).
2421 9389420 There was a significant graded increase of serum sialic acid, alpha-1 acid glycoprotein, IL-6 and urinary albumin excretion rate amongst the three groups, with the lowest levels in non-diabetic subjects, intermediate levels in NIDDM patients without syndrome X and highest levels in NIDDM patients with syndrome X.
2422 9389420 C-reactive protein and cortisol levels were also higher in syndrome X-positive compared to X-negative patients and serum amyloid A was higher in both diabetic groups than in the control group.
2423 9426315 Fibrillar islet amyloid polypeptide (amylin) is internalised by macrophages but resists proteolytic degradation.
2424 9426315 Pancreatic islet amyloid, formed from islet amyloid polypeptide, is found in 96% of Type II (non-insulin-dependent) diabetic patients.
2425 9426315 Fibrils immunoreactive for islet amyloid polypeptide are found in macrophages associated with amyloid, suggesting that deposits can be phagocytosed.
2426 9426315 To determine the mechanism for the recognition and internalisation of fibrils, mouse peritoneal macrophages were cultured with fibrillar synthetic human islet amyloid polypeptide.
2427 9426315 Fibrillar islet amyloid polypeptide (amylin) is internalised by macrophages but resists proteolytic degradation.
2428 9426315 Pancreatic islet amyloid, formed from islet amyloid polypeptide, is found in 96% of Type II (non-insulin-dependent) diabetic patients.
2429 9426315 Fibrils immunoreactive for islet amyloid polypeptide are found in macrophages associated with amyloid, suggesting that deposits can be phagocytosed.
2430 9426315 To determine the mechanism for the recognition and internalisation of fibrils, mouse peritoneal macrophages were cultured with fibrillar synthetic human islet amyloid polypeptide.
2431 9426315 Fibrillar islet amyloid polypeptide (amylin) is internalised by macrophages but resists proteolytic degradation.
2432 9426315 Pancreatic islet amyloid, formed from islet amyloid polypeptide, is found in 96% of Type II (non-insulin-dependent) diabetic patients.
2433 9426315 Fibrils immunoreactive for islet amyloid polypeptide are found in macrophages associated with amyloid, suggesting that deposits can be phagocytosed.
2434 9426315 To determine the mechanism for the recognition and internalisation of fibrils, mouse peritoneal macrophages were cultured with fibrillar synthetic human islet amyloid polypeptide.
2435 9426315 Fibrillar islet amyloid polypeptide (amylin) is internalised by macrophages but resists proteolytic degradation.
2436 9426315 Pancreatic islet amyloid, formed from islet amyloid polypeptide, is found in 96% of Type II (non-insulin-dependent) diabetic patients.
2437 9426315 Fibrils immunoreactive for islet amyloid polypeptide are found in macrophages associated with amyloid, suggesting that deposits can be phagocytosed.
2438 9426315 To determine the mechanism for the recognition and internalisation of fibrils, mouse peritoneal macrophages were cultured with fibrillar synthetic human islet amyloid polypeptide.
2439 9437230 No correlation between insulin and islet amyloid polypeptide after stimulation with glucagon-like peptide-1 in type 2 diabetes.
2440 9451476 Islet cells containing immunoreactive insulin and islet amyloid polypeptide were plentiful, while those staining positive for glucagon and somatostatin were scarce in these grafts.
2441 9492286 Contribution of advanced glycosylation to the amyloidogenicity of islet amyloid polypeptide.
2442 9492286 The formation of amyloid within the islets of Langerhans is associated with the development of type II diabetes mellitus and occurs by the aggregation and insolubilization of islet amyloid polypeptide (IAPP).
2443 9492286 Contribution of advanced glycosylation to the amyloidogenicity of islet amyloid polypeptide.
2444 9492286 The formation of amyloid within the islets of Langerhans is associated with the development of type II diabetes mellitus and occurs by the aggregation and insolubilization of islet amyloid polypeptide (IAPP).
2445 9506786 In vitro insulin secretion and the response to glucose challenge of APPH and APA encapsulated islets were comparable to free islets.
2446 9560308 A novel assay in vitro of human islet amyloid polypeptide amyloidogenesis and effects of insulin secretory vesicle peptides on amyloid formation.
2447 9560308 Human islet amyloid polypeptide (IAPP) is a 37-residue peptide that is co-secreted with insulin by the beta-cell and might be involved in the pathogenesis of non-insulin-dependent diabetes mellitus.
2448 9560308 Because insulin resistance or hyperglycaemia increase the IAPP-to-insulin ratio, increased intracellular IAPP compared with insulin expression in genetically predisposed individuals might contribute to intracellular amyloid formation, beta-cell death and the genesis of non-insulin-dependent diabetes mellitus.
2449 9560308 A novel assay in vitro of human islet amyloid polypeptide amyloidogenesis and effects of insulin secretory vesicle peptides on amyloid formation.
2450 9560308 Human islet amyloid polypeptide (IAPP) is a 37-residue peptide that is co-secreted with insulin by the beta-cell and might be involved in the pathogenesis of non-insulin-dependent diabetes mellitus.
2451 9560308 Because insulin resistance or hyperglycaemia increase the IAPP-to-insulin ratio, increased intracellular IAPP compared with insulin expression in genetically predisposed individuals might contribute to intracellular amyloid formation, beta-cell death and the genesis of non-insulin-dependent diabetes mellitus.
2452 9560308 A novel assay in vitro of human islet amyloid polypeptide amyloidogenesis and effects of insulin secretory vesicle peptides on amyloid formation.
2453 9560308 Human islet amyloid polypeptide (IAPP) is a 37-residue peptide that is co-secreted with insulin by the beta-cell and might be involved in the pathogenesis of non-insulin-dependent diabetes mellitus.
2454 9560308 Because insulin resistance or hyperglycaemia increase the IAPP-to-insulin ratio, increased intracellular IAPP compared with insulin expression in genetically predisposed individuals might contribute to intracellular amyloid formation, beta-cell death and the genesis of non-insulin-dependent diabetes mellitus.
2455 9568695 Sulfate content and specific glycosaminoglycan backbone of perlecan are critical for perlecan's enhancement of islet amyloid polypeptide (amylin) fibril formation.
2456 9568695 Previous studies have also revealed the presence of the specific heparan sulfate proteoglycan, perlecan, colocalized to islet amyloid deposits, similar to perlecan's known involvement with other amyloid proteins.
2457 9568695 In the present study, perlecan purified from the Engelbreth-Holm-Swarm (EHS) tumor was used to define perlecan's interactions with amylin (i.e., islet amyloid polypeptide) and its effects on amylin fibril formation.
2458 9568695 Sulfate content and specific glycosaminoglycan backbone of perlecan are critical for perlecan's enhancement of islet amyloid polypeptide (amylin) fibril formation.
2459 9568695 Previous studies have also revealed the presence of the specific heparan sulfate proteoglycan, perlecan, colocalized to islet amyloid deposits, similar to perlecan's known involvement with other amyloid proteins.
2460 9568695 In the present study, perlecan purified from the Engelbreth-Holm-Swarm (EHS) tumor was used to define perlecan's interactions with amylin (i.e., islet amyloid polypeptide) and its effects on amylin fibril formation.
2461 9568695 Sulfate content and specific glycosaminoglycan backbone of perlecan are critical for perlecan's enhancement of islet amyloid polypeptide (amylin) fibril formation.
2462 9568695 Previous studies have also revealed the presence of the specific heparan sulfate proteoglycan, perlecan, colocalized to islet amyloid deposits, similar to perlecan's known involvement with other amyloid proteins.
2463 9568695 In the present study, perlecan purified from the Engelbreth-Holm-Swarm (EHS) tumor was used to define perlecan's interactions with amylin (i.e., islet amyloid polypeptide) and its effects on amylin fibril formation.
2464 9568698 Its major component is the normal beta-cell secretory product amylin, or islet amyloid polypeptide (IAPP).
2465 9568698 To determine whether increased or disproportionate release of amylin may explain the propensity for amyloid deposition in type 2 diabetes, we measured plasma amylin-like immunoreactivity (ALI) and immunoreactive insulin (IRI) release in response to an oral glucose load in 94 Japanese-American subjects with normal glucose tolerance (NGT; n=56), impaired glucose tolerance (IGT; n=10), and type 2 diabetes (n=28) as defined by World Health Organization criteria.
2466 9568698 Its major component is the normal beta-cell secretory product amylin, or islet amyloid polypeptide (IAPP).
2467 9568698 To determine whether increased or disproportionate release of amylin may explain the propensity for amyloid deposition in type 2 diabetes, we measured plasma amylin-like immunoreactivity (ALI) and immunoreactive insulin (IRI) release in response to an oral glucose load in 94 Japanese-American subjects with normal glucose tolerance (NGT; n=56), impaired glucose tolerance (IGT; n=10), and type 2 diabetes (n=28) as defined by World Health Organization criteria.
2468 9584121 These cells express some beta cell markers, such as islet amyloid polypeptide and Pdx1, but lack other definitive beta cell markers including glucose transporter 2 and Nkx6.1.
2469 9588445 Islet amyloid-associated diabetes in obese A(vy)/a mice expressing human islet amyloid polypeptide.
2470 9588445 We have previously shown that hemizygous transgenic mice expressing human islet amyloid polypeptide (hIAPP) in pancreatic beta-cells have no diabetic phenotype, whereas in the homozygous state, they developed severe, early-onset hyperglycemia associated with impaired insulin secretion and beta-cell death.
2471 9588445 We conclude that in transgenic mice expressing hIAPP, insulin resistance can induce overt, slow-onset diabetes associated with islet amyloid and decreased beta-cell mass.
2472 9588445 Islet amyloid-associated diabetes in obese A(vy)/a mice expressing human islet amyloid polypeptide.
2473 9588445 We have previously shown that hemizygous transgenic mice expressing human islet amyloid polypeptide (hIAPP) in pancreatic beta-cells have no diabetic phenotype, whereas in the homozygous state, they developed severe, early-onset hyperglycemia associated with impaired insulin secretion and beta-cell death.
2474 9588445 We conclude that in transgenic mice expressing hIAPP, insulin resistance can induce overt, slow-onset diabetes associated with islet amyloid and decreased beta-cell mass.
2475 9588445 Islet amyloid-associated diabetes in obese A(vy)/a mice expressing human islet amyloid polypeptide.
2476 9588445 We have previously shown that hemizygous transgenic mice expressing human islet amyloid polypeptide (hIAPP) in pancreatic beta-cells have no diabetic phenotype, whereas in the homozygous state, they developed severe, early-onset hyperglycemia associated with impaired insulin secretion and beta-cell death.
2477 9588445 We conclude that in transgenic mice expressing hIAPP, insulin resistance can induce overt, slow-onset diabetes associated with islet amyloid and decreased beta-cell mass.
2478 9633536 Formation of amylin-containing islet amyloid deposits may contribute to the progressive deterioration of beta cell function in non-insulin-dependent diabetes mellitus.
2479 9637677 These mice develop diabetes with age, and we show that IPF1/PDX1 is required for maintaining the beta cell identity by positively regulating insulin and islet amyloid polypeptide expression and by repressing glucagon expression.
2480 9637677 We also provide evidence that IPF1/PDX1 regulates the expression of Glut2 in a dosage-dependent manner suggesting that lowered IPF1/PDX1 activity may contribute to the development of type II diabetes by causing impaired expression of both Glut2 and insulin.
2481 9715376 The fact that both insulin resistance and impaired insulin release have been found to precede and predict NIDDM in prospective studies may be in part a reflection of just such relatedness. 4) Direct genetic analysis is effective in rarer forms of glucose intolerance (MODY, mitochondrial mutations, etc.) but encounters serious difficulties with typical late-onset NIDDM.
2482 9715376 Incidentally, any defect in insulin secretion, whether in normoglycemic or hyperglycemic persons, could be due to other factors than primary beta-cell dysfunction: amyloid deposits in the pancreas (126), changes in insulin secretagogues (amylin, GLP-1, GIP, galanin) (127-130), early intrauterine malnutrition (131).
2483 9777946 In this study, we examined the immunohistochemical localization of AGEs, amyloid beta protein (A beta), apolipoprotein E (ApoE), and tau protein in senile plaques, neurofibrillary tangles (NFTs), and cerebral amyloid angiopathy (CAA) in Alzheimer's disease and other neurodegenerative diseases (progressive supranuclear palsy, Pick's disease, and Guamanian amyotrophic lateral sclerosis/Parkinsonism-dementia complex).
2484 9794114 Type II (non-insulin-dependent) diabetes mellitus is associated with increased blood concentrations of markers of the acute-phase response, including sialic acid, alpha-1 acid glycoprotein, serum amyloid A, C-reactive protein and cortisol, and the main cytokine mediator of the response, interleukin-6.
2485 9833947 Transgenic overexpression of human islet amyloid polypeptide inhibits insulin secretion and glucose elimination after gastric glucose gavage in mice.
2486 9833947 Islet amyloid polypeptide (IAPP) is synthesized in islet beta cells and has been implicated in diabetes pathogenesis because it can inhibit insulin secretion and action and form fibrils leading to islet amyloidosis.
2487 9833947 Transgenic overexpression of human islet amyloid polypeptide inhibits insulin secretion and glucose elimination after gastric glucose gavage in mice.
2488 9833947 Islet amyloid polypeptide (IAPP) is synthesized in islet beta cells and has been implicated in diabetes pathogenesis because it can inhibit insulin secretion and action and form fibrils leading to islet amyloidosis.
2489 9849972 Here we review our studies on the embryonic islet expression of islet amyloid polypeptide (IAPP) and the PP-fold peptides pancreatic polypeptide (PP), peptide YY (PYY) and neuropeptide Y (NPY).
2490 9849972 As development proceeds, the insulin/IAPP phenotype is segregated from that of PYY/glucagon; with the formation of islet-like structures, insulin/IAPP-expressing cells primarily occupy their central portions, while PYY/glucagon-expressing cells are found in their periphery.
2491 9849972 At the time of formation of islet-like structures, expression of NPY is induced in the insulin/IAPP-containing cells.
2492 9849972 Whereas NPY-expression ceases at birth, PYY is constitutively expressed in non-beta-cells in the mature rat.
2493 9862387 Differing haemodynamic and catecholamine responses to exercise in three groups with peripheralautonomic dysfunction: insulin-dependent diabetes mellitus, familial amyloid polyneuropathy and pure autonomic failure.
2494 9862387 The haemodynamic and catecholamine responses to supine exercise, and the effect on standing blood pressure (BP), were studied in three groups with peripheral autonomic dysfunction; insulin-dependent diabetes mellitus (IDDM), familial amyloid polyneuropathy (FAP) and pure autonomic failure (PAF).
2495 9862387 With exercise, BP increased in controls, was unchanged in IDDM and FAP, and fell in PAF.
2496 9862387 Heart rate (HR) increased more in controls than IDDM, FAP or PAF.
2497 9862387 Cardiac index (CI) increased less in IDDM than controls, FAP or PAF.
2498 9862387 Systemic vascular resistance (SVR) fell similarly in controls and IDDM, with a greater fall in FAP and PAF.
2499 9862387 On standing, BP was unchanged in controls; BP fell pre- and post-exercise in IDDM, FAP and PAF, with a significantly greater fall post-exercise in FAP and PAF.
2500 9862387 Differing haemodynamic and catecholamine responses to exercise in three groups with peripheralautonomic dysfunction: insulin-dependent diabetes mellitus, familial amyloid polyneuropathy and pure autonomic failure.
2501 9862387 The haemodynamic and catecholamine responses to supine exercise, and the effect on standing blood pressure (BP), were studied in three groups with peripheral autonomic dysfunction; insulin-dependent diabetes mellitus (IDDM), familial amyloid polyneuropathy (FAP) and pure autonomic failure (PAF).
2502 9862387 With exercise, BP increased in controls, was unchanged in IDDM and FAP, and fell in PAF.
2503 9862387 Heart rate (HR) increased more in controls than IDDM, FAP or PAF.
2504 9862387 Cardiac index (CI) increased less in IDDM than controls, FAP or PAF.
2505 9862387 Systemic vascular resistance (SVR) fell similarly in controls and IDDM, with a greater fall in FAP and PAF.
2506 9862387 On standing, BP was unchanged in controls; BP fell pre- and post-exercise in IDDM, FAP and PAF, with a significantly greater fall post-exercise in FAP and PAF.
2507 10026261 Amylin, also known as islet amyloid polypeptide (IAPP), is the major protein component of the fibril deposits found in the pancreas of individuals with type II diabetes.
2508 10036582 Islet amyloid formed from islet amyloid polypeptide (IAPP, amylin) is found in spontaneously diabetic monkeys and cats.
2509 10036583 Quantitative immunohistochemical analysis of islet amyloid polypeptide (IAPP) in normal, impaired glucose tolerant, and diabetic cats.
2510 10036583 Islet amyloid polypeptide (IAPP, "amylin") has been proposed as having important roles in the pathogenesis of type 2 diabetes mellitus via its biological activity and by forming islet amyloid.
2511 10036583 The study provides evidence that an increased beta cell storage of IAPP independent of insulin may be an important factor in the early phase of the development of islet amyloid in this form of diabetes.
2512 10036583 Quantitative immunohistochemical analysis of islet amyloid polypeptide (IAPP) in normal, impaired glucose tolerant, and diabetic cats.
2513 10036583 Islet amyloid polypeptide (IAPP, "amylin") has been proposed as having important roles in the pathogenesis of type 2 diabetes mellitus via its biological activity and by forming islet amyloid.
2514 10036583 The study provides evidence that an increased beta cell storage of IAPP independent of insulin may be an important factor in the early phase of the development of islet amyloid in this form of diabetes.
2515 10036583 Quantitative immunohistochemical analysis of islet amyloid polypeptide (IAPP) in normal, impaired glucose tolerant, and diabetic cats.
2516 10036583 Islet amyloid polypeptide (IAPP, "amylin") has been proposed as having important roles in the pathogenesis of type 2 diabetes mellitus via its biological activity and by forming islet amyloid.
2517 10036583 The study provides evidence that an increased beta cell storage of IAPP independent of insulin may be an important factor in the early phase of the development of islet amyloid in this form of diabetes.
2518 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2519 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2520 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2521 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2522 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2523 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2524 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2525 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2526 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2527 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2528 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2529 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2530 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2531 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2532 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2533 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2534 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2535 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2536 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2537 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2538 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2539 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2540 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2541 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2542 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2543 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2544 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2545 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2546 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2547 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2548 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2549 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2550 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2551 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2552 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2553 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2554 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2555 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2556 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2557 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2558 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2559 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2560 10064099 Prolonged exposure of pancreatic beta cells to raised glucose concentrations results in increased cellular content of islet amyloid polypeptide precursors.
2561 10064099 Most non-insulin dependent diabetic patients have amyloid deposits in their pancreatic islets.
2562 10064099 It is not known whether chronic hyperglycaemia contributes to the formation of amyloid fibrils from the islet amyloid polypeptide that is produced by the pancreatic beta cells.
2563 10064099 Since islet amyloid exhibits islet amyloid polypeptide precursors immunoreactivity, we examined whether sustained in vitro exposure to raised glucose increases the abundance of these precursors in human beta cells.
2564 10064099 After 6 days stimulation with 20 mmol/l glucose the cellular content of insulin but not islet amyloid polypeptide was decreased leading to an increase in the ratio of the latter over insulin (3.0 +/- 0.6 vs 1.8 +/- 0.3 after 6 mmol/l glucose culture, p < 0.05).
2565 10064099 Western blot analysis of cellular islet amyloid polypeptide after prolonged exposure to high glucose indicated the presence of higher proportions of its precursor- and intermediate forms.
2566 10064099 We concluded that prolonged in vitro exposure of beta cells to raised glucose concentrations increases the relative proportion of islet amyloid polypeptide over insulin, as well as of its precursors over the mature form of islet amyloid polypeptide.
2567 10078548 The mechanism of islet amyloid polypeptide toxicity is membrane disruption by intermediate-sized toxic amyloid particles.
2568 10078548 Islet amyloid is derived from the locally expressed protein islet amyloid polypeptide (IAPP).
2569 10078548 The mechanism of islet amyloid polypeptide toxicity is membrane disruption by intermediate-sized toxic amyloid particles.
2570 10078548 Islet amyloid is derived from the locally expressed protein islet amyloid polypeptide (IAPP).
2571 10078555 Only four of those genes had been shown previously to be expressed at higher levels in beta-cells (insulin, islet amyloid polypeptide, neuronatin, and protein kinase A regulatory subunit [RIalpha]).
2572 10191146 Conformational transitions of islet amyloid polypeptide (IAPP) in amyloid formation in vitro.
2573 10191146 Pancreatic amyloidosis is characterized by the deposition of amyloid consisting of islet amyloid polypeptide (IAPP).
2574 10191146 Conformational transitions of islet amyloid polypeptide (IAPP) in amyloid formation in vitro.
2575 10191146 Pancreatic amyloidosis is characterized by the deposition of amyloid consisting of islet amyloid polypeptide (IAPP).
2576 10206436 Differences in amyloid deposition in islets of transgenic mice expressing human islet amyloid polypeptide versus human islets implanted into nude mice.
2577 10206436 Islet amyloid polypeptide (IAPP)-derived amyloid is frequently deposited in the islets of Langerhans in patients with chronic non-insulin-dependent diabetes mellitus (NIDDM).
2578 10206436 Differences in amyloid deposition in islets of transgenic mice expressing human islet amyloid polypeptide versus human islets implanted into nude mice.
2579 10206436 Islet amyloid polypeptide (IAPP)-derived amyloid is frequently deposited in the islets of Langerhans in patients with chronic non-insulin-dependent diabetes mellitus (NIDDM).
2580 10233846 Intracellular amyloidogenesis by human islet amyloid polypeptide induces apoptosis in COS-1 cells.
2581 10233846 Human islet amyloid polypeptide (hIAPP) is co-secreted with insulin from pancreatic islet beta cells.
2582 10233846 Intracellular amyloidogenesis by human islet amyloid polypeptide induces apoptosis in COS-1 cells.
2583 10233846 Human islet amyloid polypeptide (hIAPP) is co-secreted with insulin from pancreatic islet beta cells.
2584 10334297 It has as its unique component the islet beta-cell peptide islet amyloid polypeptide (IAPP), or amylin, which is cosecreted with insulin.
2585 10334297 In addition to this unique component, islet amyloid contains other proteins, such as apolipoprotein E and the heparan sulfate proteoglycan perlecan, which are typically observed in other forms of generalized and localized amyloid.
2586 10334297 It has as its unique component the islet beta-cell peptide islet amyloid polypeptide (IAPP), or amylin, which is cosecreted with insulin.
2587 10334297 In addition to this unique component, islet amyloid contains other proteins, such as apolipoprotein E and the heparan sulfate proteoglycan perlecan, which are typically observed in other forms of generalized and localized amyloid.
2588 10337452 With the respect to the trophic effect of amyloid deposits in the pancreatic islets and to a hypothetic effect of amylin increasing insulin resistance, the present results emphasize the particular usefulness of metformin in the pharmacological treatment of NIDDM.
2589 10341286 Despite co-secretion from islets the relative amounts of IAPP and insulin may vary.
2590 10341286 Since IAPP was first described as the major peptide constituent of amyloid in the islets of Langerhans of subjects with type 2 diabetes and insulinoma, many studies have been devoted to investigating the role of IAPP in formation of amyloid deposits and in diabetes pathogenesis.
2591 10341286 However, there is growing evidence for IAPP as an active islet hormone in addition to insulin and glucagon in glucose metabolic control.
2592 10341286 An inhibitory effect is seen by IAPP on gastric emptying, glycogen synthesis in skeletal muscle, islet insulin and glucagon secretion, whereas a stimulatory effect is seen on hepatic gluconeogenesis.
2593 10362543 Presenilin 2 was identified in primitive islet and duct cells of human foetal pancreas and in proliferating exocrine duct cells in human pancreatitis but not found in islet amyloid deposits in Type 2 diabetic subjects.
2594 10362543 Oral glucose tolerance tests on subjects with the presenilin 2 Met239Val mutation unaffected by early onset familial Alzheimer's disease (mean age 35 years) and on their first-degree relatives without the mutation demonstrated no evidence of glucose intolerance or increased proinsulin secretion.
2595 10452964 The rate of Amadori product formation in apoE in vitro was similar to that for albumin and apolipoproteins A-I and A-II.
2596 10452964 In contrast, glycation had no effect on the interaction of apoE with amyloid beta-peptide.
2597 10480534 Pancreatic amyloid proteins and their relation to clinical diabetes, with special reference to serum insulin secretion.
2598 10495105 Pituitary adenylate cyclase-activating polypeptide and islet amyloid polypeptide in primary sensory neurons: functional implications from plasticity in expression on nerve injury and inflammation.
2599 10495105 In this article, we introduce two novel members of the sensory neuropeptide family: pituitary adenylate cyclase-activating polypeptide (PACAP) and islet amyloid polypeptide (IAPP).
2600 10495105 Whereas PACAP, a vasoactive intestinal polypeptide-resembling peptide, predominantly occurs in neuronal elements, IAPP, which is structurally related to calcitonin gene-related peptide, is most widely known as a pancreatic beta-cell peptide; as such, it has been recognized as a constituent of amyloid deposits in type 2 diabetes.
2601 10495105 Pituitary adenylate cyclase-activating polypeptide and islet amyloid polypeptide in primary sensory neurons: functional implications from plasticity in expression on nerve injury and inflammation.
2602 10495105 In this article, we introduce two novel members of the sensory neuropeptide family: pituitary adenylate cyclase-activating polypeptide (PACAP) and islet amyloid polypeptide (IAPP).
2603 10495105 Whereas PACAP, a vasoactive intestinal polypeptide-resembling peptide, predominantly occurs in neuronal elements, IAPP, which is structurally related to calcitonin gene-related peptide, is most widely known as a pancreatic beta-cell peptide; as such, it has been recognized as a constituent of amyloid deposits in type 2 diabetes.
2604 10495105 Pituitary adenylate cyclase-activating polypeptide and islet amyloid polypeptide in primary sensory neurons: functional implications from plasticity in expression on nerve injury and inflammation.
2605 10495105 In this article, we introduce two novel members of the sensory neuropeptide family: pituitary adenylate cyclase-activating polypeptide (PACAP) and islet amyloid polypeptide (IAPP).
2606 10495105 Whereas PACAP, a vasoactive intestinal polypeptide-resembling peptide, predominantly occurs in neuronal elements, IAPP, which is structurally related to calcitonin gene-related peptide, is most widely known as a pancreatic beta-cell peptide; as such, it has been recognized as a constituent of amyloid deposits in type 2 diabetes.
2607 10512360 Two novel immortal pancreatic beta-cell lines expressing and secreting human islet amyloid polypeptide do not spontaneously develop islet amyloid.
2608 10512360 Type 2 diabetes is characterized by islet amyloid deposits, which are primarily composed of the amyloidogenic human form of islet amyloid polypeptide (IAPP, amylin).
2609 10512360 The mechanism of islet amyloido-genesis is not known, but other products (e.g., apolipoprotein E and perlecan) contained within islet amyloid may be necessary.
2610 10512360 Two novel immortal pancreatic beta-cell lines expressing and secreting human islet amyloid polypeptide do not spontaneously develop islet amyloid.
2611 10512360 Type 2 diabetes is characterized by islet amyloid deposits, which are primarily composed of the amyloidogenic human form of islet amyloid polypeptide (IAPP, amylin).
2612 10512360 The mechanism of islet amyloido-genesis is not known, but other products (e.g., apolipoprotein E and perlecan) contained within islet amyloid may be necessary.
2613 10512360 Two novel immortal pancreatic beta-cell lines expressing and secreting human islet amyloid polypeptide do not spontaneously develop islet amyloid.
2614 10512360 Type 2 diabetes is characterized by islet amyloid deposits, which are primarily composed of the amyloidogenic human form of islet amyloid polypeptide (IAPP, amylin).
2615 10512360 The mechanism of islet amyloido-genesis is not known, but other products (e.g., apolipoprotein E and perlecan) contained within islet amyloid may be necessary.
2616 10517745 C-Reactive protein, serum amyloid A protein, and coronary events.
2617 10554571 Last observations suggest the new potential pathogenic factors such as: cellular membrane ATP-ase and structure dysfunction changes, lipotoxicity on pancreatic beta cell, increase secretion of islet amyloid polypeptide and genetic defects.
2618 10656810 Identification of a penta- and hexapeptide of islet amyloid polypeptide (IAPP) with amyloidogenic and cytotoxic properties.
2619 10656810 Pancreatic amyloid is formed by the aggregation of islet amyloid polypeptide (hIAPP or amylin), which is a 37-residue peptide.
2620 10656810 Identification of a penta- and hexapeptide of islet amyloid polypeptide (IAPP) with amyloidogenic and cytotoxic properties.
2621 10656810 Pancreatic amyloid is formed by the aggregation of islet amyloid polypeptide (hIAPP or amylin), which is a 37-residue peptide.
2622 10669788 Aggregation of an amyloidogenic fragment of human islet amyloid polypeptide.
2623 10669788 Native human islet amyloid polypeptide (hIAPP) has been identified as the major component of amyloid plaques found in the pancreatic islets of Langerhans of persons affected by type 2 diabetes mellitus.
2624 10669788 Aggregation of an amyloidogenic fragment of human islet amyloid polypeptide.
2625 10669788 Native human islet amyloid polypeptide (hIAPP) has been identified as the major component of amyloid plaques found in the pancreatic islets of Langerhans of persons affected by type 2 diabetes mellitus.
2626 10751203 Islet amyloid polypeptide (amylin)-deficient mice develop a more severe form of alloxan-induced diabetes.
2627 10751203 To examine whether islet amyloid polypeptide (IAPP), other than through amyloid formation, may be of importance in diabetes pathogenesis, IAPP-deficient mice (IAPP(-/-)) were challenged with alloxan (day 0).
2628 10751203 Islet amyloid polypeptide (amylin)-deficient mice develop a more severe form of alloxan-induced diabetes.
2629 10751203 To examine whether islet amyloid polypeptide (IAPP), other than through amyloid formation, may be of importance in diabetes pathogenesis, IAPP-deficient mice (IAPP(-/-)) were challenged with alloxan (day 0).
2630 10831234 Islet amyloid polypeptide (amylin) modulates chylomicron metabolism in rats.
2631 10831234 Amylin is a pancreatic peptide that has been shown to be able to induce a state of peripheral insulin resistance.
2632 10831234 Amylin can reduce chylomicron uptake, most probably by regulating lipoprotein receptors either directly, or via modulation of insulin activity.
2633 10853552 The carpal tunnel syndrome is frequent in hemodialysis patients, and surgery gives the opportunity to look for beta-2-microglobulin amyloid deposits.
2634 10889799 Excess insulin secretion may eventually reduce beta-cell function due to amyloid deposition, leading to raised blood glucose and further deterioration of beta-cell function and insulin sensitivity via glucose toxicity.
2635 10903851 We have previously demonstrated that transthyretin amyloid fibrils contain four constituent protofilaments packed in a square array.
2636 10903851 Here, we have used cross-correlation techniques to average electron microscopy images of multiple cross-sections in order to reconstruct the sub-structure of ex vivo amyloid fibrils composed of amyloid A protein, monoclonal immunoglobulin lambda light chain, Leu60Arg variant apolipoprotein AI, and Asp67His variant lysozyme, as well as synthetic fibrils derived from a ten-residue peptide corresponding to the A-strand of transthyretin.
2637 10903851 We have previously demonstrated that transthyretin amyloid fibrils contain four constituent protofilaments packed in a square array.
2638 10903851 Here, we have used cross-correlation techniques to average electron microscopy images of multiple cross-sections in order to reconstruct the sub-structure of ex vivo amyloid fibrils composed of amyloid A protein, monoclonal immunoglobulin lambda light chain, Leu60Arg variant apolipoprotein AI, and Asp67His variant lysozyme, as well as synthetic fibrils derived from a ten-residue peptide corresponding to the A-strand of transthyretin.
2639 10907112 Islet amyloid polypeptide in the islets of Langerhans: friend or foe?
2640 10907112 Islet amyloid polypeptide (IAPP), or amylin, was originally discovered as the constituent peptide in amyloid occurring in human insulinomas and in pancreatic islets in human subjects with Type II (non-insulin-dependent) diabetes mellitus.
2641 10907112 Islet amyloid polypeptide in the islets of Langerhans: friend or foe?
2642 10907112 Islet amyloid polypeptide (IAPP), or amylin, was originally discovered as the constituent peptide in amyloid occurring in human insulinomas and in pancreatic islets in human subjects with Type II (non-insulin-dependent) diabetes mellitus.
2643 10931181 Processing of synthetic pro-islet amyloid polypeptide (proIAPP) 'amylin' by recombinant prohormone convertase enzymes, PC2 and PC3, in vitro.
2644 10931181 Islet amyloid polypeptide (IAPP), amylin, is the constituent peptide of pancreatic islet amyloid deposits which form in islets of Type 2 diabetic subjects.
2645 10931181 To determine the enzymes responsible for proteolysis and their activity at the potential cleavage sites, synthetic human proIAPP was incubated (0.5-16 h) with recombinant prohormone convertases, PC2 or PC3 at appropriate conditions of calcium and pH.
2646 10931181 PC3 was active initially at the N-terminal-IAPP junction and later at the C-terminus, whereas initial PC2 activity was at the IAPP-C-terminal junction.
2647 10931181 There was no evidence for substantial competition for the processing enzymes when the combined substrates proinsulin and proIAPP were incubated with both PC2 and PC3.
2648 10931181 As proinsulin cleavage is sequential in vivo (PC3 active at the B-chain-C-peptide junction, followed by PC2 at A chain-C-peptide junction), these data suggest that proteolysis of proIAPP and proinsulin is coincident in secretory granules and increased proinsulin secretion in diabetes could be accompanied by increased production of proIAPP.
2649 10931181 Processing of synthetic pro-islet amyloid polypeptide (proIAPP) 'amylin' by recombinant prohormone convertase enzymes, PC2 and PC3, in vitro.
2650 10931181 Islet amyloid polypeptide (IAPP), amylin, is the constituent peptide of pancreatic islet amyloid deposits which form in islets of Type 2 diabetic subjects.
2651 10931181 To determine the enzymes responsible for proteolysis and their activity at the potential cleavage sites, synthetic human proIAPP was incubated (0.5-16 h) with recombinant prohormone convertases, PC2 or PC3 at appropriate conditions of calcium and pH.
2652 10931181 PC3 was active initially at the N-terminal-IAPP junction and later at the C-terminus, whereas initial PC2 activity was at the IAPP-C-terminal junction.
2653 10931181 There was no evidence for substantial competition for the processing enzymes when the combined substrates proinsulin and proIAPP were incubated with both PC2 and PC3.
2654 10931181 As proinsulin cleavage is sequential in vivo (PC3 active at the B-chain-C-peptide junction, followed by PC2 at A chain-C-peptide junction), these data suggest that proteolysis of proIAPP and proinsulin is coincident in secretory granules and increased proinsulin secretion in diabetes could be accompanied by increased production of proIAPP.
2655 10960722 Parallel changes of proinsulin and islet amyloid polypeptide in glucose intolerance.
2656 10960722 Elevated proinsulin secretion and islet amyloid deposition are both features of Type 2 diabetes but their relationship to beta-cell dysfunction is unknown.
2657 10960722 To determine if islet amyloid polypeptide (IAPP) secretion is disproportionate with other beta-cell products at any stage of glucose intolerance, 116 subjects were studied.
2658 10960722 Parallel changes of proinsulin and islet amyloid polypeptide in glucose intolerance.
2659 10960722 Elevated proinsulin secretion and islet amyloid deposition are both features of Type 2 diabetes but their relationship to beta-cell dysfunction is unknown.
2660 10960722 To determine if islet amyloid polypeptide (IAPP) secretion is disproportionate with other beta-cell products at any stage of glucose intolerance, 116 subjects were studied.
2661 10960722 Parallel changes of proinsulin and islet amyloid polypeptide in glucose intolerance.
2662 10960722 Elevated proinsulin secretion and islet amyloid deposition are both features of Type 2 diabetes but their relationship to beta-cell dysfunction is unknown.
2663 10960722 To determine if islet amyloid polypeptide (IAPP) secretion is disproportionate with other beta-cell products at any stage of glucose intolerance, 116 subjects were studied.
2664 10969830 The c-Jun amino-terminal kinase pathway is preferentially activated by interleukin-1 and controls apoptosis in differentiating pancreatic beta-cells.
2665 10969830 To characterize the differentiation events that selectively target insulin-producing cells to interleukin (IL)-1beta-induced apoptosis, we studied IL-1beta signaling via mitogen-activated protein kinase (MAPK) and stress-activated protein kinase in 2 pancreatic endocrine cell lines.
2666 10969830 We studied the glucagon-secreting AN-glu cell line and the insulin and the islet amyloid polypeptide-producing beta-cell line (AN-ins cells), which is derived by stable transfection of AN-glu cells with the transcription factor pancreatic duodenal homeobox factor-1.
2667 10969830 This increased sensitivity was not associated with a more pronounced IL-l-induced nitric oxide production in AN-ins cells, but it correlated with a more marked activation of the 3 MAPKs extracellular signal-regulated kinases (ERKs)-1/2, c-Jun NH2-terminal kinase (JNK), and p38 MAPK (p38).
2668 10969830 This led to increased phosphorylation of the transcription factors c-Jun, Elk-1, and ATF2 and of heat shock protein 25.
2669 10969830 Inhibition of ERK-1/2 and p38 did not prevent but aggravated IL-1beta-induced cell death.
2670 10969830 Cell death could be elicited by overexpressing the catalytic domain of MAPK kinase kinase 1, a specific activator of JNK and nuclear factor-kappaB, which does not recruit ERK-1/2 or p38.
2671 10969830 Coactivation of ERK-1/2 with JNK did not prevent apoptosis.
2672 10969830 In conclusion, increased MAPK signaling in response to IL-1beta may represent a novel molecular marker of beta-cell differentiation.
2673 10969831 The constitutive secretory pathway is a major route for islet amyloid polypeptide secretion in neonatal but not adult rat islet cells.
2674 10969831 Islet amyloid polypeptide (IAPP or amylin) is a normal secretory product of the pancreatic beta-cell that is cosecreted with insulin and is the major constituent of islet amyloid deposits in individuals with type 2 diabetes or insulinomas.
2675 10969831 The constitutive secretory pathway is a major route for islet amyloid polypeptide secretion in neonatal but not adult rat islet cells.
2676 10969831 Islet amyloid polypeptide (IAPP or amylin) is a normal secretory product of the pancreatic beta-cell that is cosecreted with insulin and is the major constituent of islet amyloid deposits in individuals with type 2 diabetes or insulinomas.
2677 10973971 Degradation of amylin by insulin-degrading enzyme.
2678 10973971 A pathological feature of Type 2 diabetes is deposits in the pancreatic islets primarily composed of amylin (islet amyloid polypeptide).
2679 10973971 Recent reports suggest that insulin-degrading enzyme (IDE) may have specificity for amyloidogenic proteins, and therefore we sought to determine whether amylin is an IDE substrate.
2680 10973971 Metalloproteinase inhibitors inactivated amylin-degrading activity with a pattern consistent with the enzymatic properties of IDE, whereas inhibitors of acid and serine proteases, calpains, and the proteasome were ineffective.
2681 10973971 Amylin degradation was inhibited by insulin in a dose-dependent manner, whereas insulin degradation was inhibited by amylin.
2682 10973971 Other substrates of IDE such as atrial natriuretic peptide and glucagon also competitively inhibited amylin degradation.
2683 10973971 Finally, a monoclonal anti-IDE antibody immunoprecipitated both insulin- and amylin-degrading activities.
2684 10973971 The data strongly suggest that IDE is an amylin-degrading enzyme and plays an important role in the clearance of amylin and the prevention of islet amyloid formation.
2685 10973971 Degradation of amylin by insulin-degrading enzyme.
2686 10973971 A pathological feature of Type 2 diabetes is deposits in the pancreatic islets primarily composed of amylin (islet amyloid polypeptide).
2687 10973971 Recent reports suggest that insulin-degrading enzyme (IDE) may have specificity for amyloidogenic proteins, and therefore we sought to determine whether amylin is an IDE substrate.
2688 10973971 Metalloproteinase inhibitors inactivated amylin-degrading activity with a pattern consistent with the enzymatic properties of IDE, whereas inhibitors of acid and serine proteases, calpains, and the proteasome were ineffective.
2689 10973971 Amylin degradation was inhibited by insulin in a dose-dependent manner, whereas insulin degradation was inhibited by amylin.
2690 10973971 Other substrates of IDE such as atrial natriuretic peptide and glucagon also competitively inhibited amylin degradation.
2691 10973971 Finally, a monoclonal anti-IDE antibody immunoprecipitated both insulin- and amylin-degrading activities.
2692 10973971 The data strongly suggest that IDE is an amylin-degrading enzyme and plays an important role in the clearance of amylin and the prevention of islet amyloid formation.
2693 10975716 Amyloid in human islets of Langerhans: immunologic evidence that islet amyloid polypeptide is modified in amyloidogenesis.
2694 10975716 Amyloid derived from the beta-cell product islet amyloid polypeptide (IAPP) has been implicated for a beta-cell lesion in Type II diabetes mellitus.
2695 10975716 Amyloid in human islets of Langerhans: immunologic evidence that islet amyloid polypeptide is modified in amyloidogenesis.
2696 10975716 Amyloid derived from the beta-cell product islet amyloid polypeptide (IAPP) has been implicated for a beta-cell lesion in Type II diabetes mellitus.
2697 11038774 [The impact of the missense mutation-ser20gly in islet amyloid polypeptide gene on NIDDM in Chinese].
2698 11069207 Islet amyloid polypeptide (IAPP) decreased to approximately 41% and approximately 24% of basal values during hypoglycemia and rapidly rose approximately 4.7-fold during the recovery period, while plasma C-peptide remained suppressed in both groups.
2699 11072517 The 37 amino acids 'islet amyloid polypeptide' (IAPP) was discovered in 1986 as the building block of islet amyloid.
2700 11072517 Islet amyloid has turned out to be a pathogenic factor, which is accompanied by death of beta-cells and reduction of the insulin producing capacity.
2701 11072517 The 37 amino acids 'islet amyloid polypeptide' (IAPP) was discovered in 1986 as the building block of islet amyloid.
2702 11072517 Islet amyloid has turned out to be a pathogenic factor, which is accompanied by death of beta-cells and reduction of the insulin producing capacity.
2703 11094339 Amyloidogenicity of recombinant human pro-islet amyloid polypeptide (ProIAPP).
2704 11095107 Pro islet amyloid polypeptide (ProIAPP) immunoreactivity in the islets of Langerhans.
2705 11095107 The islet amyloid fibril consists of the 37-amino-acid islet amyloid polypeptide (IAPP) but its pathogenesis is only partly understood.
2706 11095107 Pro islet amyloid polypeptide (ProIAPP) immunoreactivity in the islets of Langerhans.
2707 11095107 The islet amyloid fibril consists of the 37-amino-acid islet amyloid polypeptide (IAPP) but its pathogenesis is only partly understood.
2708 11106586 The domestic cat, by virtue of the fact that it is one of the few species that spontaneously develop a form of diabetes mellitus that closely resembles human type 2 diabetes, including the formation of amyloid deposits derived from islet amyloid polypeptide (IAPP), was considered to be an excellent candidate species in which to attempt to develop a nontransgenic animal model for this disease process.
2709 11106586 At the end of the study all 4 glipizide-treated cats had islet amyloid deposits, whereas only 1 of 4 insulin-treated cats had detectable amyloid.
2710 11106586 The domestic cat, by virtue of the fact that it is one of the few species that spontaneously develop a form of diabetes mellitus that closely resembles human type 2 diabetes, including the formation of amyloid deposits derived from islet amyloid polypeptide (IAPP), was considered to be an excellent candidate species in which to attempt to develop a nontransgenic animal model for this disease process.
2711 11106586 At the end of the study all 4 glipizide-treated cats had islet amyloid deposits, whereas only 1 of 4 insulin-treated cats had detectable amyloid.
2712 11108954 Receptor for advanced glycation end products (RAGE) is a multiligand member of the immunoglobulin superfamily of cell surface molecules whose repertoire of ligands includes advanced glycation end products (AGEs), amyloid fibrils, amphoterins and S100/calgranulins.
2713 11108954 For example, increased levels of AGEs in diabetes and renal insufficiency, amyloid fibrils in Alzheimer's disease brain, amphoterin in tumors and S100/calgranulins at sites of inflammation have been identified.
2714 11108954 Receptor for advanced glycation end products (RAGE) is a multiligand member of the immunoglobulin superfamily of cell surface molecules whose repertoire of ligands includes advanced glycation end products (AGEs), amyloid fibrils, amphoterins and S100/calgranulins.
2715 11108954 For example, increased levels of AGEs in diabetes and renal insufficiency, amyloid fibrils in Alzheimer's disease brain, amphoterin in tumors and S100/calgranulins at sites of inflammation have been identified.
2716 11113614 There is evidence that the reductions in the availability of both glucose/energy and insulin contribute to the formation of amyloidogenic derivatives and hyperphosphorylated tau protein.
2717 11113614 This may indicate that the amyloid cascade hypothesis in not valid for sporadic Alzheimer disease but that the formation of both, amyloidogenic derivatives and hyperphosphorylated tau protein is downstream the origin of this neurodegenerative disease.
2718 11118882 This promoter region contains sequence motifs that have been shown to be involved in beta-cell-specific expression of insulin, Pdx1 and islet amyloid polypeptide (IAPP).
2719 11124436 Molecular misreading was discovered in the rat vasopressin gene associated with diabetes insipidus and subsequently in human genes linked to Alzheimer's disease (AD), e.g. beta amyloid precursor protein (betaAPP) and ubiquitin-B (UBB).
2720 11135321 In order to further investigate islet function and secretion during early development of pancreatic cancer, we measured the concentrations of insulin, glucagon, somatostatin, and islet amyloid polypeptide (IAPP) in plasma, pancreatic tissue, and secretin-stimulated pancreatic juice at 12 and 27 weeks after the ductal-cell-specific carcinogen, BOP had been used to induce tumors in Syrian golden hamsters.
2721 11145110 Differential changes in islet amyloid polypeptide (amylin) and insulin mRNA expression after high-fat diet-induced insulin resistance in C57BL/6J mice.
2722 11145110 Islet amyloid, derived from islet amyloid polypeptide (IAPP or amylin), frequently occurs in type 2 diabetes.
2723 11145110 Differential changes in islet amyloid polypeptide (amylin) and insulin mRNA expression after high-fat diet-induced insulin resistance in C57BL/6J mice.
2724 11145110 Islet amyloid, derived from islet amyloid polypeptide (IAPP or amylin), frequently occurs in type 2 diabetes.
2725 11145957 Identification of a heparin binding domain in the N-terminal cleavage site of pro-islet amyloid polypeptide.
2726 11145957 Islet amyloid deposits are a characteristic pathologic lesion of the pancreas in type 2 diabetes and are composed primarily of the islet beta cell peptide islet amyloid polypeptide (IAPP or amylin) as well as the basement membrane heparan sulfate proteoglycan perlecan.
2727 11145957 Identification of a heparin binding domain in the N-terminal cleavage site of pro-islet amyloid polypeptide.
2728 11145957 Islet amyloid deposits are a characteristic pathologic lesion of the pancreas in type 2 diabetes and are composed primarily of the islet beta cell peptide islet amyloid polypeptide (IAPP or amylin) as well as the basement membrane heparan sulfate proteoglycan perlecan.
2729 11147796 The Zucker diabetic fatty (ZDF) rat is a model of type 2 diabetes and, like the human disease, has both insulin resistance (from a mutant leptin receptor causing obesity) and inadequate beta-cell compensation.
2730 11147796 To test for an independently inherited beta-cell defect, we examined beta-cell function in fetuses of ZDF-lean rats, which have wild-type leptin receptors. beta-Cell number and insulin content do not differ among wild-type, heterozygous, and homozygous ZDF-lean fetuses.
2731 11147796 This is not a generalized defect in gene expression nor an altered transfection efficiency, because the islet amyloid polypeptide promoter and viral promoters are unaffected.
2732 11147796 This study demonstrates that the ZDF rat carries a genetic defect in beta-cell transcription that is inherited independently from the leptin receptor mutation and insulin resistance.
2733 11150482 In this study, we established a polyclonal anti-RAGE antibody, and examined the immunohistochemical localization of amyloid beta protein (Abeta), AGE, and RAGE in neurons and astrocytes from patients with AD and DM.
2734 11150482 Abeta-, AGE-, and RAGE-positive granules were identified in the perikaryon of hippocampal neurons (especially from CA3 and CA4) in all subjects.
2735 11193791 Such changes include increased levels of oxidative stress, perturbed energy metabolism, and accumulation of insoluble (oxidatively modified) proteins (prominent among which are amyloid beta-peptide and tau).
2736 11215678 However, with sustained periods of insulin resistance, islet amyloid polypeptide (IAPP) is deposited in islets and can replace normal islet architecture, resulting in an insulin-deficient state.
2737 11230804 Inhibition of human pancreatic islet insulin release by receptor-selective somatostatin analogs directed to somatostatin receptor subtype 5.
2738 11230804 Somatostatin (SS)-14 and SS28 are produced by pancreatic D cells and gut mucosa and inhibit pancreatic islet insulin and glucagon release.
2739 11230804 Glucose-stimulated insulin secretion in human islets incubated for 1 hr at 20 mM glucose, and in islets cultured for 24 hr at a near-physiological (6.1 mM) glucose concentration, was inhibited (<50% of the control) by SSTR5-specific analogs and by SS14 and SS28.
2740 11230804 SS14, SS28, and different SSTR5 preferential analogs also inhibited islet amyloid polypeptide release during the 24-hr culture.
2741 11230804 On the other hand, a group of SSTR2-selective analogs failed to inhibit insulin release.
2742 11230804 Analysis by reverse transcription-polymerase chain reaction indicated that human islets express similar amounts of SSTR2 and SSTR5 mRNAs, while human pancreatic ductal cells express much lower levels of these mRNAs.
2743 11230804 In conclusion, our data suggest that SSTR5 is an important mediator of the insulin inhibitory action of SS in cultured human islets.
2744 11246872 The prohormone convertase enzyme 2 (PC2) is essential for processing pro-islet amyloid polypeptide at the NH2-terminal cleavage site.
2745 11246872 Impaired processing of pro-islet amyloid polypeptide (proIAPP), the precursor of the beta-cell peptide islet amyloid polypeptide (IAPP) (amylin), has been implicated in islet amyloid formation in type 2 diabetes.
2746 11246872 The prohormone convertase enzymes PC3 (also known as PC1) and PC2 are localized to beta-cell secretory granules with proIAPP and proinsulin and are responsible for proinsulin processing.
2747 11246872 These data indicate that PC2 is essential for processing of proIAPP at the NH2-terminal cleavage site in vivo and that PC3 is likely only capable of processing proIAPP at the COOH-terminal cleavage site.
2748 11246872 The prohormone convertase enzyme 2 (PC2) is essential for processing pro-islet amyloid polypeptide at the NH2-terminal cleavage site.
2749 11246872 Impaired processing of pro-islet amyloid polypeptide (proIAPP), the precursor of the beta-cell peptide islet amyloid polypeptide (IAPP) (amylin), has been implicated in islet amyloid formation in type 2 diabetes.
2750 11246872 The prohormone convertase enzymes PC3 (also known as PC1) and PC2 are localized to beta-cell secretory granules with proIAPP and proinsulin and are responsible for proinsulin processing.
2751 11246872 These data indicate that PC2 is essential for processing of proIAPP at the NH2-terminal cleavage site in vivo and that PC3 is likely only capable of processing proIAPP at the COOH-terminal cleavage site.
2752 11272181 It reviews recent studies in IAPP (islet-amyloid polypeptide, or amylin) transgenic mice developing islet amyloid deposits and hyperglycemia to suggest that the process of amyloid fibril formation impairs function early and leads to beta-cell failure and eventual death.
2753 11272181 Based on the known association of amyloid deposits and relative hyperproinsulinemia, it is hypothesized that fibril formation begins during impaired glucose tolerance after other factors cause the initial defects in early insulin secretion and insulin action.
2754 11272181 It reviews recent studies in IAPP (islet-amyloid polypeptide, or amylin) transgenic mice developing islet amyloid deposits and hyperglycemia to suggest that the process of amyloid fibril formation impairs function early and leads to beta-cell failure and eventual death.
2755 11272181 Based on the known association of amyloid deposits and relative hyperproinsulinemia, it is hypothesized that fibril formation begins during impaired glucose tolerance after other factors cause the initial defects in early insulin secretion and insulin action.
2756 11272183 Longitudinal studies in Macaca mulatta monkeys show that insulin resistance is accompanied by increased islet mass and onset of diabetes is associated with deposition of amyloid and reduction of beta-cells.
2757 11272184 The percentage of amyloid-infiltrated islets varied from 0.4 to 74%. beta-Cells from amyloid-containing islets still had specific Golgi proinsulin labeling.
2758 11272184 Proinsulin mRNA was significantly reduced in islets with amyloid deposits when compared with amyloid-free islets, but the mean reduction did not exceed 16%.
2759 11272184 Insulin was still present in the beta-cells of amyloid-containing islets, and its amount, estimated by measurement of the insulin-labeling optical density, was not statistically different from that in amyloid-free islets.
2760 11272184 In conclusion, even in amyloid-containing islets, beta-cells maintain active insulin transcription and translation and normal insulin storage.
2761 11272184 Taking into account that in most cases only a small proportion of islets are infiltrated by amyloid, the limited reduction in proinsulin mRNA is unlikely to play a major role in the pathogenesis of diabetes.
2762 11272184 The percentage of amyloid-infiltrated islets varied from 0.4 to 74%. beta-Cells from amyloid-containing islets still had specific Golgi proinsulin labeling.
2763 11272184 Proinsulin mRNA was significantly reduced in islets with amyloid deposits when compared with amyloid-free islets, but the mean reduction did not exceed 16%.
2764 11272184 Insulin was still present in the beta-cells of amyloid-containing islets, and its amount, estimated by measurement of the insulin-labeling optical density, was not statistically different from that in amyloid-free islets.
2765 11272184 In conclusion, even in amyloid-containing islets, beta-cells maintain active insulin transcription and translation and normal insulin storage.
2766 11272184 Taking into account that in most cases only a small proportion of islets are infiltrated by amyloid, the limited reduction in proinsulin mRNA is unlikely to play a major role in the pathogenesis of diabetes.
2767 11272184 The percentage of amyloid-infiltrated islets varied from 0.4 to 74%. beta-Cells from amyloid-containing islets still had specific Golgi proinsulin labeling.
2768 11272184 Proinsulin mRNA was significantly reduced in islets with amyloid deposits when compared with amyloid-free islets, but the mean reduction did not exceed 16%.
2769 11272184 Insulin was still present in the beta-cells of amyloid-containing islets, and its amount, estimated by measurement of the insulin-labeling optical density, was not statistically different from that in amyloid-free islets.
2770 11272184 In conclusion, even in amyloid-containing islets, beta-cells maintain active insulin transcription and translation and normal insulin storage.
2771 11272184 Taking into account that in most cases only a small proportion of islets are infiltrated by amyloid, the limited reduction in proinsulin mRNA is unlikely to play a major role in the pathogenesis of diabetes.
2772 11272184 The percentage of amyloid-infiltrated islets varied from 0.4 to 74%. beta-Cells from amyloid-containing islets still had specific Golgi proinsulin labeling.
2773 11272184 Proinsulin mRNA was significantly reduced in islets with amyloid deposits when compared with amyloid-free islets, but the mean reduction did not exceed 16%.
2774 11272184 Insulin was still present in the beta-cells of amyloid-containing islets, and its amount, estimated by measurement of the insulin-labeling optical density, was not statistically different from that in amyloid-free islets.
2775 11272184 In conclusion, even in amyloid-containing islets, beta-cells maintain active insulin transcription and translation and normal insulin storage.
2776 11272184 Taking into account that in most cases only a small proportion of islets are infiltrated by amyloid, the limited reduction in proinsulin mRNA is unlikely to play a major role in the pathogenesis of diabetes.
2777 11272184 The percentage of amyloid-infiltrated islets varied from 0.4 to 74%. beta-Cells from amyloid-containing islets still had specific Golgi proinsulin labeling.
2778 11272184 Proinsulin mRNA was significantly reduced in islets with amyloid deposits when compared with amyloid-free islets, but the mean reduction did not exceed 16%.
2779 11272184 Insulin was still present in the beta-cells of amyloid-containing islets, and its amount, estimated by measurement of the insulin-labeling optical density, was not statistically different from that in amyloid-free islets.
2780 11272184 In conclusion, even in amyloid-containing islets, beta-cells maintain active insulin transcription and translation and normal insulin storage.
2781 11272184 Taking into account that in most cases only a small proportion of islets are infiltrated by amyloid, the limited reduction in proinsulin mRNA is unlikely to play a major role in the pathogenesis of diabetes.
2782 11272188 Oophorectomy promotes islet amyloid formation in human islet amyloid polypeptide transgenic mice.
2783 11291934 High glucose concentration favors the selective secretion of islet amyloid polypeptide through a constitutive secretory pathway in human pancreatic islets.
2784 11291934 We studied the contribution of the constitutive and the regulated pathways to the total secretion of islet amyloid polypeptide (IAPP) in human pancreatic islets after prolonged culture at either 5.5 or 24.4 mM glucose.
2785 11291934 High glucose concentration favors the selective secretion of islet amyloid polypeptide through a constitutive secretory pathway in human pancreatic islets.
2786 11291934 We studied the contribution of the constitutive and the regulated pathways to the total secretion of islet amyloid polypeptide (IAPP) in human pancreatic islets after prolonged culture at either 5.5 or 24.4 mM glucose.
2787 11301286 Tumor necrosis factor (TNF)-converting enzyme (TACE) and other ADAM proteases (those that contain a disintegrin and a metalloprotease domain) have emerged as potential therapeutic targets in the areas of arthritis, cancer, diabetes and HIV cachexia.
2788 11301286 TACE is the first ADAM protease to process the known physiological substrate and inflammatory cytokine, membrane-bound precursor-TNF-alpha, to its mature soluble form.
2789 11301286 Subsequently, TACE was shown to be required for several different processing events such as tumor growth factor-alpha (TGF-alpha) precursor and amyloid precursor protein (APP) cleavage.
2790 11318791 The islet amyloid polypeptide (amylin) gene S20G mutation in Chinese subjects: evidence for associations with type 2 diabetes and cholesterol levels.
2791 11327784 Identification of a novel human islet amyloid polypeptide beta-sheet domain and factors influencing fibrillogenesis.
2792 11327784 Human islet amyloid polypeptide (hIAPP) accumulates as pancreatic amyloid in type 2 diabetes and readily forms fibrils in vitro.
2793 11327784 Identification of a novel human islet amyloid polypeptide beta-sheet domain and factors influencing fibrillogenesis.
2794 11327784 Human islet amyloid polypeptide (hIAPP) accumulates as pancreatic amyloid in type 2 diabetes and readily forms fibrils in vitro.
2795 11334439 This study examines, at the ultrastructural level, whether the fetal porcine endocrine pancreas (insulin, glucagon, somatostatin, and pancreatic polypeptide [PP]- and islet amyloid polypeptide [IAPP]-containing cells) develops normally after transplantation under the kidney capsule in athymic mice.
2796 11350174 Islet amyloid polypeptide: identification of long-range contacts and local order on the fibrillogenesis pathway.
2797 11350174 The principle component of these deposits is an insoluble fibrillar form of a normally soluble 37 residue peptide hormone, islet amyloid polypeptide.
2798 11350174 These are compared to a non-amyloidogenic variant of islet amyloid polypeptide from rat and N-acetyl-tyrosinamide as models of the unfolded state under matched conditions.
2799 11350174 Parallel assessment of fiber formation using the histological dye, ThT, indicate that ordering at the C terminus of islet amyloid polypeptide is coincident with, and thus indicative of, fiber formation.
2800 11350174 Islet amyloid polypeptide: identification of long-range contacts and local order on the fibrillogenesis pathway.
2801 11350174 The principle component of these deposits is an insoluble fibrillar form of a normally soluble 37 residue peptide hormone, islet amyloid polypeptide.
2802 11350174 These are compared to a non-amyloidogenic variant of islet amyloid polypeptide from rat and N-acetyl-tyrosinamide as models of the unfolded state under matched conditions.
2803 11350174 Parallel assessment of fiber formation using the histological dye, ThT, indicate that ordering at the C terminus of islet amyloid polypeptide is coincident with, and thus indicative of, fiber formation.
2804 11350174 Islet amyloid polypeptide: identification of long-range contacts and local order on the fibrillogenesis pathway.
2805 11350174 The principle component of these deposits is an insoluble fibrillar form of a normally soluble 37 residue peptide hormone, islet amyloid polypeptide.
2806 11350174 These are compared to a non-amyloidogenic variant of islet amyloid polypeptide from rat and N-acetyl-tyrosinamide as models of the unfolded state under matched conditions.
2807 11350174 Parallel assessment of fiber formation using the histological dye, ThT, indicate that ordering at the C terminus of islet amyloid polypeptide is coincident with, and thus indicative of, fiber formation.
2808 11350174 Islet amyloid polypeptide: identification of long-range contacts and local order on the fibrillogenesis pathway.
2809 11350174 The principle component of these deposits is an insoluble fibrillar form of a normally soluble 37 residue peptide hormone, islet amyloid polypeptide.
2810 11350174 These are compared to a non-amyloidogenic variant of islet amyloid polypeptide from rat and N-acetyl-tyrosinamide as models of the unfolded state under matched conditions.
2811 11350174 Parallel assessment of fiber formation using the histological dye, ThT, indicate that ordering at the C terminus of islet amyloid polypeptide is coincident with, and thus indicative of, fiber formation.
2812 11395927 Agouti signaling protein stimulates islet amyloid polypeptide (amylin) secretion in pancreatic beta-cells.
2813 11395927 We have shown the human homologue of agouti (agouti signaling protein; ASP) to regulate human adipocyte metabolism and lipid storage via a Ca(2+)-dependent mechanism.
2814 11395927 We have also demonstrated agouti expression in human pancreas, and that ASP stimulates insulin release via a similar Ca(2+)-dependent mechanism.
2815 11395927 Amylin is cosecreted with insulin from beta-cells, and overexpression of human amylin in beta-cells in yellow agouti mutant mice resulted in accelerated pancreatic amyloid deposition, severely impaired beta-cell function, and a diabetic phenotype.
2816 11395927 We report here that ASP stimulates amylin release in both the HIT-T15 beta-cell line and human pancreatic islets in the presence of a wide range of glucose concentrations (0-16.7 mmol/L), similar to its effect on insulin release; this effect was blocked by 30 mumol/L nitrendipine, confirming a Ca(2+)-dependent mechanism.
2817 11395927 Agouti signaling protein stimulates islet amyloid polypeptide (amylin) secretion in pancreatic beta-cells.
2818 11395927 We have shown the human homologue of agouti (agouti signaling protein; ASP) to regulate human adipocyte metabolism and lipid storage via a Ca(2+)-dependent mechanism.
2819 11395927 We have also demonstrated agouti expression in human pancreas, and that ASP stimulates insulin release via a similar Ca(2+)-dependent mechanism.
2820 11395927 Amylin is cosecreted with insulin from beta-cells, and overexpression of human amylin in beta-cells in yellow agouti mutant mice resulted in accelerated pancreatic amyloid deposition, severely impaired beta-cell function, and a diabetic phenotype.
2821 11395927 We report here that ASP stimulates amylin release in both the HIT-T15 beta-cell line and human pancreatic islets in the presence of a wide range of glucose concentrations (0-16.7 mmol/L), similar to its effect on insulin release; this effect was blocked by 30 mumol/L nitrendipine, confirming a Ca(2+)-dependent mechanism.
2822 11445568 Analysis of the minimal amyloid-forming fragment of the islet amyloid polypeptide.
2823 11445568 The development of type II diabetes was shown to be associated with the formation of amyloid fibrils consisted of the islet amyloid polypeptide (IAPP or amylin).
2824 11445568 Analysis of the minimal amyloid-forming fragment of the islet amyloid polypeptide.
2825 11445568 The development of type II diabetes was shown to be associated with the formation of amyloid fibrils consisted of the islet amyloid polypeptide (IAPP or amylin).
2826 11484088 A novel mutation in islet amyloid polypeptide (IAPP) gene promoter is associated with Type II diabetes mellitus.
2827 11507651 In the islets, staining intensity of both insulin and islet amyloid polypeptide (IAPP) increased slightly till 10 weeks of age and thereafter decreased rapidly.
2828 11507651 In contrast, the staining intensities of glucagon, somatostatin, and pancreatic polypeptide (PP) did not change.
2829 11522748 Islet amyloid polypeptide is not a satisfactory marker for detecting pancreatic cancer.
2830 11546817 We demonstrate that adipose tissue expresses a number of acute phase reactants at high levels, including serum amyloid A3 (SAA3), alphal-acid glycoprotein, the lipocalin 24p3 as well as plasminogen activator inhibitor-1 (PAI-1).
2831 11555835 Alterations in beta-cell function, such as formation of amyloid from excessive production of amylin and reduced expression of GLUT2, have been suggested to be possible mechanisms.
2832 11555835 We compared in vivo secretory responses of amylin and insulin (n = 37) and expression of GLUT2 in pancreata (n = 10) obtained at surgery between diabetic and nondiabetic patients with and without pancreatic tumors.
2833 11679429 These mice produce the unique amyloidogenic component of human islet amyloid, human islet amyloid polypeptide (hIAPP).
2834 11684098 Inhibitors can arrest the membrane activity of human islet amyloid polypeptide independently of amyloid formation.
2835 11684098 Human islet amyloid polypeptide (hIAPP), co-secreted with insulin from pancreatic beta cells, misfolds to form amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM).
2836 11684098 Inhibitors can arrest the membrane activity of human islet amyloid polypeptide independently of amyloid formation.
2837 11684098 Human islet amyloid polypeptide (hIAPP), co-secreted with insulin from pancreatic beta cells, misfolds to form amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM).
2838 11720876 High plasma amylin/islet amyloid polypeptide levels in patients with residual medullary thyroid carcinoma after total thyroidectomy.
2839 11731221 Islet amyloid polypeptide (IAPP, amylin) is secreted from pancreatic islet beta-cells and converted to amyloid deposits in type 2 diabetes.
2840 11786016 Pancreatic amyloid is formed by the aggregation of the 37-residue islet amyloid polypeptide (IAPP) in type II diabetes patients and is cytotoxic.
2841 11791616 Enhanced in vitro production of amyloid-like fibrils from mutant (S20G) islet amyloid polypeptide.
2842 11834421 Pancreas duodenum homeobox-1 (PDX-1) (also known as insulin promoter factor-1, islet/duodenum homeobox-1, somatostatin transactivating factor-1, insulin upstream factor-1 and glucose-sensitive factor) is a transcription factor encoded by a Hox-like homeodomain gene.
2843 11834421 In adult subjects, PDX-1 is essential for normal pancreatic islet function as suggested by its regulatory action on the expression of a number of pancreatic genes, including insulin, somatostatin, islet amyloid polypeptide, the glucose transporter type 2 and glucokinase.
2844 11875249 There is current data supporting the damaging role of intermediate sized toxic amyloid particles to the beta cell resulting in a beta cell defect which contributes to a relative deficiency or loss of insulin secretion.
2845 11916915 A tendency toward beta-cell de-differentiation was also apparent with palmitate: pyruvate carboxylase and mitochondrial glycerol 3-phosphate dehydrogenase were downregulated, whereas lactate dehydrogenase and fructose 1,6-bisphosphatases were induced.
2846 11916915 However, palmitate also increased expression of calcyclin and 25-kDa synaptosomal-associated protein (SNAP25), which control distal secretory processes.
2847 11916915 Oleate and palmitate also induced expression of chemokines (MCP-1 and GRO1 oncogene) and genes of the acute phase response (serum amyloid A3).
2848 11916915 Increases in transcriptional modulators such as ATF3, CCAAT/enhancer binding protein-beta (C/EBPbeta), C/EBPdelta, and c-fos were also seen.
2849 11926832 Islet amyloid polypeptide (IAPP) contributes to the pathogenesis of type II diabetes by depositing as cytotoxic amyloid fibers in the endocrine pancreas.
2850 12015594 Targeted pharmacological depletion of serum amyloid P component for treatment of human amyloidosis.
2851 12015594 The normal plasma protein serum amyloid P component (SAP) binds to fibrils in all types of amyloid deposits, and contributes to the pathogenesis of amyloidosis.
2852 12015594 In order to intervene in this process we have developed a drug, R-1-[6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid, that is a competitive inhibitor of SAP binding to amyloid fibrils.
2853 12015594 This mechanism of drug action potently removes SAP from human amyloid deposits in the tissues and may provide a new therapeutic approach to both systemic amyloidosis and diseases associated with local amyloid, including Alzheimer's disease and type 2 diabetes.
2854 12015594 Targeted pharmacological depletion of serum amyloid P component for treatment of human amyloidosis.
2855 12015594 The normal plasma protein serum amyloid P component (SAP) binds to fibrils in all types of amyloid deposits, and contributes to the pathogenesis of amyloidosis.
2856 12015594 In order to intervene in this process we have developed a drug, R-1-[6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid, that is a competitive inhibitor of SAP binding to amyloid fibrils.
2857 12015594 This mechanism of drug action potently removes SAP from human amyloid deposits in the tissues and may provide a new therapeutic approach to both systemic amyloidosis and diseases associated with local amyloid, including Alzheimer's disease and type 2 diabetes.
2858 12015594 Targeted pharmacological depletion of serum amyloid P component for treatment of human amyloidosis.
2859 12015594 The normal plasma protein serum amyloid P component (SAP) binds to fibrils in all types of amyloid deposits, and contributes to the pathogenesis of amyloidosis.
2860 12015594 In order to intervene in this process we have developed a drug, R-1-[6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid, that is a competitive inhibitor of SAP binding to amyloid fibrils.
2861 12015594 This mechanism of drug action potently removes SAP from human amyloid deposits in the tissues and may provide a new therapeutic approach to both systemic amyloidosis and diseases associated with local amyloid, including Alzheimer's disease and type 2 diabetes.
2862 12015594 Targeted pharmacological depletion of serum amyloid P component for treatment of human amyloidosis.
2863 12015594 The normal plasma protein serum amyloid P component (SAP) binds to fibrils in all types of amyloid deposits, and contributes to the pathogenesis of amyloidosis.
2864 12015594 In order to intervene in this process we have developed a drug, R-1-[6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid, that is a competitive inhibitor of SAP binding to amyloid fibrils.
2865 12015594 This mechanism of drug action potently removes SAP from human amyloid deposits in the tissues and may provide a new therapeutic approach to both systemic amyloidosis and diseases associated with local amyloid, including Alzheimer's disease and type 2 diabetes.
2866 12028373 While the disposition index promises to be a useful tool to predict individuals at high risk of developing type 2 diabetes, other factors that contribute to beta-cell dysfunction and mark disease onset and progression include impairments in proinsulin processing and insulin secretion, decreased beta-cell mass and islet amyloid deposition.
2867 12031967 Overexpression of c-Myc in beta-cells of transgenic mice causes proliferation and apoptosis, downregulation of insulin gene expression, and diabetes.
2868 12031967 To test the hypothesis that c-Myc plays an important role in beta-cell growth and differentiation, we generated transgenic mice overexpressing c-Myc in beta-cells under control of the rat insulin II promoter.
2869 12031967 GLUT2 mRNA was decreased, but other beta-cell-associated genes (IAPP [islet amyloid pancreatic polypeptide], PDX-1 [pancreatic and duodenal homeobox-1], and BETA2/NeuroD) were expressed at near-normal levels.
2870 12031967 Immunostaining for both GLUT2 and Nkx6.1 was mainly cytoplasmic.
2871 12031967 In conclusion, these studies demonstrate that activation of c-Myc in beta-cells leads to 1) increased proliferation and apoptosis, 2) initial hyperplasia with amorphous islet organization, and 3) selective downregulation of insulin gene expression and the development of overt diabetes.
2872 12031974 Yeast-2 hybrid screening identified serum amyloid A (SAA), an acute-phase inflammatory response protein, as an interacting protein of Tanis, and this was confirmed by Biacore experiments.
2873 12039445 These ligands include products of nonenzymatic glycation, the Advanced Glycation Endproducts (AGEs, enriched in the diabetic milieu), members of the S100/calgranulin family of proinflammatory mediators, beta-sheet fibrillar structures (characteristic of amyloid) and amphoterin (present at high levels in the tumor bed).
2874 12049785 We show here that these cells express islet amyloid polypeptide and prohormone convertase 1/3 (PC1/3), proteins that are not expressed by mature alpha cells, but are found in beta cells.
2875 12049785 PC1/3 converts proglucagon to the functionally distinct hormones glucagon-like peptide (GLP)-1 and GLP-2 rather than glucagon.
2876 12049785 Despite these differences, the early proglucagon-positive cells express, as do mature alpha cells, the POU domain transcription factor Brn-4, and do not express the beta cell factor pdx-1.
2877 12054816 Design of peptide-based inhibitors of human islet amyloid polypeptide fibrillogenesis.
2878 12054816 Human islet amyloid polypeptide (IAPP) is the major component of amyloid deposits found in the pancreas of over 90% of all cases of type-2 diabetes.
2879 12054816 Design of peptide-based inhibitors of human islet amyloid polypeptide fibrillogenesis.
2880 12054816 Human islet amyloid polypeptide (IAPP) is the major component of amyloid deposits found in the pancreas of over 90% of all cases of type-2 diabetes.
2881 12084635 For example, insulin regulates phosphorylation of tau protein, which underlies neurofibrillary lesions in the brains of AD patients.
2882 12084635 Insulin also affects the metabolism of beta-amyloid, the main constituent of AD amyloid pathology.
2883 12086946 Estrogen can prevent or reverse obesity and diabetes in mice expressing human islet amyloid polypeptide.
2884 12086946 Type 2 diabetes is characterized by loss of beta-cell mass and concomitant deposition of amyloid derived from islet amyloid polypeptide (IAPP).
2885 12086946 Estrogen can prevent or reverse obesity and diabetes in mice expressing human islet amyloid polypeptide.
2886 12086946 Type 2 diabetes is characterized by loss of beta-cell mass and concomitant deposition of amyloid derived from islet amyloid polypeptide (IAPP).
2887 12110051 Sections of paraffin-embedded tissues were evaluated for amyloid with hematoxylin and eosin (HE) and congo red (CR) staining, and using immunohistochemistry for human islet amyloid polypeptide (IAPP), calcitonin gene-related peptide (CGRP), glucagon, pancreatic polypeptide (PP), somatostatin (SS), and porcine insulin.
2888 12110051 Islet amyloid was positive with HE in 40 baboons, with CR in 39 baboons, and with IAPP and CGRP in 35 baboons.
2889 12110051 IAPP and CGRP only stained islet amyloid.
2890 12110051 PP, SS, glucagon, and porcine insulin did not stain amyloid.
2891 12110051 Sections of paraffin-embedded tissues were evaluated for amyloid with hematoxylin and eosin (HE) and congo red (CR) staining, and using immunohistochemistry for human islet amyloid polypeptide (IAPP), calcitonin gene-related peptide (CGRP), glucagon, pancreatic polypeptide (PP), somatostatin (SS), and porcine insulin.
2892 12110051 Islet amyloid was positive with HE in 40 baboons, with CR in 39 baboons, and with IAPP and CGRP in 35 baboons.
2893 12110051 IAPP and CGRP only stained islet amyloid.
2894 12110051 PP, SS, glucagon, and porcine insulin did not stain amyloid.
2895 12110051 Sections of paraffin-embedded tissues were evaluated for amyloid with hematoxylin and eosin (HE) and congo red (CR) staining, and using immunohistochemistry for human islet amyloid polypeptide (IAPP), calcitonin gene-related peptide (CGRP), glucagon, pancreatic polypeptide (PP), somatostatin (SS), and porcine insulin.
2896 12110051 Islet amyloid was positive with HE in 40 baboons, with CR in 39 baboons, and with IAPP and CGRP in 35 baboons.
2897 12110051 IAPP and CGRP only stained islet amyloid.
2898 12110051 PP, SS, glucagon, and porcine insulin did not stain amyloid.
2899 12110051 Sections of paraffin-embedded tissues were evaluated for amyloid with hematoxylin and eosin (HE) and congo red (CR) staining, and using immunohistochemistry for human islet amyloid polypeptide (IAPP), calcitonin gene-related peptide (CGRP), glucagon, pancreatic polypeptide (PP), somatostatin (SS), and porcine insulin.
2900 12110051 Islet amyloid was positive with HE in 40 baboons, with CR in 39 baboons, and with IAPP and CGRP in 35 baboons.
2901 12110051 IAPP and CGRP only stained islet amyloid.
2902 12110051 PP, SS, glucagon, and porcine insulin did not stain amyloid.
2903 12110767 Islet redox stress: the manifold toxicities of insulin resistance, metabolic syndrome and amylin derived islet amyloid in type 2 diabetes mellitus.
2904 12124300 We report constraints on the supramolecular structure of amyloid fibrils formed by the 40-residue beta-amyloid peptide associated with Alzheimer's disease (A beta(1-40)) obtained from solid-state nuclear magnetic resonance (NMR) measurements of intermolecular dipole-dipole couplings between (13)C labels at 11 carbon sites in residues 2 through 39.
2905 12209476 Amyloidogenicity and cytotoxicity of islet amyloid polypeptide.
2906 12209476 Insoluble amyloid formation by islet amyloid polypeptide (IAPP) in the islets of Langerhans of the pancreas is a major pathophysiological feature of noninsulin dependent diabetes mellitus (NIDDM) or type II diabetes.
2907 12209476 Amyloidogenicity and cytotoxicity of islet amyloid polypeptide.
2908 12209476 Insoluble amyloid formation by islet amyloid polypeptide (IAPP) in the islets of Langerhans of the pancreas is a major pathophysiological feature of noninsulin dependent diabetes mellitus (NIDDM) or type II diabetes.
2909 12222959 In this review, we discuss the context of each of these classes of ligands, including advance glycation end-products, amyloid beta peptide and the family of beta sheet fibrils, S100/calgranulins and amphoterin.
2910 12234175 Protofibrillar islet amyloid polypeptide permeabilizes synthetic vesicles by a pore-like mechanism that may be relevant to type II diabetes.
2911 12234175 Islet amyloid polypeptide (IAPP) and insulin are copackaged and cosecreted by pancreatic islet beta-cells.
2912 12234175 Non-insulin-dependent (type II) diabetes mellitus (NIDDM) is characterized by dysfunction and depletion of these beta-cells and also, in more than 90% of patients, amyloid plaques containing fibrillar IAPP.
2913 12234175 Protofibrillar islet amyloid polypeptide permeabilizes synthetic vesicles by a pore-like mechanism that may be relevant to type II diabetes.
2914 12234175 Islet amyloid polypeptide (IAPP) and insulin are copackaged and cosecreted by pancreatic islet beta-cells.
2915 12234175 Non-insulin-dependent (type II) diabetes mellitus (NIDDM) is characterized by dysfunction and depletion of these beta-cells and also, in more than 90% of patients, amyloid plaques containing fibrillar IAPP.
2916 12234175 Protofibrillar islet amyloid polypeptide permeabilizes synthetic vesicles by a pore-like mechanism that may be relevant to type II diabetes.
2917 12234175 Islet amyloid polypeptide (IAPP) and insulin are copackaged and cosecreted by pancreatic islet beta-cells.
2918 12234175 Non-insulin-dependent (type II) diabetes mellitus (NIDDM) is characterized by dysfunction and depletion of these beta-cells and also, in more than 90% of patients, amyloid plaques containing fibrillar IAPP.
2919 12367525 Identification and characterization of a novel molecular-recognition and self-assembly domain within the islet amyloid polypeptide.
2920 12367525 The islet amyloid polypeptide (hIAPP) is a 37 amino acid residue polypeptide that was found to accumulate as amyloid fibrils in the pancreas of individuals with type II diabetes.
2921 12367525 Identification and characterization of a novel molecular-recognition and self-assembly domain within the islet amyloid polypeptide.
2922 12367525 The islet amyloid polypeptide (hIAPP) is a 37 amino acid residue polypeptide that was found to accumulate as amyloid fibrils in the pancreas of individuals with type II diabetes.
2923 12419183 This correlates with tPA binding and stimulation of tPA-mediated plasminogen activation.
2924 12419183 Prototype amyloid peptides, including Abeta and islet amyloid polypeptide (IAPP) (associated with pancreatic beta cell toxicity in type II diabetes), have no sequence similarity to the fibrin peptides but also bind to tPA and can substitute for fibrin in plasminogen activation by tPA.
2925 12419183 Moreover, the induction of cross-beta structure in an otherwise globular protein (endostatin) endows it with tPA-activating potential.
2926 12431815 IA in both humans and cats is derived from islet amyloid polypeptide (IAPP, or amylin) which is a hormone produced and secreted along with insulin by the pancreatic beta cells.
2927 12453678 Receptor for Advanced Glycation Endproducts (RAGE) is a member of the immunoglobulin superfamily of cell surface molecules capable of interacting with a broad spectrum of ligands, including advanced glycation endproducts (AGEs), amyloid fibrils, S100/calgranulins and amphoterin.
2928 12467491 Insulin may also play a role in regulating the amyloid precursor protein and its derivative beta-amyloid (Abeta), which is associated with senile plaques, a neuropathological hallmark of Alzheimer's disease.
2929 12467491 It has been proposed that insulin can accelerate the intracellular trafficking of Abeta and interfere with its degradation.
2930 12467491 These findings are consistent with the notion that insulin abnormalities may potentially influence levels of Abeta in the brains of patients with Alzheimer's disease.
2931 12467491 The thiazolidinedione rosiglitazone has been shown to have a potent insulin-sensitising action that appears to be mediated through the peroxisome proliferator-activated receptor-gamma (PPAR-gamma).
2932 12480734 In most AD cases, Abeta peptides also form some deposits in the cerebrovasculature, leading to cerebral amyloid angiopathy and hemorrhagic stroke.
2933 12480734 We studied the effect of Abeta on constrictor responses elicited by endothelin-1 in isolated human cerebral arteries collected following rapid autopsies.
2934 12480734 We report that freshly solubilized Abeta potentiates endothelin-1-induced vasoconstriction in isolated human middle cerebral and basilar arteries.
2935 12480734 The vasoconstriction elicited by Abeta in these large human cerebral arteries appears to be completely antagonized by NS-398, a selective cyclooxygenase-2 inhibitor, or by SB202190, a specific p38 mitogen-activated protein kinase inhibitor, suggesting that Abeta vasoactivity is mediated via the stimulation of a proinflammatory pathway.
2936 12481027 We present a structural model for amyloid fibrils formed by the 40-residue beta-amyloid peptide associated with Alzheimer's disease (Abeta(1-40)), based on a set of experimental constraints from solid state NMR spectroscopy.
2937 12515900 Furthermore, GLP-1 can modify processing of the amyloid beta- protein precursor in cell culture and dose-dependently reduces amyloid beta-peptide levels in the brain in vivo.
2938 12525695 Expression of Pax4 in embryonic stem cells promotes differentiation of nestin-positive progenitor and insulin-producing cells.
2939 12525695 We show that constitutive expression of Pax4 (Pax4(+)), and to a lesser extent Pdx1 (Pdx1(+)), affects the differentiation of ES cells and significantly promote the development of insulin-producing cells.
2940 12525695 In Pax4 overexpressing R1 ES cells, isl-1, ngn3, insulin, islet amyloid polypeptide, and glucose transporter 2 (Glut-2) mRNA levels increase significantly.
2941 12525695 Constitutive Pax4 expression combined with selection of nestin+ cells and histotypic culture conditions give rise to spheroids containing insulin-positive granules typical of embryonal and adult beta cells.
2942 12540610 Transgenic mice expressing the amyloidogenic human islet amyloid polypeptide (hIAPP) in their islet beta-cells are a model of islet amyloid formation as it occurs in type 2 diabetes.
2943 12540610 In summary, dietary fat enhances both the prevalence and severity of islet amyloid and leads to beta-cell loss and impaired insulin secretion.
2944 12540610 Transgenic mice expressing the amyloidogenic human islet amyloid polypeptide (hIAPP) in their islet beta-cells are a model of islet amyloid formation as it occurs in type 2 diabetes.
2945 12540610 In summary, dietary fat enhances both the prevalence and severity of islet amyloid and leads to beta-cell loss and impaired insulin secretion.
2946 12544832 Effect of amyloid precursor protein 17mer peptide on microtubule structure and tau protein hyperphosphorylation in hippocampal neurons of experimental diabetic mice.
2947 12544832 The objective of this study was to investigate whether microtubular structure changes and tau protein hyperphosphorylation exist in hippocampal neurons of experimental diabetic mice, and to study the effect of amyloid precursor protein 17mer peptide.
2948 12544832 Effect of amyloid precursor protein 17mer peptide on microtubule structure and tau protein hyperphosphorylation in hippocampal neurons of experimental diabetic mice.
2949 12544832 The objective of this study was to investigate whether microtubular structure changes and tau protein hyperphosphorylation exist in hippocampal neurons of experimental diabetic mice, and to study the effect of amyloid precursor protein 17mer peptide.
2950 12588049 Polymorphism in intron 2 of islet amyloid polypeptide gene is associated with lower low-density lipoprotein cholesterol in nondiabetic subjects and in type 2 diabetic patients.
2951 12588049 The aim of this study was to investigate the presence of mutations in the islet amyloid polypeptide (IAPP) gene in a Spanish population with type 2 diabetes and gestational diabetes mellitus (GDM).
2952 12588049 Polymorphism in intron 2 of islet amyloid polypeptide gene is associated with lower low-density lipoprotein cholesterol in nondiabetic subjects and in type 2 diabetic patients.
2953 12588049 The aim of this study was to investigate the presence of mutations in the islet amyloid polypeptide (IAPP) gene in a Spanish population with type 2 diabetes and gestational diabetes mellitus (GDM).
2954 12605343 Islet amyloid polypeptide (amylin), cosecreted with insulin by the pancreatic beta-cells, has an important role in the regulation of islet cell hormone homeoastasis.
2955 12606822 Effects of free fatty acid on polymerization of islet amyloid polypeptide (IAPP) in vitro and on amyloid fibril formation in cultivated isolated islets of transgenic mice overexpressing human IAPP.
2956 12616983 CRP increases during oral contraceptive use were associated with changes in some other acute-phase proteins (fibrinogen, ceruloplasmin, von Willebrand factor [vWF]) originating from the liver and vessel wall, but not in others (interleukin-6 [IL-6], serum amyloid A [SAA]).
2957 12618085 We therefore evaluated CRP and the nearby serum amyloid P-component, APCS, which is structurally similar to CRP, as candidate diabetes susceptibility genes.
2958 12618085 We genotyped representative SNPs in approximately 1300 Pima samples and found a single variant in the CRP promoter (SNP 133552) that was associated with T2DM (P=0.014), as well as a common haplotype (CGCG) that was associated with both T2DM (P=0.029) and corrected insulin response, a surrogate measure of insulin secretion in non-diabetic subjects (P=0.050).
2959 12630035 Elevated fasting plasma level of islet amyloid polypeptide (IAPP) in chronic alcoholic pancreatitis (CAP).
2960 12634421 Insulin-degrading enzyme regulates the levels of insulin, amyloid beta-protein, and the beta-amyloid precursor protein intracellular domain in vivo.
2961 12634421 Two substrates of insulin-degrading enzyme (IDE), amyloid beta-protein (Abeta) and insulin, are critically important in the pathogenesis of Alzheimer's disease (AD) and type 2 diabetes mellitus (DM2), respectively.
2962 12634421 We previously identified IDE as a principal regulator of Abeta levels in neuronal and microglial cells.
2963 12634421 To establish whether IDE hypofunction decreases Abeta and insulin degradation in vivo and chronically increases their levels, we characterized mice with homozygous deletions of the IDE gene (IDE --).
2964 12634421 IDE deficiency resulted in a >50% decrease in Abeta degradation in both brain membrane fractions and primary neuronal cultures and a similar deficit in insulin degradation in liver.
2965 12634421 The IDE -- mice showed increased cerebral accumulation of endogenous Abeta, a hallmark of AD, and had hyperinsulinemia and glucose intolerance, hallmarks of DM2.
2966 12634421 Insulin-degrading enzyme regulates the levels of insulin, amyloid beta-protein, and the beta-amyloid precursor protein intracellular domain in vivo.
2967 12634421 Two substrates of insulin-degrading enzyme (IDE), amyloid beta-protein (Abeta) and insulin, are critically important in the pathogenesis of Alzheimer's disease (AD) and type 2 diabetes mellitus (DM2), respectively.
2968 12634421 We previously identified IDE as a principal regulator of Abeta levels in neuronal and microglial cells.
2969 12634421 To establish whether IDE hypofunction decreases Abeta and insulin degradation in vivo and chronically increases their levels, we characterized mice with homozygous deletions of the IDE gene (IDE --).
2970 12634421 IDE deficiency resulted in a >50% decrease in Abeta degradation in both brain membrane fractions and primary neuronal cultures and a similar deficit in insulin degradation in liver.
2971 12634421 The IDE -- mice showed increased cerebral accumulation of endogenous Abeta, a hallmark of AD, and had hyperinsulinemia and glucose intolerance, hallmarks of DM2.
2972 12637985 The effect of apolipoprotein E deficiency on islet amyloid deposition in human islet amyloid polypeptide transgenic mice.
2973 12670620 Islet amyloid polypeptide and type 2 diabetes.
2974 12670620 Islet amyloid polypeptide (IAPP; amylin), the major component of islet amyloid, is co-secreted with insulin from beta-cells.
2975 12670620 Islet amyloid polypeptide and type 2 diabetes.
2976 12670620 Islet amyloid polypeptide (IAPP; amylin), the major component of islet amyloid, is co-secreted with insulin from beta-cells.
2977 12686466 Postnatally disturbed pancreatic islet cell distribution in human islet amyloid polypeptide transgenic mice.
2978 12706318 Apolipoprotein E genotype, islet amyloid deposition and severity of Type 2 diabetes.
2979 12706318 Islet amyloid is found in 90% of patients with Type 2 (non-insulin-dependent) diabetes at post-mortem.
2980 12706318 It is unlikely that the common polymorphisms for the ApoE gene are linked to amyloid formation or progression of islet dysfunction in Type 2 diabetes.
2981 12706318 Apolipoprotein E genotype, islet amyloid deposition and severity of Type 2 diabetes.
2982 12706318 Islet amyloid is found in 90% of patients with Type 2 (non-insulin-dependent) diabetes at post-mortem.
2983 12706318 It is unlikely that the common polymorphisms for the ApoE gene are linked to amyloid formation or progression of islet dysfunction in Type 2 diabetes.
2984 12706318 Apolipoprotein E genotype, islet amyloid deposition and severity of Type 2 diabetes.
2985 12706318 Islet amyloid is found in 90% of patients with Type 2 (non-insulin-dependent) diabetes at post-mortem.
2986 12706318 It is unlikely that the common polymorphisms for the ApoE gene are linked to amyloid formation or progression of islet dysfunction in Type 2 diabetes.
2987 12717005 However, pairs of integral counterregulatory controllers (e.g. insulin and glucagon, or calcitonin and parathyroid hormone) cannot operate on the same controlled variable, unless there is some form of mutual inhibition.
2988 12717005 Our synthesis of the information pertaining to the glucose homeostat that has accumulated in the literature predicts that disruption of the flip-flop mechanism by the accumulation of amyloid in the pancreatic islets in type 2 diabetes mellitus will lead to hyperglucagonaemia, hyperinsulinaemia, insulin resistance, glucose intolerance and impaired insulin responsiveness to elevated blood glucose levels.
2989 12719273 Micelle formation by a fragment of human islet amyloid polypeptide.
2990 12719273 Human islet amyloid polypeptide (hIAPP) is the major component of amyloid plaques found in the pancreatic islets of persons with type 2 diabetes mellitus.
2991 12719273 Micelle formation by a fragment of human islet amyloid polypeptide.
2992 12719273 Human islet amyloid polypeptide (hIAPP) is the major component of amyloid plaques found in the pancreatic islets of persons with type 2 diabetes mellitus.
2993 12729615 They contain both amylin (islet amyloid polypeptide), the beta-cell-derived unique fibrillogenic component, and heparan sulfate proteoglycans (HSPGs).
2994 12736442 Evaluation of feline serum amyloid A (SAA) as an inflammatory marker.
2995 12749025 Glucagon-like peptide-1 decreases endogenous amyloid-beta peptide (Abeta) levels and protects hippocampal neurons from death induced by Abeta and iron.
2996 12749025 We report here that GLP-1 can reduce the levels of amyloid-beta peptide (Abeta) in the brain in vivo and can reduce levels of amyloid precursor protein (APP) in cultured neuronal cells.
2997 12749025 Moreover, GLP-1 and exendin-4 protect cultured hippocampal neurons against death induced by Abeta and iron, an oxidative insult.
2998 12749025 Collectively, these data suggest that GLP-1 can modify APP processing and protect against oxidative injury, two actions that suggest a novel therapeutic target for intervention in Alzheimer's disease.
2999 12765956 The effect of amyloid beta-peptides, 50 micromol/l Abeta(25-35) or 2 micromol/l Abeta(1-40), on mitochondrial function was also analyzed.
3000 12766975 The inherited amyloid neuropathies are due to mutations of three proteins: transthyretin, apolipoprotein A1, and gelsolin.
3001 12786686 Studies of variability in the islet amyloid polypeptide gene in relation to Type 2 diabetes.
3002 12806128 Amylin (islet amyloid polypeptide) is a peptide synthesized principally in the beta-cells of the pancreatic islets together with insulin and has actions as a hormone, growth factor, and modifier of behavior.
3003 12821727 Insulin and Alzheimer's disease: an amyloid connection.
3004 12829636 Replication increases beta-cell vulnerability to human islet amyloid polypeptide-induced apoptosis.
3005 12829636 Type 2 diabetes is characterized by a relative beta-cell deficit as a result of increased beta-cell apoptosis and islet amyloid derived from the beta-cell peptide islet amyloid polypeptide (IAPP).
3006 12829636 Replication increases beta-cell vulnerability to human islet amyloid polypeptide-induced apoptosis.
3007 12829636 Type 2 diabetes is characterized by a relative beta-cell deficit as a result of increased beta-cell apoptosis and islet amyloid derived from the beta-cell peptide islet amyloid polypeptide (IAPP).
3008 12849365 Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL)and some forms of cerebral amyloid angiopathy have a genetic basis.
3009 12882918 ES cells were evaluated for their ability to differentiate into pancreatic and islet lineage-restricted stages including pancreatic duodenal homeobox 1 (PDX1)-positive pancreatic precursor cells, early endocrine cell progenitors, and islet hormone-producing cells.
3010 12882918 Following growth and differentiation in nonselective medium containing serum, murine ES cells spontaneously differentiated into cells individually expressing each of the four major islet hormones: insulin, glucagon, somatostatin, and pancreatic polypeptide.
3011 12882918 Hormone-positive cells appeared within focal clusters of cells coexpressing PDX1 and the nonclassical hormone markers peptide YY (YY) and islet amyloid polypeptide (IAPP) in combination with the definitive hormones, characteristic of endocrine cells appearing during early pancreaticogenesis.
3012 12941770 In an attempt to establish the mechanism for the deficit in beta-cell mass in type 2 diabetes, we used an obese versus lean murine transgenic model for human islet amyloid polypeptide (IAPP) that develops islet pathology comparable to that in humans with type 2 diabetes.
3013 12941771 An insulin-degrading enzyme inhibitor decreases amylin degradation, increases amylin-induced cytotoxicity, and increases amyloid formation in insulinoma cell cultures.
3014 12941771 Amylin (islet amyloid polypeptide) is the chief component of the islet amyloid found in type 2 diabetes, and amylin fibril precursors may be cytotoxic to pancreatic beta-cells.
3015 12941771 We investigated the role of insulin-degrading enzyme (IDE) in amylin degradation, amyloid deposition, and cytotoxicity in RIN-m5F insulinoma cells.
3016 12941771 The IDE inhibitor bacitracin inhibited amylin degradation by 78% and insulin degradation by 100%.
3017 12941771 IDE inhibition by bacitracin impaired amylin degradation, increased amyloid formation, and increased amylin-induced cytotoxicity, suggesting a role for IDE in amylin clearance and the prevention of amylin aggregation.
3018 12941771 An insulin-degrading enzyme inhibitor decreases amylin degradation, increases amylin-induced cytotoxicity, and increases amyloid formation in insulinoma cell cultures.
3019 12941771 Amylin (islet amyloid polypeptide) is the chief component of the islet amyloid found in type 2 diabetes, and amylin fibril precursors may be cytotoxic to pancreatic beta-cells.
3020 12941771 We investigated the role of insulin-degrading enzyme (IDE) in amylin degradation, amyloid deposition, and cytotoxicity in RIN-m5F insulinoma cells.
3021 12941771 The IDE inhibitor bacitracin inhibited amylin degradation by 78% and insulin degradation by 100%.
3022 12941771 IDE inhibition by bacitracin impaired amylin degradation, increased amyloid formation, and increased amylin-induced cytotoxicity, suggesting a role for IDE in amylin clearance and the prevention of amylin aggregation.
3023 12941771 An insulin-degrading enzyme inhibitor decreases amylin degradation, increases amylin-induced cytotoxicity, and increases amyloid formation in insulinoma cell cultures.
3024 12941771 Amylin (islet amyloid polypeptide) is the chief component of the islet amyloid found in type 2 diabetes, and amylin fibril precursors may be cytotoxic to pancreatic beta-cells.
3025 12941771 We investigated the role of insulin-degrading enzyme (IDE) in amylin degradation, amyloid deposition, and cytotoxicity in RIN-m5F insulinoma cells.
3026 12941771 The IDE inhibitor bacitracin inhibited amylin degradation by 78% and insulin degradation by 100%.
3027 12941771 IDE inhibition by bacitracin impaired amylin degradation, increased amyloid formation, and increased amylin-induced cytotoxicity, suggesting a role for IDE in amylin clearance and the prevention of amylin aggregation.
3028 12941771 An insulin-degrading enzyme inhibitor decreases amylin degradation, increases amylin-induced cytotoxicity, and increases amyloid formation in insulinoma cell cultures.
3029 12941771 Amylin (islet amyloid polypeptide) is the chief component of the islet amyloid found in type 2 diabetes, and amylin fibril precursors may be cytotoxic to pancreatic beta-cells.
3030 12941771 We investigated the role of insulin-degrading enzyme (IDE) in amylin degradation, amyloid deposition, and cytotoxicity in RIN-m5F insulinoma cells.
3031 12941771 The IDE inhibitor bacitracin inhibited amylin degradation by 78% and insulin degradation by 100%.
3032 12941771 IDE inhibition by bacitracin impaired amylin degradation, increased amyloid formation, and increased amylin-induced cytotoxicity, suggesting a role for IDE in amylin clearance and the prevention of amylin aggregation.
3033 12952363 Using reverse transcriptase-polymerase chain reaction, no differences in mRNA expression levels were found for insulin, islet amyloid polypeptide (IAPP), and the prohormone convertase (PC) 1 and PC2 between 6-week-old untreated ZDF rats and 19-week-old sham- and phlorizin-treated ZDF rats.
3034 12962700 Glycosaminoglycans (GAG) and the pentraxin protein, serum amyloid P (SAP) component, are universal non-fibrillar constituents of amyloid deposits that contribute to fibrillogenesis.
3035 12962700 We review potential therapies for amyloidosis, which include measures to reduce the production of amyloidogenic precursor proteins, interference with fibrillogenesis, and enhancement of amyloid clearance, either by active or passive immunisation or by destabilising deposits through removal of serum amyloid P component.
3036 12962700 Glycosaminoglycans (GAG) and the pentraxin protein, serum amyloid P (SAP) component, are universal non-fibrillar constituents of amyloid deposits that contribute to fibrillogenesis.
3037 12962700 We review potential therapies for amyloidosis, which include measures to reduce the production of amyloidogenic precursor proteins, interference with fibrillogenesis, and enhancement of amyloid clearance, either by active or passive immunisation or by destabilising deposits through removal of serum amyloid P component.
3038 12974632 The human islet amyloid polypeptide forms transient membrane-active prefibrillar assemblies.
3039 12974632 The formation of amyloid fibrils by the human islet amyloid polypeptide is associated with type II diabetes.
3040 12974632 Here, we specifically studied the membrane interaction activity of soluble and insoluble islet amyloid polypeptide assemblies at high temporal resolution.
3041 12974632 The human islet amyloid polypeptide forms transient membrane-active prefibrillar assemblies.
3042 12974632 The formation of amyloid fibrils by the human islet amyloid polypeptide is associated with type II diabetes.
3043 12974632 Here, we specifically studied the membrane interaction activity of soluble and insoluble islet amyloid polypeptide assemblies at high temporal resolution.
3044 12974632 The human islet amyloid polypeptide forms transient membrane-active prefibrillar assemblies.
3045 12974632 The formation of amyloid fibrils by the human islet amyloid polypeptide is associated with type II diabetes.
3046 12974632 Here, we specifically studied the membrane interaction activity of soluble and insoluble islet amyloid polypeptide assemblies at high temporal resolution.
3047 13807843 Nephrogenic diabetes insipidus caused by amyloid disease.
3048 14565847 Pancreatic beta-cell granule peptides form heteromolecular complexes which inhibit islet amyloid polypeptide fibril formation.
3049 14565847 Islet amyloid polypeptide (IAPP), or 'amylin', is co-stored with insulin in secretory granules of pancreatic islet beta-cells.
3050 14565847 Since rIAPP and hIAPP form complexes with insulin (and each other), this could explain the lack of amyloid fibrils in transgenic mice expressing hIAPP.
3051 14565847 Pancreatic beta-cell granule peptides form heteromolecular complexes which inhibit islet amyloid polypeptide fibril formation.
3052 14565847 Islet amyloid polypeptide (IAPP), or 'amylin', is co-stored with insulin in secretory granules of pancreatic islet beta-cells.
3053 14565847 Since rIAPP and hIAPP form complexes with insulin (and each other), this could explain the lack of amyloid fibrils in transgenic mice expressing hIAPP.
3054 14565847 Pancreatic beta-cell granule peptides form heteromolecular complexes which inhibit islet amyloid polypeptide fibril formation.
3055 14565847 Islet amyloid polypeptide (IAPP), or 'amylin', is co-stored with insulin in secretory granules of pancreatic islet beta-cells.
3056 14565847 Since rIAPP and hIAPP form complexes with insulin (and each other), this could explain the lack of amyloid fibrils in transgenic mice expressing hIAPP.
3057 14573810 Surviving beta cells were found to synthesize little insulin, although islet amyloid polypeptide was detected and glucagon synthesis in alpha cells appeared normal or enhanced.
3058 14578281 Using algorithms to predict nonameric beta-cell peptides that would bind to the common HLA allele, HLA-A*0201, we identified a potential epitope from the leader sequence of islet amyloid polypeptide (human islet amyloid polypeptide [IAPP] precursor protein [preproIAPP] 5-13: KLQVFLIVL).
3059 14578294 Islet amyloid has been suggested to be an important link between insulin resistance and beta-cell dysfunction in type 2 diabetes.
3060 14578294 These findings suggest that islet amyloid deposits reflect greater insulin resistance and islet failure in a subgroup of type 2 diabetic patients.
3061 14578294 Islet amyloid has been suggested to be an important link between insulin resistance and beta-cell dysfunction in type 2 diabetes.
3062 14578294 These findings suggest that islet amyloid deposits reflect greater insulin resistance and islet failure in a subgroup of type 2 diabetic patients.
3063 14613923 Extended life span is associated with insulin resistance in a transgenic mouse model of insulinoma secreting human islet amyloid polypeptide.
3064 14613923 To study mechanisms of islet amyloidogenesis, we produced transgenic mice expressing the unique component of human islet amyloid, human islet amyloid polypeptide (hIAPP).
3065 14613923 This increase in life span in hIAPPxRIP-Tag was positively correlated with body weight (r = 0.48, P < 0.05) and was associated with decreased insulin sensitivity compared with RIP-Tag mice. hIAPPxRIP-Tag mice did not develop amyloid during their 4-mo life span, suggesting that increased hIAPP secretion is insufficient for islet amyloid formation within such a short time.
3066 14613923 Extended life span is associated with insulin resistance in a transgenic mouse model of insulinoma secreting human islet amyloid polypeptide.
3067 14613923 To study mechanisms of islet amyloidogenesis, we produced transgenic mice expressing the unique component of human islet amyloid, human islet amyloid polypeptide (hIAPP).
3068 14613923 This increase in life span in hIAPPxRIP-Tag was positively correlated with body weight (r = 0.48, P < 0.05) and was associated with decreased insulin sensitivity compared with RIP-Tag mice. hIAPPxRIP-Tag mice did not develop amyloid during their 4-mo life span, suggesting that increased hIAPP secretion is insufficient for islet amyloid formation within such a short time.
3069 14613923 Extended life span is associated with insulin resistance in a transgenic mouse model of insulinoma secreting human islet amyloid polypeptide.
3070 14613923 To study mechanisms of islet amyloidogenesis, we produced transgenic mice expressing the unique component of human islet amyloid, human islet amyloid polypeptide (hIAPP).
3071 14613923 This increase in life span in hIAPPxRIP-Tag was positively correlated with body weight (r = 0.48, P < 0.05) and was associated with decreased insulin sensitivity compared with RIP-Tag mice. hIAPPxRIP-Tag mice did not develop amyloid during their 4-mo life span, suggesting that increased hIAPP secretion is insufficient for islet amyloid formation within such a short time.
3072 14624021 Relationship between testosterone, sex hormone binding globulin and plasma amyloid beta peptide 40 in older men with subjective memory loss or dementia.
3073 14624021 In a group of 28 older men with either subjective memory loss or dementia, serum total testosterone and sex hormone binding globulin (SHBG) correlated inversely with plasma levels of amyloid beta peptide 40 (Abeta40, r=-0.5, P=0.01 and r=-0.4, P=0.04, respectively).
3074 14624021 Relationship between testosterone, sex hormone binding globulin and plasma amyloid beta peptide 40 in older men with subjective memory loss or dementia.
3075 14624021 In a group of 28 older men with either subjective memory loss or dementia, serum total testosterone and sex hormone binding globulin (SHBG) correlated inversely with plasma levels of amyloid beta peptide 40 (Abeta40, r=-0.5, P=0.01 and r=-0.4, P=0.04, respectively).
3076 14659752 The mechanism of insulin action on islet amyloid polypeptide fiber formation.
3077 14659752 The main component of these deposits, islet amyloid polypeptide (IAPP), is a hormone involved in glucose metabolism and is normally co-secreted with insulin by the beta-cells of the pancreas.
3078 14659752 The mechanism of insulin action on islet amyloid polypeptide fiber formation.
3079 14659752 The main component of these deposits, islet amyloid polypeptide (IAPP), is a hormone involved in glucose metabolism and is normally co-secreted with insulin by the beta-cells of the pancreas.
3080 14659754 We report solid state nuclear magnetic resonance (NMR) measurements that probe the supramolecular organization of beta-sheets in the cross-beta motif of amyloid fibrils formed by residues 11-25 of the beta-amyloid peptide associated with Alzheimer's disease (Abeta(11-25)).
3081 14693708 Role of beta-cell prohormone convertase (PC)1/3 in processing of pro-islet amyloid polypeptide.
3082 14693708 Islet amyloid polypeptide (IAPP) (amylin), the major component of islet amyloid, is produced by cleavage at the COOH- and NH(2)-termini of its precursor, proIAPP, likely by the beta-cell prohormone convertases (PC) 1/3 and PC2.
3083 14693708 Mice lacking PC2 can process proIAPP at its COOH- but not its NH(2)-terminal cleavage site, suggesting that PC1/3 is capable of initiating proIAPP cleavage at its COOH-terminus.
3084 14693708 Next, GH3 cells that do not normally express proIAPP or detectable levels of PC1/3 or PC2 were cotransduced with adenoviruses expressing rat proIAPP and either PC2 or PC1/3.
3085 14693708 Coexpression of proIAPP and PC2 resulted in production of mature IAPP, whereas in cells that coexpressed proIAPP and PC1/3 only a 6-kDa intermediate was produced.
3086 14693708 We conclude that PC1/3 is important for processing of proIAPP at the COOH-terminus, but in its absence, PC2 can initiate complete processing of proIAPP to IAPP by cleaving the precursor at either its NH(2)- or COOH-terminal cleavage sites.
3087 14693708 Role of beta-cell prohormone convertase (PC)1/3 in processing of pro-islet amyloid polypeptide.
3088 14693708 Islet amyloid polypeptide (IAPP) (amylin), the major component of islet amyloid, is produced by cleavage at the COOH- and NH(2)-termini of its precursor, proIAPP, likely by the beta-cell prohormone convertases (PC) 1/3 and PC2.
3089 14693708 Mice lacking PC2 can process proIAPP at its COOH- but not its NH(2)-terminal cleavage site, suggesting that PC1/3 is capable of initiating proIAPP cleavage at its COOH-terminus.
3090 14693708 Next, GH3 cells that do not normally express proIAPP or detectable levels of PC1/3 or PC2 were cotransduced with adenoviruses expressing rat proIAPP and either PC2 or PC1/3.
3091 14693708 Coexpression of proIAPP and PC2 resulted in production of mature IAPP, whereas in cells that coexpressed proIAPP and PC1/3 only a 6-kDa intermediate was produced.
3092 14693708 We conclude that PC1/3 is important for processing of proIAPP at the COOH-terminus, but in its absence, PC2 can initiate complete processing of proIAPP to IAPP by cleaving the precursor at either its NH(2)- or COOH-terminal cleavage sites.
3093 14711882 The term myofibrillar myopathy (MFM) was proposed in 1996 as a non-committal term for a pathological pattern of myofibrillar dissolution associated with accumulation of myofibrillar degradation products and ectopic expression of multiple proteins that include desmin, alphaB-crystallin (alphaBC), dystrophin and congophilic amyloid material.
3094 14711882 Semiquantitative analysis in each case indicates that among the abnormal fibres, an average of 90, 75, 75, 70 and 70% abnormally express myotilin, desmin, alphaBC, dystrophin and beta-amyloid precursor protein, respectively.
3095 14711882 In all patients, we searched for mutations in desmin and alphaBC, as well as in telethonin, a Z-disk-associated protein, or in syncoilin, which together with plectin links desmin to the Z-disk.
3096 14711882 Two of the 63 patients carry truncation mutations in the C-terminal domain of alphaBC, four carry missense mutations in the head or tail region of desmin, and none carries a mutation in syncoilin or telethonin.
3097 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3098 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3099 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3100 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3101 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3102 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3103 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3104 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3105 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3106 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3107 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3108 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3109 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3110 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3111 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3112 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3113 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3114 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3115 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3116 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3117 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3118 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3119 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3120 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3121 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3122 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3123 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3124 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3125 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3126 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3127 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3128 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3129 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3130 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3131 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3132 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3133 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3134 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3135 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3136 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3137 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3138 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3139 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3140 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3141 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3142 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3143 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3144 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3145 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3146 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3147 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3148 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3149 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3150 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3151 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3152 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3153 14722650 Islet amyloid polypeptide is a 37 amino-acid, beta-cell peptide which is co-stored and co-released with insulin.
3154 14722650 Human islet amyloid polypeptide refolds to a beta-conformation and oligomerises to form insoluble fibrils; proline substitutions in rodent islet amyloid polypeptide prevent this molecular transition.
3155 14722650 Pro-islet amyloid polypeptide (67 amino acids in man) is processed in secretory granules.
3156 14722650 Refolding of islet amyloid polypeptide may be prevented by intragranular heterodimer formation with insulin (but not proinsulin).
3157 14722650 Diabetes-associated abnormal proinsulin processing could contribute to de-stabilisation of granular islet amyloid polypeptide.
3158 14722650 Increased pro-islet amyloid polypeptide secretion as a consequence of islet dysfunction could promote fibrillogenesis; the propeptide forms fibrils and binds to basement membrane glycosamino-glycans.
3159 14722650 Islet amyloid polypeptide gene polymorphisms are not universally associated with Type 2 diabetes.
3160 14722650 Transgenic mice expressing human islet amyloid polypeptide gene have increased islet amyloid polypeptide concentrations but develop islet amyloid only against a background of obesity and/or high fat diet.
3161 14729343 Structural characterisation of islet amyloid polypeptide fibrils.
3162 14729343 Amyloid fibrils found deposited in the pancreatic islets are composed of a 37-residue peptide, known as islet amyloid polypeptide (IAPP) (also known as amylin) and are similar to those found in other amyloid diseases.
3163 14729343 Structural characterisation of islet amyloid polypeptide fibrils.
3164 14729343 Amyloid fibrils found deposited in the pancreatic islets are composed of a 37-residue peptide, known as islet amyloid polypeptide (IAPP) (also known as amylin) and are similar to those found in other amyloid diseases.
3165 14747300 Alzheimer disease and type 2 diabetes are characterized by increased prevalence with aging, a genetic predisposition, and comparable pathological features in the islet and brain (amyloid derived from amyloid beta protein in the brain in Alzheimer disease and islet amyloid derived from islet amyloid polypeptide in the pancreas in type 2 diabetes).
3166 14973422 In this paper some of the peptides or low molecular weight proteins along with some analogues which have been employed in experimental studies and in humans are reviewed, with major emphasis on amyloid seekers, insulin and leptin.
3167 14976144 Glucose-induced expression of the cyclin-dependent protein kinase 5 activator p35 involved in Alzheimer's disease regulates insulin gene transcription in pancreatic beta-cells.
3168 14976144 The deposition of amyloid within the insulin-producing islets of Langerhans in the pancreas is a common pathological finding in patients with type 2 diabetes.
3169 14976144 Overactivity of CDK5 occurs by proteolytic cleavage and cellular mislocalization of its activator, p35.
3170 14976144 These alterations in p35/CDK5 signaling pathway may mediate, at least in part, the functional abnormalities characteristic of Alzheimer's disease.
3171 14976144 In this study we report that both the p35 and CDK5 genes are expressed in insulin-producing beta-cells of the pancreas.
3172 14976144 We detect in beta-cells the formation of an active p35/CDK5 complex with specific kinase activity.
3173 14976144 Notably, elevations of the extracellular concentration of glucose result in increases in p35 mRNA and protein levels that parallel elevations of p35/CDK5 activity.
3174 14976144 Functional studies show that p35 stimulates the activity of the insulin promoter and that the stimulation requires CDK5 because stimulation is blocked by roscovitine, an inhibitor of CDK5 activity, a dominant negative form of CDK5, and small interfering RNAs against p35.
3175 14976144 Our findings indicate that the expression of p35 and CDK5 in insulin-producing beta-cells ensembles a new signaling pathway, the activity of which is controlled by glucose, and its functional role may comprise the regulation of various biological processes in beta-cells, such as is the case for expression of the insulin gene.
3176 14983239 Cardiovascular risk profile, serum albumin, serum amyloid A (SAA) and fibrinogen were obtained at baseline, and patients were followed for median 21 months (interquartile range 12 to 25) for the occurrence of major adverse cardiac events (MACE: myocardial infarction, percutaneous coronary interventions, coronary artery bypass graft, and death).
3177 14983239 Low albumin predicted MACE independently of SAA and fibrinogen.
3178 14986904 Recent data on experimental atherosclerosis in mice show that (a) insulin administration reduces the number and the size of atherosclerotic lesions in apolipoprotein E null mice; and (b) in insulin receptor substrate-2 null mice, the interruption in insulin signal transduction results in enhanced atherogenicity.
3179 14986904 The authors' most recent data show that a low-dose infusion of insulin in patients with AMI induces a reduction in inflammation (C-reactive protein and serum amyloid A) and oxidative stress and may have a role in myocardial protection.
3180 15025802 Serum amyloid A, C-reactive protein and remnant-like lipoprotein particle cholesterol in type 2 diabetic patients with coronary heart disease.
3181 15028942 The transcription factor pancreatic duodenal homeobox 1 (PDX-1) is uniformly expressed in early pancreatic buds of embryos as well as the beta and delta cells of the islets of Langerhans.
3182 15028942 It has been shown that PDX-1 is required for maintaining the pancreatic islet functions by activating gene transcriptions including insulin, somatostatin (SST), islet amyloid polypeptide, glucose transporter type 2, and glucokinase.
3183 15033922 We found that diet-induced insulin resistance promoted amyloidogenic beta-amyloid (Abeta) Abeta1-40 and Abeta1-42 peptide generation in the brain that corresponded with increased gamma-secretase activities and decreased insulin degrading enzyme (IDE) activities.
3184 15033922 Moreover, increased Abeta production also coincided with increased AD-type amyloid plaque burden in the brain and impaired performance in a spatial water maze task.
3185 15033922 Further exploration of the apparent interrelationship of insulin resistance to brain amyloidosis revealed a functional decrease in insulin receptor (IR)-mediated signal transduction in the brain, as suggested by decreased IR beta-subunit (IRbeta) Y1162/1163 autophosphorylation and reduced phosphatidylinositol 3 (PI3)-kinase/pS473-AKT/Protein kinase (PK)-B in these same brain regions.
3186 15033922 This latter finding is of particular interest given the known inhibitory role of AKT/PKB on glycogen synthase kinase (GSK)-3alpha activity, which has previously been shown to promote Abeta peptide generation.
3187 15033922 Most interestingly, we found that decreased pS21-GSK-3alpha and pS9-GSK-3beta phosphorylation, which is an index of GSK activation, positively correlated with the generation of brain C-terminal fragment (CTF)-gamma cleavage product of amyloid precursor protein, an index of gamma-secretase activity, in the brain of insulin-resistant relative to normoglycemic Tg2576 mice.
3188 15033922 Our study is consistent with the hypothesis that insulin resistance may be an underlying mechanism responsible for the observed increased relative risk for AD neuropathology, and presents the first evidence to suggest that IR signaling can influence Abeta production in the brain.
3189 15033922 We found that diet-induced insulin resistance promoted amyloidogenic beta-amyloid (Abeta) Abeta1-40 and Abeta1-42 peptide generation in the brain that corresponded with increased gamma-secretase activities and decreased insulin degrading enzyme (IDE) activities.
3190 15033922 Moreover, increased Abeta production also coincided with increased AD-type amyloid plaque burden in the brain and impaired performance in a spatial water maze task.
3191 15033922 Further exploration of the apparent interrelationship of insulin resistance to brain amyloidosis revealed a functional decrease in insulin receptor (IR)-mediated signal transduction in the brain, as suggested by decreased IR beta-subunit (IRbeta) Y1162/1163 autophosphorylation and reduced phosphatidylinositol 3 (PI3)-kinase/pS473-AKT/Protein kinase (PK)-B in these same brain regions.
3192 15033922 This latter finding is of particular interest given the known inhibitory role of AKT/PKB on glycogen synthase kinase (GSK)-3alpha activity, which has previously been shown to promote Abeta peptide generation.
3193 15033922 Most interestingly, we found that decreased pS21-GSK-3alpha and pS9-GSK-3beta phosphorylation, which is an index of GSK activation, positively correlated with the generation of brain C-terminal fragment (CTF)-gamma cleavage product of amyloid precursor protein, an index of gamma-secretase activity, in the brain of insulin-resistant relative to normoglycemic Tg2576 mice.
3194 15033922 Our study is consistent with the hypothesis that insulin resistance may be an underlying mechanism responsible for the observed increased relative risk for AD neuropathology, and presents the first evidence to suggest that IR signaling can influence Abeta production in the brain.
3195 15039230 Partial loss-of-function mutations in insulin-degrading enzyme that induce diabetes also impair degradation of amyloid beta-protein.
3196 15039230 The causes of cerebral accumulation of amyloid beta-protein (Abeta) in most cases of Alzheimer's disease (AD) remain unknown.
3197 15039230 We recently found that homozygous deletion of the insulin-degrading enzyme (IDE) gene in mice results in an early and marked elevation of cerebral Abeta.
3198 15039230 For IDE to remain a valid candidate gene for late-onset AD on functional grounds, it must be shown that partial loss of function of IDE can still alter Abeta degradation, but without causing early, severe elevation of brain Abeta.
3199 15039230 Here, we show that naturally occurring IDE missense mutations in a well-characterized rat model of type 2 diabetes mellitus (DM2) result in decreased catalytic efficiency and a significant approximately 15 to 30% deficit in the degradation of both insulin and Abeta.
3200 15039230 Endogenously secreted Abeta(40) and Abeta(42) are significantly elevated in primary neuronal cultures from animals with the IDE mutations, but there is no increase in steady-state levels of rodent Abeta in the brain up to age 14 months.
3201 15039230 We conclude that naturally occurring, partial loss-of-function mutations in IDE sufficient to cause DM2 also impair neuronal regulation of Abeta levels, but the brain can apparently compensate for the partial deficit during the life span of the rat.
3202 15039230 Partial loss-of-function mutations in insulin-degrading enzyme that induce diabetes also impair degradation of amyloid beta-protein.
3203 15039230 The causes of cerebral accumulation of amyloid beta-protein (Abeta) in most cases of Alzheimer's disease (AD) remain unknown.
3204 15039230 We recently found that homozygous deletion of the insulin-degrading enzyme (IDE) gene in mice results in an early and marked elevation of cerebral Abeta.
3205 15039230 For IDE to remain a valid candidate gene for late-onset AD on functional grounds, it must be shown that partial loss of function of IDE can still alter Abeta degradation, but without causing early, severe elevation of brain Abeta.
3206 15039230 Here, we show that naturally occurring IDE missense mutations in a well-characterized rat model of type 2 diabetes mellitus (DM2) result in decreased catalytic efficiency and a significant approximately 15 to 30% deficit in the degradation of both insulin and Abeta.
3207 15039230 Endogenously secreted Abeta(40) and Abeta(42) are significantly elevated in primary neuronal cultures from animals with the IDE mutations, but there is no increase in steady-state levels of rodent Abeta in the brain up to age 14 months.
3208 15039230 We conclude that naturally occurring, partial loss-of-function mutations in IDE sufficient to cause DM2 also impair neuronal regulation of Abeta levels, but the brain can apparently compensate for the partial deficit during the life span of the rat.
3209 15071491 We investigated the hypothesis that low-penetrance mutations in genes (TNFRSF1A, MEFV and NALP3/CIAS1) associated with hereditary periodic fever syndromes (HPFs) might be risk factors for AA amyloidosis among patients with chronic inflammatory disorders, including rheumatoid arthritis (RA), juvenile idiopathic arthritis (JIA), Crohn's disease, undiagnosed recurrent fevers and HPFs themselves.
3210 15071491 Four of 67 patients with RA plus amyloidosis had MEFV variants compared with none of 34 RA patients without amyloid (P value=0.03).
3211 15071491 The E148Q variant of MEFV was present in two of the three patients with TNF receptor-associated periodic syndrome (TRAPS) complicated by amyloid in two separate multiplex TRAPS families containing 5 and 16 affected members respectively, and the single patient with Muckle-Wells syndrome who had amyloidosis was homozygous for this variant.
3212 15071491 Although allelic variants in HPFs genes are not major susceptibility factors for AA amyloidosis in chronic inflammatory disease, low-penetrance variants of MEFV and TNFRSF1A may have clinically significant proinflammatory effects.
3213 15071491 We investigated the hypothesis that low-penetrance mutations in genes (TNFRSF1A, MEFV and NALP3/CIAS1) associated with hereditary periodic fever syndromes (HPFs) might be risk factors for AA amyloidosis among patients with chronic inflammatory disorders, including rheumatoid arthritis (RA), juvenile idiopathic arthritis (JIA), Crohn's disease, undiagnosed recurrent fevers and HPFs themselves.
3214 15071491 Four of 67 patients with RA plus amyloidosis had MEFV variants compared with none of 34 RA patients without amyloid (P value=0.03).
3215 15071491 The E148Q variant of MEFV was present in two of the three patients with TNF receptor-associated periodic syndrome (TRAPS) complicated by amyloid in two separate multiplex TRAPS families containing 5 and 16 affected members respectively, and the single patient with Muckle-Wells syndrome who had amyloidosis was homozygous for this variant.
3216 15071491 Although allelic variants in HPFs genes are not major susceptibility factors for AA amyloidosis in chronic inflammatory disease, low-penetrance variants of MEFV and TNFRSF1A may have clinically significant proinflammatory effects.
3217 15094077 Clinical studies have corroborated findings that patients with Alzheimer's disease are more likely than healthy older adults to have reduced insulin sensitivity, and further suggest that apolipoprotein E genotype may modulate the effects of insulin on glucose disposal, memory facilitation, and amyloid precursor protein processing.
3218 15094078 In early-onset familial Alzheimer disease, the inhibition of neuronal insulin receptor function may be due to competitive binding of amyloid beta (Abeta) to the insulin receptor.
3219 15094078 The consequences of the inhibition of neuronal insulin signal transduction may be largely identical to those of disturbances of oxidative energy metabolism and related metabolism, and of hyperphosphorylation of tau-protein.
3220 15094078 As far as the metabolism of amyloid precursor protein (APP) in late-onset sporadic Alzheimer disease is concerned, neuronal insulin receptor dysfunction may result in the intracellular accumulation of Abeta and in subsequent cellular damage.
3221 15094078 In early-onset familial Alzheimer disease, the inhibition of neuronal insulin receptor function may be due to competitive binding of amyloid beta (Abeta) to the insulin receptor.
3222 15094078 The consequences of the inhibition of neuronal insulin signal transduction may be largely identical to those of disturbances of oxidative energy metabolism and related metabolism, and of hyperphosphorylation of tau-protein.
3223 15094078 As far as the metabolism of amyloid precursor protein (APP) in late-onset sporadic Alzheimer disease is concerned, neuronal insulin receptor dysfunction may result in the intracellular accumulation of Abeta and in subsequent cellular damage.
3224 15110389 In the hippocampus, neuronal and, to an extent, glial expression was more marked in CA3 and CA4 than in CA1 and CA2.
3225 15110389 In AD, CML was found to be coexpressed with tau protein, showing the similar neurofibrillary tangle shape, as well as in neuritic plaques but not in the core of amyloid plaques.
3226 15161755 Diabetes due to a progressive defect in beta-cell mass in rats transgenic for human islet amyloid polypeptide (HIP Rat): a new model for type 2 diabetes.
3227 15161755 Also, islets in type 2 diabetes often contain deposits of islet amyloid derived from islet amyloid polypeptide (IAPP), a 37-amino acid protein cosecreted with insulin by beta-cells.
3228 15161755 Diabetes due to a progressive defect in beta-cell mass in rats transgenic for human islet amyloid polypeptide (HIP Rat): a new model for type 2 diabetes.
3229 15161755 Also, islets in type 2 diabetes often contain deposits of islet amyloid derived from islet amyloid polypeptide (IAPP), a 37-amino acid protein cosecreted with insulin by beta-cells.
3230 15163543 On the other hand, arsenite has high affinity for sulfhydryl groups and thus can form covalent bonds with the disulfide bridges in the molecules of insulin, insulin receptors, glucose transporters (GLUTs), and enzymes involved in glucose metabolism (e.g., pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase).
3231 15163543 Recent studies have shown that, in subjects with chronic arsenic exposure, oxidative stress is increased and the expression of tumor necrosis factor alpha (TNFalpha) and interleukin-6 (IL-6) is upregulated.
3232 15163543 Arsenite at physiologically relevant concentration also shows inhibitory effect on the expression of peroxisome proliferator-activated receptor gamma (PPARgamma), a nuclear hormone receptor important for activating insulin action.
3233 15163543 Oxidative stress has been suggested as a major pathogenic link to both insulin resistance and beta cell dysfunction through mechanisms involving activation of nuclear factor-kappaB (NF-kappaB), which is also activated by low levels of arsenic.
3234 15163543 Although without supportive data, superoxide production induced by arsenic exposure can theoretically impair insulin secretion by interaction with uncoupling protein 2 (UCP2), and oxidative stress can also cause amyloid formation in the pancreas, which could progressively destroy the insulin-secreting beta cells.
3235 15176482 The major neuropathological lesions defining Alzheimer's disease (AD) include neurofibrillary tangles and amyloid plaques, which are mainly composed of abnormally phosphorylated tau and amyloid-beta (A beta), respectively.
3236 15176482 Cerebral ischemia, chronically up-regulates expression of the amyloid precursor protein (APP), which is the precursor to the amyloid beta peptide and damages the blood-brain barrier (BBB), affecting A beta peptide clearance from the brain.
3237 15176482 The major neuropathological lesions defining Alzheimer's disease (AD) include neurofibrillary tangles and amyloid plaques, which are mainly composed of abnormally phosphorylated tau and amyloid-beta (A beta), respectively.
3238 15176482 Cerebral ischemia, chronically up-regulates expression of the amyloid precursor protein (APP), which is the precursor to the amyloid beta peptide and damages the blood-brain barrier (BBB), affecting A beta peptide clearance from the brain.
3239 15181049 We have recently demonstrated a potent antiinflammatory effect of troglitazone, an agonist of peroxisome proliferator-activated receptor gamma (PPARgamma) and a partial agonist of PPARalpha in both the nondiabetic obese and diabetic obese subjects.
3240 15181049 Nuclear factor kappaB (NFkappaB)-binding activity in mononuclear cells, plasma monocyte chemoattractant protein-1 (MCP-1), TNF-alpha, soluble intercellular adhesion molecule-1, C-reactive protein (CRP), and serum amyloid A (SAA) were measured.
3241 15181049 Rosiglitazone treatment resulted in a reduction in plasma MCP-1 and CRP in both groups (P < 0.05).
3242 15181049 Plasma TNF-alpha and SAA concentrations were inhibited significantly in the obese group (P < 0.05) but not in the obese diabetic subjects.
3243 15181049 NFkappaB-binding activity and plasma MCP-1, CRP, SAA, and TNF-alpha did not change in the obese and obese diabetic control groups.
3244 15220196 Specifically, the mBMDS cells expressed multiple genes related to pancreatic beta-cell development and function (insulin I and II, Glut2, glucose kinase, islet amyloid polypeptide, nestin, pancreatic duodenal homeobox-1 [PDX-1], and Pax6).
3245 15243700 Mutation at position -132 in the islet amyloid polypeptide ( IAPP) gene promoter enhances basal transcriptional activity through a new CRE-like binding site.
3246 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3247 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3248 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3249 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3250 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3251 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3252 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3253 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3254 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3255 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3256 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3257 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3258 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3259 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3260 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3261 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3262 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3263 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3264 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3265 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3266 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3267 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3268 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3269 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3270 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3271 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3272 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3273 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3274 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3275 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3276 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3277 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3278 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3279 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3280 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3281 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3282 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3283 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3284 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3285 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3286 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3287 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3288 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3289 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3290 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3291 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3292 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3293 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3294 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3295 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3296 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3297 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3298 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3299 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3300 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3301 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3302 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3303 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3304 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3305 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3306 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3307 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3308 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3309 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3310 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3311 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3312 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3313 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3314 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3315 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3316 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3317 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3318 15259000 Glycosylphosphatidylinositol-specific phospholipase D immunoreactivity is present in islet amyloid in type 2 diabetes.
3319 15259000 Since GPI-PLD is synthesized by, and secreted from, pancreatic islet beta cells, the present study examined the hypothesis that GPI-PLD associates with islet amyloid.
3320 15259000 Fibril formation from human islet amyloid polypeptide was determined in the absence or presence of GPI-PLD.
3321 15259000 In non-diabetics, GPI-PLD immunoreactivity was present and co-localized with insulin, as opposed to co-localizing with amyloid in diabetics.
3322 15259000 No immunoreactivity for apolipoprotein A-I was present in islet cells or islet amyloid.
3323 15259000 Heparan sulphate proteoglycan, which is commonly present in most amyloid, bound GPI-PLD in vitro.
3324 15259000 GPI-PLD inhibited the formation of amyloid fibrils from synthetic islet amyloid polypeptide in vitro.
3325 15259000 GPI-PLD is therefore present in islet amyloid and appears to derive from local production from islets.
3326 15259000 Since GPI-PLD also inhibited islet amyloid polypeptide fibril formation in vitro, it is concluded that GPI-PLD may play a role in islet amyloid formation in type 2 diabetes.
3327 15279557 In a similar way, the glycation rate of hemoglobin, isolated from diabetic blood and of beta-2-microglobulin isolated from amyloid plaques from uremic patients was determined.
3328 15285718 Alternative translation initiation generates a novel isoform of insulin-degrading enzyme targeted to mitochondria.
3329 15285718 IDE (insulin-degrading enzyme) is a widely expressed zinc-metallopeptidase that has been shown to regulate both cerebral amyloid beta-peptide and plasma insulin levels in vivo.
3330 15286457 On the other hand, the macrophage migration inhibitory factor (MIF) is a cytokine with multiple biological activities, including the ability to act as potent amyloid beta (A-beta)-binding protein.
3331 15286457 Two common polymorphisms have been recently detected in the genes encoding for CRP and MIF and have been associated with significant modifications of plasma levels and activity of the corresponding proteins.
3332 15286457 Following these observations, we hypothesized that CRP and MIF gene polymorphisms might contribute to the development and progression of neurodegenerative disorders and evaluated their association with AD.
3333 15286457 CRP and MIF gene polymorphisms were examined by polymerase chain reaction and restriction enzyme analysis in 116 Italian subjects affected by probable AD and 184 age- and sex-matched controls.
3334 15286457 We did not find a statistically significant difference in the distribution of CRP and MIF genotypes and alleles between AD subjects and controls.
3335 15286457 Although these data need further confirmation, they indicate that CRP and MIF gene polymorphisms are not associated with AD.
3336 15292167 Amyloidogenicity and cytotoxicity of recombinant mature human islet amyloid polypeptide (rhIAPP).
3337 15292167 Pancreatic amyloid plaques formed by the pancreatic islet amyloid polypeptide (IAPP) are present in more than 95% of type II diabetes mellitus patients, and their abundance correlates with the severity of the disease.
3338 15292167 Amyloidogenicity and cytotoxicity of recombinant mature human islet amyloid polypeptide (rhIAPP).
3339 15292167 Pancreatic amyloid plaques formed by the pancreatic islet amyloid polypeptide (IAPP) are present in more than 95% of type II diabetes mellitus patients, and their abundance correlates with the severity of the disease.
3340 15292279 Islet amyloid deposition is a pathogenic feature of type 2 diabetes, and these deposits contain the unique amyloidogenic peptide islet amyloid polypeptide.
3341 15292279 Furthermore, the extent of amyloid deposition is associated with both loss of beta-cell mass and impairment in insulin secretion and glucose metabolism, suggesting a causative role for islet amyloid in the islet lesion of type 2 diabetes.
3342 15292279 These animal studies have also shown that beta-cell dysfunction seems to be an important prerequisite for islet amyloid formation, with increased secretory demand from obesity and/or insulin resistance acting to further increase islet amyloid deposition.
3343 15292279 Recent in vitro studies suggest that the cytotoxic species responsible for islet amyloid-induced beta-cell death are formed during the very early stages of islet amyloid formation, when islet amyloid polypeptide aggregation commences.
3344 15292279 Islet amyloid deposition is a pathogenic feature of type 2 diabetes, and these deposits contain the unique amyloidogenic peptide islet amyloid polypeptide.
3345 15292279 Furthermore, the extent of amyloid deposition is associated with both loss of beta-cell mass and impairment in insulin secretion and glucose metabolism, suggesting a causative role for islet amyloid in the islet lesion of type 2 diabetes.
3346 15292279 These animal studies have also shown that beta-cell dysfunction seems to be an important prerequisite for islet amyloid formation, with increased secretory demand from obesity and/or insulin resistance acting to further increase islet amyloid deposition.
3347 15292279 Recent in vitro studies suggest that the cytotoxic species responsible for islet amyloid-induced beta-cell death are formed during the very early stages of islet amyloid formation, when islet amyloid polypeptide aggregation commences.
3348 15292279 Islet amyloid deposition is a pathogenic feature of type 2 diabetes, and these deposits contain the unique amyloidogenic peptide islet amyloid polypeptide.
3349 15292279 Furthermore, the extent of amyloid deposition is associated with both loss of beta-cell mass and impairment in insulin secretion and glucose metabolism, suggesting a causative role for islet amyloid in the islet lesion of type 2 diabetes.
3350 15292279 These animal studies have also shown that beta-cell dysfunction seems to be an important prerequisite for islet amyloid formation, with increased secretory demand from obesity and/or insulin resistance acting to further increase islet amyloid deposition.
3351 15292279 Recent in vitro studies suggest that the cytotoxic species responsible for islet amyloid-induced beta-cell death are formed during the very early stages of islet amyloid formation, when islet amyloid polypeptide aggregation commences.
3352 15292279 Islet amyloid deposition is a pathogenic feature of type 2 diabetes, and these deposits contain the unique amyloidogenic peptide islet amyloid polypeptide.
3353 15292279 Furthermore, the extent of amyloid deposition is associated with both loss of beta-cell mass and impairment in insulin secretion and glucose metabolism, suggesting a causative role for islet amyloid in the islet lesion of type 2 diabetes.
3354 15292279 These animal studies have also shown that beta-cell dysfunction seems to be an important prerequisite for islet amyloid formation, with increased secretory demand from obesity and/or insulin resistance acting to further increase islet amyloid deposition.
3355 15292279 Recent in vitro studies suggest that the cytotoxic species responsible for islet amyloid-induced beta-cell death are formed during the very early stages of islet amyloid formation, when islet amyloid polypeptide aggregation commences.
3356 15321714 Islet amyloid polypeptide (IAPP) is a 37-residue hormone that forms cytotoxic amyloid fibers in the endocrine pancreas of patients with type II diabetes (NIDDM).
3357 15358791 Identifying structural features of fibrillar islet amyloid polypeptide using site-directed spin labeling.
3358 15358791 Pancreatic amyloid deposits, composed primarily of the 37-residue islet amyloid polypeptide (IAPP), are a characteristic feature found in more than 90% of patients with type II diabetes.
3359 15358791 Identifying structural features of fibrillar islet amyloid polypeptide using site-directed spin labeling.
3360 15358791 Pancreatic amyloid deposits, composed primarily of the 37-residue islet amyloid polypeptide (IAPP), are a characteristic feature found in more than 90% of patients with type II diabetes.
3361 15464829 The SAMP8 mouse, a model of Alzheimer's disease, has an age-related impairment in learning and memory and an increase in brain levels of amyloid precursor protein (APP) and amyloid beta protein (Abeta).
3362 15527771 Islet amyloid polypeptide-induced membrane leakage involves uptake of lipids by forming amyloid fibers.
3363 15527771 Fibril formation of islet amyloid polypeptide (IAPP) is associated with cell death of the insulin-producing pancreatic beta-cells in patients with Type 2 Diabetes Mellitus.
3364 15527771 Islet amyloid polypeptide-induced membrane leakage involves uptake of lipids by forming amyloid fibers.
3365 15527771 Fibril formation of islet amyloid polypeptide (IAPP) is associated with cell death of the insulin-producing pancreatic beta-cells in patients with Type 2 Diabetes Mellitus.
3366 15533050 Inhibition of islet amyloid polypeptide fibril formation: a potential role for heteroaromatic interactions.
3367 15533050 Here, we demonstrate efficient inhibition of amyloid formation of the type 2 diabetes-related human islet amyloid polypeptide (hIAPP) by a modified aromatic peptide fragment and a small aromatic polyphenol molecule.
3368 15533050 Inhibition of islet amyloid polypeptide fibril formation: a potential role for heteroaromatic interactions.
3369 15533050 Here, we demonstrate efficient inhibition of amyloid formation of the type 2 diabetes-related human islet amyloid polypeptide (hIAPP) by a modified aromatic peptide fragment and a small aromatic polyphenol molecule.
3370 15570177 The objective of this study was to find out which N-terminal segment/s of amyloid precursor protein (APP) has any neurotrophic properties, since soluble APP-alpha (sAPP-alpha) has neurotrophic effects.
3371 15590928 Insulin-degrading enzyme as a downstream target of insulin receptor signaling cascade: implications for Alzheimer's disease intervention.
3372 15590928 Insulin-degrading enzyme (IDE) is one of the proteins that has been demonstrated to play a key role in degrading beta-amyloid (Abeta) monomer in vitro and in vivo, raising the possibility of upregulating IDE as an approach to reduce Abeta.
3373 15590928 Because one of the main functions of IDE is to degrade insulin, we hypothesized that there is a negative feedback mechanism whereby stimulation of insulin receptor-mediated signaling upregulates IDE to prevent chronic activation of the pathway.
3374 15590928 We show that treatment of primary hippocampal neurons with insulin increased IDE protein levels by approximately 25%.
3375 15590928 Insulin treatment also led to phosphatidylinositol-3 (PI3) kinase activation evidenced by Akt phosphorylation, which was blocked by PI3 kinase inhibitors, wortmannin and LY 294002.
3376 15590928 Inhibition of PI3 kinase abolished the IDE upregulation by insulin, indicating a cause-effect relationship between insulin signaling and IDE upregulation.
3377 15590928 Further support for this link was provided by the findings that deficient insulin signaling (decreased PI3 kinase subunit P85) was correlated with reduced IDE in Alzheimer's disease (AD) brains and in Tg2576 Swedish amyloid precursor protein transgenic mice fed a safflower oil-enriched ("Bad") diet used to accelerate pathogenesis.
3378 15590928 Consistent with IDE function in the degradation of Abeta monomer, the IDE decrease in the Bad diet-fed Tg2576 mice was associated with increased Abeta monomer levels.
3379 15590928 These in vitro and in vivo analyses validate the use of enhanced CNS insulin signaling as a potential strategy for AD intervention to correct the IDE defects occurring in AD.
3380 15618358 Role of carboxypeptidase E in processing of pro-islet amyloid polypeptide in {beta}-cells.
3381 15618358 Islet amyloid polypeptide (IAPP; amylin) is a peptide hormone that is cosecreted with insulin from beta-cells.
3382 15618358 In this study, we investigated the role of carboxypeptidase E (CPE) in the processing of proIAPP using mice lacking active CPE (Cpe(fat)/Cpe(fat)) and NIT-2 cells, a beta-cell line derived from their islets.
3383 15618358 Impaired proIAPP processing was associated with a decrease in PC2 (but not PC1/3) and both the 21- and 27-kDa forms of the PC2 chaperone protein 7B2, suggesting that PC2-mediated processing of proIAPP at its NH(2) terminus was impaired in the absence of CPE.
3384 15618358 We conclude that lack of CPE in islet beta-cells results in a marked decrease in processing of proIAPP at its NH(2) (but not COOH) terminus that is associated with attenuated levels of PC2 and (pro)7B2 and a great reduction in formation of mature amidated IAPP.
3385 15618358 Role of carboxypeptidase E in processing of pro-islet amyloid polypeptide in {beta}-cells.
3386 15618358 Islet amyloid polypeptide (IAPP; amylin) is a peptide hormone that is cosecreted with insulin from beta-cells.
3387 15618358 In this study, we investigated the role of carboxypeptidase E (CPE) in the processing of proIAPP using mice lacking active CPE (Cpe(fat)/Cpe(fat)) and NIT-2 cells, a beta-cell line derived from their islets.
3388 15618358 Impaired proIAPP processing was associated with a decrease in PC2 (but not PC1/3) and both the 21- and 27-kDa forms of the PC2 chaperone protein 7B2, suggesting that PC2-mediated processing of proIAPP at its NH(2) terminus was impaired in the absence of CPE.
3389 15618358 We conclude that lack of CPE in islet beta-cells results in a marked decrease in processing of proIAPP at its NH(2) (but not COOH) terminus that is associated with attenuated levels of PC2 and (pro)7B2 and a great reduction in formation of mature amidated IAPP.
3390 15710403 Neutron diffraction reveals sequence-specific membrane insertion of pre-fibrillar islet amyloid polypeptide and inhibition by rifampicin.
3391 15710403 Human islet amyloid polypeptide (hIAPP) forms amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM).
3392 15710403 Neutron diffraction reveals sequence-specific membrane insertion of pre-fibrillar islet amyloid polypeptide and inhibition by rifampicin.
3393 15710403 Human islet amyloid polypeptide (hIAPP) forms amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM).
3394 15750215 Impaired insulin and insulin-like growth factor expression and signaling mechanisms in Alzheimer's disease--is this type 3 diabetes?
3395 15750215 The present work demonstrates extensive abnormalities in insulin and insulin-like growth factor type I and II (IGF-I and IGF-II) signaling mechanisms in brains with AD, and shows that while each of the corresponding growth factors is normally made in central nervous system (CNS) neurons, the expression levels are markedly reduced in AD.
3396 15750215 These abnormalities were associated with reduced levels of insulin receptor substrate (IRS) mRNA, tau mRNA, IRS-associated phosphotidylinositol 3-kinase, and phospho-Akt (activated), and increased glycogen synthase kinase-3beta activity and amyloid precursor protein mRNA expression.
3397 15750215 The strikingly reduced CNS expression of genes encoding insulin, IGF-I, and IGF-II, as well as the insulin and IGF-I receptors, suggests that AD may represent a neuro-endocrine disorder that resembles, yet is distinct from diabetes mellitus.
3398 15755688 Insulin protects against amyloid beta-peptide toxicity in brain mitochondria of diabetic rats.
3399 15755688 We observed that STZ-induced diabetes promoted a significant decrease in mitochondrial CoQ9, ATPase activity, and a lower capacity of mitochondria to accumulate Ca2+ when compared with control and insulin-treated diabetic rats.
3400 15755688 However, in the presence of amyloid beta-peptide, insulin seems to prevent the decline in mitochondrial oxidative phosphorylation efficiency and avoids an increase in oxidative stress, improving or preserving the function of neurons under adverse conditions, such as Alzheimer's disease.
3401 15755688 Insulin protects against amyloid beta-peptide toxicity in brain mitochondria of diabetic rats.
3402 15755688 We observed that STZ-induced diabetes promoted a significant decrease in mitochondrial CoQ9, ATPase activity, and a lower capacity of mitochondria to accumulate Ca2+ when compared with control and insulin-treated diabetic rats.
3403 15755688 However, in the presence of amyloid beta-peptide, insulin seems to prevent the decline in mitochondrial oxidative phosphorylation efficiency and avoids an increase in oxidative stress, improving or preserving the function of neurons under adverse conditions, such as Alzheimer's disease.
3404 15778964 Molecular dynamics simulation of the aggregation of the core-recognition motif of the islet amyloid polypeptide in explicit water.
3405 15778964 Here, we used molecular dynamics simulations to study the initial self-assembly stages of the NH2-NFGAIL-COOH peptide, the core-recognition motif of the type II diabetes associated islet amyloid polypeptide.
3406 15778964 Molecular dynamics simulation of the aggregation of the core-recognition motif of the islet amyloid polypeptide in explicit water.
3407 15778964 Here, we used molecular dynamics simulations to study the initial self-assembly stages of the NH2-NFGAIL-COOH peptide, the core-recognition motif of the type II diabetes associated islet amyloid polypeptide.
3408 15784251 Transthyretin is an amyloidogenic protein which is involved in familial amyloid polyneuropathy, the most common form of systemic amyloid disease.
3409 15791482 Transversal sections of head, body and tail segments were stained with synaptophysin combined with Congo red to map/quantify islet tissue and amyloid.
3410 15802374 Processing of pro-islet amyloid polypeptide in the constitutive and regulated secretory pathways of beta cells.
3411 15802374 Islet amyloid is a pathologic characteristic of the pancreas in type 2 diabetes comprised mainly of the beta-cell peptide islet amyloid polypeptide (IAPP; amylin).
3412 15802374 We conclude that normal processing of proIAPP is a two-step process initiated by cleavage at its COOH terminus (likely by prohormone convertase 1/3 in the TGN) followed by cleavage at its NH2 terminus (by prohormone convertase 2 in granules) to form IAPP.
3413 15802374 Processing of pro-islet amyloid polypeptide in the constitutive and regulated secretory pathways of beta cells.
3414 15802374 Islet amyloid is a pathologic characteristic of the pancreas in type 2 diabetes comprised mainly of the beta-cell peptide islet amyloid polypeptide (IAPP; amylin).
3415 15802374 We conclude that normal processing of proIAPP is a two-step process initiated by cleavage at its COOH terminus (likely by prohormone convertase 1/3 in the TGN) followed by cleavage at its NH2 terminus (by prohormone convertase 2 in granules) to form IAPP.
3416 15803463 Template-directed self-assembly and growth of insulin amyloid fibrils.
3417 15803463 In the present work, we developed a novel, synthetic amyloid template by attaching amyloid seeds covalently onto an N-hydroxysuccinimide-activated surface, where insulin was chosen as a model amyloidogenic protein.
3418 15803463 According to ex situ atomic force microscopy observations, insulin monomers in solution were deposited onto the synthetic amyloid template to form fibrils, like hair growth.
3419 15803463 The amyloid deposition rate followed saturation kinetics with respect to insulin concentration in the solution.
3420 15803463 Template-directed self-assembly and growth of insulin amyloid fibrils.
3421 15803463 In the present work, we developed a novel, synthetic amyloid template by attaching amyloid seeds covalently onto an N-hydroxysuccinimide-activated surface, where insulin was chosen as a model amyloidogenic protein.
3422 15803463 According to ex situ atomic force microscopy observations, insulin monomers in solution were deposited onto the synthetic amyloid template to form fibrils, like hair growth.
3423 15803463 The amyloid deposition rate followed saturation kinetics with respect to insulin concentration in the solution.
3424 15803463 Template-directed self-assembly and growth of insulin amyloid fibrils.
3425 15803463 In the present work, we developed a novel, synthetic amyloid template by attaching amyloid seeds covalently onto an N-hydroxysuccinimide-activated surface, where insulin was chosen as a model amyloidogenic protein.
3426 15803463 According to ex situ atomic force microscopy observations, insulin monomers in solution were deposited onto the synthetic amyloid template to form fibrils, like hair growth.
3427 15803463 The amyloid deposition rate followed saturation kinetics with respect to insulin concentration in the solution.
3428 15803463 Template-directed self-assembly and growth of insulin amyloid fibrils.
3429 15803463 In the present work, we developed a novel, synthetic amyloid template by attaching amyloid seeds covalently onto an N-hydroxysuccinimide-activated surface, where insulin was chosen as a model amyloidogenic protein.
3430 15803463 According to ex situ atomic force microscopy observations, insulin monomers in solution were deposited onto the synthetic amyloid template to form fibrils, like hair growth.
3431 15803463 The amyloid deposition rate followed saturation kinetics with respect to insulin concentration in the solution.
3432 15823385 Several mechanisms have been proposed, including increased non-esterified fatty acids, inflammatory cytokines, adipokines, and mitochondrial dysfunction for insulin resistance, and glucotoxicity, lipotoxicity, and amyloid formation for beta-cell dysfunction.
3433 15823385 Moreover, the disease has a strong genetic component, but only a handful of genes have been identified so far: genes for calpain 10, potassium inward-rectifier 6.2, peroxisome proliferator-activated receptor gamma, insulin receptor substrate-1, and others.
3434 15823718 AD is characterized pathologically by the presence of senile plaques and neurofibrillary tangles (NFTs), the major constituents of which are the amyloid beta protein (Abeta) and tau protein, respectively.
3435 15823718 Glycation of Abeta markedly enhances its aggregation in vitro, and the glycation of tau, in addition to hyperphosphorylation, appears to enhance the formation of paired helical filaments.
3436 15826250 In type 2 diabetes, beta islet cells die by cytotoxic effects of smaller amylin (islet amyloid polypeptide, IAPP) aggregates, and the interstitial space created by the necrotic beta cells is replaced by larger IAPP aggregates, to form complex, polymerized islet amyloid.
3437 15843464 In vivo fragmentation of heparan sulfate by heparanase overexpression renders mice resistant to amyloid protein A amyloidosis.
3438 15843464 We have generated transgenic mice that overexpress human heparanase and have tested their susceptibility to amyloid induction.
3439 15843464 By contrast, the spleens of transgenic mice that failed to significantly overexpress heparanase contained heparan sulfate chains similar in size to those of control spleen and remained susceptible to amyloid deposition.
3440 15843464 In vivo fragmentation of heparan sulfate by heparanase overexpression renders mice resistant to amyloid protein A amyloidosis.
3441 15843464 We have generated transgenic mice that overexpress human heparanase and have tested their susceptibility to amyloid induction.
3442 15843464 By contrast, the spleens of transgenic mice that failed to significantly overexpress heparanase contained heparan sulfate chains similar in size to those of control spleen and remained susceptible to amyloid deposition.
3443 15843464 In vivo fragmentation of heparan sulfate by heparanase overexpression renders mice resistant to amyloid protein A amyloidosis.
3444 15843464 We have generated transgenic mice that overexpress human heparanase and have tested their susceptibility to amyloid induction.
3445 15843464 By contrast, the spleens of transgenic mice that failed to significantly overexpress heparanase contained heparan sulfate chains similar in size to those of control spleen and remained susceptible to amyloid deposition.
3446 15850385 Alternative splicing of human insulin-degrading enzyme yields a novel isoform with a decreased ability to degrade insulin and amyloid beta-protein.
3447 15850385 Deletion of insulin-degrading enzyme (IDE) in mice causes accumulation of cerebral amyloid beta-protein (Abeta), hyperinsulinemia, and glucose intolerance.
3448 15850385 Here, we systematically characterize human IDE mRNAs, identify a novel splice form, and compare its subcellular distribution, kinetic properties, and ability to degrade Abeta to the known isoform.
3449 15850385 The apparent K(m) values of recombinant 15b-IDE for both insulin and Abeta are significantly higher and the k(cat) and catalytic efficiency markedly lower than those of 15a-IDE.
3450 15850385 Alternative splicing of human insulin-degrading enzyme yields a novel isoform with a decreased ability to degrade insulin and amyloid beta-protein.
3451 15850385 Deletion of insulin-degrading enzyme (IDE) in mice causes accumulation of cerebral amyloid beta-protein (Abeta), hyperinsulinemia, and glucose intolerance.
3452 15850385 Here, we systematically characterize human IDE mRNAs, identify a novel splice form, and compare its subcellular distribution, kinetic properties, and ability to degrade Abeta to the known isoform.
3453 15850385 The apparent K(m) values of recombinant 15b-IDE for both insulin and Abeta are significantly higher and the k(cat) and catalytic efficiency markedly lower than those of 15a-IDE.
3454 15878744 Islet amyloid polypeptide gene promoter polymorphisms are not associated with Type 2 diabetes or with the severity of islet amyloidosis.
3455 15878744 The over-expression of the islet amyloid polypeptide (IAPP) gene could be a causal factor for islet amyloidosis and beta-cell destruction in Type 2 diabetes (T2DM).
3456 15878744 Islet amyloid polypeptide gene promoter polymorphisms are not associated with Type 2 diabetes or with the severity of islet amyloidosis.
3457 15878744 The over-expression of the islet amyloid polypeptide (IAPP) gene could be a causal factor for islet amyloidosis and beta-cell destruction in Type 2 diabetes (T2DM).
3458 15896716 beta-cells die by apoptosis in type 1 diabetes as a result of autoimmune attack mediated by cytokines, and in type 2 diabetes by various perpetrators including human islet amyloid polypeptide (hIAPP).
3459 15896716 Both proliferating and growth-arrested cells expressing p35 manifested increased resistance to cytokines and hIAPP, compared with control cells, as judged by cell viability, DNA fragmentation, and caspase-3 activity assays. p35 was significantly more protective in growth-arrested, compared with proliferating, cells.
3460 15896716 No significant differences were observed in proliferation and insulin content between cells expressing p35 and control cells.
3461 15896716 In contrast, p35 manifested a perturbing effect on glucose-induced insulin secretion.
3462 15917096 Plasma amyloid beta protein 42 in non-demented persons aged 75 years: effects of concomitant medication and medial temporal lobe atrophy.
3463 15917096 In the multiple regression analysis considering possible interactions between various medications statin users showed a significant decrease of Abeta42; insulin users had again significantly higher and long-term gingko biloba users lower plasma Abeta42 levels.
3464 15929864 Aggregation of the beta-cell product islet amyloid polypeptide (IAPP) is believed to be an important event in the development of the beta-cell lesion in type 2 diabetes.
3465 15938041 In 74 patients with type 2 diabetes (23 normoalbuminuric, 30 microalbuminuric, and 21 proteinuric) fibrinogen, serum amyloid A protein (SAA), C-reactive protein (CRP), and IL-6 were determined.
3466 15938041 CRP, fibrinogen, SAA, and IL-6 differed among groups, with proteinuric patients having the highest levels.
3467 15938041 In patients with increased GBM width (> 396 nm), CRP, SAA, and IL-6 were higher than in patients with normal GBM width (P < 0.003, P < 0.004, and P < 0.0004, respectively).
3468 15939073 Urinary 15-keto-dihydro-PGF(2alpha) (a major metabolite of PGF(2alpha)), serum interleukin-6 (IL-6) and high sensitivity C-reactive protein (hsCRP), serum amyloid protein A (SAA), urinary 8-iso-PGF(2alpha) (an F(2)-isoprostane, indicator of oxidative stress), and serum alpha-tocopherol were quantified in a population-based sample (n = 642) of 77-year old men without diabetes.
3469 15975085 Why diabetes would increase the likelihood of Alzheimer's disease is not immediately clear, although recent studies have demonstrated an impact of insulin abnormalities, insulin resistance and advanced glycation end products on both the development of neural amyloid plaques and neurofibrillary tangles.
3470 15983213 The amyloid present in the islets of Langerhans in type 2 diabetes is polymerized islet amyloid polypeptide (IAPP).
3471 15983213 This step is performed by the prohormone convertases PC2 and PC1/3.
3472 15983213 PC2 processes proIAPP preferably at the NH2-terminal processing site, and PC1/3 processes proIAPP exclusively at the COOH-terminal site.
3473 15983213 Additionally, h-proIAPP was transfected into three different pituitary-derived cell lines with different prohormone convertase profiles: AtT-20 cells (deficient in PC2), GH3 cells (deficient in PC1/3), and GH4C1 cells (deficient in both convertases).
3474 15983227 Long-term treatment with rosiglitazone and metformin reduces the extent of, but does not prevent, islet amyloid deposition in mice expressing the gene for human islet amyloid polypeptide.
3475 15983227 Rosiglitazone and metformin act by different mechanisms to improve insulin sensitivity and thereby reduce beta-cell secretory demand, resulting in decreased release of insulin and islet amyloid polypeptide (IAPP), the unique constituent of islet amyloid deposits.
3476 15983227 At the end of the study, islet amyloid prevalence (percent islets containing amyloid) and severity (percent islet area occupied by amyloid), islet mass, beta-cell mass, and insulin release were determined.
3477 15983227 Long-term treatment with rosiglitazone and metformin reduces the extent of, but does not prevent, islet amyloid deposition in mice expressing the gene for human islet amyloid polypeptide.
3478 15983227 Rosiglitazone and metformin act by different mechanisms to improve insulin sensitivity and thereby reduce beta-cell secretory demand, resulting in decreased release of insulin and islet amyloid polypeptide (IAPP), the unique constituent of islet amyloid deposits.
3479 15983227 At the end of the study, islet amyloid prevalence (percent islets containing amyloid) and severity (percent islet area occupied by amyloid), islet mass, beta-cell mass, and insulin release were determined.
3480 15983227 Long-term treatment with rosiglitazone and metformin reduces the extent of, but does not prevent, islet amyloid deposition in mice expressing the gene for human islet amyloid polypeptide.
3481 15983227 Rosiglitazone and metformin act by different mechanisms to improve insulin sensitivity and thereby reduce beta-cell secretory demand, resulting in decreased release of insulin and islet amyloid polypeptide (IAPP), the unique constituent of islet amyloid deposits.
3482 15983227 At the end of the study, islet amyloid prevalence (percent islets containing amyloid) and severity (percent islet area occupied by amyloid), islet mass, beta-cell mass, and insulin release were determined.
3483 16006679 Type 2 diabetes mellitus can be defined as a conformational disease because a constituent beta cell protein, islet amyloid polypeptide, undergoes a change in tertiary structure followed by self-association and tissue deposition.
3484 16006679 As the cell's quality control system becomes overwhelmed, conformational changes occur to islet amyloid polypeptide intermediates, generating stable oligomers with an anti-parallel crossed beta-pleated sheet structure that eventually accumulate as space-occupying lesions within the islets.
3485 16006679 Type 2 diabetes mellitus can be defined as a conformational disease because a constituent beta cell protein, islet amyloid polypeptide, undergoes a change in tertiary structure followed by self-association and tissue deposition.
3486 16006679 As the cell's quality control system becomes overwhelmed, conformational changes occur to islet amyloid polypeptide intermediates, generating stable oligomers with an anti-parallel crossed beta-pleated sheet structure that eventually accumulate as space-occupying lesions within the islets.
3487 16018852 Relation of left ventricular concentric remodeling to levels of C-reactive protein and serum amyloid A in patients with essential hypertension.
3488 16018852 In this study, we investigated possible relations between left ventricular (LV) concentric remodeling and plasma levels of high-sensitivity C-reactive protein (hs-CRP) and serum amyloid-A (SAA) in subjects who had essential hypertension; 65 consecutive subjects who had hypertension, did not have diabetes, and had normal LV mass were categorized as those whose LV relative wall thickness was <0.44 (n = 41) and those whose relative wall thickness was > or =0.44.
3489 16018852 In conclusion, alterations in LV geometry are associated with increased serum CRP and SAA levels in patients who are newly diagnosed with essential hypertension.
3490 16026359 There is also evidence for a link between pro-inflammatory cytokines and impairment of insulin-signalling pathways in the beta-cell, and the potential role of islet amyloid deposition in beta-cell deterioration continues to be a subject for debate.
3491 16036356 This study investigated the longitudinal association between serum selenium (s-Se) and a golden standard indicator of oxidative stress in vivo (8-iso-prostaglandin F2alpha, a major F2-isoprostane), an indicator of cyclooxygenase (COX)-mediated inflammation (prostaglandin F2alpha), high sensitive C-reactive protein (hsCRP), interleukin-6 (IL-6) and serum amyloid A protein (SAA) in a follow-up study of 27 years.
3492 16036356 The status of oxidative stress and inflammation was evaluated in a re-investigation 27 years later by quantification of urinary 8-iso-PGF2alpha and 15-keto-dihydro-PGF2alpha (a major metabolite of PGF2alpha) and serum hsCRP, SAA and IL-6.
3493 16036356 The s-Se was not associated with hsCRP, SAA or IL-6 at follow-up.
3494 16039527 The pathogenesis of type II diabetes is associated with the aggregation of the 37-residue human islet amyloid polypeptide (hIAPP) into cytotoxic beta sheet aggregates and fibrils.
3495 16060675 Parallel beta-sheets and polar zippers in amyloid fibrils formed by residues 10-39 of the yeast prion protein Ure2p.
3496 16060675 We report the results of solid-state nuclear magnetic resonance (NMR) and atomic force microscopy measurements on amyloid fibrils formed by residues 10-39 of the yeast prion protein Ure2p (Ure2p(10)(-)(39)).
3497 16060675 Parallel beta-sheets and polar zippers in amyloid fibrils formed by residues 10-39 of the yeast prion protein Ure2p.
3498 16060675 We report the results of solid-state nuclear magnetic resonance (NMR) and atomic force microscopy measurements on amyloid fibrils formed by residues 10-39 of the yeast prion protein Ure2p (Ure2p(10)(-)(39)).
3499 16142909 Lipid membranes modulate the structure of islet amyloid polypeptide.
3500 16142909 The 37-residue islet amyloid polypeptide (IAPP) is thought to play an important role in the pathogenesis of type II diabetes.
3501 16142909 Lipid membranes modulate the structure of islet amyloid polypeptide.
3502 16142909 The 37-residue islet amyloid polypeptide (IAPP) is thought to play an important role in the pathogenesis of type II diabetes.
3503 16149573 [Islet amyloid polypeptide (IAPP)].
3504 16156481 Statins inhibit enzymes involved in the endogenous synthesis of cholesterol and evidence is mounting that they also affect enzymes in Abeta metabolism i.e. beta-secretase.
3505 16156481 This normalises the breakdown of the precursor of Abeta, amyloid precursor protein, thereby promoting the nonamyloidogenic pathway.
3506 16186174 Connective tissue growth factor (CTGF) expression in the brain is a downstream effector of insulin resistance- associated promotion of Alzheimer's disease beta-amyloid neuropathology.
3507 16186174 With this evidence we continued to explore the regulation of CTGF in postmortem AD brain tissue and found that CTGF expression correlated with the progression of AD clinical dementia and amyloid neuritic plaque (NP) neuropathology, but not neurofibrillary tangle (NFT) deposition.
3508 16186174 Consistent with this evidence, we also found that exposure of Tg2576 mice (a model AD-type amyloid neuropathology) to a diabetogenic diet that promotes IR results in a ~2-fold elevation in CTGF steady-state levels in the brain, coincident with a commensurate promotion of AD-type amyloid plaque burden.
3509 16186174 Finally, using in vitro cellular models of amyloid precursor protein (APP)-processing and Abeta generation/clearance, we confirmed that human recombinant (hr)CTGF may increase Abeta1-40 and Abeta1-42 peptide steady-state levels, possibly through a mechanism that involves gamma-secretase activation and decreased insulin-degrading enzyme (IDE) steady-state levels in a MAP kinase (MAPK)/ phosphatidylinositol 3-kinase (PI-3K)/protein kinase-B (AKT)1-dependent manner.
3510 16186174 Connective tissue growth factor (CTGF) expression in the brain is a downstream effector of insulin resistance- associated promotion of Alzheimer's disease beta-amyloid neuropathology.
3511 16186174 With this evidence we continued to explore the regulation of CTGF in postmortem AD brain tissue and found that CTGF expression correlated with the progression of AD clinical dementia and amyloid neuritic plaque (NP) neuropathology, but not neurofibrillary tangle (NFT) deposition.
3512 16186174 Consistent with this evidence, we also found that exposure of Tg2576 mice (a model AD-type amyloid neuropathology) to a diabetogenic diet that promotes IR results in a ~2-fold elevation in CTGF steady-state levels in the brain, coincident with a commensurate promotion of AD-type amyloid plaque burden.
3513 16186174 Finally, using in vitro cellular models of amyloid precursor protein (APP)-processing and Abeta generation/clearance, we confirmed that human recombinant (hr)CTGF may increase Abeta1-40 and Abeta1-42 peptide steady-state levels, possibly through a mechanism that involves gamma-secretase activation and decreased insulin-degrading enzyme (IDE) steady-state levels in a MAP kinase (MAPK)/ phosphatidylinositol 3-kinase (PI-3K)/protein kinase-B (AKT)1-dependent manner.
3514 16186174 Connective tissue growth factor (CTGF) expression in the brain is a downstream effector of insulin resistance- associated promotion of Alzheimer's disease beta-amyloid neuropathology.
3515 16186174 With this evidence we continued to explore the regulation of CTGF in postmortem AD brain tissue and found that CTGF expression correlated with the progression of AD clinical dementia and amyloid neuritic plaque (NP) neuropathology, but not neurofibrillary tangle (NFT) deposition.
3516 16186174 Consistent with this evidence, we also found that exposure of Tg2576 mice (a model AD-type amyloid neuropathology) to a diabetogenic diet that promotes IR results in a ~2-fold elevation in CTGF steady-state levels in the brain, coincident with a commensurate promotion of AD-type amyloid plaque burden.
3517 16186174 Finally, using in vitro cellular models of amyloid precursor protein (APP)-processing and Abeta generation/clearance, we confirmed that human recombinant (hr)CTGF may increase Abeta1-40 and Abeta1-42 peptide steady-state levels, possibly through a mechanism that involves gamma-secretase activation and decreased insulin-degrading enzyme (IDE) steady-state levels in a MAP kinase (MAPK)/ phosphatidylinositol 3-kinase (PI-3K)/protein kinase-B (AKT)1-dependent manner.
3518 16191216 In addition, amyloid beta protein appears directly involved in the degeneration of both the larger perforating arterial vessels as well as cerebral capillaries, which represent the blood-brain barrier.
3519 16198619 Peroxisome proliferator-activated receptor-gamma (PPARgamma) is a nuclear transcription factor that comprises the primary molecular target for thiazolidinedione (TZD) insulin-sensitizing drugs.
3520 16198619 Thus, TZDs have been shown to reduce plasma levels of the chemokine, monocyte chemotactic protein-1 (MCP-1), the anti-fibrinolytic protein, plasminogen activator inhibitor-1 (PAI-1), the endothelial cell adhesion molecules, e-selectin and inter-cellular adhesion molecule-1 (ICAM-1), the leucocyte-activating molecule, CD40L, and the tissue-remodeling enzyme, matrix metalloproteinase-9 (MMP-9).
3521 16198619 Further tangible evidence of a reduction by TZDs of systemic inflammation in patients with the classical metabolic syndrome stems from falls in the white blood cell count, P-selectin-positive platelets and in the acute-phase inflammatory proteins, C-reactive protein, serum amyloid A and fibrinogen.
3522 16198619 Here, these drugs improve insulin sensitivity for glucose metabolism, reduce hyperinsulinemia, hepatic steatosis, inflammation and fibrosis, and lower the circulating levels of liver transaminases (ALT, AST), alkaline phosphatase and gamma glutamyl transferase.
3523 16204373 Activation of peroxisome proliferator-activated receptor-gamma by rosiglitazone protects human islet cells against human islet amyloid polypeptide toxicity by a phosphatidylinositol 3'-kinase-dependent pathway.
3524 16225463 White adipose tissue is secreting several hormones, particularly leptin and adiponectin, and a variety of other protein signals: the adipocytokines.
3525 16225463 A growing list of adipocytokines involved in inflammation (IL-1beta, IL-6, IL-8, IL-10, TNF-alpha, TGF-beta,) and the acute-phase response (serum amyloid A, PAI-1) have been found to be increased in the metabolic syndrome.
3526 16246041 Increased risk of Alzheimer's disease in Type II diabetes: insulin resistance of the brain or insulin-induced amyloid pathology?
3527 16246041 Insulin also regulates the metabolism of beta-amyloid and tau, the building blocks of amyloid plaques and neurofibrillary tangles, the neuropathological hallmarks of Alzheimer's disease.
3528 16246041 Increased risk of Alzheimer's disease in Type II diabetes: insulin resistance of the brain or insulin-induced amyloid pathology?
3529 16246041 Insulin also regulates the metabolism of beta-amyloid and tau, the building blocks of amyloid plaques and neurofibrillary tangles, the neuropathological hallmarks of Alzheimer's disease.
3530 16303136 Islet amyloid polypeptide (IAPP; amylin) is responsible for amyloid formation in type-2 diabetes.
3531 16331989 The role of His-18 in amyloid formation by human islet amyloid polypeptide.
3532 16331989 The 37-residue islet amyloid polypeptide (IAPP) is the major protein component of the amyloid deposits found in type-II diabetes.
3533 16331989 The role of His-18 in amyloid formation by human islet amyloid polypeptide.
3534 16331989 The 37-residue islet amyloid polypeptide (IAPP) is the major protein component of the amyloid deposits found in type-II diabetes.
3535 16332384 The predominating theory on the pathophysiology of Alzheimer's disease (AD) concerns the mis-metabolism of amyloid precursor protein (APP).
3536 16332384 Statins may not only inhibit enzymes involved in the endogenous synthesis of cholesterol but also affect enzymes involved in Abeta metabolism, i.e., alpha-secretase and beta-secretase.
3537 16340082 Plasma levels of insulin and amyloid beta 42 are correlated in patients with amnestic Mild Cognitive Impairment.
3538 16340082 Epidemiological and experimental data suggest that type 2 diabetes (DM2) and sporadic late-onset Alzheimer's disease (AD) share a common mechanism, that is able to produce accumulation of insulin and amyloid beta 42 (Abeta42), the major pathogenic events respectively of the two conditions.
3539 16340082 Plasma levels of insulin and amyloid beta 42 are correlated in patients with amnestic Mild Cognitive Impairment.
3540 16340082 Epidemiological and experimental data suggest that type 2 diabetes (DM2) and sporadic late-onset Alzheimer's disease (AD) share a common mechanism, that is able to produce accumulation of insulin and amyloid beta 42 (Abeta42), the major pathogenic events respectively of the two conditions.
3541 16340083 Insulin and insulin-like growth factor expression and function deteriorate with progression of Alzheimer's disease: link to brain reductions in acetylcholine.
3542 16340083 Glucose utilization and energy metabolism are regulated by insulin and insulin-like growth factor I (IGF-I), and correspondingly, studies have shown that cognitive impairment may be improved by glucose or insulin administration.
3543 16340083 Recently, we demonstrated significantly reduced levels of insulin and IGF-I polypeptide genes and their corresponding receptors in advanced AD relative to aged control brains.
3544 16340083 Realtime quantitative RT-PCR analysis of frontal lobe tissue demonstrated that increasing AD Braak Stage was associated with progressively reduced levels of mRNA corresponding to insulin, IGF-I, and IGF-II polypeptides and their receptors, tau, which is regulated by insulin and IGF-I, and the Hu D neuronal RNA binding protein.
3545 16340083 In contrast, progressively increased levels of amyloid beta protein precursor (AbetaPP), glial fibrillary acidic protein, and the IBA1/AIF1 microglial mRNA transcripts were detected with increasing AD Braak Stage.
3546 16340083 Impairments in growth factor and growth factor receptor expression and function were associated with increasing AD Braak stage dependent reductions in insulin, IGF-I, and IGF-II receptor binding, ATP levels, and choline acetyltransferase (ChAT) expression.
3547 16340083 Further studies demonstrated that: 1) ChAT expression increases with insulin or IGF-I stimulation; 2) ChAT is expressed in insulin and IGF-I receptor-positive cortical neurons; and 3) ChAT co-localization in insulin or IGF-I receptor-positive neurons is reduced in AD.
3548 16361024 The findings of mechanistic studies suggest that vascular disease and alterations in glucose, insulin, and amyloid metabolism underlie the pathophysiology, but which of these mechanisms are clinically relevant is unclear.
3549 16403520 Islet amyloid polypeptide inserts into phospholipid monolayers as monomer.
3550 16403520 It is hypothesized that beta-cell death is related to interaction of the 37 amino acid residue human islet amyloid polypeptide (hIAPP), the major constituent of islet amyloid, with cellular membranes.
3551 16403520 Islet amyloid polypeptide inserts into phospholipid monolayers as monomer.
3552 16403520 It is hypothesized that beta-cell death is related to interaction of the 37 amino acid residue human islet amyloid polypeptide (hIAPP), the major constituent of islet amyloid, with cellular membranes.
3553 16415763 Several abnormalities in islet beta-cell and insulin secretion were also pointed out in elderly people such as increased amyloid deposition and decreased amylin secretion, impaired insulin secretion pulsatility, decreased insulin sensitivity of pancreatic beta-cells to insulinotropic gut hormones and diminished insulin response to non-glucose stimuli such as arginine.
3554 16467158 Design of a mimic of nonamyloidogenic and bioactive human islet amyloid polypeptide (IAPP) as nanomolar affinity inhibitor of IAPP cytotoxic fibrillogenesis.
3555 16467158 Aggregation of human islet amyloid polypeptide (IAPP) into pancreatic amyloid is strongly associated with the pathogenesis of type II diabetes.
3556 16467158 Design of a mimic of nonamyloidogenic and bioactive human islet amyloid polypeptide (IAPP) as nanomolar affinity inhibitor of IAPP cytotoxic fibrillogenesis.
3557 16467158 Aggregation of human islet amyloid polypeptide (IAPP) into pancreatic amyloid is strongly associated with the pathogenesis of type II diabetes.
3558 16505860 Formation of small, dense HDL particles with attenuated antiatherogenic activity can be mechanistically related to HDL enrichment in triglycerides and in serum amyloid A, depletion of cholesteryl esters, covalent modification of HDL apolipoproteins and attenuated antiatherogenic function of apolipoprotein AI.
3559 16510295 The receptor for advanced glycation endproducts (RAGE) is a multiligand receptor that binds a variety of structurally and functionally unrelated ligands, including advanced glycation endproducts (AGEs), amyloid fibrils, amphoterin, and members of the S100 family of proteins.
3560 16565054 We report investigations of the morphology and molecular structure of amyloid fibrils comprised of residues 10-40 of the Alzheimer's beta-amyloid peptide (Abeta(10-40)), prepared under various solution conditions and degrees of agitation.
3561 16565054 Omission of residues 1-9 from the full-length Alzheimer's beta-amyloid peptide (Abeta(1-40)) did not prevent the peptide from forming amyloid fibrils or eliminate fibril polymorphism.
3562 16565054 We report investigations of the morphology and molecular structure of amyloid fibrils comprised of residues 10-40 of the Alzheimer's beta-amyloid peptide (Abeta(10-40)), prepared under various solution conditions and degrees of agitation.
3563 16565054 Omission of residues 1-9 from the full-length Alzheimer's beta-amyloid peptide (Abeta(1-40)) did not prevent the peptide from forming amyloid fibrils or eliminate fibril polymorphism.
3564 16570161 Intracellular amyloid-like deposits contain unprocessed pro-islet amyloid polypeptide (proIAPP) in beta cells of transgenic mice overexpressing the gene for human IAPP and transplanted human islets.
3565 16574064 The C-terminal domain of human insulin degrading enzyme is required for dimerization and substrate recognition.
3566 16574064 Insulin degrading enzyme (IDE), a zinc metalloprotease, can specifically recognize and degrade insulin, as well as several amyloidogenic peptides such as amyloid beta (Abeta) and amylin.
3567 16574064 The disruption of IDE function in rodents leads to glucose intolerance and cerebral Abeta accumulation, hallmarks of type 2 diabetes and Alzheimer's disease, respectively.
3568 16574064 Fluorescence polarization assays using labeled insulin reveal that IDE-N has reduced affinity to insulin relative to wild type IDE.
3569 16627931 More recently, studies with human postmortem brain tissue linked many of the characteristic molecular and pathological features of AD to reduced expression of the insulin and insulin-like growth factor (IGF) genes and their corresponding receptors.
3570 16627931 The ic-STZ-injected rats did not have elevated blood glucose levels, and pancreatic architecture and insulin immunoreactivity were similar to control, yet their brains were reduced in size and exhibited neurodegeneration associated with cell loss, gliosis, and increased immunoreactivity for p53, active glycogen synthase kinase 3beta, phospho-tau, ubiquitin, and amyloid-beta.
3571 16627931 Real time quantitative RT-PCR studies demonstrated that the ic-STZ-treated brains had significantly reduced expression of genes corresponding to neurons, oligodendroglia, and choline acetyltransferase, and increased expression of genes encoding glial fibrillary acidic protein, microglia-specific proteins, acetylcholinesterase, tau, and amyloid precursor protein.
3572 16627931 These abnormalities were associated reduced expression of genes encoding insulin, IGF-II, insulin receptor, IGF-I receptor, and insulin receptor substrate-1, and reduced ligand binding to the insulin and IGF-II receptors.
3573 16754744 Two of these genes were serum amyloid A (SAA) and transmembrane 4 L six family member 1 (TM4SF1).
3574 16754744 Real-time RT-PCR analysis of SAA and TM4SF1 expression in adipocytes from seven subjects revealed 19-fold and 22-fold higher expression in the large cells, respectively, and a correlation between adipocyte size and both SAA and TM4SF1 expression.
3575 16754744 In comparison with 17 other human tissues and cell types by microarray, large adipocytes displayed by far the highest SAA and TM4SF1 expression.
3576 16772049 Solid-state nuclear magnetic resonance (NMR) measurements have made major contributions to our understanding of the molecular structures of amyloid fibrils, including fibrils formed by the beta-amyloid peptide associated with Alzheimer's disease, by proteins associated with fungal prions, and by a variety of other polypeptides.
3577 16774767 Insulin is a small, predominantly alpha-helical protein consisting of 51 residues in two disulfide-linked polypeptide chains that readily assembles into amyloid fibrils under conditions of low pH and elevated temperature.
3578 16774767 We demonstrate here that both the A-chain and the B-chain of insulin are capable of forming amyloid fibrils in isolation under similar conditions, with fibrillar morphologies that differ from those composed of intact insulin.
3579 16774767 Insulin is a small, predominantly alpha-helical protein consisting of 51 residues in two disulfide-linked polypeptide chains that readily assembles into amyloid fibrils under conditions of low pH and elevated temperature.
3580 16774767 We demonstrate here that both the A-chain and the B-chain of insulin are capable of forming amyloid fibrils in isolation under similar conditions, with fibrillar morphologies that differ from those composed of intact insulin.
3581 16786033 ApoE has roles in cholesterol metabolism and Abeta clearance, both of which are thought to be significant in AD pathogenesis.
3582 16786033 A diversity of topics is covered, including cholesterol metabolism, glucose regulation, diabetes, insulin, ApoE function, amyloid precursor protein metabolism, and in particular their relevance to AD.
3583 16787929 In this study, we explored whether proteases capable of degrading soluble Abeta (sAbeta) could degrade fAbeta as well.
3584 16787929 Only MMP-9 digests contained fragments (Abeta(1-20) and Abeta(1-30)) from fAbeta(1-42) substrate; the corresponding cleavage sites are thought to be important for beta-pleated sheet formation.
3585 16787929 To determine whether MMP-9 can degrade plaques formed in vivo, fresh brain slices from aged APP/PS1 mice were incubated with proteases.
3586 16787929 Consistent with a role for endogenous MMP-9 in this process in vivo, MMP-9 immunoreactivity was detected in astrocytes surrounding amyloid plaques in the brains of aged APP/PS1 and APPsw mice, and increased MMP activity was selectively observed in compact ThS-positive plaques.
3587 16788249 Two of the serum biomarkers matched with islet amyloid polypeptide and resistin in the SWISS-PROT knowledgebase.
3588 16804082 Beta-cell deficit due to increased apoptosis in the human islet amyloid polypeptide transgenic (HIP) rat recapitulates the metabolic defects present in type 2 diabetes.
3589 16804082 The islet anatomy in IFG and type 2 diabetes reveals an approximately 50 and 65% deficit in beta-cell mass, with increased beta-cell apoptosis and islet amyloid derived from islet amyloid polypeptide (IAPP).
3590 16804082 Beta-cell deficit due to increased apoptosis in the human islet amyloid polypeptide transgenic (HIP) rat recapitulates the metabolic defects present in type 2 diabetes.
3591 16804082 The islet anatomy in IFG and type 2 diabetes reveals an approximately 50 and 65% deficit in beta-cell mass, with increased beta-cell apoptosis and islet amyloid derived from islet amyloid polypeptide (IAPP).
3592 16804197 Islet amyloid polypeptide (IAPP) transgenic rodents as models for type 2 diabetes.
3593 16804197 The islet in type 2 diabetes mellitus (T2D) has deficient beta-cell mass due to increased beta-cell apoptosis and islet amyloid derived from islet amyloid polypeptide (IAPP).
3594 16804197 Islet amyloid polypeptide (IAPP) transgenic rodents as models for type 2 diabetes.
3595 16804197 The islet in type 2 diabetes mellitus (T2D) has deficient beta-cell mass due to increased beta-cell apoptosis and islet amyloid derived from islet amyloid polypeptide (IAPP).
3596 16804198 These features include age of onset of FDM in middle age, association with obesity, residual but declining insulin secretion, development of islet amyloid deposits, loss of approximately 50% of beta-cell mass, and development of complications in several organ systems including peripheral polyneuropathy and retinopathy.
3597 16804200 Initially there is hyperplasia of the islets with abundant insulin production typically followed by replacement of islets with islet-associated amyloid.
3598 16823976 Multiplexed affinity retrieval devices and methodology were developed to simultaneously target retinol binding protein, C-reactive protein, serum amyloid P component, as well as an added exogenous internal reference standard (staphylococcal enterotoxin B) for subsequent MALDI-TOF MS analysis.
3599 16823976 This approach allows for semiquantitative analysis of both retinol binding protein and serum amyloid P component while performing absolute quantitative measurements of C-reactive protein.
3600 16823976 Multiplexed affinity retrieval devices and methodology were developed to simultaneously target retinol binding protein, C-reactive protein, serum amyloid P component, as well as an added exogenous internal reference standard (staphylococcal enterotoxin B) for subsequent MALDI-TOF MS analysis.
3601 16823976 This approach allows for semiquantitative analysis of both retinol binding protein and serum amyloid P component while performing absolute quantitative measurements of C-reactive protein.
3602 16842191 The receptor for advanced glycation end products (RAGE) is a cell-bound receptor of the immunoglobulin superfamily which may be activated by a variety of proinflammatory ligands including advanced glycoxidation end products, S100/calgranulins, high mobility group box 1, and amyloid beta-peptide.
3603 16849627 Type 2 diabetes mellitus (T2DM) is characterized by an approximately 60% deficit in beta-cell mass, increased beta-cell apoptosis, and islet amyloid derived from islet amyloid polypeptide (IAPP).
3604 16866369 Characterization of the heparin binding site in the N-terminus of human pro-islet amyloid polypeptide: implications for amyloid formation.
3605 16866369 Islet amyloid polypeptide (IAPP), also referred to as amylin, aggregates in the islet extracellular space to form amyloid deposits in up to 95% of patients with the disease.
3606 16866369 IAPP is stored with insulin in beta-islet cells and is processed in parallel by subtilisin-like prohormone convertases prior to secretion.
3607 16866369 Immunohistochemical studies implicate the presence of the heparan sulfate proteoglycan (HSPG) perlecan in islet amyloid deposits, suggesting a role for HSPGs in mediating amyloid deposition in type 2 diabetes and implicating a binding domain in the N-terminus of proIAPP.
3608 16866369 Characterization of the heparin binding site in the N-terminus of human pro-islet amyloid polypeptide: implications for amyloid formation.
3609 16866369 Islet amyloid polypeptide (IAPP), also referred to as amylin, aggregates in the islet extracellular space to form amyloid deposits in up to 95% of patients with the disease.
3610 16866369 IAPP is stored with insulin in beta-islet cells and is processed in parallel by subtilisin-like prohormone convertases prior to secretion.
3611 16866369 Immunohistochemical studies implicate the presence of the heparan sulfate proteoglycan (HSPG) perlecan in islet amyloid deposits, suggesting a role for HSPGs in mediating amyloid deposition in type 2 diabetes and implicating a binding domain in the N-terminus of proIAPP.
3612 16866369 Characterization of the heparin binding site in the N-terminus of human pro-islet amyloid polypeptide: implications for amyloid formation.
3613 16866369 Islet amyloid polypeptide (IAPP), also referred to as amylin, aggregates in the islet extracellular space to form amyloid deposits in up to 95% of patients with the disease.
3614 16866369 IAPP is stored with insulin in beta-islet cells and is processed in parallel by subtilisin-like prohormone convertases prior to secretion.
3615 16866369 Immunohistochemical studies implicate the presence of the heparan sulfate proteoglycan (HSPG) perlecan in islet amyloid deposits, suggesting a role for HSPGs in mediating amyloid deposition in type 2 diabetes and implicating a binding domain in the N-terminus of proIAPP.
3616 16873681 Impaired NH2-terminal processing of human proislet amyloid polypeptide by the prohormone convertase PC2 leads to amyloid formation and cell death.
3617 16873681 Islet amyloid, formed by aggregation of islet amyloid polypeptide (IAPP; amylin), is a pathological characteristic of the pancreas in type 2 diabetes and may contribute to the progressive loss of beta-cells in this disease.
3618 16873681 GH3 cells lacking the prohormone convertase 1/3 (PC1/3) and IAPP and with very low levels of prohormone convertase 2 (PC2) were transduced with adenovirus (Ad) expressing human or rat (control) proIAPP linked to green fluorescent protein, with or without Ad-PC2 or Ad-PC1/3.
3619 16873681 COOH-terminal processing of human proIAPP by PC1/3 increased (hIAPP+PC1/3 10.4 +/- 0.7%; P < 0.05), whereas NH(2)-terminal processing of proIAPP by addition of PC2 markedly decreased (hIAPP+PC2 5.5 +/- 0.5%; P < 0.05) the number of apoptotic GH3 cells.
3620 16873681 Islets from mice lacking PC2 and with beta-cell expression of human proIAPP (hIAPP(+/+)/PC2(-/-)) developed amyloid associated with beta-cell death during 2-week culture.
3621 16873681 Rescue of PC2 expression by ex vivo transduction with Ad-PC2 restored NH(2)-terminal processing to mature IAPP and decreased both the extent of amyloid formation and the number of TUNEL-positive cells (-PC2 26.5 +/- 4.1% vs.
3622 16873681 Impaired NH2-terminal processing of human proislet amyloid polypeptide by the prohormone convertase PC2 leads to amyloid formation and cell death.
3623 16873681 Islet amyloid, formed by aggregation of islet amyloid polypeptide (IAPP; amylin), is a pathological characteristic of the pancreas in type 2 diabetes and may contribute to the progressive loss of beta-cells in this disease.
3624 16873681 GH3 cells lacking the prohormone convertase 1/3 (PC1/3) and IAPP and with very low levels of prohormone convertase 2 (PC2) were transduced with adenovirus (Ad) expressing human or rat (control) proIAPP linked to green fluorescent protein, with or without Ad-PC2 or Ad-PC1/3.
3625 16873681 COOH-terminal processing of human proIAPP by PC1/3 increased (hIAPP+PC1/3 10.4 +/- 0.7%; P < 0.05), whereas NH(2)-terminal processing of proIAPP by addition of PC2 markedly decreased (hIAPP+PC2 5.5 +/- 0.5%; P < 0.05) the number of apoptotic GH3 cells.
3626 16873681 Islets from mice lacking PC2 and with beta-cell expression of human proIAPP (hIAPP(+/+)/PC2(-/-)) developed amyloid associated with beta-cell death during 2-week culture.
3627 16873681 Rescue of PC2 expression by ex vivo transduction with Ad-PC2 restored NH(2)-terminal processing to mature IAPP and decreased both the extent of amyloid formation and the number of TUNEL-positive cells (-PC2 26.5 +/- 4.1% vs.
3628 16873681 Impaired NH2-terminal processing of human proislet amyloid polypeptide by the prohormone convertase PC2 leads to amyloid formation and cell death.
3629 16873681 Islet amyloid, formed by aggregation of islet amyloid polypeptide (IAPP; amylin), is a pathological characteristic of the pancreas in type 2 diabetes and may contribute to the progressive loss of beta-cells in this disease.
3630 16873681 GH3 cells lacking the prohormone convertase 1/3 (PC1/3) and IAPP and with very low levels of prohormone convertase 2 (PC2) were transduced with adenovirus (Ad) expressing human or rat (control) proIAPP linked to green fluorescent protein, with or without Ad-PC2 or Ad-PC1/3.
3631 16873681 COOH-terminal processing of human proIAPP by PC1/3 increased (hIAPP+PC1/3 10.4 +/- 0.7%; P < 0.05), whereas NH(2)-terminal processing of proIAPP by addition of PC2 markedly decreased (hIAPP+PC2 5.5 +/- 0.5%; P < 0.05) the number of apoptotic GH3 cells.
3632 16873681 Islets from mice lacking PC2 and with beta-cell expression of human proIAPP (hIAPP(+/+)/PC2(-/-)) developed amyloid associated with beta-cell death during 2-week culture.
3633 16873681 Rescue of PC2 expression by ex vivo transduction with Ad-PC2 restored NH(2)-terminal processing to mature IAPP and decreased both the extent of amyloid formation and the number of TUNEL-positive cells (-PC2 26.5 +/- 4.1% vs.
3634 16873681 Impaired NH2-terminal processing of human proislet amyloid polypeptide by the prohormone convertase PC2 leads to amyloid formation and cell death.
3635 16873681 Islet amyloid, formed by aggregation of islet amyloid polypeptide (IAPP; amylin), is a pathological characteristic of the pancreas in type 2 diabetes and may contribute to the progressive loss of beta-cells in this disease.
3636 16873681 GH3 cells lacking the prohormone convertase 1/3 (PC1/3) and IAPP and with very low levels of prohormone convertase 2 (PC2) were transduced with adenovirus (Ad) expressing human or rat (control) proIAPP linked to green fluorescent protein, with or without Ad-PC2 or Ad-PC1/3.
3637 16873681 COOH-terminal processing of human proIAPP by PC1/3 increased (hIAPP+PC1/3 10.4 +/- 0.7%; P < 0.05), whereas NH(2)-terminal processing of proIAPP by addition of PC2 markedly decreased (hIAPP+PC2 5.5 +/- 0.5%; P < 0.05) the number of apoptotic GH3 cells.
3638 16873681 Islets from mice lacking PC2 and with beta-cell expression of human proIAPP (hIAPP(+/+)/PC2(-/-)) developed amyloid associated with beta-cell death during 2-week culture.
3639 16873681 Rescue of PC2 expression by ex vivo transduction with Ad-PC2 restored NH(2)-terminal processing to mature IAPP and decreased both the extent of amyloid formation and the number of TUNEL-positive cells (-PC2 26.5 +/- 4.1% vs.
3640 16873699 Immunological parameters at baseline included high-sensitivity C-reactive protein (CRP), serum amyloid A, interleukin-6, regulated on activation normal T-cell expressed and secreted (RANTES), macrophage migration inhibitory factor (MIF), and soluble intercellular adhesion molecule.
3641 16873699 In the intervention group, progression to type 2 diabetes was significantly higher in subjects with the highest RANTES concentrations and was lower in subjects with the highest MIF levels.
3642 16873699 Ratios of RANTES to MIF in the upper tertile were highly predictive of incident type 2 diabetes in the intervention group (P = 0.006), whereas the association was less pronounced in the control group (P = 0.088).
3643 16878984 Conserved and cooperative assembly of membrane-bound alpha-helical states of islet amyloid polypeptide.
3644 16878984 In this work, we investigate these phenomena in islet amyloid polypeptide (IAPP).
3645 16878984 Conserved and cooperative assembly of membrane-bound alpha-helical states of islet amyloid polypeptide.
3646 16878984 In this work, we investigate these phenomena in islet amyloid polypeptide (IAPP).
3647 16894402 Insulin resistance and dysregulation of the degradation of neurotoxic amyloid and insulin appear at the core of the links between Alzheimer's disease and diabetes.
3648 16894402 Functions and expression of insulysin, an enzyme involved in the degradation of neurotoxic amyloid peptides and insulin, are usually impaired or reduced in Alzheimer's disease and diabetes.
3649 16894402 The increased occurrence of insulin resistance in Alzheimer's disease suggests that improving insulin effectiveness and insulysin activity may have therapeutic value in Alzheimer's disease patients and therefore is worth intensive investigation.
3650 16894402 Insulin resistance and dysregulation of the degradation of neurotoxic amyloid and insulin appear at the core of the links between Alzheimer's disease and diabetes.
3651 16894402 Functions and expression of insulysin, an enzyme involved in the degradation of neurotoxic amyloid peptides and insulin, are usually impaired or reduced in Alzheimer's disease and diabetes.
3652 16894402 The increased occurrence of insulin resistance in Alzheimer's disease suggests that improving insulin effectiveness and insulysin activity may have therapeutic value in Alzheimer's disease patients and therefore is worth intensive investigation.
3653 16909327 Venous blood samples were analyzed for lipid subfractions and novel cardiovascular risk factors such as lipoprotein (a), homocysteine, fibrinogen, high-sensitivity C-reactive protein (hs-CRP), and serum amyloid A (SAA) levels.
3654 16909327 No significant difference was found between the groups regarding family history of premature CAD, blood pressure, body mass index, lipoprotein (a), homocysteine, fibrinogen, SAA, apoprotein A-1 and B levels.
3655 16916504 Establishment of an in-house ELISA and the reference range for serum amyloid A (SAA): complementarity between SAA and C-reactive protein as markers of inflammation.
3656 16920151 Quaternary structure of a mature amyloid fibril from Alzheimer's Abeta(1-40) peptide.
3657 16920151 Using a range of biophysical techniques including electron microscopy we have analysed the quaternary structure of a mature amyloid fibril formed from the Abeta(1-40) peptide from Alzheimer's disease.
3658 16920151 Quaternary structure of a mature amyloid fibril from Alzheimer's Abeta(1-40) peptide.
3659 16920151 Using a range of biophysical techniques including electron microscopy we have analysed the quaternary structure of a mature amyloid fibril formed from the Abeta(1-40) peptide from Alzheimer's disease.
3660 16930758 Severe insulin resistance associated with subcutaneous amyloid deposition.
3661 16930758 It is suggested that the granulomas were the source of an insulin-degrading enzyme (IDE) which simultaneously degraded amyloidogenic precursors into localized amyloid deposits.
3662 16930758 Severe insulin resistance associated with subcutaneous amyloid deposition.
3663 16930758 It is suggested that the granulomas were the source of an insulin-degrading enzyme (IDE) which simultaneously degraded amyloidogenic precursors into localized amyloid deposits.
3664 16935948 Phenol red exhibits modest inhibition toward fibril formation of human Islet amyloid polypeptide (hIAPP) and its toxicity, which is associated with type II diabetes mellitus.
3665 16950544 Diabetes Mellitus type 2 (DM2) is a group of metabolic disorders characterized by defective insulin action or secretion or both with a 10.6% incidence in Mexican Mestizo population, DM2 is also classified within the localized misfolding diseases due to the amyloid pancreatic deposits found in 90% of the DM2 necropsies.
3666 16950544 The pancreatic amyloid main component is a protein known as human islet amyloid polypeptide (hIAPP) or amylin, the most common mutation is the S20G in Asian population with a polymorphic frequency in DM2 Asian patients.
3667 16950544 Diabetes Mellitus type 2 (DM2) is a group of metabolic disorders characterized by defective insulin action or secretion or both with a 10.6% incidence in Mexican Mestizo population, DM2 is also classified within the localized misfolding diseases due to the amyloid pancreatic deposits found in 90% of the DM2 necropsies.
3668 16950544 The pancreatic amyloid main component is a protein known as human islet amyloid polypeptide (hIAPP) or amylin, the most common mutation is the S20G in Asian population with a polymorphic frequency in DM2 Asian patients.
3669 16968152 Glucagon-like peptide-1 differentiation of primate embryonic stem cells into insulin-producing cells.
3670 16968152 The present study was performed to determine whether glucagon-like peptide-1 (GLP-1) stimulates differentiation of nestin-selected embryonic stem cells into insulin-producing cells.
3671 16968152 These cells differentiated into insulin-producing cells after addition of GLP-1.
3672 16968152 These nestin-positive cell-derived ICCs expressed numerous beta-cell lineage genes, including insulin; Glut-2; pancreatic duodenal homebox-1 protein (PDX-1); islet amyloid polypeptide (IAPP); neurogenin 3 (ngn3); and alpha, gamma, and delta cell gene markers.
3673 16968152 In addition, ICCs were characterized by coexpression of nestin/insulin and nestin/PDX-1.
3674 16968152 The levels of pancreas-related gene and protein expression and insulin secretion in the GLP-1 group were stronger than those in the normal controls.
3675 16968152 GLP-1 has been shown to be involved in stimulating the signaling pathways downstream of the transcription factor PDX-1, by increasing its protein and messenger RNA levels.
3676 16968152 We concluded that GLP-1 induced differentiation of nestin-positive progenitor embryonic stem cells into insulin-producing cells, which was achieved by upregulation of PDX-1 expression.
3677 16968945 Indeed, formation of HDL particles with attenuated antiatherogenic activity is mechanistically related to core lipid enrichment in triglycerides and cholesteryl ester depletion, altered apolipoprotein A-I (apoA-I) conformation, replacement of apoA-I by serum amyloid A, and covalent modification of HDL protein components by oxidation and glycation.
3678 16982850 There is a lack of agreement on the distribution of islet amyloid polypeptide (IAPP) in the pancreases of healthy and diabetic subjects.
3679 16982850 Therefore, a detailed morphometrical and immunohistochemical study was performed to obtain information on the distribution of cells expressing insulin, glucagon, somatostatin, pancreatic polypeptide (PP), and IAPP in the pancreases of non-diabetic (n=4) and diabetic individuals (n=6).
3680 17010615 Glycogen synthase kinase-3alpha (GSK-3alpha) was recently found to be an attractive target for the treatment of Alzheimer's disease due to its dual action in the formation of both amyloid plaques and neurofibrillary tangles.
3681 17027526 The central theme of this chapter is that human adipose tissue is a potent source of inflammatory interleukins plus other cytokines and that the majority of this release is due to the nonfat cells in the adipose tissue except for leptin and adiponectin that are primarily secreted by adipocytes.
3682 17027526 Human adipocytes secrete at least as much plasminogen activator inhibitor-1 (PAI-1), MCP-1, interleukin-8 (IL-8), and IL-6 in vitro as they do leptin but the nonfat cells of adipose tissue secrete even more of these proteins.
3683 17027526 The amount of serum amyloid A proteins 1 & 2 (SAA 1 & 2), haptoglobin, nerve growth factor (NGF), macrophage migration inhibitory factor (MIF), and PAI-1 secreted by the adipocytes derived from a gram of adipose tissue is 144%, 75%, 72%, 37%, and 23%, respectively, of that by the nonfat cells derived from the same amount of human adipose tissue.
3684 17027526 However, the release of IL-8, MCP-1, vascular endothelial growth factor (VEGF), TGF-beta1, IL-6, PGE(2), TNF-alpha, cathepsin S, hepatocyte growth factor (HGF), IL-1beta, IL-10, resistin, C-reactive protein (CRP), and interleukin-1 receptor antagonist (IL-1Ra) by adipocytes is less than 12% of that by the nonfat cells present in human adipose tissue.
3685 17027526 Obesity markedly elevates the total release of TNF-alpha, IL-6, and IL-8 by adipose tissue but only that of TNF-alpha is enhanced in adipocytes.
3686 17027526 Visceral adipose tissue also releases more VEGF, resistin, IL-6, PAI-1, TGF-beta1, IL-8, and IL-10 per gram of tissue than does abdominal subcutaneous adipose tissue.
3687 17027526 In conclusion, there is an increasing recognition that adipose tissue is an endocrine organ that secretes leptin and adiponectin along with a host of other paracrine and endocrine factors in addition to free fatty acids.
3688 17065343 In an effort to identify novel epitopes, we used matrix-assisted algorithms to predict peptides of glial fibrillary acidic protein (GFAP), prepro-islet amyloid polypeptide (ppIAPP), and islet-specific glucose-6-phosphatase catalytic subunit-related protein (IGRP) that likely bind to HLA-A*0201 with a strong affinity and contain a COOH-terminal proteasomal cleavage site.
3689 17065343 Seven peptides stabilized HLA-A*0201 expression in binding assays and were used to stimulate peripheral blood mononuclear cells and were evaluated for granzyme B secretion.
3690 17065343 Other peptides recognized by type 1 diabetic or antibody-positive subjects included GFAP(143-151), IGRP(152-160), and GFAP(214-222).
3691 17065343 These data implicate peptides of ppIAPP, GFAP, and IGRP as CTL epitopes for a heterogenous CD8(+) T-cell response in type 1 subjects and antibody-positive relatives.
3692 17065344 To identify additional epitopes, HLA class I peptide affinity algorithms were used to identify a panel of peptides derived from the beta-cell proteins islet amyloid polypeptide (IAPP), islet-specific glucose-6-phosphatase catalytic subunit-related protein (IGRP), insulin, insulinoma-associated antigen 2 (IA-2), and phogrin that were predicted to bind HLA-A*0201.
3693 17065344 We identified peptides IAPP9-17, IGRP215-223, IGRP152-160, islet IA-2(172-180), and IA-2(482-490) as novel HLA-A*0201-restricted T-cell epitopes in type 1 diabetic patients.
3694 17066144 Insulin resistance and dysregulation of the degradation of neurotoxic amyloid and insulin appear at the core of the links between Alzheimer's disease and diabetes.
3695 17066144 Functions and expression of insulysin, an enzyme involved in the degradation of neurotoxic amyloid peptides and insulin, are usually impaired or reduced in Alzheimer's disease and diabetes.
3696 17066144 The increased occurrence of insulin resistance in Alzheimer's disease suggests that improving insulin effectiveness and insulysin activity may have therapeutic value in Alzheimer's disease patients and therefore is worth intensive investigation.
3697 17066144 Insulin resistance and dysregulation of the degradation of neurotoxic amyloid and insulin appear at the core of the links between Alzheimer's disease and diabetes.
3698 17066144 Functions and expression of insulysin, an enzyme involved in the degradation of neurotoxic amyloid peptides and insulin, are usually impaired or reduced in Alzheimer's disease and diabetes.
3699 17066144 The increased occurrence of insulin resistance in Alzheimer's disease suggests that improving insulin effectiveness and insulysin activity may have therapeutic value in Alzheimer's disease patients and therefore is worth intensive investigation.
3700 17107885 An in vitro model of early islet amyloid polypeptide (IAPP) fibrillogenesis using human IAPP-transgenic mouse islets.
3701 17107885 However, islet amyloid polypeptide (IAPP)-derived islet amyloidosis (IA) has been linked to increased rates of beta-cell apoptosis and, therefore, our goal was to develop an in vitro model of IAPP fibrillogenesis using isolated pancreatic islets from mice transgenic for human IAPP (hIAPP Tg mice).
3702 17107885 An in vitro model of early islet amyloid polypeptide (IAPP) fibrillogenesis using human IAPP-transgenic mouse islets.
3703 17107885 However, islet amyloid polypeptide (IAPP)-derived islet amyloidosis (IA) has been linked to increased rates of beta-cell apoptosis and, therefore, our goal was to develop an in vitro model of IAPP fibrillogenesis using isolated pancreatic islets from mice transgenic for human IAPP (hIAPP Tg mice).
3704 17110595 A nuclear receptor corepressor-dependent pathway mediates suppression of cytokine-induced C-reactive protein gene expression by liver X receptor.
3705 17110595 We demonstrate herein that 2 synthetic LXR ligands, T0901317 and GW3965, inhibit interleukin-1beta/interleukin-6-induced CRP mRNA and protein expression in human hepatocytes.
3706 17110595 Knockdown of LXRalpha/beta by short interfering RNAs completely abolished the inhibitory effect of the LXR agonist T0901317 on cytokine-induced CRP gene transcription.
3707 17110595 Finally, treatment of C57Bl6/J mice with LXR ligands attenuated lipopolysaccharide-induced mouse CRP and serum amyloid P component gene expression in the liver, whereas no effect was observed in LXRalphabeta knockout mice.
3708 17110895 The increased risk of AD may also be mediated by the exacerbation of B-amyloid neurotoxicity by advanced glycosylation end products identified in the matrix of neurofibrillary tangles and amyloid plaques in AD brains, or associations with insulin functions.
3709 17123962 Direct detection of transient alpha-helical states in islet amyloid polypeptide.
3710 17123962 The protein islet amyloid polypeptide (IAPP) is a glucose metabolism associated hormone cosecreted with insulin by the beta-cells of the pancreas.
3711 17123962 Direct detection of transient alpha-helical states in islet amyloid polypeptide.
3712 17123962 The protein islet amyloid polypeptide (IAPP) is a glucose metabolism associated hormone cosecreted with insulin by the beta-cells of the pancreas.
3713 17139536 Evaluation of a commercially available human serum amyloid A (SAA) turbidimetric immunoassay for determination of feline SAA concentration.
3714 17139536 Serum amyloid A (SAA) is an acute-phase protein in cats likely to be useful for diagnosing and monitoring inflammatory diseases, especially if rapid, reliable and automated assays can be made available.
3715 17139536 Evaluation of a commercially available human serum amyloid A (SAA) turbidimetric immunoassay for determination of feline SAA concentration.
3716 17139536 Serum amyloid A (SAA) is an acute-phase protein in cats likely to be useful for diagnosing and monitoring inflammatory diseases, especially if rapid, reliable and automated assays can be made available.
3717 17141044 During differentiation, transcript levels of pancreas-specific transcription factors (i.e., Pdx1, Pax4) and of genes specific for early and mature beta cells, including insulin, islet amyloid pancreatic peptide, somatostatin, and glucagon, are upregulated.
3718 17142142 Serum levels of resistin, serum amyloid A, and soluble vascular cell adhesion molecule-1 were measured by enzyme-linked immunosorbent assay.
3719 17142142 Serum resistin concentrations did not correlate with body mass index; however, there was a significant positive correlation between resistin and soluble vascular cell adhesion molecule-1 in diabetic patients.
3720 17157312 Kinetics of different processes in human insulin amyloid formation.
3721 17157312 Human insulin has long been known to form amyloid fibrils under given conditions.
3722 17157312 Kinetics of different processes in human insulin amyloid formation.
3723 17157312 Human insulin has long been known to form amyloid fibrils under given conditions.
3724 17192466 Human islet amyloid polypeptide oligomers disrupt cell coupling, induce apoptosis, and impair insulin secretion in isolated human islets.
3725 17192466 Both are characterized by the presence of islet amyloid derived from islet amyloid polypeptide (IAPP).
3726 17192466 Human islet amyloid polypeptide oligomers disrupt cell coupling, induce apoptosis, and impair insulin secretion in isolated human islets.
3727 17192466 Both are characterized by the presence of islet amyloid derived from islet amyloid polypeptide (IAPP).
3728 17203498 IAPP mimic blocks Abeta cytotoxic self-assembly: cross-suppression of amyloid toxicity of Abeta and IAPP suggests a molecular link between Alzheimer's disease and type II diabetes.
3729 17222388 To examine the roles of glucose and time on amyloid formation, we developed a rapid in vitro model using isolated islets from human islet amyloid polypeptide (hIAPP) transgenic mice.
3730 17222388 At various time-points throughout the culture period, islets were harvested for determination of amyloid and beta-cell areas, and for measures of cell viability, insulin content, and secretion.
3731 17222388 To examine the roles of glucose and time on amyloid formation, we developed a rapid in vitro model using isolated islets from human islet amyloid polypeptide (hIAPP) transgenic mice.
3732 17222388 At various time-points throughout the culture period, islets were harvested for determination of amyloid and beta-cell areas, and for measures of cell viability, insulin content, and secretion.
3733 17237312 Red meat, relative to control, resulted in: higher protein [5.3 (3.7, 6.9) % of energy], lower carbohydrate [-5.3 (-7.9, -2.7)% of energy], and higher iron [3.2 (1.1, 5.4) mg/d] intakes; lower urinary F2-isoprostane excretion [-137 (-264, -9) pmol/mmol creatinine], lower leukocyte [-0.51 (-0.99, -0.02)x10(9)/L] counts, and a trend for lower serum C-reactive protein concentrations [-1.6 (-3.3, 0.0) mg/L, P=0.06]; and no differences in concentrations of plasma F2-isoprostanes [-12 (-122, 100) pmol/L], serum gamma-glytamyltransferase [-0.8 (-3.2, 1.5) U/L], serum amyloid A protein [-1.4 (-3.4, 0.5) mg/L], and plasma fibrinogen concentrations [-0.08 (-0.40. 0.24) g/L].
3734 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3735 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3736 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3737 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3738 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3739 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3740 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3741 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3742 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3743 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3744 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3745 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3746 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3747 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3748 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3749 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3750 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3751 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3752 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3753 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3754 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3755 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3756 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3757 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3758 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3759 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3760 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3761 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3762 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3763 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3764 17259373 Identification of the amyloid-degrading enzyme neprilysin in mouse islets and potential role in islet amyloidogenesis.
3765 17259373 It is poorly understood how the building block of amyloid, islet amyloid polypeptide (IAPP), misfolds and accumulates within the islet to contribute to cellular dysfunction.
3766 17259373 We sought to determine whether neprilysin, an amyloid-degrading enzyme, is present in islets and plays a role in the accumulation of amyloid fibrils.
3767 17259373 Islet amyloid was detected in 43% of the 6-month-old hIAPP transgenic male mice only, suggesting the sustained elevation of islet neprilysin in these mice was a compensatory mechanism aimed at preventing amyloid accumulation.
3768 17259373 In keeping with amyloid formation, the proportion of insulin-positive area to islet area was significantly reduced in 6-month-old hIAPP transgenic male mice, which also displayed mild fasting hyperglycemia compared with age-matched transgenic female and nontransgenic mice.
3769 17259373 Together, these findings demonstrate that neprilysin is a factor associated with islet amyloid accumulation and subsequent deterioration of beta-cell function in hIAPP transgenic male mice.
3770 17267050 Serum amyloid A (SAA), a HDL apolipoprotein is a risk marker for cardiovascular disease.
3771 17267050 TNF-alpha, IL-1beta, IL-8 and IL-1ra levels were measured by ELISA in the culture supernatants and in serum of subjects.
3772 17267050 We make the novel observation that neutrophils and monocytes of diabetics are more responsive to SAA for the induction of the proinflammatory cytokine IL-1beta and the proangiogenic and chemotactic protein IL-8.
3773 17267050 Incremental TNF-alpha production was also found to occur when monocytes were stimulated with SAA.
3774 17267401 Insulin antagonizes interleukin-6 signaling and is anti-inflammatory in 3T3-L1 adipocytes.
3775 17267401 Adipose tissue secretes different adipokines, including interleukin-6 (IL-6), that have been implicated in the insulin resistance and inflammatory state characterizing obesity.
3776 17267401 We examined the putative cross-talk between insulin and IL-6 in adipose cells and found that insulin exerts an inhibitory effect on the IL-6 signaling pathway by altering the post-translational modifications of the signal transducer and activator of transcription 3 (STAT3).
3777 17267401 Insulin reduces the tyrosine phosphorylation and increases the serine phosphorylation of STAT3, thereby reducing its nuclear localization and transcriptional activity.
3778 17267401 Signaling through the MEK/MAPK pathway plays an important role as treatment with the MEK inhibitor PD98059 reduces the effects of insulin on IL-6 signaling.
3779 17267401 We also show that the protein tyrosine phosphatase SHP2 is activated upon insulin signaling and is required for the dephosphorylation of STAT3 and that insulin exerts a synergistic effect with IL-6 on suppressor of cytokine signaling 3 expression.
3780 17267401 As a consequence, the IL-6-induced expression of the inflammatory markers serum amyloid A 3 and haptoglobin are significantly decreased in cells incubated with both IL-6 and insulin.
3781 17267401 Thus, insulin exerts an important anti-inflammatory effect in adipose cells by impairing the IL-6 signal at several levels.
3782 17311418 Aromatic interactions are not required for amyloid fibril formation by islet amyloid polypeptide but do influence the rate of fibril formation and fibril morphology.
3783 17311418 Here we examine whether aromatic residues are necessary for amyloid formation by islet amyloid polypeptide (IAPP).
3784 17311418 CD, thioflavin binding assays, AFM, and TEM measurements all show that the triple leucine mutant readily forms amyloid fibrils.
3785 17311418 Aromatic interactions are not required for amyloid fibril formation by islet amyloid polypeptide but do influence the rate of fibril formation and fibril morphology.
3786 17311418 Here we examine whether aromatic residues are necessary for amyloid formation by islet amyloid polypeptide (IAPP).
3787 17311418 CD, thioflavin binding assays, AFM, and TEM measurements all show that the triple leucine mutant readily forms amyloid fibrils.
3788 17311418 Aromatic interactions are not required for amyloid fibril formation by islet amyloid polypeptide but do influence the rate of fibril formation and fibril morphology.
3789 17311418 Here we examine whether aromatic residues are necessary for amyloid formation by islet amyloid polypeptide (IAPP).
3790 17311418 CD, thioflavin binding assays, AFM, and TEM measurements all show that the triple leucine mutant readily forms amyloid fibrils.
3791 17340097 Effects of confinement on insulin amyloid fibrils formation.
3792 17340097 Insulin, a 51-residue protein universally used in diabetes treatment, is known to produce amyloid fibrils at high temperature and acidic conditions.
3793 17340097 Effects of confinement on insulin amyloid fibrils formation.
3794 17340097 Insulin, a 51-residue protein universally used in diabetes treatment, is known to produce amyloid fibrils at high temperature and acidic conditions.
3795 17349968 Membrane interaction of islet amyloid polypeptide.
3796 17353295 The major factors for progressive loss of beta-cell function and mass are glucotoxicity, lipotoxicity, proinflammatory cytokines, leptin, and islet cell amyloid.
3797 17353295 The TZDs improve insulin secretory capacity, decrease beta-cell apoptosis, and reduce islet cell amyloid with maintenance of neogenesis.
3798 17353295 From the two major incretins, glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), only the first one or its mimetics or enhancers can be used for treatment because the diabetic beta-cell is resistant to GIP action.
3799 17353295 The acute effect of GLP-1 and GLP-1 receptor agonists on beta-cells is stimulation of glucose-dependent insulin release, followed by enhancement of insulin biosynthesis and stimulation of insulin gene transcription.
3800 17353295 The inhibition of the activity of the DPP-IV enzyme enhances endogenous GLP-1 action in vivo, mediated not only by GLP-1 but also by other mediators.
3801 17353295 The major factors for progressive loss of beta-cell function and mass are glucotoxicity, lipotoxicity, proinflammatory cytokines, leptin, and islet cell amyloid.
3802 17353295 The TZDs improve insulin secretory capacity, decrease beta-cell apoptosis, and reduce islet cell amyloid with maintenance of neogenesis.
3803 17353295 From the two major incretins, glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), only the first one or its mimetics or enhancers can be used for treatment because the diabetic beta-cell is resistant to GIP action.
3804 17353295 The acute effect of GLP-1 and GLP-1 receptor agonists on beta-cells is stimulation of glucose-dependent insulin release, followed by enhancement of insulin biosynthesis and stimulation of insulin gene transcription.
3805 17353295 The inhibition of the activity of the DPP-IV enzyme enhances endogenous GLP-1 action in vivo, mediated not only by GLP-1 but also by other mediators.
3806 17353506 Toxic human islet amyloid polypeptide (h-IAPP) oligomers are intracellular, and vaccination to induce anti-toxic oligomer antibodies does not prevent h-IAPP-induced beta-cell apoptosis in h-IAPP transgenic mice.
3807 17459337 Complement activation by islet amyloid polypeptide (IAPP) and alpha-synuclein 112.
3808 17459337 We compared their complement activating ability in vitro with those of islet amyloid polypeptide (IAPP), which aggregates in the pancreas of T2DM, and alpha-synuclein (alpha-Syn), which aggregates in PD.
3809 17459337 Complement activation by islet amyloid polypeptide (IAPP) and alpha-synuclein 112.
3810 17459337 We compared their complement activating ability in vitro with those of islet amyloid polypeptide (IAPP), which aggregates in the pancreas of T2DM, and alpha-synuclein (alpha-Syn), which aggregates in PD.
3811 17475933 High expression rates of human islet amyloid polypeptide induce endoplasmic reticulum stress mediated beta-cell apoptosis, a characteristic of humans with type 2 but not type 1 diabetes.
3812 17482289 DPP-4 inhibition improves glucose tolerance and increases insulin and GLP-1 responses to gastric glucose in association with normalized islet topography in mice with beta-cell-specific overexpression of human islet amyloid polypeptide.
3813 17482289 In this study, we explored the effects of DPP-4 inhibition in mice with beta-cell overexpression of human islet amyloid polypeptide (IAPP).
3814 17482289 After eight weeks, a gastric tolerance test showed that vildagliptin improved glucose tolerance and markedly (approximately ten-fold) augmented the insulin response in association with augmented (approximately five-fold) levels of intact glucagon-like peptide-1 (GLP-1).
3815 17482289 DPP-4 inhibition improves glucose tolerance and increases insulin and GLP-1 responses to gastric glucose in association with normalized islet topography in mice with beta-cell-specific overexpression of human islet amyloid polypeptide.
3816 17482289 In this study, we explored the effects of DPP-4 inhibition in mice with beta-cell overexpression of human islet amyloid polypeptide (IAPP).
3817 17482289 After eight weeks, a gastric tolerance test showed that vildagliptin improved glucose tolerance and markedly (approximately ten-fold) augmented the insulin response in association with augmented (approximately five-fold) levels of intact glucagon-like peptide-1 (GLP-1).
3818 17487340 There is evidence to suggest that impaired activities of neurotrophic factors such as insulin, IGF-1 and NGF, which occur in both diabetes and AD, may provide a mechanistic link between the two disorders.
3819 17487340 Impaired insulin signaling in particular appears to be involved in hyperphosphorylation of the tau protein, which constitutes neurofibrillary tangles in AD.
3820 17487340 The linkage between abnormal amyloid metabolism and phosphor-tau is likely to be provided by the activation of caspases both by increased amyloid-beta and by impaired insulin signaling.
3821 17495860 Amylin (islet amyloid peptide) plays a critical role in islet amyloidosis and in the development of beta-cell dysfunction in patients with diabetes; however, the involvement of amylin in renal amyloidosis has not been studied.
3822 17502604 Automated 2D IR spectroscopy using a mid-IR pulse shaper and application of this technology to the human islet amyloid polypeptide.
3823 17502604 With these methods in hand, we apply 2D IR spectroscopy to study the structural diversity in amyloid fibers of aggregated human islet amyloid polypeptide (hIAPP), which is involved with type 2 diabetes.
3824 17502604 Automated 2D IR spectroscopy using a mid-IR pulse shaper and application of this technology to the human islet amyloid polypeptide.
3825 17502604 With these methods in hand, we apply 2D IR spectroscopy to study the structural diversity in amyloid fibers of aggregated human islet amyloid polypeptide (hIAPP), which is involved with type 2 diabetes.
3826 17516840 This review focuses primarily on islet structural and functional changes related to an activated islet renin- angiotensin system (RAS), islet oxidative-redox imbalance, the concurrence of islet fibrosis (pericapillary, intra- and peri-islet), and islet amyloid deposition (pericapillary, intra- and peri-islet).
3827 17526769 In 2004, the human islet amyloid polypeptide (HIP) rat model was created by transfecting the Sprague-Dawley rat with the human islet amyloid polypeptide (hIAPP)-amylin gene.
3828 17526769 The 4-month HIP model (FBS 123 mg/dl) demonstrated an abundance of beta-cells and insulin secretory granules with significant pericapillary and inter-beta-cell islet amyloid deposition.
3829 17526769 In 2004, the human islet amyloid polypeptide (HIP) rat model was created by transfecting the Sprague-Dawley rat with the human islet amyloid polypeptide (hIAPP)-amylin gene.
3830 17526769 The 4-month HIP model (FBS 123 mg/dl) demonstrated an abundance of beta-cells and insulin secretory granules with significant pericapillary and inter-beta-cell islet amyloid deposition.
3831 17554795 Familial amyloid polyneuropathy (FAP) is the most common form of inherited amyloidotic polyneuropathy, with clinical and electrophysiologic findings similar to neuropathies with differing etiologies (e.g., diabetes mellitus).
3832 17554795 Transthyretin amyloidosis is treated by liver transplantation, which eliminates the mutated transthyretin from the blood, but for some patients continued amyloid deposition can occur from wild-type (normal) transthyretin.
3833 17554795 Familial amyloid polyneuropathy (FAP) is the most common form of inherited amyloidotic polyneuropathy, with clinical and electrophysiologic findings similar to neuropathies with differing etiologies (e.g., diabetes mellitus).
3834 17554795 Transthyretin amyloidosis is treated by liver transplantation, which eliminates the mutated transthyretin from the blood, but for some patients continued amyloid deposition can occur from wild-type (normal) transthyretin.
3835 17563062 However, other adipocyte-derived factors, e.g., hyaluronan and serum amyloid A (SAA), can facilitate monocyte adhesion and chemotaxis, respectively.
3836 17563062 Nuclear factor-kappaB was upregulated and peroxisome proliferator-activated receptor (PPAR)gamma was downregulated in hypertrophic 3T3-L1 cells, with increased expression of SAA3 and increased hyaluronan production.
3837 17563062 Hypertrophic adipocytes demonstrated overexpression of SAA3 and hyaluronan synthase 2 in vitro and in vivo in diet-induced and genetic obesity.
3838 17563062 This complex, purified by binding to a biotinylated hyaluronan binding protein affinity column, also showed monocyte chemotactic activity, which was dependent on the presence of SAA3 and hyaluronan but independent of MCP-1.
3839 17563062 We hypothesize that adipocyte hypertrophy leads to increased production of SAA and hyaluronan, which act in concert to recruit and retain monocytes, thereby leading to local inflammation in adipose tissue.
3840 17563070 Impairment of the ubiquitin-proteasome pathway is a downstream endoplasmic reticulum stress response induced by extracellular human islet amyloid polypeptide and contributes to pancreatic beta-cell apoptosis.
3841 17565412 Several mechanisms have been proposed to be responsible for insulin resistance, including increased non-esterified fatty acids, inflammatory cytokines, adipokines, and mitochondrial dysfunction, as well as glucotoxicity, lipotoxicity, and amyloid formation for beta-cell dysfunction.
3842 17594389 The mechanisms responsible for loss of beta-cell function are likely to be multifactorial, but may involve toxicity because of elevated glucose and/or lipid levels, increased secretory demand because of insulin resistance, amyloid deposition and altered levels of cytokines.
3843 17660321 Mechanism of islet amyloid polypeptide fibrillation at lipid interfaces studied by infrared reflection absorption spectroscopy.
3844 17660321 Islet amyloid polypeptide (IAPP) is a pancreatic hormone and one of a number of proteins that are involved in the formation of amyloid deposits in the islets of Langerhans of type II diabetes mellitus patients.
3845 17660321 Mechanism of islet amyloid polypeptide fibrillation at lipid interfaces studied by infrared reflection absorption spectroscopy.
3846 17660321 Islet amyloid polypeptide (IAPP) is a pancreatic hormone and one of a number of proteins that are involved in the formation of amyloid deposits in the islets of Langerhans of type II diabetes mellitus patients.
3847 17675900 Mechanisms implicated in beta-cell dysfunction include genetic abnormalities, prenatal and early postnatal insults, and environmental events along with obesity, dyslipidemia-lipotoxicity, glucotoxicity, oxidative stress, chronic low-grade inflammation, amyloid deposition, and activation of the local renin-angiotensin system.
3848 17679816 That adipose tissue releases a wide range of adipokines, growth factors, enzymes, and enzyme substrates linked to vascular injury provides a plausible explanation for the role of fat in vascular disease: tumor necrosis factor-alpha, leptin, resistin, interleukin-1, -6, -8, and -18, serum amyloid A, monocyte chemoattractant protein I, macrophage inhibitory factor, aortic carboxypeptidase, hepa-rin-binding epidermal growth factor-like growth factor, vascular endothelial growth factor, transforming growth factor beta, angiotensinogen, cathepsin S, estradiol, cortisol, mineralocorticoid releasing factor, and calcitonin peptides are probable fat-derived prothrombotic, proinflammatory, and proatherosclerotic agents acting in a paracrine and/or endocrine manner.
3849 17679816 Other adipocyte products such as adiponectin, transforming growth factor beta, and interleukin-10 exert some antiatherogenic effects.
3850 17804609 Deposition of islet amyloid polypeptide (IAPP) as amyloid in the pancreatic islet occurs in approximately 90% of individuals with Type 2 diabetes and is associated with decreased islet beta-cell mass and function.
3851 17882804 Fat issue secretes leptin, tumor necrosis factor alpha, resistin, adiponectin, interleukin-6, free fatty acids, visfatin, omentin, perilipin, and other substances that influence the condition of insulinoresistance, one of the main factors responsible for DM2.
3852 17882804 The article also cover the participation of other mechanisms - insulin secretion defect, oxidation stress, low secretion of glucagon-like peptide 1, apoptosis, an increased quantity of amyloid and the fl-cell pull in the pancreatic island--in DM2 pathogenesis.
3853 17882804 The authors present data on the secretion of leptin, resistin, adiponectin, and tumor necrosis factor a, as well as the condition of the functional activity of beta-cells and the degree of insulinoresistance in 30 DM2 patients receiving dietotherapy.
3854 17891154 The retromer complex is required for the sorting of acid hydrolases to lysosomes, transcytosis of the polymeric immunoglobulin receptor, Wnt gradient formation, iron transporter recycling and processing of the amyloid precursor protein.
3855 17891154 Human retromer consists of two smaller complexes: the cargo recognition VPS26-VPS29-VPS35 heterotrimer and a membrane-targeting heterodimer or homodimer of SNX1 and/or SNX2 (ref. 13).
3856 17891154 Here we report the crystal structure of a VPS29-VPS35 subcomplex showing how the metallophosphoesterase-fold subunit VPS29 (refs 14, 15) acts as a scaffold for the carboxy-terminal half of VPS35.
3857 17891154 VPS35 forms a horseshoe-shaped, right-handed, alpha-helical solenoid, the concave face of which completely covers the metal-binding site of VPS29, whereas the convex face exposes a series of hydrophobic interhelical grooves.
3858 17891154 A hybrid structural model derived from crystal structures, electron microscopy, interaction studies and bioinformatics shows that the alpha-solenoid fold extends the full length of VPS35, and that VPS26 is bound at the opposite end from VPS29.
3859 17924651 Amyloid formation by pro-islet amyloid polypeptide processing intermediates: examination of the role of protein heparan sulfate interactions and implications for islet amyloid formation in type 2 diabetes.
3860 17924651 In type 2 diabetes, islet amyloid polypeptide (IAPP, also known as amylin) forms cytotoxic amyloid deposits in the pancreas, and these are believed to contribute to the pathology of the disease.
3861 17924651 Amyloid formation by pro-islet amyloid polypeptide processing intermediates: examination of the role of protein heparan sulfate interactions and implications for islet amyloid formation in type 2 diabetes.
3862 17924651 In type 2 diabetes, islet amyloid polypeptide (IAPP, also known as amylin) forms cytotoxic amyloid deposits in the pancreas, and these are believed to contribute to the pathology of the disease.
3863 17979302 The 37-residue amylin peptide, also known as islet amyloid polypeptide, forms fibrils that are the main peptide or protein component of amyloid that develops in the pancreas of type 2 diabetes patients.
3864 17979302 Amylin also readily forms amyloid fibrils in vitro that are highly polymorphic under typical experimental conditions.
3865 17979302 The molecular structure of amylin protofilaments in striated ribbons closely resembles the protofilament in amyloid fibrils with a similar morphology formed by the 40-residue beta-amyloid peptide that is associated with Alzheimer's disease.
3866 17979302 The 37-residue amylin peptide, also known as islet amyloid polypeptide, forms fibrils that are the main peptide or protein component of amyloid that develops in the pancreas of type 2 diabetes patients.
3867 17979302 Amylin also readily forms amyloid fibrils in vitro that are highly polymorphic under typical experimental conditions.
3868 17979302 The molecular structure of amylin protofilaments in striated ribbons closely resembles the protofilament in amyloid fibrils with a similar morphology formed by the 40-residue beta-amyloid peptide that is associated with Alzheimer's disease.
3869 17979302 The 37-residue amylin peptide, also known as islet amyloid polypeptide, forms fibrils that are the main peptide or protein component of amyloid that develops in the pancreas of type 2 diabetes patients.
3870 17979302 Amylin also readily forms amyloid fibrils in vitro that are highly polymorphic under typical experimental conditions.
3871 17979302 The molecular structure of amylin protofilaments in striated ribbons closely resembles the protofilament in amyloid fibrils with a similar morphology formed by the 40-residue beta-amyloid peptide that is associated with Alzheimer's disease.
3872 18063919 LX receptors are also involved in the regulation of renin secretion, inhibit the formation of amyloid ss in the central nervous system, regulate gonadal function and steroidogenesis both in gonads and in adrenals, influence the proliferation and differentiation of keratinocytes, and inhibit the proliferation of tumor cells.
3873 18155730 Islet amyloid polypeptide forms rigid lipid-protein amyloid fibrils on supported phospholipid bilayers.
3874 18155730 Islet amyloid polypeptide (IAPP) forms fibrillar amyloid deposits in the pancreatic islets of Langerhans of patients with type 2 diabetes mellitus, and its misfolding and aggregation are thought to contribute to beta-cell death.
3875 18155730 Islet amyloid polypeptide forms rigid lipid-protein amyloid fibrils on supported phospholipid bilayers.
3876 18155730 Islet amyloid polypeptide (IAPP) forms fibrillar amyloid deposits in the pancreatic islets of Langerhans of patients with type 2 diabetes mellitus, and its misfolding and aggregation are thought to contribute to beta-cell death.
3877 18160637 Reduced mRNA and protein for an apolipoprotein E (ApoE) receptor family member, SorLA (LR11) has been found in LOAD but not early-onset AD, suggesting that LR11 loss is not secondary to pathology.
3878 18160637 LR11 is a neuronal sorting protein that reduces amyloid precursor protein (APP) trafficking to secretases that generate beta-amyloid (Abeta).
3879 18160637 Because lipoprotein receptors are typically lipid-regulated, we postulated that LR11 is regulated by docosahexaenoic acid (DHA), an essential omega-3 fatty acid related to reduced AD risk and reduced Abeta accumulation.
3880 18160637 In vivo elevation of LR11 was also observed with dietary fish oil in young rats with insulin resistance, a model for type II diabetes, another AD risk factor.
3881 18160637 Because reduced LR11 is known to increase Abeta production and may be a significant genetic cause of LOAD, our results indicate that DHA increases in SorLA/LR11 levels may play an important role in preventing LOAD.
3882 18184370 Glycogen synthase kinase-3beta, or a link between amyloid and tau pathology?
3883 18193704 Work on the pentraxin proteins, C-reactive protein (CRP) and serum amyloid P component (SAP), and on amyloidosis, has benefited from abundant serendipity, leading to routine clinical use of CRP measurements, the invention of SAP scintigraphy for amyloidosis, the establishment of the NHS National Amyloidosis Centre providing superior patient care, and latterly the invention of a novel pharmacological mechanism for therapeutic depletion of pathogenic proteins.
3884 18197729 Other genes involved in the disease pathways related to AD pathology in addition to cholesterol metabolism, neuroinflammation, amyloid and tau cascade, neuronal signalling, and plasticity are under investigation.
3885 18243137 The misfolding of islet amyloid polypeptide (IAPP, amylin) results in the formation of islet amyloid, which is one of the most common pathological features of type 2 diabetes (T2D).
3886 18243137 Amylin, a 37-amino-acid peptide co-secreted with insulin and apolipoprotein E (ApoE) from the beta-cells of pancreatic islets, is thought to be responsible for the reduced mass of insulin-producing beta-cells.
3887 18267105 Surface-enhanced nucleation of insulin amyloid fibrillation.
3888 18267105 Here, we show that heterogeneous surfaces accelerate the human insulin nucleation process that is the rate-determining step during amyloid fibril formation.
3889 18267105 Surface-enhanced nucleation of insulin amyloid fibrillation.
3890 18267105 Here, we show that heterogeneous surfaces accelerate the human insulin nucleation process that is the rate-determining step during amyloid fibril formation.
3891 18305836 In this article, we support the case that the neurotoxic agent in Alzheimer's disease is a soluble aggregated form of the amyloid beta peptide (Abeta), probably complexed with divalent copper.
3892 18314421 Type 2 diabetes (T2DM) is characterized by insulin resistance, defective insulin secretion, loss of beta-cell mass with increased beta-cell apoptosis and islet amyloid.
3893 18314421 The islet amyloid is derived from islet amyloid polypeptide (IAPP, amylin), a protein coexpressed and cosecreted with insulin by pancreatic beta-cells.
3894 18314421 Type 2 diabetes (T2DM) is characterized by insulin resistance, defective insulin secretion, loss of beta-cell mass with increased beta-cell apoptosis and islet amyloid.
3895 18314421 The islet amyloid is derived from islet amyloid polypeptide (IAPP, amylin), a protein coexpressed and cosecreted with insulin by pancreatic beta-cells.
3896 18320241 Cleavage agents for soluble oligomers of human islet amyloid polypeptide.
3897 18320241 Soluble oligomers of human islet amyloid polypeptide (h-IAPP) are implicated in the initiation of beta-cell apoptosis leading to type 2 diabetes mellitus (T2DM).
3898 18320241 Cleavage agents for soluble oligomers of human islet amyloid polypeptide.
3899 18320241 Soluble oligomers of human islet amyloid polypeptide (h-IAPP) are implicated in the initiation of beta-cell apoptosis leading to type 2 diabetes mellitus (T2DM).
3900 18370645 More recent data on experimental atherosclerosis in the mouse shows that (1) insulin administration reduces the number and the size of atherosclerotic lesions in apo E null mice and (2) in IRS-2 null mice, the interruption in insulin signal transduction results in enhanced atherogenicity.
3901 18370645 Our own most recent data show that a low dose infusion of insulin in patients with acute myocardial infarction induces a reduction in inflammation (C-reactive protein and serum amyloid A) and oxidative stress, and promotes fibrinolysis.
3902 18370776 In insulin resistant states and diabetes, heat shock factor 1(HSF-1) is low in insulin sensitive tissues, resulting in low Hsp 60, 70, and 90 levels.
3903 18370776 We propose that low Hsps levels are the result of decreased insulin action leading to less phosphorylation of PI3K, PKB, and glycogen synthase kinase-3 (GSK-3).
3904 18370776 Low Hsps make organs vulnerable to injury, impair the stress response, accelerate systemic inflammation, raise islet amyloid polypeptide, and increase insulin resistance.
3905 18370776 Support for the proposed "vicious" cycle is based on the observation that GSK-3 inhibition and Hsp stimulation result in increased insulin sensitivity, reduced accumulation of degenerative proteins with in the cell, improved wound healing, decreased organ damage and improved recovery from vascular ischemia.
3906 18372080 Since diabetes is a risk factor for Alzheimer's disease (AD), we asked if there is a functional interaction between high glucose and elevated beta amyloid peptide (Abeta) in cultured brain microvascular endothelial cells and presymptomatic AD transgenic mice.
3907 18406800 Homeodomain protein IDX-1: a master regulator of pancreas development and insulin gene expression.
3908 18406800 In the adult endocrine pancreas, IDX-1 is primarily expressed in beta cells, where it is a key factor in the upregulation of insulin gene transcription and appears to have a role in the regulation of the somatostatin, glucokinase, glucose transporter-2, and islet amyloid polypeptide genes.
3909 18406800 The observed functions of IDX-1 and its downregulation in parallel with insulin in glucose-toxicity models implicate IDX-1 as a potential factor contributing to the pathogenesis of diabetes mellitus.
3910 18407659 Interaction with amyloid beta peptide compromises the lipid binding function of apolipoprotein E.
3911 18407659 It is also associated with protein misfolding or amyloid proteopathy of the beta amyloid peptide (Abeta) in Alzheimer's disease (AD) and cerebral amyloid angiopathy.
3912 18407659 The objective of this study is to examine if the neurotoxic oligomeric Abeta interacts with apoE CT and if this association affects the lipoprotein binding function of recombinant human apoE CT.
3913 18407659 Site-specific fluorescence labeling of single cysteine-containing apoE CT variants with donor probes were employed to identify the binding of Abeta bearing an acceptor probe by intermolecular fluorescence resonance energy-transfer analysis.
3914 18407659 In addition, incubation of apoE CT with Abeta severely impaired the lipid binding ability and the overall amount of lipid-associated apoE CT.
3915 18407659 However, when apoE CT is present in a lipid-bound state, Abeta appears to be localized within the lipid milieu of the lipoprotein particle and not associated with any specific segments of the protein.
3916 18407659 When our data are taken together, they suggest that Abeta association compromises the fundamental lipoprotein binding function of apoE, which may have implications not only in terms of amyloid buildup but also in terms of the accumulation of cholesterol at extracellular sites.
3917 18407659 Interaction with amyloid beta peptide compromises the lipid binding function of apolipoprotein E.
3918 18407659 It is also associated with protein misfolding or amyloid proteopathy of the beta amyloid peptide (Abeta) in Alzheimer's disease (AD) and cerebral amyloid angiopathy.
3919 18407659 The objective of this study is to examine if the neurotoxic oligomeric Abeta interacts with apoE CT and if this association affects the lipoprotein binding function of recombinant human apoE CT.
3920 18407659 Site-specific fluorescence labeling of single cysteine-containing apoE CT variants with donor probes were employed to identify the binding of Abeta bearing an acceptor probe by intermolecular fluorescence resonance energy-transfer analysis.
3921 18407659 In addition, incubation of apoE CT with Abeta severely impaired the lipid binding ability and the overall amount of lipid-associated apoE CT.
3922 18407659 However, when apoE CT is present in a lipid-bound state, Abeta appears to be localized within the lipid milieu of the lipoprotein particle and not associated with any specific segments of the protein.
3923 18407659 When our data are taken together, they suggest that Abeta association compromises the fundamental lipoprotein binding function of apoE, which may have implications not only in terms of amyloid buildup but also in terms of the accumulation of cholesterol at extracellular sites.
3924 18407659 Interaction with amyloid beta peptide compromises the lipid binding function of apolipoprotein E.
3925 18407659 It is also associated with protein misfolding or amyloid proteopathy of the beta amyloid peptide (Abeta) in Alzheimer's disease (AD) and cerebral amyloid angiopathy.
3926 18407659 The objective of this study is to examine if the neurotoxic oligomeric Abeta interacts with apoE CT and if this association affects the lipoprotein binding function of recombinant human apoE CT.
3927 18407659 Site-specific fluorescence labeling of single cysteine-containing apoE CT variants with donor probes were employed to identify the binding of Abeta bearing an acceptor probe by intermolecular fluorescence resonance energy-transfer analysis.
3928 18407659 In addition, incubation of apoE CT with Abeta severely impaired the lipid binding ability and the overall amount of lipid-associated apoE CT.
3929 18407659 However, when apoE CT is present in a lipid-bound state, Abeta appears to be localized within the lipid milieu of the lipoprotein particle and not associated with any specific segments of the protein.
3930 18407659 When our data are taken together, they suggest that Abeta association compromises the fundamental lipoprotein binding function of apoE, which may have implications not only in terms of amyloid buildup but also in terms of the accumulation of cholesterol at extracellular sites.
3931 18408164 Membrane damage by human islet amyloid polypeptide through fibril growth at the membrane.
3932 18408164 Fibrillar protein deposits (amyloid) in the pancreatic islets of Langerhans are thought to be involved in death of the insulin-producing islet beta cells in type 2 diabetes mellitus.
3933 18408164 It has been suggested that the mechanism of this beta cell death involves membrane disruption by human islet amyloid polypeptide (hIAPP), the major constituent of islet amyloid.
3934 18408164 Membrane damage by human islet amyloid polypeptide through fibril growth at the membrane.
3935 18408164 Fibrillar protein deposits (amyloid) in the pancreatic islets of Langerhans are thought to be involved in death of the insulin-producing islet beta cells in type 2 diabetes mellitus.
3936 18408164 It has been suggested that the mechanism of this beta cell death involves membrane disruption by human islet amyloid polypeptide (hIAPP), the major constituent of islet amyloid.
3937 18408164 Membrane damage by human islet amyloid polypeptide through fibril growth at the membrane.
3938 18408164 Fibrillar protein deposits (amyloid) in the pancreatic islets of Langerhans are thought to be involved in death of the insulin-producing islet beta cells in type 2 diabetes mellitus.
3939 18408164 It has been suggested that the mechanism of this beta cell death involves membrane disruption by human islet amyloid polypeptide (hIAPP), the major constituent of islet amyloid.
3940 18424002 The aims of the study were to investigate whether the level of amyloid beta-peptide (Abeta) (1-40) was increased in brain of diabetic rats and whether the increase was associated with dysfunction of P-glycoprotein at the blood-brain barrier.
3941 18442979 Structure of alpha-helical membrane-bound human islet amyloid polypeptide and its implications for membrane-mediated misfolding.
3942 18442979 Human islet amyloid polypeptide (hIAPP) misfolding is thought to play an important role in the pathogenesis of type II diabetes mellitus.
3943 18442979 Structure of alpha-helical membrane-bound human islet amyloid polypeptide and its implications for membrane-mediated misfolding.
3944 18442979 Human islet amyloid polypeptide (hIAPP) misfolding is thought to play an important role in the pathogenesis of type II diabetes mellitus.
3945 18451519 Amylin (IAPP; islet amyloid polypeptide), an inhibitor for glybenclamide, did not inhibit the activity of the isolated compounds, suggesting that they act through a mechanism(s) different from glybenclamide.
3946 18457421 We have previously demonstrated the potent inhibitory potential of phenolsulfonphthalein, a nontoxic compound that was approved for diagnostic use in human subjects, on aggregation of islet amyloid polypeptide (IAPP) that is associated with type 2 diabetes.
3947 18457421 Differential activity was also observed in the inhibition of insulin amyloid formation by these two compounds, and density-gradient experiments clearly demonstrated the different inhibitory effect of the two compounds on the formation of prefibrillar assemblies.
3948 18457421 We have previously demonstrated the potent inhibitory potential of phenolsulfonphthalein, a nontoxic compound that was approved for diagnostic use in human subjects, on aggregation of islet amyloid polypeptide (IAPP) that is associated with type 2 diabetes.
3949 18457421 Differential activity was also observed in the inhibition of insulin amyloid formation by these two compounds, and density-gradient experiments clearly demonstrated the different inhibitory effect of the two compounds on the formation of prefibrillar assemblies.
3950 18457428 Rifampicin does not prevent amyloid fibril formation by human islet amyloid polypeptide but does inhibit fibril thioflavin-T interactions: implications for mechanistic studies of beta-cell death.
3951 18457428 Recent studies have highlighted the potential use of rifampicin as an inhibitor of amyloid formation by a variety of polypeptides; however, there are conflicting reports on its ability to inhibit amyloid formation by islet amyloid polypeptide (IAPP).
3952 18457428 Rifampicin does not prevent amyloid fibril formation by human islet amyloid polypeptide but does inhibit fibril thioflavin-T interactions: implications for mechanistic studies of beta-cell death.
3953 18457428 Recent studies have highlighted the potential use of rifampicin as an inhibitor of amyloid formation by a variety of polypeptides; however, there are conflicting reports on its ability to inhibit amyloid formation by islet amyloid polypeptide (IAPP).
3954 18466898 Therefore, the present study was designed to test the effects of the insulin-releasing gut hormone, glucagon-like peptide 1 (GLP-1).
3955 18466898 The injection of (Val8)GLP-1 (15 nmol i.c.v.) 30 min prior to injection of amyloid (25-35) (100 nmol i.c.v.) fully reversed the impairment of LTP induced by beta-amyloid.
3956 18483477 The aim of this study was to determine whether amyloid precursor protein (APP) is expressed in human adipose tissue, dysregulated in obesity, and related to insulin resistance and inflammation.
3957 18483477 APP expression correlated to in vivo indices of insulin resistance independently of BMI and with the expression of proinflammatory genes, such as monocyte chemoattractant protein-1 (MCP-1) (R=0.62, P=0.004), macrophage inflammatory protein-1alpha (MIP-1alpha) (R=0.60, P=0.005), and interleukin-6 (IL-6) (R=0.71, P=0.0005).
3958 18483477 In summary, APP is highly expressed in adipose tissue, upregulated in obesity, and expression levels correlate with insulin resistance and adipocyte cytokine expression levels.
3959 18483477 These data suggest a possible role for APP and/or Abeta in the development of obesity-related insulin resistance and adipose tissue inflammation.
3960 18483616 Recent insights in islet amyloid polypeptide-induced membrane disruption and its role in beta-cell death in type 2 diabetes mellitus.
3961 18483616 The presence of fibrillar protein deposits (amyloid) of human islet amyloid polypeptide (hIAPP) in the pancreatic islets of Langerhans is thought to be related to death of the insulin-producing islet beta-cells in type 2 diabetes mellitus (DM2).
3962 18483616 Recent insights in islet amyloid polypeptide-induced membrane disruption and its role in beta-cell death in type 2 diabetes mellitus.
3963 18483616 The presence of fibrillar protein deposits (amyloid) of human islet amyloid polypeptide (hIAPP) in the pancreatic islets of Langerhans is thought to be related to death of the insulin-producing islet beta-cells in type 2 diabetes mellitus (DM2).
3964 18497871 Human islet amyloid polypeptide transgenic mice: in vivo and ex vivo models for the role of hIAPP in type 2 diabetes mellitus.
3965 18497871 Human islet amyloid polypeptide (hIAPP), a pancreatic islet protein of 37 amino acids, is the main component of islet amyloid, seen at autopsy in patients with type 2 diabetes mellitus (DM2).
3966 18497871 To investigate the roles of hIAPP and islet amyloid in DM2, we generated transgenic mice expressing hIAPP in their islet beta cells.
3967 18497871 In this study, we found that after a long-term, high-fat diet challenge islet amyloid was observed in only 4 of 19 hIAPP transgenic mice. hIAPP transgenic females exhibited severe glucose intolerance, which was associated with a downregulation of GLUT-2 mRNA expression.
3968 18497871 Human islet amyloid polypeptide transgenic mice: in vivo and ex vivo models for the role of hIAPP in type 2 diabetes mellitus.
3969 18497871 Human islet amyloid polypeptide (hIAPP), a pancreatic islet protein of 37 amino acids, is the main component of islet amyloid, seen at autopsy in patients with type 2 diabetes mellitus (DM2).
3970 18497871 To investigate the roles of hIAPP and islet amyloid in DM2, we generated transgenic mice expressing hIAPP in their islet beta cells.
3971 18497871 In this study, we found that after a long-term, high-fat diet challenge islet amyloid was observed in only 4 of 19 hIAPP transgenic mice. hIAPP transgenic females exhibited severe glucose intolerance, which was associated with a downregulation of GLUT-2 mRNA expression.
3972 18497871 Human islet amyloid polypeptide transgenic mice: in vivo and ex vivo models for the role of hIAPP in type 2 diabetes mellitus.
3973 18497871 Human islet amyloid polypeptide (hIAPP), a pancreatic islet protein of 37 amino acids, is the main component of islet amyloid, seen at autopsy in patients with type 2 diabetes mellitus (DM2).
3974 18497871 To investigate the roles of hIAPP and islet amyloid in DM2, we generated transgenic mice expressing hIAPP in their islet beta cells.
3975 18497871 In this study, we found that after a long-term, high-fat diet challenge islet amyloid was observed in only 4 of 19 hIAPP transgenic mice. hIAPP transgenic females exhibited severe glucose intolerance, which was associated with a downregulation of GLUT-2 mRNA expression.
3976 18497871 Human islet amyloid polypeptide transgenic mice: in vivo and ex vivo models for the role of hIAPP in type 2 diabetes mellitus.
3977 18497871 Human islet amyloid polypeptide (hIAPP), a pancreatic islet protein of 37 amino acids, is the main component of islet amyloid, seen at autopsy in patients with type 2 diabetes mellitus (DM2).
3978 18497871 To investigate the roles of hIAPP and islet amyloid in DM2, we generated transgenic mice expressing hIAPP in their islet beta cells.
3979 18497871 In this study, we found that after a long-term, high-fat diet challenge islet amyloid was observed in only 4 of 19 hIAPP transgenic mice. hIAPP transgenic females exhibited severe glucose intolerance, which was associated with a downregulation of GLUT-2 mRNA expression.
3980 18498175 Effect of pressure on islet amyloid polypeptide aggregation: revealing the polymorphic nature of the fibrillation process.
3981 18498175 Type II diabetes mellitus is a disease which is characterized by peripheral insulin resistance coupled with a progressive loss of insulin secretion that is associated with a decrease in pancreatic islet beta-cell mass and the deposition of amyloid in the extracellular matrix of beta-cells, which lead to islet cell death.
3982 18498175 The principal component of the islet amyloid is a pancreatic hormone called islet amyloid polypeptide (IAPP).
3983 18498175 Effect of pressure on islet amyloid polypeptide aggregation: revealing the polymorphic nature of the fibrillation process.
3984 18498175 Type II diabetes mellitus is a disease which is characterized by peripheral insulin resistance coupled with a progressive loss of insulin secretion that is associated with a decrease in pancreatic islet beta-cell mass and the deposition of amyloid in the extracellular matrix of beta-cells, which lead to islet cell death.
3985 18498175 The principal component of the islet amyloid is a pancreatic hormone called islet amyloid polypeptide (IAPP).
3986 18498175 Effect of pressure on islet amyloid polypeptide aggregation: revealing the polymorphic nature of the fibrillation process.
3987 18498175 Type II diabetes mellitus is a disease which is characterized by peripheral insulin resistance coupled with a progressive loss of insulin secretion that is associated with a decrease in pancreatic islet beta-cell mass and the deposition of amyloid in the extracellular matrix of beta-cells, which lead to islet cell death.
3988 18498175 The principal component of the islet amyloid is a pancreatic hormone called islet amyloid polypeptide (IAPP).
3989 18556473 Atomic structure of the cross-beta spine of islet amyloid polypeptide (amylin).
3990 18556473 Human islet amyloid polypeptide (IAPP or amylin) is a 37-residue hormone found as fibrillar deposits in pancreatic extracts of nearly all type II diabetics.
3991 18556473 Atomic structure of the cross-beta spine of islet amyloid polypeptide (amylin).
3992 18556473 Human islet amyloid polypeptide (IAPP or amylin) is a 37-residue hormone found as fibrillar deposits in pancreatic extracts of nearly all type II diabetics.
3993 18566678 The role of the 14-20 domain of the islet amyloid polypeptide in amyloid formation.
3994 18566678 The molecular mechanism of amyloid formation by the islet amyloid polypeptide (IAPP) has been intensively studied since its identification in the late 1980s.
3995 18566678 The role of the 14-20 domain of the islet amyloid polypeptide in amyloid formation.
3996 18566678 The molecular mechanism of amyloid formation by the islet amyloid polypeptide (IAPP) has been intensively studied since its identification in the late 1980s.
3997 18566681 Real-time monitoring of apoptosis by caspase-3-like protease induced FRET reduction triggered by amyloid aggregation.
3998 18584041 Acute-phase serum amyloid A as a marker of insulin resistance in mice.
3999 18584041 Acute-phase serum amyloid A (A-SAA) was shown recently to correlate with obesity and insulin resistance in humans.
4000 18584041 Plasma A-SAA elevation was due to induction of Saa1 and Saa2 expression in liver but not in adipose tissue.
4001 18584041 Proinflammatory genes (Ccl2, Saa3) were induced while genes critical for insulin sensitivity (Irs1, Adipoq, Glut4) were down-regulated.
4002 18584041 Acute-phase serum amyloid A as a marker of insulin resistance in mice.
4003 18584041 Acute-phase serum amyloid A (A-SAA) was shown recently to correlate with obesity and insulin resistance in humans.
4004 18584041 Plasma A-SAA elevation was due to induction of Saa1 and Saa2 expression in liver but not in adipose tissue.
4005 18584041 Proinflammatory genes (Ccl2, Saa3) were induced while genes critical for insulin sensitivity (Irs1, Adipoq, Glut4) were down-regulated.
4006 18603587 When bound by its many ligands (which include advanced glycation endproducts, certain members of the S100/calgranulin family, extracellular high-mobility group box 1, the integrin Mac-1, amyloid beta-peptide and fibrils), RAGE activates programs responsible for acute and chronic inflammation.
4007 18615201 Disturbed alpha-cell function in mice with beta-cell specific overexpression of human islet amyloid polypeptide.
4008 18615201 Exogenous administration of islet amyloid polypeptide (IAPP) has been shown to inhibit both insulin and glucagon secretion.
4009 18615201 Disturbed alpha-cell function in mice with beta-cell specific overexpression of human islet amyloid polypeptide.
4010 18615201 Exogenous administration of islet amyloid polypeptide (IAPP) has been shown to inhibit both insulin and glucagon secretion.
4011 18621727 Molecular basis for the thiol sensitivity of insulin-degrading enzyme.
4012 18621727 Insulin-degrading enzyme (IDE) is a ubiquitous zinc-metalloprotease that hydrolyzes several pathophysiologically relevant peptides, including insulin and the amyloid beta-protein (Abeta).
4013 18621727 IDE is inhibited irreversibly by compounds that covalently modify cysteine residues, a mechanism that could be operative in the etiology of type 2 diabetes mellitus (DM2) or Alzheimer's disease (AD).
4014 18621727 Unexpectedly, alkylation of C590 was found to activate hydrolysis of Abeta significantly, while having no effect on insulin, demonstrating that chemical modulation of IDE can be both bidirectional and highly substrate selective.
4015 18621727 Our findings resolve a long-standing riddle about the basic enzymology of IDE with important implications for the etiology of DM2 and AD.
4016 18624122 In response to hyperglycemia, beta-cells release insulin and C-peptide, as well as islet amyloid pancreatic polypeptide - amylin.
4017 18624122 Amylin replacement with pramlintide as an adjunct to insulin therapy is a novel physiological approach toward improved long-term glycemic and weight control in patients with type 1 and type 2 diabetes.
4018 18633116 Spontaneous diabetes in hemizygous human amylin transgenic mice that developed neither islet amyloid nor peripheral insulin resistance.
4019 18655073 Insulin is a favored model for amyloid formation, not only because amyloidosis can be a problem in diabetes, but also because aggregation and fibrillation causes problems during production, storage, and delivery.
4020 18665237 Albumin has been implicated in Alzheimer's disease (AD) since it can bind to and transport amyloid beta (Abeta), the causative agent of AD; albumin is also a potent inhibitor of Abeta polymerization.
4021 18665237 These data indicate that microglial cells may play a beneficial role in AD by secreting albumin that not only inhibits Abeta polymerization but also increases its clearance.
4022 18710262 Human amylin, or islet amyloid polypeptide, is a peptide cosecreted with insulin by the beta cells of the pancreatic islets of Langerhans.
4023 18723371 The proinflammatory cytokine Interleukin 1 beta (IL-1beta) is elevated in obese individuals and rodents and it is implicated in impaired insulin secretion, decreased cell proliferation and apoptosis of pancreatic beta cells.
4024 18723371 After 13 weeks of treatment the IL-1beta antibody treated group showed reduced glycated hemoglobin (( *)P=0.049), reduced serum levels of proinsulin (( *)P=0.015), reduced levels of insulin and smaller islet size (( *)P=1.65E-13) relative to the control antibody treated group.
4025 18723371 Neutralization of IL-1beta also significantly reduced serum amyloid A (SAA) which is an indicator of inflammation-induced acute phase response (( *)P=0.024).
4026 18765820 Interaction of membrane-bound islet amyloid polypeptide with soluble and crystalline insulin.
4027 18765820 Islet amyloid polypeptide (IAPP, also known as amylin) is the major protein component of pancreatic amyloid fibers in type II diabetes and is normally cosecreted with insulin from the beta-cells of the pancreas.
4028 18765820 In this work, we investigate insulin-IAPP-lipid interactions in vitro under conditions chosen to approximate native secretory vesicle physiology and the amyloid disease state.
4029 18765820 Interaction of membrane-bound islet amyloid polypeptide with soluble and crystalline insulin.
4030 18765820 Islet amyloid polypeptide (IAPP, also known as amylin) is the major protein component of pancreatic amyloid fibers in type II diabetes and is normally cosecreted with insulin from the beta-cells of the pancreas.
4031 18765820 In this work, we investigate insulin-IAPP-lipid interactions in vitro under conditions chosen to approximate native secretory vesicle physiology and the amyloid disease state.
4032 18765820 Interaction of membrane-bound islet amyloid polypeptide with soluble and crystalline insulin.
4033 18765820 Islet amyloid polypeptide (IAPP, also known as amylin) is the major protein component of pancreatic amyloid fibers in type II diabetes and is normally cosecreted with insulin from the beta-cells of the pancreas.
4034 18765820 In this work, we investigate insulin-IAPP-lipid interactions in vitro under conditions chosen to approximate native secretory vesicle physiology and the amyloid disease state.
4035 18777156 Our aim was to study, at the same glycemic control, how treatment with either the insulin secretagogue repaglinide or exogenous insulin aspart affects endogenous insulin secretion, plasma insulin and IAPP (islet amyloid polypeptide) levels, GH-IGF (growth hormone-insulin-like growth factor) axis and plasma lipoprotein concentrations in patients with type 2 diabetes.
4036 18777156 Blood glucose, C-peptide, free human insulin, free total (human and analogue) insulin, proinsulin, IAPP, IGF-I, IGFBP-1 (IGF binding protein-1), GHBP (growth hormone binding protein) and plasma lipoprotein concentrations were measured.
4037 18777156 Proinsulin, GHBP were higher and IAPP levels tended to be higher during repaglinide compared to insulin aspart.
4038 18777156 Postprandial plasma total cholesterol, triglycerides and apolipoprotein B concentrations were higher on repaglinide than on insulin aspart treatment.
4039 18788162 The cytoplasm of B cells and extracellular amyloid display immunohistological binding of anti-insulin antibody.
4040 18788162 Correspondingly, ferritin-labeled anti-insulin antibody was found by electron microscopy on and between the amyloid fibrils.
4041 18788162 Insulin or proinsulin (or a protein closely related to insulin) thus appears to be a component of the protein which constitutes the amyloid.
4042 18788162 The cytoplasm of B cells and extracellular amyloid display immunohistological binding of anti-insulin antibody.
4043 18788162 Correspondingly, ferritin-labeled anti-insulin antibody was found by electron microscopy on and between the amyloid fibrils.
4044 18788162 Insulin or proinsulin (or a protein closely related to insulin) thus appears to be a component of the protein which constitutes the amyloid.
4045 18788162 The cytoplasm of B cells and extracellular amyloid display immunohistological binding of anti-insulin antibody.
4046 18788162 Correspondingly, ferritin-labeled anti-insulin antibody was found by electron microscopy on and between the amyloid fibrils.
4047 18788162 Insulin or proinsulin (or a protein closely related to insulin) thus appears to be a component of the protein which constitutes the amyloid.
4048 18813861 Therefore, we directly investigated exercise training to determine whether it was able to ameliorate the molecular pathogenic phenotypes in the brain using a neuron-specific enolase (NSE)/Swedish mutation of amyloid precursor protein (APPsw) transgenic (Tg) mice as a novel AD model.
4049 18813861 The results indicated (i) that amyloid beta-42 (Abeta-42) peptides were significantly decreased in the NSE/APPsw Tg mice following exercise training; (ii) that exercise training inhibited the apoptotic biochemical cascades, including cytochrome c, caspase-9, caspase-3 and Bax; (iii) that the glucose transporter-1 (GLUT-1) and brain-derived neurotrophic factor (BDNF) proteins induced by exercise training protected the neurons from injury by inducing the concomitant expression of genes that encode proteins such as superoxide dismutase-1 (SOD-1), catalase and Bcl-2, which suppress oxidative stress and excitotoxic injury; (iv) that heat-shock protein-70 (HSP-70) and glucose-regulated protein-78 (GRP-78) were significantly increased in the exercise (EXE) group when compared to the sedentary (SED) group, and that these proteins may benefit the brain by making it more resistant to stress-induced neuron cell damage; (v) and that exercise training contributed to the restoration of normal levels of serum total cholesterol, insulin and glucose.
4050 18813861 Therefore, we directly investigated exercise training to determine whether it was able to ameliorate the molecular pathogenic phenotypes in the brain using a neuron-specific enolase (NSE)/Swedish mutation of amyloid precursor protein (APPsw) transgenic (Tg) mice as a novel AD model.
4051 18813861 The results indicated (i) that amyloid beta-42 (Abeta-42) peptides were significantly decreased in the NSE/APPsw Tg mice following exercise training; (ii) that exercise training inhibited the apoptotic biochemical cascades, including cytochrome c, caspase-9, caspase-3 and Bax; (iii) that the glucose transporter-1 (GLUT-1) and brain-derived neurotrophic factor (BDNF) proteins induced by exercise training protected the neurons from injury by inducing the concomitant expression of genes that encode proteins such as superoxide dismutase-1 (SOD-1), catalase and Bcl-2, which suppress oxidative stress and excitotoxic injury; (iv) that heat-shock protein-70 (HSP-70) and glucose-regulated protein-78 (GRP-78) were significantly increased in the exercise (EXE) group when compared to the sedentary (SED) group, and that these proteins may benefit the brain by making it more resistant to stress-induced neuron cell damage; (v) and that exercise training contributed to the restoration of normal levels of serum total cholesterol, insulin and glucose.
4052 18825272 Transthyretin and amyloid in the islets of Langerhans in type-2 diabetes.
4053 18825272 Transthyretin (TTR) is a major amyloid fibril protein in certain systemic forms of amyloidosis.
4054 18825272 A weak transthyretin immunoreaction in IAPP-derived amyloid occurred in some specimens.
4055 18825272 In seeding experiments in vitro, we found that TTR fibrils did not seed IAPP while IAPP fibrils seeded TTR.
4056 18825272 Transthyretin and amyloid in the islets of Langerhans in type-2 diabetes.
4057 18825272 Transthyretin (TTR) is a major amyloid fibril protein in certain systemic forms of amyloidosis.
4058 18825272 A weak transthyretin immunoreaction in IAPP-derived amyloid occurred in some specimens.
4059 18825272 In seeding experiments in vitro, we found that TTR fibrils did not seed IAPP while IAPP fibrils seeded TTR.
4060 18825272 Transthyretin and amyloid in the islets of Langerhans in type-2 diabetes.
4061 18825272 Transthyretin (TTR) is a major amyloid fibril protein in certain systemic forms of amyloidosis.
4062 18825272 A weak transthyretin immunoreaction in IAPP-derived amyloid occurred in some specimens.
4063 18825272 In seeding experiments in vitro, we found that TTR fibrils did not seed IAPP while IAPP fibrils seeded TTR.
4064 18855585 Peripheral hyperinsulinemia correlates with an abnormal removal of the amyloid beta peptide (Abeta) and an increase of tau hyperphosphorylation as a result of augmented cdk5 and GSK3beta activities.
4065 18922715 We show examples of low-temperature (13)C NMR data for two biomolecular samples, namely the peptide Abeta(14-23) in the form of amyloid fibrils and the protein HP35 in frozen glycerol/water solution.
4066 18936727 In addition to advanced glycation end products (AGEs), RAGE binds amphoterin, S100/calgranulin, amyloid, transthyretin, and a leukocyte integrin, Mac-1.
4067 18989932 Structures of rat and human islet amyloid polypeptide IAPP(1-19) in micelles by NMR spectroscopy.
4068 18989933 A single mutation in the nonamyloidogenic region of islet amyloid polypeptide greatly reduces toxicity.
4069 18989933 Islet amyloid polypeptide (IAPP or amylin) is a 37-residue peptide secreted with insulin by beta-cells in the islets of Langerhans.
4070 18989933 A single mutation in the nonamyloidogenic region of islet amyloid polypeptide greatly reduces toxicity.
4071 18989933 Islet amyloid polypeptide (IAPP or amylin) is a 37-residue peptide secreted with insulin by beta-cells in the islets of Langerhans.
4072 18991244 The effects of the different egg diets on apolipoprotein A1 and B (Apo A1 and B), lipoprotein (a), creatinine, cystatin C, C-reactive protein, serum amyloid protein A, interleukin 6, triglycerides, glucose, total-, high-density lipoprotein and low-density lipo-protein cholesterol concentrations were analyzed.
4073 18991244 Consumption of omega-3 enriched eggs resulted in higher levels of ApoA1, lower ApoB/ApoA1 ratio and lower plasma glucose.
4074 18998217 Rosiglitazone, peroxisome proliferator-activated receptor-gamma agonist, is an insulin sensitizing agent in peripheral tissues.
4075 18998217 There were significant differences in cocaine- and amphetamine-regulated transcript (CART) and pancreatic polypeptide (PP) cell numbers between rosiglitazone control group and rosiglitazone + STZ-diabetic group.
4076 18998217 We found a statistically significant difference in islet amyloid polypeptide (IAPP) mRNA signals between the STZ-diabetic group and the rosiglitazone + STZ-diabetic group.
4077 19026743 For instance, in AD the accumulation of the amyloid-beta peptide (Abeta), which characterizes the disease and is thought to participate in the neurodegenerative process, may also induce neuronal insulin resistance.
4078 19026743 Conversely, disrupting normal glucose metabolism in transgenic animal models of AD that over-express the human amyloid precursor protein (hAPP) promotes amyloid-peptide aggregation and accelerates the disease progression.
4079 19026743 Studying these processes at a cellular level suggests that insulin resistance and Abeta aggregation may not only be the consequence of excitotoxicity, aberrant Ca(2+) signals, and proinflammatory cytokines such as TNF-alpha, but may also promote these pathological effectors.
4080 19026743 At the molecular level, insulin resistance and Abeta disrupt common signal transduction cascades including the insulin receptor family/PI3 kinase/Akt/GSK3 pathway.
4081 19038266 Abeta(1-40) fibril polymorphism implies diverse interaction patterns in amyloid fibrils.
4082 19038266 Alzheimer's amyloid fibrils consist of amyloid-beta (Abeta) peptide and occur in a range of structurally different fibril morphologies.
4083 19038266 The structural characteristics of 12 single Abeta(1-40) amyloid fibrils, all formed under the same solution conditions, were determined by electron cryo-microscopy and three-dimensional reconstruction.
4084 19038266 Abeta(1-40) fibril polymorphism implies diverse interaction patterns in amyloid fibrils.
4085 19038266 Alzheimer's amyloid fibrils consist of amyloid-beta (Abeta) peptide and occur in a range of structurally different fibril morphologies.
4086 19038266 The structural characteristics of 12 single Abeta(1-40) amyloid fibrils, all formed under the same solution conditions, were determined by electron cryo-microscopy and three-dimensional reconstruction.
4087 19038266 Abeta(1-40) fibril polymorphism implies diverse interaction patterns in amyloid fibrils.
4088 19038266 Alzheimer's amyloid fibrils consist of amyloid-beta (Abeta) peptide and occur in a range of structurally different fibril morphologies.
4089 19038266 The structural characteristics of 12 single Abeta(1-40) amyloid fibrils, all formed under the same solution conditions, were determined by electron cryo-microscopy and three-dimensional reconstruction.
4090 19100955 The amyloid hypothesis of type 2 diabetes mellitus postulates that elevated levels of normally expressed monomeric proteins of human islet amyloid polypeptide (hIAPP) trigger oligomerization that independently causes fibril formation and disease progression.
4091 19100955 Several markers for insulin, IAPP, amyloid fibrils (thioflavin T), and apoptosis (cleaved caspase-3) were used in combination with an oligomer-specific antibody.
4092 19100955 The amyloid hypothesis of type 2 diabetes mellitus postulates that elevated levels of normally expressed monomeric proteins of human islet amyloid polypeptide (hIAPP) trigger oligomerization that independently causes fibril formation and disease progression.
4093 19100955 Several markers for insulin, IAPP, amyloid fibrils (thioflavin T), and apoptosis (cleaved caspase-3) were used in combination with an oligomer-specific antibody.
4094 19117266 BACE2 is a protease homologous to BACE1 protein, an enzyme involved in the amyloid formation of Alzheimer disease (AD).
4095 19117266 BACE2 immunoreactivity was found in secretory granules of beta cells, co-stored with insulin and IAPP, while it was lacking in the other endocrine and exocrine cell types.
4096 19135149 Whereas insulin is clearly neurothrophic at moderate concentrations, too much insulin in the brain may be associated with reduced amyloid-beta (Abeta) clearance due to competition for their common and main depurative mechanism - the Insulin-Degrading Enzyme (IDE).
4097 19135149 Since IDE is much more selective for insulin than for Abeta, brain hyperinsulinism may deprive Abeta of its main clearance mechanism.
4098 19135149 Hyperglycemia and hyperinsulinemia seems to accelerate brain aging also by inducing tau hyperphosphorylation and amyloid oligomerization, as well as by leading to widespread brain microangiopathy.
4099 19165839 Inhibiting islet amyloid polypeptide fibril formation by the red wine compound resveratrol.
4100 19188609 Protection of synapses against Alzheimer's-linked toxins: insulin signaling prevents the pathogenic binding of Abeta oligomers.
4101 19188609 Synapse deterioration underlying severe memory loss in early Alzheimer's disease (AD) is thought to be caused by soluble amyloid beta (Abeta) oligomers.
4102 19188609 Before spine loss, ADDLs caused major downregulation of plasma membrane insulin receptors (IRs), via a mechanism sensitive to calcium calmodulin-dependent kinase II (CaMKII) and casein kinase II (CK2) inhibition.
4103 19195555 Amylin, a 37-amino acid peptide hormone produced and secreted by pancreatic beta-cells, is the principal constituent of amyloid deposits in Type II Diabetes Mellitus (TTDM).
4104 19208933 Important examples of the latter include the Abeta peptide of Alzheimer's disease, atrial natriuretic factor, calcitonin, pro-calcitonin, islet amyloid polypeptide (IAPP, amylin), alpha-synuclein and the medin polypeptide.
4105 19229175 Here, we demonstrate application of PICUP to cross-linking of three amyloidogenic proteins the 40- and 42-residue amyloid beta-protein variants (Abeta40 and Abeta42), and calcitonin, and a control protein, growth-hormone releasing factor (GRF).
4106 19237574 Antidiabetic drug metformin (GlucophageR) increases biogenesis of Alzheimer's amyloid peptides via up-regulating BACE1 transcription.
4107 19237574 Insulin modulates metabolism of beta-amyloid precursor protein (APP) in neurons, decreasing the intracellular accumulation of beta-amyloid (Abeta) peptides, which are pivotal in AD pathogenesis.
4108 19237574 The present study investigates whether the widely prescribed insulin-sensitizing drug, metformin (Glucophage(R)), affects APP metabolism and Abeta generation in various cell models.
4109 19237574 We demonstrate that metformin, at doses that lead to activation of the AMP-activated protein kinase (AMPK), significantly increases the generation of both intracellular and extracellular Abeta species.
4110 19237574 Furthermore, the effect of metformin on Abeta generation is mediated by transcriptional up-regulation of beta-secretase (BACE1), which results in an elevated protein level and increased enzymatic activity.
4111 19237574 Unlike insulin, metformin exerts no effect on Abeta degradation.
4112 19237574 In addition, we found that glucose deprivation and various tyrphostins, known inhibitors of insulin-like growth factors/insulin receptor tyrosine kinases, do not modulate the effect of metformin on Abeta.
4113 19237574 Finally, inhibition of AMP-activated protein kinase (AMPK) by the pharmacological inhibitor Compound C largely suppresses metformin's effect on Abeta generation and BACE1 transcription, suggesting an AMPK-dependent mechanism.
4114 19237574 Although insulin and metformin display opposing effects on Abeta generation, in combined use, metformin enhances insulin's effect in reducing Abeta levels.
4115 19244088 Serum amyloid A, C-reactive protein, and retinal microvascular changes in hypertensive diabetic and nondiabetic individuals: an Anglo-Scandinavian Cardiac Outcomes Trial (ASCOT) substudy.
4116 19277203 More than 10 years ago, we demonstrated that amyloid deposits rapidly formed in human islets and in mouse islets transgenic for human IAPP when grafted into nude mice.
4117 19278224 Induction of negative curvature as a mechanism of cell toxicity by amyloidogenic peptides: the case of islet amyloid polypeptide.
4118 19322705 Epidemiological evidence accruing in the human suggests upregulation of RAGE's ligands (AGEs, S100/calgranulins, high mobility group box-1 (HMGB1), and amyloid beta-peptide and beta-sheet fibrils) and the receptor itself at sites of inflammation and in chronic diseases such as diabetes and neurodegeneration.
4119 19343195 Importance of aggregated islet amyloid polypeptide for the progressive beta-cell failure in type 2 diabetes and in transplanted human islets.
4120 19346479 Using a recently invented method of collecting 2-dimensional infrared spectra and site-specific isotope labeling, we have measured the development of secondary structures for 6 residues during the aggregation process of the 37-residue polypeptide associated with type 2 diabetes, the human islet amyloid polypeptide (hIAPP).
4121 19364070 Engrafted beta-cells showed positive carboxypeptidase E (CPE) and prohormone convertase 1 (PC1) staining, while prohormone convertase 2 (PC2) was undetectable.
4122 19364070 Cell cycle inhibitors p16(INK4), p21(WAF1), and p27(Kip1) were abundantly expressed in the islet grafts and showed a predominant nuclear localization.
4123 19364070 In conclusion, diabetic nude mice transplanted with human islets showed disproportionate hyperproinsulinemia and graft evidence of beta-cell restricted PC2 depletion, amyloid deposition and beta-cell death, and lack of beta-cell replication with nuclear translocation of p27(Kip1) and p21(WAF1) that together may contribute to delayed graft failure.
4124 19374013 The principal component of the amyloid deposits in Alzheimer's disease is the beta-amyloid polypeptide, while in type II diabetes the deposits consist primarily of Islet amyloid polypeptide.
4125 19376202 Hippocampal caspase-3+ and beta amyloid (Abeta+) cell numbers, as well as beta-site amyloid precursor protein-cleaving enzyme (BACE1) levels and activity, increased in both groups.
4126 19376202 Moreover, HFD-STZ treatment exacerbated stroke-induced cognitive deficits, additively increased MCAO-induced activation of caspase-3, and increased levels of BACE1, C99 and Abeta.
4127 19376202 We concluded that type 2 diabetes exacerbated poststroke dementia possibly due to brain injury and synergistic generation of Abeta via activation of BACE1.
4128 19376973 Studies by solid-state nuclear magnetic resonance (NMR) of amyloid fibrils prepared in vitro from synthetic 40-residue beta-amyloid (Abeta(1-40)) peptides have shown that the molecular structure of Abeta(1-40) fibrils is not uniquely determined by amino acid sequence.
4129 19376973 Because amyloid structures propagate themselves in seeded growth, as shown in previous studies, the molecular structures of brain-seeded synthetic Abeta(1-40) fibrils most likely reflect structures that are present in AD brain.
4130 19376973 Studies by solid-state nuclear magnetic resonance (NMR) of amyloid fibrils prepared in vitro from synthetic 40-residue beta-amyloid (Abeta(1-40)) peptides have shown that the molecular structure of Abeta(1-40) fibrils is not uniquely determined by amino acid sequence.
4131 19376973 Because amyloid structures propagate themselves in seeded growth, as shown in previous studies, the molecular structures of brain-seeded synthetic Abeta(1-40) fibrils most likely reflect structures that are present in AD brain.
4132 19379129 Moreover, the presence of inductive factors in the Matrigel plus exendin-4 led to an increase in Pdx1 and endocrine genes, such as insulin, islet amyloid polypeptide, glucagon, the glucose transporter GLUT2, chromogranin A and the convertases PC1/3 and PC2 were also detected.
4133 19379129 We identified a population of PaSCs that express the ABCG2+ transporter and have the capacity to transdifferentiate into insulin-producing cells.
4134 19402658 Conformation preorganization: effects of S20G mutation on the structure of human islet amyloid polypeptide segment.
4135 19402658 The missense mutation S20G in the human islet amyloid polypeptide (hIAPP) is supposed to be associated with the early onset of type II diabetes (T2DM) in Asian population.
4136 19402658 Conformation preorganization: effects of S20G mutation on the structure of human islet amyloid polypeptide segment.
4137 19402658 The missense mutation S20G in the human islet amyloid polypeptide (hIAPP) is supposed to be associated with the early onset of type II diabetes (T2DM) in Asian population.
4138 19403868 Beneficial endocrine but adverse exocrine effects of sitagliptin in the human islet amyloid polypeptide transgenic rat model of type 2 diabetes: interactions with metformin.
4139 19405534 Association of highly compact type II diabetes related islet amyloid polypeptide intermediate species at physiological temperature revealed by diffusion NMR spectroscopy.
4140 19405534 Self-association of human islet amyloid polypeptide (hIAPP) is correlated with the development of type II diabetes by the disruption of cellular homeostasis in islet cells through the formation of membrane-active oligomers.
4141 19405534 Association of highly compact type II diabetes related islet amyloid polypeptide intermediate species at physiological temperature revealed by diffusion NMR spectroscopy.
4142 19405534 Self-association of human islet amyloid polypeptide (hIAPP) is correlated with the development of type II diabetes by the disruption of cellular homeostasis in islet cells through the formation of membrane-active oligomers.
4143 19413589 Imbalanced generation of the Abeta42 peptide from the amyloid beta protein precursor (APP) is implicated in the pathogenesis of Alzheimer's disease. 2.
4144 19427320 Human islet amyloid polypeptide (hIAPP), which is considered the primary culprit for beta-cell loss in type 2 diabetes mellitus patients, is synthesized in beta-cells of the pancreas from its precursor pro-islet amyloid polypeptide (proIAPP), which may be important in early intracellular amyloid formation as well.
4145 19456151 Three-dimensional structure and orientation of rat islet amyloid polypeptide protein in a membrane environment by solution NMR spectroscopy.
4146 19456151 Islet amyloid polypeptide (IAPP or amylin) is a 37-residue peptide hormone associated with glucose metabolism that is cosecreted with insulin by beta-cells in the pancreas.
4147 19456151 Three-dimensional structure and orientation of rat islet amyloid polypeptide protein in a membrane environment by solution NMR spectroscopy.
4148 19456151 Islet amyloid polypeptide (IAPP or amylin) is a 37-residue peptide hormone associated with glucose metabolism that is cosecreted with insulin by beta-cells in the pancreas.
4149 19461118 Furthermore, both statins reduced expression of microtubule-associated protein tau in astrocytes (P < 0.01), while both statins increased its expression in neuroblastoma cells (P < 0.01).
4150 19461118 In SK-N-SH cells, simvastatin significantly increased cyclin-dependent kinase 5 and glycogen synthase kinase 3beta expression, while pravastatin increased amyloid precursor protein expression.
4151 19470833 Type 2 diabetes is characterized by hyperglycemia, a deficit in beta-cells, increased beta-cell apoptosis, and islet amyloid derived from islet amyloid polypeptide (IAPP).
4152 19474523 Serum amyloid A attenuates cellular insulin sensitivity by increasing JNK activity in 3T3-L1 adipocytes.
4153 19474523 A permanent increase in acute-phase serum amyloid A (A-SAA) level is observed in obesity and insulin resistance.
4154 19474523 In this study, we used two cellular models of insulin resistance, one induced by treatment with tumor necrosis factor-alpha (TNF-alpha) and the other with the glucocorticoid dexamethasone.
4155 19474523 Gene expression analysis showed that SAA3 mRNA levels were increased in both models of insulin resistance, and ELISA showed that A-SAA levels were increased in both models too.
4156 19474523 To assess the potential impact of A-SAA on insulin resistance, we treated 3T3-L1 adipocytes with recombinant human SAA (Rh-SAA) and found that Rh-SAA attenuated cellular insulin sensitivity, up-regulated the level of phosphor-JNK, and down-regulated the level of phosphotyrosine-IRS-1 and the expression of glucose transporter 4 (GLUT4) in 3T3-L1 adipocytes.
4157 19474523 Pre-treatment of cells with C-Jun amino-terminal kinases (JNK) inhibitor brought about partial restoration of Rh-SAA-induced insulin resistance.
4158 19474523 In sum, our findings suggest that serum amyloid A might be a marker of insulin resistance, and it might play a major role in the development of obesity-related insulin resistance.
4159 19474523 Moreover, in our study it has been proved that JNK is indeed a crucial component of the pathway responsible for SAA-induced insulin resistance in 3T3-L1 adipocytes, which suggests that a selective interference with JNK activity might be a useful strategy in the treatment of Type 2 diabetes and other insulin-resistant states.
4160 19474523 Serum amyloid A attenuates cellular insulin sensitivity by increasing JNK activity in 3T3-L1 adipocytes.
4161 19474523 A permanent increase in acute-phase serum amyloid A (A-SAA) level is observed in obesity and insulin resistance.
4162 19474523 In this study, we used two cellular models of insulin resistance, one induced by treatment with tumor necrosis factor-alpha (TNF-alpha) and the other with the glucocorticoid dexamethasone.
4163 19474523 Gene expression analysis showed that SAA3 mRNA levels were increased in both models of insulin resistance, and ELISA showed that A-SAA levels were increased in both models too.
4164 19474523 To assess the potential impact of A-SAA on insulin resistance, we treated 3T3-L1 adipocytes with recombinant human SAA (Rh-SAA) and found that Rh-SAA attenuated cellular insulin sensitivity, up-regulated the level of phosphor-JNK, and down-regulated the level of phosphotyrosine-IRS-1 and the expression of glucose transporter 4 (GLUT4) in 3T3-L1 adipocytes.
4165 19474523 Pre-treatment of cells with C-Jun amino-terminal kinases (JNK) inhibitor brought about partial restoration of Rh-SAA-induced insulin resistance.
4166 19474523 In sum, our findings suggest that serum amyloid A might be a marker of insulin resistance, and it might play a major role in the development of obesity-related insulin resistance.
4167 19474523 Moreover, in our study it has been proved that JNK is indeed a crucial component of the pathway responsible for SAA-induced insulin resistance in 3T3-L1 adipocytes, which suggests that a selective interference with JNK activity might be a useful strategy in the treatment of Type 2 diabetes and other insulin-resistant states.
4168 19474523 Serum amyloid A attenuates cellular insulin sensitivity by increasing JNK activity in 3T3-L1 adipocytes.
4169 19474523 A permanent increase in acute-phase serum amyloid A (A-SAA) level is observed in obesity and insulin resistance.
4170 19474523 In this study, we used two cellular models of insulin resistance, one induced by treatment with tumor necrosis factor-alpha (TNF-alpha) and the other with the glucocorticoid dexamethasone.
4171 19474523 Gene expression analysis showed that SAA3 mRNA levels were increased in both models of insulin resistance, and ELISA showed that A-SAA levels were increased in both models too.
4172 19474523 To assess the potential impact of A-SAA on insulin resistance, we treated 3T3-L1 adipocytes with recombinant human SAA (Rh-SAA) and found that Rh-SAA attenuated cellular insulin sensitivity, up-regulated the level of phosphor-JNK, and down-regulated the level of phosphotyrosine-IRS-1 and the expression of glucose transporter 4 (GLUT4) in 3T3-L1 adipocytes.
4173 19474523 Pre-treatment of cells with C-Jun amino-terminal kinases (JNK) inhibitor brought about partial restoration of Rh-SAA-induced insulin resistance.
4174 19474523 In sum, our findings suggest that serum amyloid A might be a marker of insulin resistance, and it might play a major role in the development of obesity-related insulin resistance.
4175 19474523 Moreover, in our study it has been proved that JNK is indeed a crucial component of the pathway responsible for SAA-induced insulin resistance in 3T3-L1 adipocytes, which suggests that a selective interference with JNK activity might be a useful strategy in the treatment of Type 2 diabetes and other insulin-resistant states.
4176 19478200 MIF deficiency reduces chronic inflammation in white adipose tissue and impairs the development of insulin resistance, glucose intolerance, and associated atherosclerotic disease.
4177 19478200 This study examines whether MIF is required for the development of obesity, IR, glucose intolerance, and atherosclerosis in the LDL receptor-deficient (Ldlr(-/-)) mouse model of disease.
4178 19478200 Ldlr(-/-) mice develop IR and glucose intolerance within 15 weeks, whereas Mif(-/-)Ldlr(-/-) littermates are protected.
4179 19478200 MIF deficiency does not affect obesity and lipid risk factors but specifically reduces inflammation in WAT and liver, as reflected by lower plasma serum amyloid A and fibrinogen levels at baseline and under inflammatory conditions.
4180 19478200 Conversely, MIF stimulates the in vivo expression of human C-reactive protein, an inflammation marker and risk factor of IR and cardiovascular disease.
4181 19478200 In WAT, MIF deficiency reduces nuclear c-Jun levels and improves insulin sensitivity; MIF deficiency also reduces macrophage accumulation in WAT and blunts the expression of two proteins that regulate macrophage infiltration (intercellular adhesion molecule-1, CD44).
4182 19498343 Plasma concentrations of the acute-phase reactant serum amyloid A (SAA) are elevated in both obesity and cardiovascular disease.
4183 19498343 Moreover, SAA was localized with apoB-containing lipoproteins and biglycan in the vascular wall.
4184 19498343 Taken together, these data suggest male apoE-deficient mice are a model of metabolic syndrome and that chronic low level inflammation associated with increased SAA concentrations may mediate atherosclerotic lesion formation.
4185 19523795 DHA is specifically protective against AD via additional mechanisms: It limits the production and accumulation of the amyloid beta peptide toxin that is widely believed to drive the disease; and it also suppresses several signal transduction pathways induced by Abeta, including two major kinases that phosphorylate the microtubule-associated protein tau and promote neurofibrillary tangle pathology.
4186 19541956 However, amyloids may also have a normal biological function, as demonstrated by fungal prions, which are involved in prion replication, and the amyloid protein Pmel17, which is involved in mammalian skin pigmentation.
4187 19556854 This activity, which minimally requires Hsp70 and its co-chaperone Hsp40, is essential for yeast prion replication.
4188 19556854 We discuss the variety of effects Hsp70 and its regulators have on different prions and how the effects might be due to the many ways chaperones interact with each other and with amyloid.
4189 19583433 The islet amyloid polypeptide (IAPP) or amylin is a pancreatic hormone and crucially involved in the pathogenesis of type-II diabetes mellitus (T2DM).
4190 19597329 Structural polymorphism of Alzheimer Abeta and other amyloid fibrils.
4191 19616077 Role of the JNK-interacting protein 1/islet brain 1 in cell degeneration in Alzheimer disease and diabetes.
4192 19616077 Deposits of amyloid aggregate and hyperphosphorylation of tau, which are hallmarks of AD, have been also found in degenerating pancreatic islets beta-cells of patients with T2D.
4193 19616077 Increased c-Jun NH(2)-terminal kinase (JNK) activity is found in neurofibrillary tangles (NFT) of AD and promotes programmed cell death of beta-cells exposed to a diabetic environment.
4194 19616077 The JNK-interacting protein 1 (JIP-1), also called islet brain 1 (IB1) because it is mostly expressed in the brain and islets, is a key regulator of the JNK pathway in neuronal and beta-cells.
4195 19616077 JNK, hyperphosphorylated tau and IB1/JIP-1 all co-localize with amyloids deposits in NFT and islets of AD and patients with T2D.
4196 19616077 This review discusses the role of the IB1/JIP-1 and the JNK pathway in the molecular pathogenesis of AD and T2D.
4197 19647738 Ganglioside-induced amyloid formation by human islet amyloid polypeptide in lipid rafts.
4198 19647738 Human islet amyloid polypeptide (hIAPP) is the primary component of the amyloid deposits found in the pancreatic islets of patients with type 2 diabetes mellitus.
4199 19647738 Ganglioside-induced amyloid formation by human islet amyloid polypeptide in lipid rafts.
4200 19647738 Human islet amyloid polypeptide (hIAPP) is the primary component of the amyloid deposits found in the pancreatic islets of patients with type 2 diabetes mellitus.
4201 19647750 Helix stabilization precedes aqueous and bilayer-catalyzed fiber formation in islet amyloid polypeptide.
4202 19647750 Islet amyloid polypeptide (IAPP) is an unstructured polypeptide hormone that is cosecreted with insulin.
4203 19647750 Helix stabilization precedes aqueous and bilayer-catalyzed fiber formation in islet amyloid polypeptide.
4204 19647750 Islet amyloid polypeptide (IAPP) is an unstructured polypeptide hormone that is cosecreted with insulin.
4205 19666488 The repeat domain of the melanosome fibril protein Pmel17 forms the amyloid core promoting melanin synthesis.
4206 19666488 We suggest that RPT is the amyloid core domain of the Pmel17 filaments so critical for melanin formation.
4207 19666488 The repeat domain of the melanosome fibril protein Pmel17 forms the amyloid core promoting melanin synthesis.
4208 19666488 We suggest that RPT is the amyloid core domain of the Pmel17 filaments so critical for melanin formation.
4209 19669260 An HNF1alpha germline mutation is observed in less than 5% of HCA cases and can be associated with MODY 3 diabetes. (2) An activating beta-catenin mutation was found in 10% of HCA.
4210 19669260 These beta-catenin activated HCAs are observed in men and women, and specific risk factors, such as male hormone administration or glycogenosis, are associated with their development.
4211 19669260 Immunohistochemistry studies show that these HCAs overexpress beta-catenin (nuclear and cytoplasmic) and glutamine synthetase.
4212 19669260 They express serum amyloid A and C-reactive protein.
4213 19669260 An additional 10% of inflammatory HCAs express beta-catenin, and are also at risk of malignant transformation. (4) Currently, less than 10% of HCAs are unclassified.
4214 19672057 Plasma amyloid-beta peptide levels correlate with adipocyte amyloid precursor protein gene expression in obese individuals.
4215 19683329 Three patients with insulin dependent type 1 diabetes mellitus and one with insulin dependent type 2 diabetes mellitus developed localized amyloid tumors at their general insulin injection sites.
4216 19683329 Insulin was found to be the major component of the amyloid tumors in all four patients.
4217 19683329 These 4 cases were diagnosed recently within a relatively short period of time, which leads to the conjecture that local insulin-derived amyloid tumors remain principally a differential diagnosis of skin tumors in insulin-dependent diabetic patients.
4218 19683329 Three patients with insulin dependent type 1 diabetes mellitus and one with insulin dependent type 2 diabetes mellitus developed localized amyloid tumors at their general insulin injection sites.
4219 19683329 Insulin was found to be the major component of the amyloid tumors in all four patients.
4220 19683329 These 4 cases were diagnosed recently within a relatively short period of time, which leads to the conjecture that local insulin-derived amyloid tumors remain principally a differential diagnosis of skin tumors in insulin-dependent diabetic patients.
4221 19683329 Three patients with insulin dependent type 1 diabetes mellitus and one with insulin dependent type 2 diabetes mellitus developed localized amyloid tumors at their general insulin injection sites.
4222 19683329 Insulin was found to be the major component of the amyloid tumors in all four patients.
4223 19683329 These 4 cases were diagnosed recently within a relatively short period of time, which leads to the conjecture that local insulin-derived amyloid tumors remain principally a differential diagnosis of skin tumors in insulin-dependent diabetic patients.
4224 19720065 Cholesterol regulates assembly of human islet amyloid polypeptide on model membranes.
4225 19720065 Amylin, a 37-aa pancreatic hormone, is the major constituent of islet amyloid, a hallmark of type II diabetes mellitus.
4226 19720065 Cholesterol regulates assembly of human islet amyloid polypeptide on model membranes.
4227 19720065 Amylin, a 37-aa pancreatic hormone, is the major constituent of islet amyloid, a hallmark of type II diabetes mellitus.
4228 19758820 Association of serum amyloid A levels with adipocyte size and serum levels of adipokines: differences between men and women.
4229 19758820 The aim of this study was to characterize the association between adipocyte enlargement and circulating levels of serum amyloid A (SAA).
4230 19758820 Adipocyte diameter as well as circulating levels of SAA, C-reactive protein (CRP), adiponectin, leptin, interleukin-6, tumor necrosis factor alpha, glucose and insulin were measured.
4231 19758820 SAA levels were weakly but positively correlated with BMI (p=0.043) and % body fat (p=0.027) in all subjects as well as subcutaneous adipocyte diameter (p=0.034) in women.
4232 19758820 Furthermore, in all subjects we found correlations between SAA levels and levels of CRP (p<0.001), interleukin-6 (p<0.001), leptin (p=0.003), insulin (p=0.006), HbA1c (p=0.02) and HOMA-IR (p=0.002).
4233 19758820 Association of serum amyloid A levels with adipocyte size and serum levels of adipokines: differences between men and women.
4234 19758820 The aim of this study was to characterize the association between adipocyte enlargement and circulating levels of serum amyloid A (SAA).
4235 19758820 Adipocyte diameter as well as circulating levels of SAA, C-reactive protein (CRP), adiponectin, leptin, interleukin-6, tumor necrosis factor alpha, glucose and insulin were measured.
4236 19758820 SAA levels were weakly but positively correlated with BMI (p=0.043) and % body fat (p=0.027) in all subjects as well as subcutaneous adipocyte diameter (p=0.034) in women.
4237 19758820 Furthermore, in all subjects we found correlations between SAA levels and levels of CRP (p<0.001), interleukin-6 (p<0.001), leptin (p=0.003), insulin (p=0.006), HbA1c (p=0.02) and HOMA-IR (p=0.002).
4238 19794060 Tetracycline treatment retards the onset and slows the progression of diabetes in human amylin/islet amyloid polypeptide transgenic mice.
4239 19810772 Similarly, the misfolding of the beta-cell hormone human islet amyloid polypeptide (h-IAPP) into toxic oligomers plays a central role in the induction of beta-cell apoptosis in the context of type 2 diabetes.
4240 19810772 In this study, we show that annexin A5 plays a role in interacting with and reducing the toxicity of the amyloidogenic proteins, h-IAPP and alpha-synuclein.
4241 19810772 Experiments with transgenic expression of alpha-synuclein in Caenorhabditis elegans show that annexin A5 reduces alpha-synuclein inclusions in vivo.
4242 19810772 Using thioflavin T fluorescence, electron microscopy, and electron paramagnetic resonance, we provide evidence that substoichiometric amounts of annexin A5 inhibit h-IAPP and alpha-synuclein misfolding and fibril formation.
4243 19810772 We conclude that annexin A5 might act as a molecular safeguard against the formation of toxic amyloid aggregates.
4244 19810772 Similarly, the misfolding of the beta-cell hormone human islet amyloid polypeptide (h-IAPP) into toxic oligomers plays a central role in the induction of beta-cell apoptosis in the context of type 2 diabetes.
4245 19810772 In this study, we show that annexin A5 plays a role in interacting with and reducing the toxicity of the amyloidogenic proteins, h-IAPP and alpha-synuclein.
4246 19810772 Experiments with transgenic expression of alpha-synuclein in Caenorhabditis elegans show that annexin A5 reduces alpha-synuclein inclusions in vivo.
4247 19810772 Using thioflavin T fluorescence, electron microscopy, and electron paramagnetic resonance, we provide evidence that substoichiometric amounts of annexin A5 inhibit h-IAPP and alpha-synuclein misfolding and fibril formation.
4248 19810772 We conclude that annexin A5 might act as a molecular safeguard against the formation of toxic amyloid aggregates.
4249 19817482 Impaired processing of human pro-islet amyloid polypeptide is not a causative factor for fibril formation or membrane damage in vitro.
4250 19817482 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus (DM2). hIAPP is synthesized by islet beta-cells initially as a preprohormone, processing of which occurs in several steps.
4251 19817482 Impaired processing of human pro-islet amyloid polypeptide is not a causative factor for fibril formation or membrane damage in vitro.
4252 19817482 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus (DM2). hIAPP is synthesized by islet beta-cells initially as a preprohormone, processing of which occurs in several steps.
4253 19843871 Amylin is the major component of pancreatic amyloid, which is implicated in the development of type 2 diabetes.
4254 19917634 Basic research suggests that insulin accelerates Alzheimer-related pathology through its effects on the amyloid beta (Abeta).
4255 19917634 Moreover, amyloid imaging in non-demented older people with or without insulin resistance would verify the role of insulin in the processing and deposition of Abeta.
4256 19917634 Basic research suggests that insulin accelerates Alzheimer-related pathology through its effects on the amyloid beta (Abeta).
4257 19917634 Moreover, amyloid imaging in non-demented older people with or without insulin resistance would verify the role of insulin in the processing and deposition of Abeta.
4258 19945428 Insulin amyloid fibrillation studied by terahertz spectroscopy and other biophysical methods.
4259 19945428 To study the changes in secondary, tertiary, quaternary structures, and the alteration in the collective vibrational mode density of states during the amyloid fibrillation, bovine insulin in 20% acetic acid was incubated at 60 degrees C, and its multi-level structures were followed by various biophysical techniques, including circular dichroism (CD), thioflavin T fluorescence (ThT), dynamic light scattering (DLS), electron microscopy, and terahertz (THz) absorption spectroscopy.
4260 19945428 Insulin amyloid fibrillation studied by terahertz spectroscopy and other biophysical methods.
4261 19945428 To study the changes in secondary, tertiary, quaternary structures, and the alteration in the collective vibrational mode density of states during the amyloid fibrillation, bovine insulin in 20% acetic acid was incubated at 60 degrees C, and its multi-level structures were followed by various biophysical techniques, including circular dichroism (CD), thioflavin T fluorescence (ThT), dynamic light scattering (DLS), electron microscopy, and terahertz (THz) absorption spectroscopy.
4262 19948124 Islet amyloid polypeptide (amylin) is the main component in amyloid deposits formed in type II diabetes.
4263 19966530 In addition, Tanis was postulated as a hepatic receptor for an inflammatory marker, serum amyloid A-1 (SAA1), which represents a risk factor for cardiovascular disease.
4264 20019678 Subjects with T2D had higher VAT expression of molecules regulating inflammation (tumor necrosis factor-alpha (TNFalpha), macrophage inflammatory protein (MIP), interleukin-8 (IL-8)).
4265 20019678 Fasting glucose related to VAT expression of TNFalpha, MIP, serum amyloid A (SAA), IL-1alpha, IL-1beta, IL-8, and IL-8 receptor.
4266 20019678 Abdominal fat mass was related to VAT expression of MIP, SAA, cAMP response element-binding protein (CREBP), IL-1beta, and IL-8.
4267 20019678 There were depot-specific differences in expression of serum T2D predictors: VAT expressed higher levels of complement C3; SAT expressed higher levels of retinol-binding protein-4 (RBP4), adiponectin, and leptin.
4268 20028124 The ability of rodent islet amyloid polypeptide to inhibit amyloid formation by human islet amyloid polypeptide has important implications for the mechanism of amyloid formation and the design of inhibitors.
4269 20028124 Islet amyloid polypeptide (IAPP) is a 37-residue polypeptide hormone that is responsible for islet amyloid formation in type II diabetes.
4270 20028124 The ability of rodent islet amyloid polypeptide to inhibit amyloid formation by human islet amyloid polypeptide has important implications for the mechanism of amyloid formation and the design of inhibitors.
4271 20028124 Islet amyloid polypeptide (IAPP) is a 37-residue polypeptide hormone that is responsible for islet amyloid formation in type II diabetes.
4272 20030463 It was also demonstrated that neurotoxins, coined amyloid beta-derived diffusible ligands (ADDLs), disrupt signal transduction at synapses, making the cell insulin resistant.
4273 20036826 The first, Alzheimer's disease (AD), is the most prevalent neurodegenerative disease and is thought to be initiated by the aggregation of a natively unstructured peptide called amyloid beta (Abeta).
4274 20042670 Evidence for proteotoxicity in beta cells in type 2 diabetes: toxic islet amyloid polypeptide oligomers form intracellularly in the secretory pathway.
4275 20042670 The islet in type 2 diabetes mellitus (T2DM) is characterized by a deficit in beta cells and islet amyloid derived from islet amyloid polypeptide (IAPP), a protein co-expressed with insulin by beta cells.
4276 20042670 Evidence for proteotoxicity in beta cells in type 2 diabetes: toxic islet amyloid polypeptide oligomers form intracellularly in the secretory pathway.
4277 20042670 The islet in type 2 diabetes mellitus (T2DM) is characterized by a deficit in beta cells and islet amyloid derived from islet amyloid polypeptide (IAPP), a protein co-expressed with insulin by beta cells.
4278 20052582 The role of the disulfide bond in the interaction of islet amyloid polypeptide with membranes.
4279 20052582 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus.
4280 20052582 The role of the disulfide bond in the interaction of islet amyloid polypeptide with membranes.
4281 20052582 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus.
4282 20055378 Among these are Parkinson's disease (alpha-synuclein), Type II diabetes (islet amyloid polypeptide), and Alzheimer's disease (amyloid beta-peptide, Abeta).
4283 20069542 The 37-amino acid polypeptide islet amyloid polypeptide (IAPP), or amylin, is found as amyloid aggregates in the islets of Langerhans in patients with type II diabetes.
4284 20093026 Deposits consisting mainly of a small protein, called islet amyloid polypeptide (amylin), which aggregates into oligo-/polymeric beta sheet structures is responsible for cytotoxicity to the pancreatic beta-cells, thus inhibition of this process has been explored as a potential prevention or treatment.
4285 20110613 In contrast, sporadic AD has been proposed to start with an insulin-resistant brain state (IRBS).We investigated the effect of IRBS induced by intracerebroventricularly (icv) administered streptozotocin (STZ) on behavior, glycogen synthase kinase-3 (GSK) alpha/beta content, and the formation of AD-like morphological hallmarks Abeta and tau protein in AbetaPP Tg2576 mice.
4286 20110613 Soluble and aggregated Abeta40/42 fragments, total and phosphorylated tau protein, and GSK-3alpha/beta were determined by ELISA.
4287 20110613 In Tg mice, STZ treatment increased mortality, reduced spatial cognition, and increased cerebral aggregated Abeta fragments, total tau protein, and congophilic amyloid deposits.
4288 20132476 Insulin inhibits Abeta fibrillogenesis through a decrease of the GM1 ganglioside-rich microdomain in neuronal membranes.
4289 20132476 To investigate whether insulin is associated with the assembly of amyloid beta-protein from the cell surface, we treated nerve growth factor (NGF)-treated rat pheochromocytoma 12 (PC12) cells with insulin, which is related to the development of diabetes.
4290 20132476 Insulin treatment induced a decrease in GM1 ganglioside (GM1) levels in detergent-resistant membrane microdomains of NGF-treated PC12 cells.
4291 20132476 The insulin-induced effects on GM1 levels were regulated by a phosphatidylinositol 3-kinase inhibitor, but not by an extracellular signal-regulated kinase inhibitor.
4292 20132476 In addition, insulin failed to induce formation of fibrils from soluble amyloid beta-protein or to accelerate GM1-induced fibril formation.
4293 20132476 Furthermore, assembly of amyloid beta-protein in cultures of NGF-treated PC12 cells was significantly decreased by insulin.
4294 20132476 These results suggest that insulin inhibits amyloid beta-protein assembly by decreasing GM1 expression in detergent-resistant membrane microdomains of neuronal membranes.
4295 20132476 Insulin inhibits Abeta fibrillogenesis through a decrease of the GM1 ganglioside-rich microdomain in neuronal membranes.
4296 20132476 To investigate whether insulin is associated with the assembly of amyloid beta-protein from the cell surface, we treated nerve growth factor (NGF)-treated rat pheochromocytoma 12 (PC12) cells with insulin, which is related to the development of diabetes.
4297 20132476 Insulin treatment induced a decrease in GM1 ganglioside (GM1) levels in detergent-resistant membrane microdomains of NGF-treated PC12 cells.
4298 20132476 The insulin-induced effects on GM1 levels were regulated by a phosphatidylinositol 3-kinase inhibitor, but not by an extracellular signal-regulated kinase inhibitor.
4299 20132476 In addition, insulin failed to induce formation of fibrils from soluble amyloid beta-protein or to accelerate GM1-induced fibril formation.
4300 20132476 Furthermore, assembly of amyloid beta-protein in cultures of NGF-treated PC12 cells was significantly decreased by insulin.
4301 20132476 These results suggest that insulin inhibits amyloid beta-protein assembly by decreasing GM1 expression in detergent-resistant membrane microdomains of neuronal membranes.
4302 20132476 Insulin inhibits Abeta fibrillogenesis through a decrease of the GM1 ganglioside-rich microdomain in neuronal membranes.
4303 20132476 To investigate whether insulin is associated with the assembly of amyloid beta-protein from the cell surface, we treated nerve growth factor (NGF)-treated rat pheochromocytoma 12 (PC12) cells with insulin, which is related to the development of diabetes.
4304 20132476 Insulin treatment induced a decrease in GM1 ganglioside (GM1) levels in detergent-resistant membrane microdomains of NGF-treated PC12 cells.
4305 20132476 The insulin-induced effects on GM1 levels were regulated by a phosphatidylinositol 3-kinase inhibitor, but not by an extracellular signal-regulated kinase inhibitor.
4306 20132476 In addition, insulin failed to induce formation of fibrils from soluble amyloid beta-protein or to accelerate GM1-induced fibril formation.
4307 20132476 Furthermore, assembly of amyloid beta-protein in cultures of NGF-treated PC12 cells was significantly decreased by insulin.
4308 20132476 These results suggest that insulin inhibits amyloid beta-protein assembly by decreasing GM1 expression in detergent-resistant membrane microdomains of neuronal membranes.
4309 20132476 Insulin inhibits Abeta fibrillogenesis through a decrease of the GM1 ganglioside-rich microdomain in neuronal membranes.
4310 20132476 To investigate whether insulin is associated with the assembly of amyloid beta-protein from the cell surface, we treated nerve growth factor (NGF)-treated rat pheochromocytoma 12 (PC12) cells with insulin, which is related to the development of diabetes.
4311 20132476 Insulin treatment induced a decrease in GM1 ganglioside (GM1) levels in detergent-resistant membrane microdomains of NGF-treated PC12 cells.
4312 20132476 The insulin-induced effects on GM1 levels were regulated by a phosphatidylinositol 3-kinase inhibitor, but not by an extracellular signal-regulated kinase inhibitor.
4313 20132476 In addition, insulin failed to induce formation of fibrils from soluble amyloid beta-protein or to accelerate GM1-induced fibril formation.
4314 20132476 Furthermore, assembly of amyloid beta-protein in cultures of NGF-treated PC12 cells was significantly decreased by insulin.
4315 20132476 These results suggest that insulin inhibits amyloid beta-protein assembly by decreasing GM1 expression in detergent-resistant membrane microdomains of neuronal membranes.
4316 20153100 Aggregation of human islet amyloid polypeptide (hIAPP) into cytotoxic beta-sheet oligomers and amyloid plaques is considered a key event in pancreatic beta-cell degeneration in type 2 diabetes (T2D). hIAPP is synthesized in the pancreatic beta-cells and it is stored, co-processed in the secretory granules, and co-secreted to the extracellular matrix together with insulin.
4317 20153100 For comparison, the effects of insulin, which is a natively occurring hIAPP aggregation inhibitor, rat IAPP (rIAPP), which is a natively non-amyloidogenic hIAPP analog, and the hIAPP amyloid core peptide hIAPP(22-27) or NFGAIL were also studied.
4318 20153100 Aggregation of human islet amyloid polypeptide (hIAPP) into cytotoxic beta-sheet oligomers and amyloid plaques is considered a key event in pancreatic beta-cell degeneration in type 2 diabetes (T2D). hIAPP is synthesized in the pancreatic beta-cells and it is stored, co-processed in the secretory granules, and co-secreted to the extracellular matrix together with insulin.
4319 20153100 For comparison, the effects of insulin, which is a natively occurring hIAPP aggregation inhibitor, rat IAPP (rIAPP), which is a natively non-amyloidogenic hIAPP analog, and the hIAPP amyloid core peptide hIAPP(22-27) or NFGAIL were also studied.
4320 20160085 Aggregates of the beta cell peptide islet amyloid polypeptide (IAPP) promote beta cell apoptosis and rapid amyloid formation occurs in transplanted islets.
4321 20176106 The 51-residue polypeptide hormone insulin, which is associated with type II diabetes, has been shown to self-assemble to form amyloid fibrils in vitro.
4322 20182863 Amyloid formation is considered a significant factor in deterioration of islet function and reduction in beta cell mass, and involves aggregation of monomers of the normally soluble beta cell peptide, human islet amyloid polypeptide (hIAPP) into oligomers, fibrils and, ultimately, mature amyloid deposits.
4323 20190472 Immunostains with insulin antibody were positive for this deposition but not so with amylin or AA or AL amyloid.
4324 20213024 This receptor, which is frequently associated with proinflammatory responses, has been shown to be activated by various ligands such as high mobility group box-1 (HMGB1/amphoterin), amyloid fibrils, transthyrein, Mac-1 (Integrin Mac-1), as well as advanced glycation end products (AGEs).
4325 20229808 Peripheral hyperinsulinemia may link to cerebral insulin resistance, leading to the inhibition of removal of amyloid beta protein and the increase of tau hyperphosphorylation.
4326 20231468 Notably, APP(+)-ob/ob mice showed cerebrovascular inflammation and severe amyloid angiopathy.
4327 20308712 Additional pathological-anatomical investigations demonstrated insulin in one (the most recent) amyloid tumour.
4328 20369225 Differences between amyloid toxicity in alpha and beta cells in human and mouse islets and the role of caspase-3.
4329 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4330 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4331 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4332 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4333 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4334 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4335 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4336 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4337 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4338 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4339 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4340 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4341 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4342 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4343 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4344 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4345 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4346 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4347 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4348 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4349 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4350 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4351 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4352 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4353 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4354 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4355 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4356 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4357 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4358 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4359 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4360 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4361 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4362 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4363 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4364 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4365 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4366 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4367 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4368 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4369 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4370 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4371 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4372 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4373 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4374 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4375 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4376 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4377 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4378 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4379 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4380 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4381 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4382 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4383 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4384 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4385 20400513 Neprilysin impedes islet amyloid formation by inhibition of fibril formation rather than peptide degradation.
4386 20400513 Deposition of islet amyloid polypeptide (IAPP) as islet amyloid in type 2 diabetes contributes to loss of beta-cell function and mass, yet the mechanism for its occurrence is unclear.
4387 20400513 Neprilysin is a metallopeptidase known to degrade amyloid in Alzheimer disease.
4388 20400513 We previously demonstrated neprilysin to be present in pancreatic islets and now sought to determine whether it plays a role in degrading islet amyloid.
4389 20400513 Following neprilysin inhibition, islet amyloid deposition and beta-cell apoptosis increased by 54 and 75%, respectively, whereas when neprilysin was up-regulated islet amyloid deposition and beta-cell apoptosis both decreased by 79%.
4390 20400513 To determine if neprilysin modulated amyloid deposition by cleaving hIAPP, analysis of hIAPP incubated with neprilysin was performed by mass spectrometry, which failed to demonstrate neprilysin-induced cleavage.
4391 20400513 In summary, neprilysin decreases islet amyloid deposition by inhibiting hIAPP fibril formation, rather than degrading hIAPP.
4392 20400513 These findings suggest that targeting the role of neprilysin in IAPP fibril assembly, in addition to IAPP cleavage by other peptidases, may provide a novel approach to reduce and/or prevent islet amyloid deposition in type 2 diabetes.
4393 20404854 Islet amyloid polypeptide is a hormone synthesized in pancreatic beta cells and cosecreted with insulin.
4394 20404854 Circulating islet amyloid polypeptide binds to receptors located in the hindbrain and increases satiety, delays gastric emptying and suppresses glucagon secretion.
4395 20404854 Thus, islet amyloid polypeptide complements the effects of insulin.
4396 20404854 T1DM is a state of both islet amyloid polypeptide and insulin deficiency.
4397 20404854 Pramlintide, a synthetic analog of islet amyloid polypeptide, can replace this hormone in patients with T1DM.
4398 20404854 Agents that decrease intestinal carbohydrate digestion (alpha-glucosidase inhibitors) or decrease insulin resistance (metformin) might be alternative adjunctive therapies in T1DM, though its benefits are marginally supported by clinical data.
4399 20404854 Islet amyloid polypeptide is a hormone synthesized in pancreatic beta cells and cosecreted with insulin.
4400 20404854 Circulating islet amyloid polypeptide binds to receptors located in the hindbrain and increases satiety, delays gastric emptying and suppresses glucagon secretion.
4401 20404854 Thus, islet amyloid polypeptide complements the effects of insulin.
4402 20404854 T1DM is a state of both islet amyloid polypeptide and insulin deficiency.
4403 20404854 Pramlintide, a synthetic analog of islet amyloid polypeptide, can replace this hormone in patients with T1DM.
4404 20404854 Agents that decrease intestinal carbohydrate digestion (alpha-glucosidase inhibitors) or decrease insulin resistance (metformin) might be alternative adjunctive therapies in T1DM, though its benefits are marginally supported by clinical data.
4405 20404854 Islet amyloid polypeptide is a hormone synthesized in pancreatic beta cells and cosecreted with insulin.
4406 20404854 Circulating islet amyloid polypeptide binds to receptors located in the hindbrain and increases satiety, delays gastric emptying and suppresses glucagon secretion.
4407 20404854 Thus, islet amyloid polypeptide complements the effects of insulin.
4408 20404854 T1DM is a state of both islet amyloid polypeptide and insulin deficiency.
4409 20404854 Pramlintide, a synthetic analog of islet amyloid polypeptide, can replace this hormone in patients with T1DM.
4410 20404854 Agents that decrease intestinal carbohydrate digestion (alpha-glucosidase inhibitors) or decrease insulin resistance (metformin) might be alternative adjunctive therapies in T1DM, though its benefits are marginally supported by clinical data.
4411 20404854 Islet amyloid polypeptide is a hormone synthesized in pancreatic beta cells and cosecreted with insulin.
4412 20404854 Circulating islet amyloid polypeptide binds to receptors located in the hindbrain and increases satiety, delays gastric emptying and suppresses glucagon secretion.
4413 20404854 Thus, islet amyloid polypeptide complements the effects of insulin.
4414 20404854 T1DM is a state of both islet amyloid polypeptide and insulin deficiency.
4415 20404854 Pramlintide, a synthetic analog of islet amyloid polypeptide, can replace this hormone in patients with T1DM.
4416 20404854 Agents that decrease intestinal carbohydrate digestion (alpha-glucosidase inhibitors) or decrease insulin resistance (metformin) might be alternative adjunctive therapies in T1DM, though its benefits are marginally supported by clinical data.
4417 20404854 Islet amyloid polypeptide is a hormone synthesized in pancreatic beta cells and cosecreted with insulin.
4418 20404854 Circulating islet amyloid polypeptide binds to receptors located in the hindbrain and increases satiety, delays gastric emptying and suppresses glucagon secretion.
4419 20404854 Thus, islet amyloid polypeptide complements the effects of insulin.
4420 20404854 T1DM is a state of both islet amyloid polypeptide and insulin deficiency.
4421 20404854 Pramlintide, a synthetic analog of islet amyloid polypeptide, can replace this hormone in patients with T1DM.
4422 20404854 Agents that decrease intestinal carbohydrate digestion (alpha-glucosidase inhibitors) or decrease insulin resistance (metformin) might be alternative adjunctive therapies in T1DM, though its benefits are marginally supported by clinical data.
4423 20421886 The multiligand receptor of the immunoglobulin superfamily, receptor for advanced glycation endproducts (RAGE), is a signal transduction receptor that binds advanced glycation endproducts, certain members of the S100/calgranulin family of proteins, high mobility group box 1 (HMGB1), advanced oxidation protein products, and amyloid (beta-sheet fibrils).
4424 20429571 The human Islet amyloid polypeptide (hIAPP or amylin) is a 37-residue peptide hormone that is normally cosecreted with insulin by the pancreatic beta-cells.
4425 20452363 The sulfated triphenyl methane derivative acid fuchsin is a potent inhibitor of amyloid formation by human islet amyloid polypeptide and protects against the toxic effects of amyloid formation.
4426 20452363 Islet amyloid polypeptide (IAPP), also known as amylin, is responsible for amyloid formation in type 2 diabetes.
4427 20452363 The compound is less effective against the beta-amyloid peptide, indicating specificity in its ability to inhibit amyloid formation by IAPP.
4428 20452363 The sulfated triphenyl methane derivative acid fuchsin is a potent inhibitor of amyloid formation by human islet amyloid polypeptide and protects against the toxic effects of amyloid formation.
4429 20452363 Islet amyloid polypeptide (IAPP), also known as amylin, is responsible for amyloid formation in type 2 diabetes.
4430 20452363 The compound is less effective against the beta-amyloid peptide, indicating specificity in its ability to inhibit amyloid formation by IAPP.
4431 20452363 The sulfated triphenyl methane derivative acid fuchsin is a potent inhibitor of amyloid formation by human islet amyloid polypeptide and protects against the toxic effects of amyloid formation.
4432 20452363 Islet amyloid polypeptide (IAPP), also known as amylin, is responsible for amyloid formation in type 2 diabetes.
4433 20452363 The compound is less effective against the beta-amyloid peptide, indicating specificity in its ability to inhibit amyloid formation by IAPP.
4434 20467341 Up-regulated pancreatic tissue microRNA-375 associates with human type 2 diabetes through beta-cell deficit and islet amyloid deposition.
4435 20471471 In this study, we proposed that amyloid precursor protein (APP) expression was regulated by AGEs.
4436 20472067 We describe our 2D IR spectrometer, as well as protocols for (13)C(18)O isotope labeling, and then illustrate the technique with an application to the aggregation of the human islet amyloid polypeptide implicated in type 2 diabetes.
4437 20487079 Glycemia and levels of cerebrospinal fluid amyloid and tau in patients attending a memory clinic.
4438 20494101 Studies of the nonpolar, transmembrane surfactant protein C (SP-C) have revealed amino acid sequence features that determine its amyloid fibril formation, features that are also found in the amyloid beta-peptide in Alzheimer's disease and the prion protein.
4439 20495767 Human islet amyloid polypeptide fibril binding to catalase: a transmission electron microscopy and microplate study.
4440 20495767 The diabetes-associated human islet amyloid polypeptide (IAPP) is a 37-amino-acid peptide that forms fibrils in vitro and in vivo.
4441 20495767 Human IAPP fibrils are toxic in a similar manner to Alzheimer's amyloid-beta (A-beta) and prion protein (PrP) fibrils.
4442 20495767 Previous studies have shown that catalase binds to A-beta fibrils and appears to recognize a region containing the Gly-Ala-Ile-Ile sequence that is similar to the Gly-Ala-Ile-Leu sequence found in human IAPP residues 24-27.
4443 20495767 These results suggest that catalase recognizes a Gly-Ala-Ile-Leu-like sequence in amyloid fibril-forming peptides.
4444 20495767 The ability of catalase to bind IAPP, A-beta, and PrP fibrils demonstrates the presence of similar accessible structural motifs that may be targets for antiamyloid therapeutic development.
4445 20495767 Human islet amyloid polypeptide fibril binding to catalase: a transmission electron microscopy and microplate study.
4446 20495767 The diabetes-associated human islet amyloid polypeptide (IAPP) is a 37-amino-acid peptide that forms fibrils in vitro and in vivo.
4447 20495767 Human IAPP fibrils are toxic in a similar manner to Alzheimer's amyloid-beta (A-beta) and prion protein (PrP) fibrils.
4448 20495767 Previous studies have shown that catalase binds to A-beta fibrils and appears to recognize a region containing the Gly-Ala-Ile-Ile sequence that is similar to the Gly-Ala-Ile-Leu sequence found in human IAPP residues 24-27.
4449 20495767 These results suggest that catalase recognizes a Gly-Ala-Ile-Leu-like sequence in amyloid fibril-forming peptides.
4450 20495767 The ability of catalase to bind IAPP, A-beta, and PrP fibrils demonstrates the presence of similar accessible structural motifs that may be targets for antiamyloid therapeutic development.
4451 20495767 Human islet amyloid polypeptide fibril binding to catalase: a transmission electron microscopy and microplate study.
4452 20495767 The diabetes-associated human islet amyloid polypeptide (IAPP) is a 37-amino-acid peptide that forms fibrils in vitro and in vivo.
4453 20495767 Human IAPP fibrils are toxic in a similar manner to Alzheimer's amyloid-beta (A-beta) and prion protein (PrP) fibrils.
4454 20495767 Previous studies have shown that catalase binds to A-beta fibrils and appears to recognize a region containing the Gly-Ala-Ile-Ile sequence that is similar to the Gly-Ala-Ile-Leu sequence found in human IAPP residues 24-27.
4455 20495767 These results suggest that catalase recognizes a Gly-Ala-Ile-Leu-like sequence in amyloid fibril-forming peptides.
4456 20495767 The ability of catalase to bind IAPP, A-beta, and PrP fibrils demonstrates the presence of similar accessible structural motifs that may be targets for antiamyloid therapeutic development.
4457 20509034 Amylin is the major constituent of pancreatic islet amyloid whose accumulation characterizes patients with type 2 diabetes mellitus (T2DM).
4458 20570648 The N-terminal fragment of human islet amyloid polypeptide is non-fibrillogenic in the presence of membranes and does not cause leakage of bilayers of physiologically relevant lipid composition.
4459 20570648 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus (DM2).
4460 20570648 The N-terminal fragment of human islet amyloid polypeptide is non-fibrillogenic in the presence of membranes and does not cause leakage of bilayers of physiologically relevant lipid composition.
4461 20570648 Human islet amyloid polypeptide (hIAPP) forms amyloid fibrils in pancreatic islets of patients with type 2 diabetes mellitus (DM2).
4462 20585346 This Review addresses the physiological roles of peptide YY, pancreatic polypeptide, islet amyloid polypeptide, glucagon-like peptide 1, glucagon, oxyntomodulin, cholecystokinin and ghrelin and discusses their potential as targets for the development of novel treatments for obesity.
4463 20604554 Recent studies have implicated non-fibrillar oligomers of the amyloid beta (Abeta) peptide as the primary toxic species in Alzheimer's disease.
4464 20619299 Beta-cell selective K(ATP)-channel activation protects beta-cells and human islets from human islet amyloid polypeptide induced toxicity.
4465 20632994 Insulin, a 51-residue peptide hormone, is an intrinsically amyloidogenic peptide, forming amyloid fibrils in vitro.
4466 20649634 Exendin-4 protects pancreatic beta cells from human islet amyloid polypeptide-induced cell damage: potential involvement of AKT and mitochondria biogenesis.
4467 20674218 The distinct effect of T2DM induction on the pattern of rat serum includes the down-regulation of Apolipoprotein E, Apolipoprotein A-I, Ig gamma-2A chain C region, and up-regulation of Transthyretin (TTR), Haptoglobin (Hp), Serum amyloid P-componen (SAP), Prothrombin.
4468 20684641 pH-Dependent interactions of human islet amyloid polypeptide segments with insulin studied by replica exchange molecular dynamics simulations.
4469 20684641 Amyloidogenesis of human islet amyloid polypeptide (hIAPP) within or surrounding secretory beta-cells of pancreas has long been related to the pathology of type II diabetes.
4470 20684641 Insulin, coexpressed and cosecreted with hIAPP in vivo, has the capacity of interacting with hIAPP and further inhibiting the amyloid deposition of the peptide.
4471 20684641 pH-Dependent interactions of human islet amyloid polypeptide segments with insulin studied by replica exchange molecular dynamics simulations.
4472 20684641 Amyloidogenesis of human islet amyloid polypeptide (hIAPP) within or surrounding secretory beta-cells of pancreas has long been related to the pathology of type II diabetes.
4473 20684641 Insulin, coexpressed and cosecreted with hIAPP in vivo, has the capacity of interacting with hIAPP and further inhibiting the amyloid deposition of the peptide.
4474 20684641 pH-Dependent interactions of human islet amyloid polypeptide segments with insulin studied by replica exchange molecular dynamics simulations.
4475 20684641 Amyloidogenesis of human islet amyloid polypeptide (hIAPP) within or surrounding secretory beta-cells of pancreas has long been related to the pathology of type II diabetes.
4476 20684641 Insulin, coexpressed and cosecreted with hIAPP in vivo, has the capacity of interacting with hIAPP and further inhibiting the amyloid deposition of the peptide.
4477 20685871 Inhaled insulin forms toxic pulmonary amyloid aggregates.
4478 20685871 Our studies were designed to investigate the harmful potential that inhaled insulin has in pulmonary tissue in vivo, through an amyloid formation mechanism.
4479 20685871 Our data demonstrate that inhaled insulin rapidly forms amyloid in the lungs causing a significant reduction in pulmonary air flow.
4480 20685871 These insulin deposits resemble the amyloid structures implicated in protein misfolding disorders, such as Alzheimer's and Parkinson's diseases, and could as well be deleterious in nature.
4481 20685871 Inhaled insulin forms toxic pulmonary amyloid aggregates.
4482 20685871 Our studies were designed to investigate the harmful potential that inhaled insulin has in pulmonary tissue in vivo, through an amyloid formation mechanism.
4483 20685871 Our data demonstrate that inhaled insulin rapidly forms amyloid in the lungs causing a significant reduction in pulmonary air flow.
4484 20685871 These insulin deposits resemble the amyloid structures implicated in protein misfolding disorders, such as Alzheimer's and Parkinson's diseases, and could as well be deleterious in nature.
4485 20685871 Inhaled insulin forms toxic pulmonary amyloid aggregates.
4486 20685871 Our studies were designed to investigate the harmful potential that inhaled insulin has in pulmonary tissue in vivo, through an amyloid formation mechanism.
4487 20685871 Our data demonstrate that inhaled insulin rapidly forms amyloid in the lungs causing a significant reduction in pulmonary air flow.
4488 20685871 These insulin deposits resemble the amyloid structures implicated in protein misfolding disorders, such as Alzheimer's and Parkinson's diseases, and could as well be deleterious in nature.
4489 20685871 Inhaled insulin forms toxic pulmonary amyloid aggregates.
4490 20685871 Our studies were designed to investigate the harmful potential that inhaled insulin has in pulmonary tissue in vivo, through an amyloid formation mechanism.
4491 20685871 Our data demonstrate that inhaled insulin rapidly forms amyloid in the lungs causing a significant reduction in pulmonary air flow.
4492 20685871 These insulin deposits resemble the amyloid structures implicated in protein misfolding disorders, such as Alzheimer's and Parkinson's diseases, and could as well be deleterious in nature.
4493 20699477 Because inappropriate gamma-secretase processing of amyloid precursor protein (APP) in humans is associated with familial Alzheimer's disease, understanding essential elements within each gamma-secretase component is crucial to functional studies.
4494 20730162 Copper-induced cytotoxicity: reactive oxygen species or islet amyloid polypeptide oligomer formation.
4495 20730162 Copper enhances amyloid cytotoxicity and mediates human islet amyloid polypeptide (hIAPP) oligomerization; nickel, a redox inactive metal with similar protein binding affinity to copper, also mimics this effect, thereby demonstrating copper-mediated hIAPP cytotoxicity is due mainly to granular oligomer generation rather than ROS accumulation in type 2 diabetes.
4496 20730162 Copper-induced cytotoxicity: reactive oxygen species or islet amyloid polypeptide oligomer formation.
4497 20730162 Copper enhances amyloid cytotoxicity and mediates human islet amyloid polypeptide (hIAPP) oligomerization; nickel, a redox inactive metal with similar protein binding affinity to copper, also mimics this effect, thereby demonstrating copper-mediated hIAPP cytotoxicity is due mainly to granular oligomer generation rather than ROS accumulation in type 2 diabetes.
4498 20809197 The role of aromatic side-chains in amyloid growth and membrane interaction of the islet amyloid polypeptide fragment LANFLVH.
4499 20809197 Human islet amyloid polypeptide (hIAPP) is known to misfold and aggregate into amyloid deposits that may be found in pancreatic tissues of patients affected by type 2 diabetes.
4500 20809197 The role of aromatic side-chains in amyloid growth and membrane interaction of the islet amyloid polypeptide fragment LANFLVH.
4501 20809197 Human islet amyloid polypeptide (hIAPP) is known to misfold and aggregate into amyloid deposits that may be found in pancreatic tissues of patients affected by type 2 diabetes.
4502 20835230 Activation of the NLRP3 inflammasome by islet amyloid polypeptide provides a mechanism for enhanced IL-1β in type 2 diabetes.
4503 20835230 Interleukin 1β (IL-1β) is an important inflammatory mediator of type 2 diabetes.
4504 20835230 Here we show that oligomers of islet amyloid polypeptide (IAPP), a protein that forms amyloid deposits in the pancreas during type 2 diabetes, triggered the NLRP3 inflammasome and generated mature IL-1β.
4505 20835230 Finally, mice transgenic for human IAPP had more IL-1β in pancreatic islets, which localized together with amyloid and macrophages.
4506 20835230 Activation of the NLRP3 inflammasome by islet amyloid polypeptide provides a mechanism for enhanced IL-1β in type 2 diabetes.
4507 20835230 Interleukin 1β (IL-1β) is an important inflammatory mediator of type 2 diabetes.
4508 20835230 Here we show that oligomers of islet amyloid polypeptide (IAPP), a protein that forms amyloid deposits in the pancreas during type 2 diabetes, triggered the NLRP3 inflammasome and generated mature IL-1β.
4509 20835230 Finally, mice transgenic for human IAPP had more IL-1β in pancreatic islets, which localized together with amyloid and macrophages.
4510 20835230 Activation of the NLRP3 inflammasome by islet amyloid polypeptide provides a mechanism for enhanced IL-1β in type 2 diabetes.
4511 20835230 Interleukin 1β (IL-1β) is an important inflammatory mediator of type 2 diabetes.
4512 20835230 Here we show that oligomers of islet amyloid polypeptide (IAPP), a protein that forms amyloid deposits in the pancreas during type 2 diabetes, triggered the NLRP3 inflammasome and generated mature IL-1β.
4513 20835230 Finally, mice transgenic for human IAPP had more IL-1β in pancreatic islets, which localized together with amyloid and macrophages.
4514 20856987 Cyclen-hybrid compound captures copper to protect INS-1 cells from islet amyloid polypeptide cytotoxicity by inhibiting and lysing effects.
4515 20856987 Human islet amyloid polypeptide (hIAPP) deposit is the hallmark of type 2 diabetes pathology.
4516 20856987 Cyclen-hybrid compound captures copper to protect INS-1 cells from islet amyloid polypeptide cytotoxicity by inhibiting and lysing effects.
4517 20856987 Human islet amyloid polypeptide (hIAPP) deposit is the hallmark of type 2 diabetes pathology.
4518 20873820 The approach is validated using inhibitors of amyloid formation by islet amyloid polypeptide, the causative agent of amyloid formation in type 2 diabetes and the Alzheimer's disease Aβ peptide.
4519 20930481 Phosphatidylserine and phosphatidylglycerol were also reported to trigger fibril formation by human islet amyloid polypeptide (hIAPP).
4520 20943756 In type 2 diabetes, amyloid deposition within the pancreatic islets is a pathophysiological hallmark, making crucial the study in the pancreas of BACE1 and its homologous BACE2 to understand the pathological mechanisms of this disease.
4521 20943756 Intracellular analysis using immunofluorescence showed colocalization of BACE1 with insulin and BACE2 with clathrin-coated vesicles of the plasma membrane in MIN6 cells.
4522 20943756 When BACE1 and -2 were pharmacologically inhibited, BACE1 localization was not altered, whereas BACE2 content in clathrin-coated vesicles was increased.
4523 21035753 A recent report in Nature Immunology (Masters et al., 2010) identifies amyloid polypeptide as an additional enhancer of IL-1β production.
4524 21067307 The effect of curcumin on human islet amyloid polypeptide misfolding and toxicity.
4525 21067307 Type 2 diabetes involves aberrant misfolding of human islet amyloid polypeptide (h-IAPP) and resultant pancreatic amyloid deposits.
4526 21067307 The effect of curcumin on human islet amyloid polypeptide misfolding and toxicity.
4527 21067307 Type 2 diabetes involves aberrant misfolding of human islet amyloid polypeptide (h-IAPP) and resultant pancreatic amyloid deposits.
4528 21124955 The region at 11p15.5-p13 (rs4150642; p = 3.20×10(-111)) contains serum amyloid A1 (SAA1) and the adjacent general transcription factor 2 H1 (GTF2H1), Hermansky-Pudlak Syndrome 5 (HPS5), lactate dehydrogenase A (LDHA), and lactate dehydrogenase C (LDHC).
4529 21148563 The molecular basis of distinct aggregation pathways of islet amyloid polypeptide.
4530 21148563 Abnormal aggregation of islet amyloid polypeptide (IAPP) into amyloid fibrils is a hallmark of type 2 diabetes.
4531 21148563 The molecular basis of distinct aggregation pathways of islet amyloid polypeptide.
4532 21148563 Abnormal aggregation of islet amyloid polypeptide (IAPP) into amyloid fibrils is a hallmark of type 2 diabetes.
4533 21150342 Transmission electron microscopy can be used to evaluate these tissues from young rodent models of insulin resistance and T2DM, including the transgenic Ren2 rat, db/db obese insulin resistant - T2DM mouse, and human islet amyloid polypeptide (HIP) rat model of T2DM.
4534 21158384 Structural polymorphism of human islet amyloid polypeptide (hIAPP) oligomers highlights the importance of interfacial residue interactions.
4535 21158384 A 37-residue of human islet amyloid polypeptide (hIAPP or amylin) is a main component of amyloid plaques found in the pancreas of ∼90% of type II diabetes patients.
4536 21158384 Structural polymorphism of human islet amyloid polypeptide (hIAPP) oligomers highlights the importance of interfacial residue interactions.
4537 21158384 A 37-residue of human islet amyloid polypeptide (hIAPP or amylin) is a main component of amyloid plaques found in the pancreas of ∼90% of type II diabetes patients.
4538 21163363 Involvement of mitochondrial dysfunction in human islet amyloid polypeptide-induced apoptosis in INS-1E pancreatic beta cells: An effect attenuated by phycocyanin.
4539 21163363 Misfolded human islet amyloid polypeptide (hIAPP) in pancreatic islets is associated with the loss of insulin-secreting beta cells in type 2 diabetes.
4540 21163363 Further molecular analysis showed that hIAPP induced changes in the expression of Bcl-2 family members, release of cytochrome c and apoptosis-inducing factor (AIF) from mitochondria into cytosol, activation of caspases and cleavage of poly (ADP-ribose) polymerase.
4541 21163363 Involvement of mitochondrial dysfunction in human islet amyloid polypeptide-induced apoptosis in INS-1E pancreatic beta cells: An effect attenuated by phycocyanin.
4542 21163363 Misfolded human islet amyloid polypeptide (hIAPP) in pancreatic islets is associated with the loss of insulin-secreting beta cells in type 2 diabetes.
4543 21163363 Further molecular analysis showed that hIAPP induced changes in the expression of Bcl-2 family members, release of cytochrome c and apoptosis-inducing factor (AIF) from mitochondria into cytosol, activation of caspases and cleavage of poly (ADP-ribose) polymerase.
4544 21170561 The catalyst candidates were tested for their activity to cleave the soluble oligomers of amyloidogenic peptides amyloid β-42 and human islet amyloid polypeptide (h-IAPP), which are believed to be the pathogenic species for Alzheimer's disease and type 2 diabetes mellitus, respectively.
4545 21175596 Serum amyloid A (SAA) levels are elevated highly in acute phase response and elevated slightly and persistently in chronic diseases such as rheumatoid arthritis and diabetes.
4546 21175596 In addition, the expression of p47-phox was up-regulated by SAA (P < 0·001) and diphenyliodonium (DPI), a nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor, reduced the release of O(2) (-) by 50%.
4547 21195086 Inhibition of glycosaminoglycan-mediated amyloid formation by islet amyloid polypeptide and proIAPP processing intermediates.
4548 21195086 Islet amyloid polypeptide (IAPP; also known as amylin) is responsible for islet amyloid formation in type 2 diabetes, and IAPP-induced toxicity is believed to contribute to the loss of β-cell mass associated with the late stages of type 2 diabetes.
4549 21195086 IAPP is produced as a prohormone, pro-islet amyloid polypeptide (proIAPP), and processed in the secretory granules of the pancreatic β-cells.
4550 21195086 Inhibition of glycosaminoglycan-mediated amyloid formation by islet amyloid polypeptide and proIAPP processing intermediates.
4551 21195086 Islet amyloid polypeptide (IAPP; also known as amylin) is responsible for islet amyloid formation in type 2 diabetes, and IAPP-induced toxicity is believed to contribute to the loss of β-cell mass associated with the late stages of type 2 diabetes.
4552 21195086 IAPP is produced as a prohormone, pro-islet amyloid polypeptide (proIAPP), and processed in the secretory granules of the pancreatic β-cells.
4553 21195086 Inhibition of glycosaminoglycan-mediated amyloid formation by islet amyloid polypeptide and proIAPP processing intermediates.
4554 21195086 Islet amyloid polypeptide (IAPP; also known as amylin) is responsible for islet amyloid formation in type 2 diabetes, and IAPP-induced toxicity is believed to contribute to the loss of β-cell mass associated with the late stages of type 2 diabetes.
4555 21195086 IAPP is produced as a prohormone, pro-islet amyloid polypeptide (proIAPP), and processed in the secretory granules of the pancreatic β-cells.
4556 21215287 A mechanistic approach for islet amyloid polypeptide aggregation to develop anti-amyloidogenic agents for type-2 diabetes.
4557 21215287 Type-2 diabetes mellitus (DM-2) is a conformational disease involving intrinsically disordered islet amyloid polypeptide (IAPP), in which a structural transition from physiological polypeptide to pathological deposits takes place.
4558 21215287 A mechanistic approach for islet amyloid polypeptide aggregation to develop anti-amyloidogenic agents for type-2 diabetes.
4559 21215287 Type-2 diabetes mellitus (DM-2) is a conformational disease involving intrinsically disordered islet amyloid polypeptide (IAPP), in which a structural transition from physiological polypeptide to pathological deposits takes place.
4560 21218505 Islet amyloid polypeptide acts on glucose- stimulated beta cells to reduce voltage-gated calcium channel activation, intracellular Ca(2+) concentration, and insulin secretion.
4561 21239459 To see whether molecules associated with acute phase protein, LPS signaling, and persistent recruitment of monocytes, are produced at higher amounts in adipocytes co-cultured with macrophages stimulated with low concentration of LPS (1 ng/ml), we measured serum amyloid A (SAA), LPS binding protein (LBP), soluble CD14 (sCD14), and RANTES levels in culture supernatant of co-cultures.
4562 21239459 Investigated molecules, especially LBP, SAA, and RANTES were produced at higher amounts in co-cultures stimulated with LPS compared with the cells without LPS.
4563 21239459 The ob/ob, and high-fat diet-induced obesity mice produced higher amounts of LBP, SAA, and RANTES one day after LPS infusion (1 ng/ml/g body weight) compared with ob/- and normal-fat fed control mice.
4564 21251764 Milk signalling down-regulates the key transcription factor FoxO1 leading to up-regulation of insulin promoter factor-1 which stimulates β-cell proliferation, insulin secretion as well as coexpression of islet amyloid polypeptide (IAPP).
4565 21266844 These amyloid deposits comprise predominantly of fibrillar aggregates of the 37-amino acid human amylin (hA) monomer, also known as islet amyloid polypeptide (IAPP), which is co-secreted with insulin from pancreatic islet β-cells via the regulated secretory pathway. hA has a propensity to aggregate in vitro into fibrillar structures through the self-association of monomers that is largely mediated by an amyloidogenic region spanning amino acids 20-29 (reviewed in ref. 8).
4566 21281583 Biphasic effects of insulin on islet amyloid polypeptide membrane disruption.
4567 21281583 Type II diabetes, in its late stages, is often associated with the formation of extracellular islet amyloid deposits composed of islet amyloid polypeptide (IAPP or amylin).
4568 21281583 Biphasic effects of insulin on islet amyloid polypeptide membrane disruption.
4569 21281583 Type II diabetes, in its late stages, is often associated with the formation of extracellular islet amyloid deposits composed of islet amyloid polypeptide (IAPP or amylin).
4570 21281586 The amyloid precursor protein (APP) is subject to proteolytic processing by γ-secretase within neuronal membranes, leading to Alzheimer's disease-associated β-amyloid peptide production by cleavage near the midpoint of the single transmembrane (TM) segment of APP.
4571 21281635 It has been shown that the expression of 3R tau is modulated by peptide amyloid β (Aβ) and that 3R tau levels increase with the progression of AD.
4572 21298325 Anti-inflammatory effect of insulin in the human hepatoma cell line HepG2 involves decreased transcription of IL-6 target genes and nuclear exclusion of FOXO1.
4573 21298325 The liver is an important target for interleukin-6 (IL-6) action leading to an increased inflammatory response with impaired insulin signaling and action.
4574 21298325 The aims of this study are to address if insulin is anti-inflammatory and attenuates IL-6-induced inflammation in the human hepatoma cell line HepG2 and if this involves signal transducer and activator of transcription 3 (STAT3) signal transduction.
4575 21298325 It was found that insulin significantly reduced IL-6-induced gene transcription of serum amyloid 1 (SAA1), serum amyloid 2 (SAA2), haptoglobin, orosomucoid, and plasmin activator inhibitor-1 (PAI-1).
4576 21298325 However, the authors did not find any evidence that insulin inhibited IL-6 signal transduction, i.e., no effect of insulin was detected on STAT3 phosphorylation or its translocation to cell nucleus.
4577 21298325 Taken together, these results suggest that the anti-inflammatory effect of insulin on IL-6 action is exerted at the level of the transcriptional activation of the genes.
4578 21298325 Further analysis revealed that insulin regulates nuclear localization of FOXO1, which is an important co-activator for STAT3 mediated transcription.
4579 21298325 Insulin induced nuclear exit and Thr24 phosphorylation of FOXO1, thus, inhibiting STAT3-mediated transcription.
4580 21332024 Subcutaneous adipose tissue biopsies were taken after 8 weeks treatment to analyze gene expression, glucose uptake capacity, insulin-signaling, and adipocyte size.
4581 21332024 Adipose tissue gene expression of serum amyloid A (SAA) was higher after hydrochlorothiazide treatment compared to candesartan (p=0.036), and this was in accordance with our previous finding on circulating SAA levels.
4582 21347704 RAGE is a pattern recognition receptor that binds to multiple ligands, including amphoterin, members of the S100/calgranulin family, the integrin Mac-1, and amyloid β-peptide (Aβ).
4583 21352095 Possible pathophysiologic mechanisms common to both T2DM and AD are glucose toxicity and a direct effect of insulin on amyloid metabolism.
4584 21352095 In fact, AD and T2DM have comparable pathological features in the islet and brain (amyloid derived from amyloid β protein (β-amyloid) in the brain in AD and islet amyloid derived from islet amyloid polypeptide in the pancreas in T2DM).
4585 21352095 Possible pathophysiologic mechanisms common to both T2DM and AD are glucose toxicity and a direct effect of insulin on amyloid metabolism.
4586 21352095 In fact, AD and T2DM have comparable pathological features in the islet and brain (amyloid derived from amyloid β protein (β-amyloid) in the brain in AD and islet amyloid derived from islet amyloid polypeptide in the pancreas in T2DM).
4587 21404645 [Amyloid fibril formation of islet amyloid polypeptide in the presence of lipid membrane and membrane disruption].
4588 21428404 Heterogeneous triangular structures of human islet amyloid polypeptide (amylin) with internal hydrophobic cavity and external wrapping morphology reveal the polymorphic nature of amyloid fibrils.
4589 21428404 The misfolding and self-assembly of human islet amyloid polypeptide (hIAPP or amylin) into amyloid fibrils is pathologically linked to type II diabetes.
4590 21428404 Heterogeneous triangular structures of human islet amyloid polypeptide (amylin) with internal hydrophobic cavity and external wrapping morphology reveal the polymorphic nature of amyloid fibrils.
4591 21428404 The misfolding and self-assembly of human islet amyloid polypeptide (hIAPP or amylin) into amyloid fibrils is pathologically linked to type II diabetes.
4592 21448434 Redox regulation of insulin degradation by insulin-degrading enzyme.
4593 21448434 Insulin-degrading enzyme (IDE) is a thiol sensitive peptidase that degrades insulin and amyloid β, and has been linked to type 2 diabetes mellitus and Alzheimer's disease.
4594 21448434 Reduced glutathione had no effect on IDE, but reacted with partially degraded insulin to disrupt its disulfide bonds and accelerate its breakdown to trichloroacetic acid soluble fragments.
4595 21448434 Our results demonstrate the sensitivity of insulin degradation by IDE to the redox environment and suggest another mechanism by which the cell's oxidation state may contribute to the development of, and the link between, type 2 diabetes and Alzheimer's disease.
4596 21452073 FUS/TLS forms cytoplasmic aggregates, inhibits cell growth and interacts with TDP-43 in a yeast model of amyotrophic lateral sclerosis.
4597 21452073 Both wild-type and mutant forms of the RNA-binding proteins FUS and TDP-43 accumulate in cytoplasmic inclusions in the neurons of ALS patients.
4598 21452073 We find that FUS and TDP-43 have a high propensity for co-aggregation, unlike the aggregation patterns of several other aggregation-prone proteins.
4599 21452073 Moreover, the biophysical properties of FUS aggregates in yeast are distinctly different from many amyloidogenic proteins, suggesting they are not composed of amyloid.
4600 21452804 Influence of hydrophobicity on the surface-catalyzed assembly of the islet amyloid polypeptide.
4601 21452804 The islet amyloid polypeptide (IAPP) is a hormonal factor secreted by the β-cells in the pancreas.
4602 21452804 Influence of hydrophobicity on the surface-catalyzed assembly of the islet amyloid polypeptide.
4603 21452804 The islet amyloid polypeptide (IAPP) is a hormonal factor secreted by the β-cells in the pancreas.
4604 21484213 Exendin-4 increases islet amyloid deposition but offsets the resultant beta cell toxicity in human islet amyloid polypeptide transgenic mouse islets.
4605 21502851 Relation between insulin, insulin-related factors, and plasma amyloid beta peptide levels at midlife in a population-based study.
4606 21516511 AD pathology is driven by genetic factors related not to aging per se, but instead to the amyloid precursor protein (APP).
4607 21517093 The amyloid formation mechanism in human IAPP: dimers have β-strand monomer-monomer interfaces.
4608 21519521 Exogenous application of streptozotocin, which disrupts systemic insulin secretion, results in insulin deficiency, increased tau phosphorylation, and cognitive impairments that can be reversed by exogenous insulin supplementation.
4609 21519521 The symptoms of this AD pathology included increased tau phosphorylation at multiple sites, increased tau cleavage, and greater neuronal and synaptic damage, even with increased amyloid β protein production.
4610 21523678 Important inflammatory mediators, which take part in pathogenesis of ACS, are acute phase proteins such as: C-reactive protein, adhesion molecules VCAM-1, ICAM-1, selectins, plasma amyloid A, metalloproteinases, interleukins-1 and -6, tumour necrosis factor-a and vascular endothelial growth factor.
4611 21534603 Using these chiral vibrational signatures, we studied the aggregation of human islet amyloid polypeptide (hIAPP), which is implicated in type II diabetes.
4612 21537460 The islet amyloid polypeptide has been associated with β-cell apoptosis.
4613 21543720 In both of these diseases, a protein complex known as the inflammasome is stimulated to activate interleukin-1β (IL-1β) and IL-18, which are pathogenic inflammatory cytokines.
4614 21543720 Triggers for the inflammasome are obesity-related factors, such as cholesterol crystals in atherosclerosis, or hyperglycemia, ceramides, and islet amyloid polypeptide in type 2 diabetes.
4615 21566116 Hexafluoroisopropanol induces amyloid fibrils of islet amyloid polypeptide by enhancing both hydrophobic and electrostatic interactions.
4616 21566116 We studied the formation of fibrils of human islet amyloid polypeptide associated with type II diabetes in the presence of various concentrations of 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) under acidic and neutral pH conditions using CD, amyloid-specific thioflavin T fluorescence, fluorescence imaging with thioflavin T, and atomic force microscopy.
4617 21566116 Hexafluoroisopropanol induces amyloid fibrils of islet amyloid polypeptide by enhancing both hydrophobic and electrostatic interactions.
4618 21566116 We studied the formation of fibrils of human islet amyloid polypeptide associated with type II diabetes in the presence of various concentrations of 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) under acidic and neutral pH conditions using CD, amyloid-specific thioflavin T fluorescence, fluorescence imaging with thioflavin T, and atomic force microscopy.
4619 21571086 Prion protein (Prion diseases), amyloid-beta (Alzheimer's disease), alpha-synuclein (Parkinson's disease), Huntingtin (Huntington's disease), serum amyloid A (AA amyloidosis) and islet amyloid polypeptide (type 2 diabetes) are some of the proteins that trigger disease when they get misfolded.
4620 21630409 Alzheimer's disease (AD) and type 2 diabetes (T2D) are linked to the self-association of β-amyloid peptide (Aβ) and islet amyloid polypeptide (IAPP), respectively.
4621 21633185 Islet amyloid polypeptide in pancreatic islets from type 1 diabetic subjects.
4622 21695120 Drosophila melanogaster as a model system for studies of islet amyloid polypeptide aggregation.
4623 21704966 Intraocular expression of serum amyloid a and interleukin-6 in proliferative diabetic retinopathy.
4624 21734016 Islet amyloid polypeptide is a target antigen for diabetogenic CD4+ T cells.
4625 21738623 The expression of the receptor for advanced glycation end products (RAGE), serum amyloid A and serum C-reactive protein, markers of protein oxidation, glycation and inflammation, were also increased in diabetic Akita mice and reduced by fisetin.
4626 21742788 Islet amyloid polypeptide, islet amyloid, and diabetes mellitus.
4627 21742788 Islet amyloid polypeptide (IAPP, or amylin) is one of the major secretory products of β-cells of the pancreatic islets of Langerhans.
4628 21742788 Islet amyloid polypeptide, islet amyloid, and diabetes mellitus.
4629 21742788 Islet amyloid polypeptide (IAPP, or amylin) is one of the major secretory products of β-cells of the pancreatic islets of Langerhans.
4630 21808014 We find little difference in ATPase, protein refolding, and amyloid inhibiting activities of purified Ssa1p and Ssa2p, but show that interchanging NBD residue alanine 83 (Ssa1p) and glycine 83 (Ssa2p) switched functions of Ssa1p and Ssa2p in [URE3] propagation and FBPase degradation.
4631 21813778 IL-1 blockade attenuates islet amyloid polypeptide-induced proinflammatory cytokine release and pancreatic islet graft dysfunction.
4632 21813778 We sought to determine whether human islet amyloid polypeptide (hIAPP), the main component of islet amyloid, might contribute to islet inflammation by recruiting and activating macrophages.
4633 21813778 Early aggregates of hIAPP, but not nonamyloidogenic rodent islet amyloid polypeptide, caused release of CCL2 and CXCL1 by islets and induced secretion of TNF-α, IL-1α, IL-1β, CCL2, CCL3, CXCL1, CXCL2, and CXCL10 by C57BL/6 bone marrow-derived macrophages. hIAPP-induced TNF-α secretion was markedly diminished in MyD88-, but not TLR2- or TLR4-deficient macrophages, and in cells treated with the IL-1R antagonist (IL-1Ra) anakinra.
4634 21813778 Our results suggest that hIAPP-induced islet chemokine secretion promotes macrophage recruitment and that IL-1R/MyD88, but not TLR2 or TLR4 signaling is required for maximal macrophage responsiveness to prefibrillar hIAPP.
4635 21813778 IL-1 blockade attenuates islet amyloid polypeptide-induced proinflammatory cytokine release and pancreatic islet graft dysfunction.
4636 21813778 We sought to determine whether human islet amyloid polypeptide (hIAPP), the main component of islet amyloid, might contribute to islet inflammation by recruiting and activating macrophages.
4637 21813778 Early aggregates of hIAPP, but not nonamyloidogenic rodent islet amyloid polypeptide, caused release of CCL2 and CXCL1 by islets and induced secretion of TNF-α, IL-1α, IL-1β, CCL2, CCL3, CXCL1, CXCL2, and CXCL10 by C57BL/6 bone marrow-derived macrophages. hIAPP-induced TNF-α secretion was markedly diminished in MyD88-, but not TLR2- or TLR4-deficient macrophages, and in cells treated with the IL-1R antagonist (IL-1Ra) anakinra.
4638 21813778 Our results suggest that hIAPP-induced islet chemokine secretion promotes macrophage recruitment and that IL-1R/MyD88, but not TLR2 or TLR4 signaling is required for maximal macrophage responsiveness to prefibrillar hIAPP.
4639 21813778 IL-1 blockade attenuates islet amyloid polypeptide-induced proinflammatory cytokine release and pancreatic islet graft dysfunction.
4640 21813778 We sought to determine whether human islet amyloid polypeptide (hIAPP), the main component of islet amyloid, might contribute to islet inflammation by recruiting and activating macrophages.
4641 21813778 Early aggregates of hIAPP, but not nonamyloidogenic rodent islet amyloid polypeptide, caused release of CCL2 and CXCL1 by islets and induced secretion of TNF-α, IL-1α, IL-1β, CCL2, CCL3, CXCL1, CXCL2, and CXCL10 by C57BL/6 bone marrow-derived macrophages. hIAPP-induced TNF-α secretion was markedly diminished in MyD88-, but not TLR2- or TLR4-deficient macrophages, and in cells treated with the IL-1R antagonist (IL-1Ra) anakinra.
4642 21813778 Our results suggest that hIAPP-induced islet chemokine secretion promotes macrophage recruitment and that IL-1R/MyD88, but not TLR2 or TLR4 signaling is required for maximal macrophage responsiveness to prefibrillar hIAPP.
4643 21818468 This tutorial review presents descriptions of two amyloidogenic proteins, amyloid-β (Aβ) peptides and islet amyloid polypeptide (IAPP), whose misfolding propensities are implicated in Alzheimer's disease (AD) and type II diabetes, respectively.
4644 21822534 Pen-2 is a key regulator of the γ-secretase complex, which is involved in the production of the amyloid β (Aβ)-42 peptides, which ultimately lead to Alzheimer's disease (AD).
4645 21822534 NSE/hPen-2 Tg mice were produced by the microinjection of the NSE/hPen-2 gene into the pronucleus of fertilized eggs.
4646 21822534 The expression of the hPen-2 gene under the control of the NSE promoter was successfully detected only in the brain and kidney tissue of NSE/hPen-2 Tg mice.
4647 21822534 Also, 12-month-old NSE/hPen-2 Tg mice displayed behavioral dysfunction in the water maze test, motor activity and feeding behavior dysfunction in food intake/water intake/motor activity monitoring system.
4648 21822534 Furthermore, NSE/hPen-2 Tg mice exhibiting feeding behavior dysfunction were significantly more apt to display symptoms related to diabetes and obesity.
4649 21822534 These results suggest that Pen-2 overexpression in NSE/hPen-2 Tg mice may induce all the AD-like phenotypes, including behavioral deficits, motor activity and feeding behavior dysfunction, Aβ-42 peptide deposition and chronic disease induction.
4650 21907142 Here we identified, through a siRNA screen, beta site amyloid precursor protein cleaving enzyme 2 (Bace2) as the sheddase of the proproliferative plasma membrane protein Tmem27 in murine and human β cells.
4651 21907142 Mice with functionally inactive Bace2 and insulin-resistant mice treated with a newly identified Bace2 inhibitor both display augmented β cell mass and improved control of glucose homeostasis due to increased insulin levels.
4652 21917439 CD4T cells are attracted to islets by β-cell antigens which include insulin and the two new autoantigens, chromogranin A and islet amyloid polypeptide, all proteins of the secretory granule.
4653 21917439 Peptides of insulin and ChgA bind to the NOD class II molecule in an unconventional manner and since autoantigenic peptides may typically bind to MHC with low affinity, it is postulated that post-translational modifications of β-cell peptides could contribute to the interaction between peptides, MHC, and the autoreactive TCR.
4654 21921296 To address this, the authors examined the metabolic and physiological consequences of experimentally controlled circadian rhythm disruption in wild-type (WT) Sprague Dawley and diabetes-prone human islet amyloid polypeptide transgenic (HIP) rats: a validated model of T2DM.
4655 21966328 Amylin, (islet amyloid polypeptide) or diabetes-associated peptide is co-secreted with insulin in the islet of Langerhans of diabetic patients in approximately 1:100, amylin-insulin ratio.
4656 21984830 Involvement of ATP-sensitive potassium (K(ATP)) channels in the loss of beta-cell function induced by human islet amyloid polypeptide.
4657 21984830 Islet amyloid polypeptide (IAPP) is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes.
4658 21984830 Involvement of ATP-sensitive potassium (K(ATP)) channels in the loss of beta-cell function induced by human islet amyloid polypeptide.
4659 21984830 Islet amyloid polypeptide (IAPP) is a major component of amyloid deposition in pancreatic islets of patients with type 2 diabetes.
4660 21986708 Serum amyloid A is a growth factor for 3T3-L1 adipocytes, inhibits differentiation and promotes insulin resistance.
4661 22000494 The mechanisms of action include a decrease of hepatic insulin resistance, change in bile acids metabolism, incretins release and decreased amyloid deposits.
4662 22003494 Co-assembly of human islet amyloid polypeptide (hIAPP)/insulin.
4663 22038516 cJUN N-terminal kinase (JNK) activation mediates islet amyloid-induced beta cell apoptosis in cultured human islet amyloid polypeptide transgenic mouse islets.
4664 22057897 Insulin receptor signaling mediates APP processing and β-amyloid accumulation without altering survival in a transgenic mouse model of Alzheimer's disease.
4665 22057897 In brains from patients with Alzheimer's disease (AD), expression of insulin receptor (IR), insulin-like growth factor-1 receptor (IGF-1R), and insulin receptor substrate proteins is downregulated.
4666 22057897 A key step in the pathogenesis of AD is the accumulation of amyloid precursor protein (APP) cleavage products, β-amyloid (Aβ)(1-42) and Aβ(1-40).
4667 22057897 Analyzing APP C-terminal fragments (CTF) revealed decreased α-/β-CTFs in the brains of nIR(-/-)Tg2576 mice suggesting decreased APP processing.
4668 22057897 Cell based experiments showed that inhibition of the PI3-kinase pathway suppresses endosomal APP cleavage and decreases α- as well as β-secretase activity.
4669 22057897 Deletion of only one copy of the neuronal IGF-1R partially rescues the premature mortality of Tg2576 mice without altering total amyloid load.
4670 22057897 Analysis of Tg2576 mice expressing either a dominant negative or constitutively active form of forkhead box-O (FoxO)1 did not reveal any alteration of amyloid burden, APP processing and did not rescue premature mortality in these mice.
4671 22057897 But exclusively decreased IGF-1R expression reduces AD-associated mortality independent of β-amyloid accumulation and FoxO1-mediated transcription.
4672 22057897 Insulin receptor signaling mediates APP processing and β-amyloid accumulation without altering survival in a transgenic mouse model of Alzheimer's disease.
4673 22057897 In brains from patients with Alzheimer's disease (AD), expression of insulin receptor (IR), insulin-like growth factor-1 receptor (IGF-1R), and insulin receptor substrate proteins is downregulated.
4674 22057897 A key step in the pathogenesis of AD is the accumulation of amyloid precursor protein (APP) cleavage products, β-amyloid (Aβ)(1-42) and Aβ(1-40).
4675 22057897 Analyzing APP C-terminal fragments (CTF) revealed decreased α-/β-CTFs in the brains of nIR(-/-)Tg2576 mice suggesting decreased APP processing.
4676 22057897 Cell based experiments showed that inhibition of the PI3-kinase pathway suppresses endosomal APP cleavage and decreases α- as well as β-secretase activity.
4677 22057897 Deletion of only one copy of the neuronal IGF-1R partially rescues the premature mortality of Tg2576 mice without altering total amyloid load.
4678 22057897 Analysis of Tg2576 mice expressing either a dominant negative or constitutively active form of forkhead box-O (FoxO)1 did not reveal any alteration of amyloid burden, APP processing and did not rescue premature mortality in these mice.
4679 22057897 But exclusively decreased IGF-1R expression reduces AD-associated mortality independent of β-amyloid accumulation and FoxO1-mediated transcription.
4680 22057897 Insulin receptor signaling mediates APP processing and β-amyloid accumulation without altering survival in a transgenic mouse model of Alzheimer's disease.
4681 22057897 In brains from patients with Alzheimer's disease (AD), expression of insulin receptor (IR), insulin-like growth factor-1 receptor (IGF-1R), and insulin receptor substrate proteins is downregulated.
4682 22057897 A key step in the pathogenesis of AD is the accumulation of amyloid precursor protein (APP) cleavage products, β-amyloid (Aβ)(1-42) and Aβ(1-40).
4683 22057897 Analyzing APP C-terminal fragments (CTF) revealed decreased α-/β-CTFs in the brains of nIR(-/-)Tg2576 mice suggesting decreased APP processing.
4684 22057897 Cell based experiments showed that inhibition of the PI3-kinase pathway suppresses endosomal APP cleavage and decreases α- as well as β-secretase activity.
4685 22057897 Deletion of only one copy of the neuronal IGF-1R partially rescues the premature mortality of Tg2576 mice without altering total amyloid load.
4686 22057897 Analysis of Tg2576 mice expressing either a dominant negative or constitutively active form of forkhead box-O (FoxO)1 did not reveal any alteration of amyloid burden, APP processing and did not rescue premature mortality in these mice.
4687 22057897 But exclusively decreased IGF-1R expression reduces AD-associated mortality independent of β-amyloid accumulation and FoxO1-mediated transcription.
4688 22064122 Here we test backbone contributions to fibril stability using analogs of the 6-10 residue fibril core of human islet amyloid polypeptide, a 37 amino acid peptide involved in the pathogenesis of type II diabetes.
4689 22075273 Short-term walnut consumption increases circulating total adiponectin and apolipoprotein A concentrations, but does not affect markers of inflammation or vascular injury in obese humans with the metabolic syndrome: data from a double-blinded, randomized, placebo-controlled study.
4690 22075273 Consumption of walnuts was associated with a statistically significant increase in serum apolipoprotein A concentrations (P = .03), but did not affect circulating levels of fetuin A, resistin, C-reactive protein, serum amyloid A, soluble intercellular adhesion molecules 1 and 3, soluble vascular cell adhesion protein 1, interleukins 6 and 8, tumor necrosis factor α, E-selectin, P-selectin, and thrombomodulin.
4691 22098747 TTR is found in amyloid deposits of patients with senile systemic amyloidosis.
4692 22098747 TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset.
4693 22098747 Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation.
4694 22098747 However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure.
4695 22098747 We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition.
4696 22098747 TTR is found in amyloid deposits of patients with senile systemic amyloidosis.
4697 22098747 TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset.
4698 22098747 Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation.
4699 22098747 However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure.
4700 22098747 We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition.
4701 22098747 TTR is found in amyloid deposits of patients with senile systemic amyloidosis.
4702 22098747 TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset.
4703 22098747 Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation.
4704 22098747 However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure.
4705 22098747 We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition.
4706 22098747 TTR is found in amyloid deposits of patients with senile systemic amyloidosis.
4707 22098747 TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset.
4708 22098747 Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation.
4709 22098747 However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure.
4710 22098747 We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition.
4711 22098747 TTR is found in amyloid deposits of patients with senile systemic amyloidosis.
4712 22098747 TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset.
4713 22098747 Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation.
4714 22098747 However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure.
4715 22098747 We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition.
4716 22165048 The findings were consistent with nodular cutaneous amyloidosis (NCA) of the amyloid light-type.
4717 22178988 In this study, we compared indexes of peripheral neuropathy and investigated insulin signaling in the sciatic nerve of insulin-deficient mice and amyloid precursor protein (APP) overexpressing transgenic mice.
4718 22178988 Insulin-deficient and APP transgenic mice displayed similar patterns of peripheral neuropathy with decreased motor nerve conduction velocity, thermal hypoalgesia, and loss of tactile sensitivity.
4719 22178988 Phosphorylation of the insulin receptor and glycogen synthase kinase 3β (GSK3β) was similarly affected in insulin-deficient and APP transgenic mice despite significantly different blood glucose and plasma insulin levels, and nerve of both models showed accumulation of Aβ-immunoreactive protein.
4720 22183778 Concentration-dependent transitions govern the subcellular localization of islet amyloid polypeptide.
4721 22183778 Islet amyloid polypeptide (IAPP) is a peptide hormone cosecreted with insulin by pancreatic β-cells.
4722 22183778 Concentration-dependent transitions govern the subcellular localization of islet amyloid polypeptide.
4723 22183778 Islet amyloid polypeptide (IAPP) is a peptide hormone cosecreted with insulin by pancreatic β-cells.
4724 22197104 Here, we demonstrated that HFD markedly deteriorated memory impairment and increased β-amyloid (Aβ) oligomers as well as Aβ deposition in amyloid precursor protein (APP) transgenic mice, which was reversed by exposure to an enriched environment for 10 weeks, despite the continuation of HFD.
4725 22206987 Sensitivity of amyloid formation by human islet amyloid polypeptide to mutations at residue 20.
4726 22206987 Islet amyloid polypeptide (IAPP, amylin) is responsible for amyloid formation in type 2 diabetes and in islet cell transplants.
4727 22206987 Sensitivity of amyloid formation by human islet amyloid polypeptide to mutations at residue 20.
4728 22206987 Islet amyloid polypeptide (IAPP, amylin) is responsible for amyloid formation in type 2 diabetes and in islet cell transplants.
4729 22210153 Amphiphilic adsorption of human islet amyloid polypeptide aggregates to lipid/aqueous interfaces.
4730 22238175 Morin hydrate inhibits amyloid formation by islet amyloid polypeptide and disaggregates amyloid fibers.
4731 22238175 The polypeptide hormone Islet Amyloid Polypeptide (IAPP, amylin) is responsible for islet amyloid formation in type-2 diabetes and in islet cell transplants, where it may contribute to graft failure.
4732 22238175 Morin hydrate inhibits amyloid formation by islet amyloid polypeptide and disaggregates amyloid fibers.
4733 22238175 The polypeptide hormone Islet Amyloid Polypeptide (IAPP, amylin) is responsible for islet amyloid formation in type-2 diabetes and in islet cell transplants, where it may contribute to graft failure.
4734 22238252 Depolymerization of insulin amyloid fibrils by albumin-modified magnetic fluid.
4735 22238252 We have studied the interference of insulin amyloid fibrils with a series of 18 albumin magnetic fluids (MFBSAs) consisting of magnetite nanoparticles modified by different amounts of bovine serum albumin (w/w BSA/Fe₃O₄ from 0.005 up to 15).
4736 22238252 Depolymerization of insulin amyloid fibrils by albumin-modified magnetic fluid.
4737 22238252 We have studied the interference of insulin amyloid fibrils with a series of 18 albumin magnetic fluids (MFBSAs) consisting of magnetite nanoparticles modified by different amounts of bovine serum albumin (w/w BSA/Fe₃O₄ from 0.005 up to 15).
4738 22274563 Apcs, encoding an acute phase response protein serum amyloid P (SAP), is located underneath the linkage peak of Bglu3.
4739 22274563 The Western diet consumption led to a gradual rise in plasma SAP levels, which was accompanied by rising fasting glucose in both B6 and C3H apoE(-/-) mice.
4740 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4741 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4742 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4743 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4744 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4745 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4746 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4747 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4748 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4749 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4750 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4751 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4752 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4753 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4754 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4755 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4756 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4757 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4758 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4759 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4760 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4761 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4762 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4763 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4764 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4765 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4766 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4767 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4768 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4769 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4770 22301943 Deletion of Fas protects islet beta cells from cytotoxic effects of human islet amyloid polypeptide.
4771 22301943 We used islet beta cells as well as two ex vivo models of islet amyloid formation, cultured human islets and hIAPP-expressing transgenic mouse islets with or without beta cell Fas deletion, to test whether: (1) the aggregation of endogenous hIAPP induces Fas upregulation in beta cells; and (2) deletion or blocking of Fas protects beta cells from amyloid toxicity.
4772 22301943 METHODS: INS-1, mouse or human islet cells were cultured with hIAPP alone, or with amyloid inhibitor or Fas antagonist.
4773 22301943 The amyloid inhibitor or Fas antagonist reduced apoptosis in hIAPP-treated beta cells.
4774 22301943 Ad-ProhIAPP-siRNA-mediated amyloid inhibition reduced Fas upregulation and IL-1β immunoreactivity in human and hIAPP-expressing mouse islets.
4775 22301943 Cultured hIAPP-expressing mouse islets with Fas deletion had similar amyloid levels, but lower caspase-3 activation and beta cell apoptosis, and a higher islet beta:alpha cell ratio and insulin response to glucose, compared with islets expressing Fas and hIAPP.
4776 22334700 Islet amyloid polypeptide triggers limited complement activation and binds complement inhibitor C4b-binding protein, which enhances fibril formation.
4777 22334700 Islet amyloid polypeptide (IAPP) is synthesized in pancreatic β-cells and co-secreted with insulin.
4778 22334700 Furthermore, IAPP also bound complement inhibitors factor H and C4b-binding protein (C4BP).
4779 22334700 Immunostaining of pancreatic sections from type 2 diabetic patients revealed the presence of complement factors in the islets and varying degree of co-localization between IAPP fibrils and C1q, C3d, as well as C4BP and factor H but not membrane attack complex.
4780 22334700 Islet amyloid polypeptide triggers limited complement activation and binds complement inhibitor C4b-binding protein, which enhances fibril formation.
4781 22334700 Islet amyloid polypeptide (IAPP) is synthesized in pancreatic β-cells and co-secreted with insulin.
4782 22334700 Furthermore, IAPP also bound complement inhibitors factor H and C4b-binding protein (C4BP).
4783 22334700 Immunostaining of pancreatic sections from type 2 diabetic patients revealed the presence of complement factors in the islets and varying degree of co-localization between IAPP fibrils and C1q, C3d, as well as C4BP and factor H but not membrane attack complex.
4784 22355065 In two islet recipients with no evidence of rejection and still normoglycemic and insulin independent at the first detection of amyloid, β-cell secretory capacity declined over time coincident with increasing amyloid severity and decreasing β-cell area, with both animals eventually becoming hyperglycemic and insulin dependent.
4785 22363506 However, it was extremely thermodynamically stable and did not form amyloid fibrils when subjected to mechanical stress, underlining the importance of oligomerization for insulin stability.
4786 22366091 Silibinin inhibits the toxic aggregation of human islet amyloid polypeptide.
4787 22366091 In type 2 diabetes mellitus (T2DM), misfolded human islet amyloid polypeptide (hIAPP) forms amyloid deposits in pancreatic islets.
4788 22366091 Silibinin inhibits the toxic aggregation of human islet amyloid polypeptide.
4789 22366091 In type 2 diabetes mellitus (T2DM), misfolded human islet amyloid polypeptide (hIAPP) forms amyloid deposits in pancreatic islets.
4790 22403710 In this study, we applied streptozotocin (STZ) to induce experimental diabetes in AD transgenic mice (5XFAD model) and investigated how insulin deficiency affects the β-amyloidogenic processing of amyloid precursor protein (APP).
4791 22403710 Importantly, STZ-induced insulin deficiency upregulated levels of both β-site APP cleaving enzyme 1 (BACE1) and full-length APP in 5XFAD mouse brains, which was accompanied by dramatic elevations in the β-cleaved C-terminal fragment (C99).
4792 22403710 Interestingly, BACE1 mRNA levels were not affected, whereas phosphorylation of the translation initiation factor eIF2α, a mechanism proposed to mediate the post-transcriptional upregulation of BACE1, was significantly elevated in STZ-treated 5XFAD mice.
4793 22403710 Moreover, STZ treatments did not affect levels of Aβ-degrading enzymes such as neprilysin and insulin-degrading enzyme (IDE) in 5XFAD brains.
4794 22403710 Taken together, our findings provide a mechanistic foundation for a link between diabetes and AD by demonstrating that insulin deficiency may change APP processing to favor β-amyloidogenesis via the translational upregulation of BACE1 in combination with elevations in its substrate, APP.
4795 22404928 How type II diabetes-related islet amyloid polypeptide damages lipid bilayers.
4796 22404928 A leading hypothesis for the decimation of insulin-producing β-cells in type 2 diabetes attributes the cause to islet amyloid polypeptide (IAPP) for its deleterious effects on the cell membranes.
4797 22404928 How type II diabetes-related islet amyloid polypeptide damages lipid bilayers.
4798 22404928 A leading hypothesis for the decimation of insulin-producing β-cells in type 2 diabetes attributes the cause to islet amyloid polypeptide (IAPP) for its deleterious effects on the cell membranes.
4799 22406002 In the Sydney Memory and Aging Study, the relationships between remitted depression, current and first onset of symptoms of depression or anxiety (Geriatric Depression Scale and Goldberg Anxiety Scale (GDS, GAS), and markers of systemic inflammation (C-reactive protein (CRP), interleukins-1β, -6, -8, -10, -12, plasminogen activator inhibitor-1 (PAI-1), serum amyloid A, tumor necrosis factor-α, and vascular adhesion molecule-1) were investigated.
4800 22406002 The results show a significant linear relationship between increasing levels of IL-6 and depressive symptoms at baseline only, whereas IL-8 was associated with depressed symptoms at baseline and at 2 years follow-up.
4801 22406002 The findings are suggestive of IL-6 and IL-8 being associated with current symptoms and IL-8 being associated with first onset of depressive symptoms, whereas PAI-1 could be regarded as a marker of remitted depression.
4802 22408171 Translational control of glucose-induced islet amyloid polypeptide production in pancreatic islets.
4803 22408171 Dysfunctional islet amyloid polypeptide (IAPP) biosynthesis and/or processing are thought contribute to formation of islet amyloid in type 2 diabetes.
4804 22408171 Here, it was found that acute exposure to high glucose concentrations coordinately regulated the biosynthesis of pro-IAPP, proinsulin, and its proprotein convertase PC1/3 in normal isolated rat islets, without affecting their respective mRNA levels.
4805 22408171 Translational control of glucose-induced islet amyloid polypeptide production in pancreatic islets.
4806 22408171 Dysfunctional islet amyloid polypeptide (IAPP) biosynthesis and/or processing are thought contribute to formation of islet amyloid in type 2 diabetes.
4807 22408171 Here, it was found that acute exposure to high glucose concentrations coordinately regulated the biosynthesis of pro-IAPP, proinsulin, and its proprotein convertase PC1/3 in normal isolated rat islets, without affecting their respective mRNA levels.
4808 22411248 Some basic research, however, suggests that insulin accelerates Alzheimer-related pathology through its effects on the amyloid beta (Aβ) metabolism and tau phosphorylation.Asymptomatic ischemic lesions in T2DM subjects may lower the threshold for the development of dementia and this may explain the inconsistency between the basic research and clinicopathological studies.More research to elucidate the mechanism of neurodegeneration associated with T2DM is warranted.
4809 22425595 The pathological hallmarks for AD brains are extracellular amyloid plaques formed by β-amyloid peptide (Aβ) and intracellular neurofibrillary tangles consisting of hyperphosphorylated tau protein.
4810 22425595 Activated/phosphorylated c-jun N-terminal kinase (JNK), a tau kinase, was increased in the db/db mouse hippocampus.
4811 22425595 Metformin attenuated the increase of total tau, phospho-tau and activated JNK.
4812 22488522 Here we tested their generic properties and their ability to inhibit other amyloidogenic proteins including α-synuclein, islet amyloid polypeptide, lysozyme, calcitonin, and insulin.
4813 22500019 The two age-prevalent diseases Alzheimer disease and type 2 diabetes mellitus share many common features including the deposition of amyloidogenic proteins, amyloid β protein (Aβ) and amylin (islet amyloid polypeptide), respectively.
4814 22500019 Aβ1-42 and human amylin (hAmylin) increase cytosolic cAMP and Ca(2+), trigger multiple pathways involving the signal transduction mediators protein kinase A, MAPK, Akt, and cFos.
4815 22500019 Amylin receptor antagonist AC253 blocks increases in intracellular Ca(2+), activation of protein kinase A, MAPK, Akt, cFos, and cell death, which occur upon AMY3 activation with hAmylin, Aβ1-42, or their co-application.
4816 22504909 Lipopolysaccharide treatment or high-fat diet led to an increase in circulating serum amyloid (SAA) and α1-acid glycoprotein (AGP), whereas adipsin levels were reduced.
4817 22504909 Mouse models that are protected against diet-induced challenges, such as adiponectin-overexpressing animals or mice treated with PPARγ agonists, displayed lower SAA levels and higher adip-sin levels.
4818 22528080 Here, we review the application of photo-induced cross-linking of unmodified proteins (PICUP) to two disease-related amyloidogenic proteins (1) islet amyloid polypeptide (IAPP), whose toxic oligomers are thought to cause the demise of pancreatic β-cells in type-2 diabetes mellitus and (2) α-synuclein, which aggregates into toxic oligomers and precipitates in Lewy bodies in Parkinson's disease.
4819 22542527 Nucleobindin 1 caps human islet amyloid polypeptide protofibrils to prevent amyloid fibril formation.
4820 22542527 Many human diseases are associated with amyloid fibril deposition, including type 2 diabetes mellitus where human islet amyloid polypeptide (hIAPP) forms fibrils in the pancreas.
4821 22542527 This mode of action appears to be different from other protein-based inhibitors, suggesting that NUCB1 may offer a new approach to inhibiting amyloid formation and disaggregating amyloid fibrils.
4822 22542527 Nucleobindin 1 caps human islet amyloid polypeptide protofibrils to prevent amyloid fibril formation.
4823 22542527 Many human diseases are associated with amyloid fibril deposition, including type 2 diabetes mellitus where human islet amyloid polypeptide (hIAPP) forms fibrils in the pancreas.
4824 22542527 This mode of action appears to be different from other protein-based inhibitors, suggesting that NUCB1 may offer a new approach to inhibiting amyloid formation and disaggregating amyloid fibrils.
4825 22542527 Nucleobindin 1 caps human islet amyloid polypeptide protofibrils to prevent amyloid fibril formation.
4826 22542527 Many human diseases are associated with amyloid fibril deposition, including type 2 diabetes mellitus where human islet amyloid polypeptide (hIAPP) forms fibrils in the pancreas.
4827 22542527 This mode of action appears to be different from other protein-based inhibitors, suggesting that NUCB1 may offer a new approach to inhibiting amyloid formation and disaggregating amyloid fibrils.
4828 22579683 Curcumin modulates the self-assembly of the islet amyloid polypeptide by disassembling α-helix.
4829 22579683 Using solution state (1)H NMR, we demonstrate that curcumin, a planar biphenolic compound found in the Indian spice turmeric, delays the self-assembly of islet amyloid polypeptide to NMR-invisible assemblies.
4830 22579683 Curcumin modulates the self-assembly of the islet amyloid polypeptide by disassembling α-helix.
4831 22579683 Using solution state (1)H NMR, we demonstrate that curcumin, a planar biphenolic compound found in the Indian spice turmeric, delays the self-assembly of islet amyloid polypeptide to NMR-invisible assemblies.
4832 22590535 The VEALYL short peptide from insulin has been confirmed to aggregate amyloid-like fibrils.
4833 22654727 The most important common mechanism between insulin-resistant (type II) diabetes and AD could be impaired insulin signaling; a form of toxic amyloid can damage neuronal insulin receptors and affect insulin signaling and cell survival.
4834 22654727 In addition, a major role for insulin degrading enzyme in the degradation of Aβ peptide has been identified.
4835 22693597 Lipid interaction and membrane perturbation of human islet amyloid polypeptide monomer and dimer by molecular dynamics simulations.
4836 22693597 The aggregation of human islet amyloid polypeptide (hIAPP or amylin) is associated with the pathogenesis of type 2 diabetes mellitus.
4837 22693597 Lipid interaction and membrane perturbation of human islet amyloid polypeptide monomer and dimer by molecular dynamics simulations.
4838 22693597 The aggregation of human islet amyloid polypeptide (hIAPP or amylin) is associated with the pathogenesis of type 2 diabetes mellitus.
4839 22732191 Saccharomyces cerevisiae Hsp104 and Escherichia coli ClpB are Hsp100 family AAA+ chaperones that provide stress tolerance by cooperating with Hsp70 and Hsp40 to solubilize aggregated protein.
4840 22732191 Hsp104 also remodels amyloid in vitro and promotes propagation of amyloid prions in yeast, but ClpB does neither, leading to a view that Hsp104 evolved these activities.
4841 22732191 We express prokaryotic chaperones in yeast to address these issues and find ClpB supports both prion propagation and thermotolerance in yeast if it is modified to interact with yeast Hsp70 or if E. coli Hsp70 and its cognate nucleotide exchange factor (NEF) are present.
4842 22732191 Our findings show prion propagation and thermotolerance in yeast minimally require cooperation of species-specific Hsp100, Hsp70, and NEF with yeast Hsp40.
4843 22781911 The occurrence of islet amyloid polypeptide amyloidosis in Japanese subjects.
4844 22787008 Human islet amyloid polypeptide at the air-aqueous interface: a Langmuir monolayer approach.
4845 22787008 Human islet amyloid polypeptide (hIAPP) is the source of the major component of the amyloid deposits found in the islets of Langerhans of around 95 per cent type 2 diabetic patients.
4846 22787008 Human islet amyloid polypeptide at the air-aqueous interface: a Langmuir monolayer approach.
4847 22787008 Human islet amyloid polypeptide (hIAPP) is the source of the major component of the amyloid deposits found in the islets of Langerhans of around 95 per cent type 2 diabetic patients.
4848 22819352 Levels of amyloid precursor protein, beta-amyloid((1-42)), as well as tau and phospho-tau 181 were significantly enhanced in the cortex of cholesterol-fed rats.
4849 22829447 Altered APP processing in insulin-resistant conditions is mediated by autophagosome accumulation via the inhibition of mammalian target of rapamycin pathway.
4850 22829447 Insulin resistance, one of the major components of type 2 diabetes mellitus (T2DM), is a known risk factor for Alzheimer's disease (AD), which is characterized by an abnormal accumulation of intra- and extracellular amyloid β peptide (Aβ).
4851 22829447 In this study, we examined the effect of high-fat diet-induced insulin resistance on amyloid precursor protein (APP) processing in mouse brains.
4852 22829447 Furthermore, in vitro experiments in insulin-resistant SH-SY5Y cells and primary cortical neurons confirmed the alteration of APP processing by insulin resistance-induced autophagosome accumulation.
4853 22829447 Defects in insulin signal transduction affect autophagic flux by inhibiting the mammalian target of rapamycin pathway, resulting in altered APP processing in these cell culture systems.
4854 22829447 Altered APP processing in insulin-resistant conditions is mediated by autophagosome accumulation via the inhibition of mammalian target of rapamycin pathway.
4855 22829447 Insulin resistance, one of the major components of type 2 diabetes mellitus (T2DM), is a known risk factor for Alzheimer's disease (AD), which is characterized by an abnormal accumulation of intra- and extracellular amyloid β peptide (Aβ).
4856 22829447 In this study, we examined the effect of high-fat diet-induced insulin resistance on amyloid precursor protein (APP) processing in mouse brains.
4857 22829447 Furthermore, in vitro experiments in insulin-resistant SH-SY5Y cells and primary cortical neurons confirmed the alteration of APP processing by insulin resistance-induced autophagosome accumulation.
4858 22829447 Defects in insulin signal transduction affect autophagic flux by inhibiting the mammalian target of rapamycin pathway, resulting in altered APP processing in these cell culture systems.
4859 22832314 Soluble oligomers of human islet amyloid polypeptide (h-IAPP) are believed to be the pathogenic species for type 2 diabetes mellitus.
4860 22847497 Islet amyloid polypeptide in pancreatic islets from type 2 diabetic subjects.
4861 22902430 We tested the effects of two types of three-dimensional scaffolds, collagen matrix (CM) and fibroblast-populated collagen matrix (FPCM), on amyloid formation, viability, and function of isolated islets.
4862 22902430 IL-1β and Fas levels were also reduced in scaffold-embedded islets.
4863 22902430 Moreover, culture in CM and FPCM (but not 2D) preserved insulin, GLUT-2, and PDX-1 mRNA expression.
4864 22902430 FPCM-embedded islets had significantly higher insulin response and lower amyloid formation than CM-embedded islets.
4865 22902430 We tested the effects of two types of three-dimensional scaffolds, collagen matrix (CM) and fibroblast-populated collagen matrix (FPCM), on amyloid formation, viability, and function of isolated islets.
4866 22902430 IL-1β and Fas levels were also reduced in scaffold-embedded islets.
4867 22902430 Moreover, culture in CM and FPCM (but not 2D) preserved insulin, GLUT-2, and PDX-1 mRNA expression.
4868 22902430 FPCM-embedded islets had significantly higher insulin response and lower amyloid formation than CM-embedded islets.
4869 22924529 A few cases of localized insulin-derived amyloid deposits at injection sites have been reported previously, but none had significant epidermal changes.
4870 22924529 The presence of a tumour-like lesion at the injection site should be carefully examined, as injection of insulin into amyloid deposits can result in insulin resistance.
4871 22924529 A few cases of localized insulin-derived amyloid deposits at injection sites have been reported previously, but none had significant epidermal changes.
4872 22924529 The presence of a tumour-like lesion at the injection site should be carefully examined, as injection of insulin into amyloid deposits can result in insulin resistance.
4873 22936797 Overall sulfation of heparan sulfate from pancreatic islet β-TC3 cells increases maximal fibril formation but does not determine binding to the amyloidogenic peptide islet amyloid polypeptide.
4874 22936797 Islet amyloid, a pathologic feature of type 2 diabetes, contains the islet β-cell peptide islet amyloid polypeptide (IAPP) as its unique amyloidogenic component.
4875 22936797 Overall sulfation of heparan sulfate from pancreatic islet β-TC3 cells increases maximal fibril formation but does not determine binding to the amyloidogenic peptide islet amyloid polypeptide.
4876 22936797 Islet amyloid, a pathologic feature of type 2 diabetes, contains the islet β-cell peptide islet amyloid polypeptide (IAPP) as its unique amyloidogenic component.
4877 22961553 In a well-established model of hypercholesterolaemia, the apolipoprotein E knockout mouse, we report increased brain levels of immunoglobulin G and upregulation of activating Fc receptors, predominantly of type IV, in neurons susceptible to amyloid β accumulation.
4878 22961553 These cognition-protective effects were associated with a reduction in synapse loss, tau hyperphosphorylation and intracellular amyloid β accumulation both in cortical and hippocampal pyramidal neurons.
4879 22961553 In vitro, activating Fc receptor engagement caused synapse loss, tau hyperphosphorylation and amyloid β deposition in primary neurons by a mechanism involving mitogen-activated protein kinases and β-site amyloid precursor protein cleaving enzyme 1.
4880 22961553 In a well-established model of hypercholesterolaemia, the apolipoprotein E knockout mouse, we report increased brain levels of immunoglobulin G and upregulation of activating Fc receptors, predominantly of type IV, in neurons susceptible to amyloid β accumulation.
4881 22961553 These cognition-protective effects were associated with a reduction in synapse loss, tau hyperphosphorylation and intracellular amyloid β accumulation both in cortical and hippocampal pyramidal neurons.
4882 22961553 In vitro, activating Fc receptor engagement caused synapse loss, tau hyperphosphorylation and amyloid β deposition in primary neurons by a mechanism involving mitogen-activated protein kinases and β-site amyloid precursor protein cleaving enzyme 1.
4883 22961553 In a well-established model of hypercholesterolaemia, the apolipoprotein E knockout mouse, we report increased brain levels of immunoglobulin G and upregulation of activating Fc receptors, predominantly of type IV, in neurons susceptible to amyloid β accumulation.
4884 22961553 These cognition-protective effects were associated with a reduction in synapse loss, tau hyperphosphorylation and intracellular amyloid β accumulation both in cortical and hippocampal pyramidal neurons.
4885 22961553 In vitro, activating Fc receptor engagement caused synapse loss, tau hyperphosphorylation and amyloid β deposition in primary neurons by a mechanism involving mitogen-activated protein kinases and β-site amyloid precursor protein cleaving enzyme 1.
4886 22988095 O-GlcNAc cycling dramatically modulated the severity of the phenotype in transgenic models of tauopathy, amyloid β-peptide, and polyglutamine expansion.
4887 22988095 Intriguingly, loss of function of O-GlcNAc transferase alleviated, whereas loss of O-GlcNAcase enhanced, the phenotype of multiple neurodegenerative disease models.
4888 23011726 Liraglutide, a novel glucagon-like peptide 1 (GLP-1) analogue that facilitates insulin signalling, is currently approved for use in type 2 diabetes mellitus.
4889 23011726 In the present study, we show that distinctive alterations in the localisation and distribution of the IR and increased levels of insulin receptor substrate (IRS)-1 phosphorylated at serine 616 (IRS-1 pS(616)), a key marker of insulin resistance, are associated with amyloid-β plaque pathology in the frontal cortex of a mouse model of AD, APPSWE/PS1dE9.
4890 23011726 We show that liraglutide treatment for 8 weeks at 25 nmol/kg body weight i.p. once daily in 7-month-old mice significantly decreases IR aberrations in conjunction with a concomitant decrease in amyloid plaque load and levels of IRS-1 pS(616).
4891 23011726 The amelioration of IR aberrations and attenuation of IRS-1 pS(616) upregulation, plaque and glial activation in APPSWE/PS1dE9 mice treated with liraglutide support the investigation of the therapeutic potential of liraglutide and long-lasting GLP-1 agonists in patients with AD.
4892 23040364 It was subsequently observed that several of these conditions were caused by mutations in proteins involved in the innate immune response, including, among others, components of the NLRP3 inflammasome, cytokine receptors (tumour necrosis factor receptor 1 (TNFR1)) and receptor antagonists (interleukin 1 receptor antagonist (IL-1RA)).
4893 23040364 NLRP3 inflammasome activation is induced by islet amyloid polypeptides (IAPPs) in T2D and this condition may, in future, be more commonly treated with targeted anti-cytokine therapies.
4894 23040364 Caspase 1 activation and release of IL-1β/IL-1 family members is central to the pathogenesis of many autoinflammatory syndromes, as evidenced by the effectiveness of anti-IL-1 biologics in treating these disorders.
4895 23086037 In this study, we investigated patterns of NLRP3 inflammasome activation in monocyte-derived macrophages (MDMs) from drug-naïve patients with newly diagnosed type 2 diabetes.
4896 23086037 Type 2 diabetic subjects had significantly increased mRNA and protein expression of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), and proinflammatory cytokines in MDMs cultured with autologous sera compared with healthy controls.
4897 23086037 Upregulated interleukin (IL)-1β maturation, IL-18 secretion, and caspase-1 cleavage were observed in MDMs from type 2 diabetic patients after stimulation with various danger molecules (ATP, high-mobility group protein B1, free fatty acids, islet amyloid polypeptide, and monosodium uric acid crystals).
4898 23086037 Mitochondrial reactive oxygen species and NLRP3 were required for IL-1β synthesis in MDMs.
4899 23086037 Finally, 2 months of therapy with the antidiabetic drug metformin significantly inhibited the maturation of IL-1β in MDMs from patients with type 2 diabetes through AMP-activated protein kinase (AMPK) activation.
4900 23089868 We describe the structures and inhibitory properties of ABSMs containing amyloidogenic peptides from the amyloid-β peptide associated with Alzheimer's disease, β(2)-microglobulin associated with dialysis-related amyloidosis, α-synuclein associated with Parkinson's disease, islet amyloid polypeptide associated with type II diabetes, human and yeast prion proteins, and Tau, which forms neurofibrillary tangles.
4901 23103794 The incretin analogue D-Ala2GIP reduces plaque load, astrogliosis and oxidative stress in an APP/PS1 mouse model of Alzheimer's disease.
4902 23103794 Glucose-dependent insulinotropic polypeptide (GIP), an incretin hormone, normalises insulin signalling and also acts as a neuroprotective growth factor.
4903 23103794 D-Ala(2)GIP was injected for 35 days at 25 nmol/kg i.p. once daily in APP/PS1 male mice and wild-type (WT) littermates aged 6, 12 and 19 months.
4904 23103794 D-Ala(2)GIP reduced the amyloid plaque load in 12- and 19-month-old mice, and the inflammation response as shown in the reduction of activated astrocytes in 12- and 19-month old APP/PS1 mice.
4905 23103794 Chronic oxidative stress in the brain was reduced in 12- and 19-month-old mice as shown in the reduction of 8-oxoguanine levels in the cortex of D-Ala(2)GIP-injected APP/PS1 mice.
4906 23161913 Grafted AMyloid-Motif AntiBODIES (gammabodies) presenting hydrophobic peptides from Aβ (Alzheimer's disease), α-Synuclein (Parkinson's disease), and islet amyloid polypeptide (type 2 diabetes) inhibit fibril assembly of each corresponding polypeptide at low substoichiometric concentrations (1:10 gammabody:monomer molar ratio).
4907 23180621 Salvianolic acid B inhibits the amyloid formation of human islet amyloid polypeptide and protects pancreatic beta-cells against cytotoxicity.
4908 23180621 The misfolding of human islet amyloid polypeptide (hIAPP) is regarded as one of the causative factors of type 2 diabetes mellitus (T2DM).
4909 23180621 Salvianolic acid B inhibits the amyloid formation of human islet amyloid polypeptide and protects pancreatic beta-cells against cytotoxicity.
4910 23180621 The misfolding of human islet amyloid polypeptide (hIAPP) is regarded as one of the causative factors of type 2 diabetes mellitus (T2DM).
4911 23197723 PPARγ/RXRα-induced and CD36-mediated microglial amyloid-β phagocytosis results in cognitive improvement in amyloid precursor protein/presenilin 1 mice.
4912 23197723 Evaluation of DSP-8658 in the amyloid precursor protein/presenilin 1 mouse model confirmed an increased microglial Aβ phagocytosis in vivo, which subsequently resulted in a reduction of cortical and hippocampal Aβ levels.
4913 23197723 PPARγ/RXRα-induced and CD36-mediated microglial amyloid-β phagocytosis results in cognitive improvement in amyloid precursor protein/presenilin 1 mice.
4914 23197723 Evaluation of DSP-8658 in the amyloid precursor protein/presenilin 1 mouse model confirmed an increased microglial Aβ phagocytosis in vivo, which subsequently resulted in a reduction of cortical and hippocampal Aβ levels.
4915 23225004 Islet amyloid polypeptide: aggregation and fibrillogenesis in vitro and its inhibition.
4916 23225004 The development of type 2 diabetes mellitus is associated with the dysfunction of b-cells which is correlated to the formation of deposits consisting of the islet amyloid polypeptide (IAPP).
4917 23225004 Islet amyloid polypeptide: aggregation and fibrillogenesis in vitro and its inhibition.
4918 23225004 The development of type 2 diabetes mellitus is associated with the dysfunction of b-cells which is correlated to the formation of deposits consisting of the islet amyloid polypeptide (IAPP).
4919 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4920 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4921 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4922 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4923 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4924 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4925 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4926 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4927 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4928 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4929 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4930 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4931 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4932 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4933 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4934 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4935 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4936 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4937 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4938 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4939 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4940 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4941 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4942 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4943 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4944 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4945 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4946 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4947 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4948 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4949 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4950 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4951 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4952 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4953 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4954 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4955 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4956 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4957 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4958 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4959 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4960 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4961 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4962 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4963 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4964 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4965 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4966 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4967 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4968 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4969 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4970 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4971 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4972 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4973 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4974 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4975 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4976 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4977 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4978 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4979 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4980 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4981 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4982 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4983 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4984 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4985 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4986 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4987 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4988 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
4989 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
4990 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
4991 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
4992 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
4993 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
4994 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
4995 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
4996 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
4997 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
4998 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
4999 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
5000 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
5001 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
5002 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
5003 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
5004 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
5005 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
5006 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
5007 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
5008 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
5009 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
5010 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
5011 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
5012 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
5013 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
5014 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
5015 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
5016 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
5017 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
5018 23229548 Matrix metalloproteinase-9 reduces islet amyloid formation by degrading islet amyloid polypeptide.
5019 23229548 Deposition of islet amyloid polypeptide (IAPP) as amyloid is a pathological hallmark of the islet in type 2 diabetes, which is toxic to β-cells.
5020 23229548 We previously showed that the enzyme neprilysin reduces islet amyloid deposition and thereby reduces β-cell apoptosis, by inhibiting fibril formation.
5021 23229548 Two other enzymes, matrix metalloproteinase (MMP)-2 and MMP-9, are extracellular gelatinases capable of degrading another amyloidogenic peptide, Aβ, the constituent of amyloid deposits in Alzheimer disease.
5022 23229548 We therefore investigated whether MMP-2 and MMP-9 play a role in reducing islet amyloid deposition.
5023 23229548 MMP-2 and MMP-9 mRNA were present in mouse islets but only MMP-9 activity was detectable.
5024 23229548 In an islet culture model where human IAPP (hIAPP) transgenic mouse islets develop amyloid but nontransgenic islets do not, a broad spectrum MMP inhibitor (GM6001) and an MMP-2/9 inhibitor increased amyloid formation and the resultant β-cell apoptosis.
5025 23229548 In contrast, a specific MMP-2 inhibitor had no effect on either amyloid deposition or β-cell apoptosis.
5026 23229548 Thus, MMP-9 constitutes an endogenous islet protease that limits islet amyloid deposition and its toxic effects via degradation of hIAPP.
5027 23229548 Because islet MMP-9 mRNA levels are decreased in type 2 diabetic subjects, islet MMP-9 activity may also be decreased in human type 2 diabetes, thereby contributing to increased islet amyloid deposition and β-cell loss.
5028 23229548 Approaches to increase islet MMP-9 activity could reduce or prevent amyloid deposition and its toxic effects in type 2 diabetes.
5029 23262664 The glucagon-like peptide-1 receptor agonist exenatide restores impaired pro-islet amyloid polypeptide processing in cultured human islets: implications in type 2 diabetes and islet transplantation.
5030 23266002 Aggregation of islet amyloid polypeptide: from physical chemistry to cell biology.
5031 23266002 Amyloid formation in the pancreas by islet amyloid polypeptide (IAPP) leads to β-cell death and dysfunction, contributing to islet transplant failure and to type-2 diabetes.
5032 23266002 Aggregation of islet amyloid polypeptide: from physical chemistry to cell biology.
5033 23266002 Amyloid formation in the pancreas by islet amyloid polypeptide (IAPP) leads to β-cell death and dysfunction, contributing to islet transplant failure and to type-2 diabetes.
5034 23267797 Rosiglitazone treatment does not decrease amyloid deposition in transplanted islets from transgenic mice expressing human islet amyloid polypeptide.
5035 23267797 We previously showed that amyloid deposition following transplantation of islets from human islet amyloid polypeptide (hIAPP) transgenic mice resulted in ß-cell loss and that rosiglitazone treatment decreased islet amyloid deposition and preserved ß-cell area in the endogenous pancreas of hIAPP transgenic mice.
5036 23267797 Rosiglitazone treatment does not decrease amyloid deposition in transplanted islets from transgenic mice expressing human islet amyloid polypeptide.
5037 23267797 We previously showed that amyloid deposition following transplantation of islets from human islet amyloid polypeptide (hIAPP) transgenic mice resulted in ß-cell loss and that rosiglitazone treatment decreased islet amyloid deposition and preserved ß-cell area in the endogenous pancreas of hIAPP transgenic mice.
5038 23300647 We studied the potential protective effect of adiponectin (an adipokine with insulin-sensitizing, anti-inflammatory and anti-oxidant properties) against Aβ neurotoxicity in human neuroblastoma cells (SH-SY5Y) transfected with the Swedish amyloid precursor protein (Sw-APP) mutant, which overproduced Aβ with abnormal intracellular Aβ accumulation.
5039 23300647 Our results revealed that Sw-APP transfected SH-SY5Y cells expressed both adiponectin receptor 1 and 2, and had increased AMP-activated protein kinase (AMPK) activation and enhanced nuclear factor-kappa B (NF-κB) activation compared to control empty-vector transfected SH-SY5Y cells.
5040 23300647 This neuroprotective action of adiponectin against Aβ neurotoxicity-induced cytotoxicity under oxidative stress involved 1) AMPK activation mediated via the endosomal adaptor protein APPL1 (adaptor protein with phosphotyrosine binding, pleckstrin homology domains and leucine zipper motif) and possibly 2) suppression of NF-κB activation.
5041 23335292 However, the native GLP-1 can be rapidly degraded by the enzyme dipeptidyl peptidase IV (DPP IV); the neuroprotective mechanism of GLP-1 in the central nervous system is still an open question, and whether GLP-1 can prevent amyloid β (Aβ)-induced synaptic dysfunction and calcium disorder is still unclear.
5042 23337872 Amyloid formation by the neuropancreatic hormone, islet amyloid polypeptide (IAPP or amylin), one of the most amyloidogenic sequences known, leads to islet amyloidosis in type 2 diabetes and to islet transplant failure.
5043 23349537 The islet in type 2 diabetes (T2DM) is characterized by a deficit in β-cells, increased β-cell apoptosis, and extracellular amyloid deposits derived from islet amyloid polypeptide (IAPP).
5044 23362012 Diabetes-induced increased levels of amyloid β protein and phosphorylated tau were not significantly affected by the treatments.
5045 23372685 Bisphenol A accelerates toxic amyloid formation of human islet amyloid polypeptide: a possible link between bisphenol A exposure and type 2 diabetes.
5046 23372685 Human islet amyloid polypeptide (hIAPP) is a hormone synthesized and secreted by the pancreatic β-cells.
5047 23372685 Bisphenol A accelerates toxic amyloid formation of human islet amyloid polypeptide: a possible link between bisphenol A exposure and type 2 diabetes.
5048 23372685 Human islet amyloid polypeptide (hIAPP) is a hormone synthesized and secreted by the pancreatic β-cells.
5049 23380070 The major protein component of islet amyloid is the polypeptide hormone known as islet amyloid polypeptide (IAPP, or amylin).
5050 23435449 Conformationally restricted short peptides inhibit human islet amyloid polypeptide (hIAPP) fibrillization.
5051 23437776 Optimization of peptide hydroxamate inhibitors of insulin-degrading enzyme reveals marked substrate-selectivity.
5052 23437776 Insulin-degrading enzyme (IDE) is an atypical zinc-metallopeptidase that degrades insulin and the amyloid ß-protein and is strongly implicated in the pathogenesis of diabetes and Alzheimer's disease.
5053 23457571 Amylin is an endocrine hormone that accumulates in amyloid plaques in patients with advanced type 2 diabetes.
5054 23478327 We describe mechanisms of action for combinations of glucagon-like peptide 1, glucagon, gastric inhibitory polypeptide, gastrin, islet amyloid polypeptide and leptin, which enhance weight loss whilst preserving glucoregulatory efficacy in experimental models of obesity and T2DM.
5055 23479452 Attenuation of the insulin amyloid aggregation in presence of Fe3O4-based magnetic fluids.
5056 23479452 Insulin amyloid aggregates have been reported in a patient with diabetes undergoing treatment by injection of insulin.
5057 23479452 We have investigated the interference of insulin amyloid aggregation with two Fe3O4-based magnetic fluids.
5058 23479452 The magnetic fluids are able to inhibit insulin amyloid fibrillization and promote disassembly of amyloid fibrils.
5059 23479452 Attenuation of the insulin amyloid aggregation in presence of Fe3O4-based magnetic fluids.
5060 23479452 Insulin amyloid aggregates have been reported in a patient with diabetes undergoing treatment by injection of insulin.
5061 23479452 We have investigated the interference of insulin amyloid aggregation with two Fe3O4-based magnetic fluids.
5062 23479452 The magnetic fluids are able to inhibit insulin amyloid fibrillization and promote disassembly of amyloid fibrils.
5063 23479452 Attenuation of the insulin amyloid aggregation in presence of Fe3O4-based magnetic fluids.
5064 23479452 Insulin amyloid aggregates have been reported in a patient with diabetes undergoing treatment by injection of insulin.
5065 23479452 We have investigated the interference of insulin amyloid aggregation with two Fe3O4-based magnetic fluids.
5066 23479452 The magnetic fluids are able to inhibit insulin amyloid fibrillization and promote disassembly of amyloid fibrils.
5067 23479452 Attenuation of the insulin amyloid aggregation in presence of Fe3O4-based magnetic fluids.
5068 23479452 Insulin amyloid aggregates have been reported in a patient with diabetes undergoing treatment by injection of insulin.
5069 23479452 We have investigated the interference of insulin amyloid aggregation with two Fe3O4-based magnetic fluids.
5070 23479452 The magnetic fluids are able to inhibit insulin amyloid fibrillization and promote disassembly of amyloid fibrils.
5071 23493863 Membrane disordering is not sufficient for membrane permeabilization by islet amyloid polypeptide: studies of IAPP(20-29) fragments.
5072 23493863 Human islet amyloid polypeptide protein (human-IAPP) is believed to play a crucial role in this process by forming small aggregates that exhibit toxicity by disrupting the cell membrane.
5073 23493863 Membrane disordering is not sufficient for membrane permeabilization by islet amyloid polypeptide: studies of IAPP(20-29) fragments.
5074 23493863 Human islet amyloid polypeptide protein (human-IAPP) is believed to play a crucial role in this process by forming small aggregates that exhibit toxicity by disrupting the cell membrane.
5075 23493869 Owing to the presence of various types of osmolytes in the cellular environment, this study focuses on the impact of stabilizing (TMAO and betaine) as well as destabilizing (urea) cosolvents on the aggregation and fibrillation reaction of the highly amyloidogenic islet amyloid polypeptide (IAPP).
5076 23499750 The misfolding of human islet amyloid polypeptide (hIAPP) is regarded as a causative factor of type 2 diabetes mellitus (T2DM).
5077 23505632 Zinc stabilization of prefibrillar oligomers of human islet amyloid polypeptide.
5078 23505632 The aggregation of human islet amyloid polypeptide (hIAPP) has been linked to beta-cell death in type II diabetes.
5079 23505632 Zinc stabilization of prefibrillar oligomers of human islet amyloid polypeptide.
5080 23505632 The aggregation of human islet amyloid polypeptide (hIAPP) has been linked to beta-cell death in type II diabetes.
5081 23519103 Human islet amyloid polypeptide (hIAPP) is the major component of amyloid deposits found in the pancreas of type II diabetic patients.
5082 23519103 Remarkably, different simulations lead to the same binding orientation stabilized by electrostatic and H-bonding interactions, with residues R11, F15 and S19 oriented towards membrane and hydrophobic residues L12, A13, L16 and V17 exposed to solvent.
5083 23526456 New insights into the roles of sulfated glycosaminoglycans in islet amyloid polypeptide amyloidogenesis and cytotoxicity.
5084 23526456 Particularly, GAGs were shown to enhance fibrillogenesis of the islet amyloid polypeptide (IAPP), a peptide hormone whose aggregation is associated with Type-II diabetes pathogenesis.
5085 23526456 New insights into the roles of sulfated glycosaminoglycans in islet amyloid polypeptide amyloidogenesis and cytotoxicity.
5086 23526456 Particularly, GAGs were shown to enhance fibrillogenesis of the islet amyloid polypeptide (IAPP), a peptide hormone whose aggregation is associated with Type-II diabetes pathogenesis.
5087 23528352 Inhibition of human islet amyloid polypeptide or amylin aggregation by two manganese-salen derivatives.
5088 23528352 Aggregation of human islet amyloid polypeptide (IAPP) into pancreatic fibrillar deposits has been postulated to be one of the main contributors to impaired insulin secretion and pancreatic β-cell death in approximately 90% of type 2 diabetic patients.
5089 23528352 Inhibition of human islet amyloid polypeptide or amylin aggregation by two manganese-salen derivatives.
5090 23528352 Aggregation of human islet amyloid polypeptide (IAPP) into pancreatic fibrillar deposits has been postulated to be one of the main contributors to impaired insulin secretion and pancreatic β-cell death in approximately 90% of type 2 diabetic patients.
5091 23546612 We recorded age, sex, BMI, waist/hip ratio, diabetes duration, HbA1c, CVE history, serum amyloid A (SAA), TSH, total (T) and free (F) T4 and T3, reverse T3 (rT3) and TT3/rT3 ratio.
5092 23568101 D-Ala2GIP facilitated synaptic plasticity in AβPP/PS1 and WT mice and reduced the number of amyloid plaques and activated microglia in the cortex of AβPP/PS1 mice.
5093 23579860 A foldamer approach to targeting membrane bound helical states of islet amyloid polypeptide.
5094 23579860 A small molecule, protein mimetic based approach is shown to specifically inhibit lipid catalysed self-assembly of islet amyloid polypeptide (IAPP).
5095 23579860 A foldamer approach to targeting membrane bound helical states of islet amyloid polypeptide.
5096 23579860 A small molecule, protein mimetic based approach is shown to specifically inhibit lipid catalysed self-assembly of islet amyloid polypeptide (IAPP).
5097 23603201 Pharmacological agents, such as dipeptidyl peptidase-4 (DPP-4) inhibitors, which increase the level of glucagon-like peptide-1 (GLP-1) and ameliorate T2D, have become valuable candidates as disease modifying agents in the treatment of AD.
5098 23603201 In addition, endogenous GLP-1 levels decrease amyloid beta (Aβ) peptide and tau phosphorylation in AD.
5099 23603201 The effect of the DPP-4 inhibitor on hippocampal GLP-1 levels, Aβ burden, tau phosphorylation, inflammatory markers and memory retention were evaluated.
5100 23603201 The results reveal an attenuation of Aβ, tau phosphorylation and inflammatory markers and an improvement in hippocampal GLP-1 and memory retention following treatment.
5101 23603201 This remarkable therapeutic effect of Saxagliptin mediated through DPP-4 inhibition demonstrates a unique mechanism for Aβ and tau clearance by increasing GLP-1 levels and reverses the behavioural deficits and pathology observed in AD.
5102 23607096 Amylin is primarily responsible for classifying type II diabetes as an amyloid (protein misfolding) disease as it has great potential to aggregate into toxic nanoparticles, thereby resulting in loss of pancreatic β-cells.
5103 23611340 Deposition of human amylin or islet amyloid polypeptide (hIAPP) within the β-cells of the pancreatic islet of Langerhans is implicated in the etiology of type 2 diabetes mellitus (T2Dm).
5104 23707791 Pharmacological activation of AMPK suppresses inflammatory response evoked by IL-6 signalling in mouse liver and in human hepatocytes.
5105 23707791 Interleukin-6 (IL-6) induces inflammatory signalling in liver, leading to impaired insulin action in hepatocytes.
5106 23707791 In this study, we demonstrate that pharmacological activation of AMP-activated protein kinase (AMPK) represses IL-6-stimulated expression of proinflammatory markers serum amyloid A (Saa) as well as suppressor of cytokine signalling 3 (Socs3) in mouse liver.
5107 23707791 Further studies using the human hepatocellular carcinoma cell line HepG2 suggest that AMPK inhibits IL-6 signalling by repressing IL-6-stimulated phosphorylation of several downstream components of the pathway such as Janus kinase 1 (JAK1), SH2-domain containing protein tyrosine phosphatase 2 (SHP2) and signal transducer and activator of transcription 3 (STAT3).
5108 23707791 In summary, inhibition of IL-6 signalling cascade in liver by the metabolic master switch of the body, AMPK, supports the role of this kinase as a crucial point of convergence of metabolic and inflammatory pathways in hepatocytes.
5109 23707907 Evaluation of membrane models and their composition for islet amyloid polypeptide-membrane aggregation.
5110 23707907 Human islet amyloid polypeptide (IAPP) forms amyloid fibrils in the pancreatic islets of patients suffering from type 2 diabetes mellitus (T2DM).
5111 23707907 Evaluation of membrane models and their composition for islet amyloid polypeptide-membrane aggregation.
5112 23707907 Human islet amyloid polypeptide (IAPP) forms amyloid fibrils in the pancreatic islets of patients suffering from type 2 diabetes mellitus (T2DM).
5113 23713771 Molecular characterization of the hetero-assembly of β-amyloid peptide with islet amyloid polypeptide.
5114 23713771 We have recently identified in vitro a high affinity interaction between β-amyloid peptide (Aβ) of AD and islet amyloid polypeptide (IAPP) of T2D which results in the formation of non-fibrillar and non-cytotoxic Aβ-IAPP hetero-oligomers.
5115 23713771 Molecular characterization of the hetero-assembly of β-amyloid peptide with islet amyloid polypeptide.
5116 23713771 We have recently identified in vitro a high affinity interaction between β-amyloid peptide (Aβ) of AD and islet amyloid polypeptide (IAPP) of T2D which results in the formation of non-fibrillar and non-cytotoxic Aβ-IAPP hetero-oligomers.
5117 23719722 This phenomenon is accompanied by attenuated receptor expression of insulin and insulin-like growth factor, enhanced serine phosphorylation of insulin receptor substrate-1, and impaired transport of insulin across the blood-brain barrier.
5118 23719722 These results, in conjunction with the finding that insulin mitigates hippocampal synapse vulnerability to beta amyloid, a peptide thought to be causative in the development of AD, provide a strong rationale for hypothesizing that pharmacological strategies bolstering brain insulin signaling, such as intranasal administration of insulin, could have significant potential in the treatment and prevention of AD.
5119 23729543 Mutations in SLC29A3 lead to pigmentary hypertrichosis and non-autoimmune insulin-dependent diabetes mellitus (PHID) and H syndromes, familial Rosai-Dorfman disease, and histiocytosis-lymphadenopathy plus syndrome.
5120 23729543 PHID syndrome is a novel monogenic autoinflammatory syndrome (AIS) associated with severe elevation of serum amyloid.
5121 23729543 In contrast to other AIS, blockade of interleukin-1 and tumor necrosis-α was ineffective.
5122 23736544 The dipeptidyl peptidase-4 (DPP-4) inhibitor sitagliptin is an attractive therapy for diabetes, as it increases insulin release and may preserve β-cell mass.
5123 23736544 However, sitagliptin also increases β-cell release of human islet amyloid polypeptide (hIAPP), the peptide component of islet amyloid, which is cosecreted with insulin.
5124 23736544 Islet amyloid deposition, β-cell mass, insulin release, and measures of exocrine pancreas pathology were determined.
5125 23736544 The dipeptidyl peptidase-4 (DPP-4) inhibitor sitagliptin is an attractive therapy for diabetes, as it increases insulin release and may preserve β-cell mass.
5126 23736544 However, sitagliptin also increases β-cell release of human islet amyloid polypeptide (hIAPP), the peptide component of islet amyloid, which is cosecreted with insulin.
5127 23736544 Islet amyloid deposition, β-cell mass, insulin release, and measures of exocrine pancreas pathology were determined.
5128 23745697 Islet amyloid polypeptide and diabetes.
5129 23745697 Islet amyloid polypeptide (IAPP, amylin) is a 37 amino acid residue hormone expressed mainly by pancreatic islet beta cells and to less extent by some gastrointestinal endocrine cells and by certain regions in central nervous system.
5130 23745697 In these tissues calcitonin receptors and receptor activity-modifying proteins (RAMPs) 1 and 3, creating high affinity IAPP receptors have been identified.
5131 23745697 Islet amyloid polypeptide and diabetes.
5132 23745697 Islet amyloid polypeptide (IAPP, amylin) is a 37 amino acid residue hormone expressed mainly by pancreatic islet beta cells and to less extent by some gastrointestinal endocrine cells and by certain regions in central nervous system.
5133 23745697 In these tissues calcitonin receptors and receptor activity-modifying proteins (RAMPs) 1 and 3, creating high affinity IAPP receptors have been identified.
5134 23755253 In this study, we used molecular dynamics simulations to explore the effects of three kinds of carbon nanomaterials including graphene, carbon nanotube and C₆₀ on the aggregation behavior of islet amyloid polypeptide fragment 22-28 (IAPP₂₂₋₂₈).
5135 23758815 Human islet amyloid polypeptide (hIAPP) is highly amyloidogenic, whereas its homologs in rodents are non-amyloidogenic.
5136 23776068 In addition, for the first time, we identified several differentially regulated plasma proteins between healthy control and diabetic rats, including apolipoprotein E, fetuin B, α-1-acid glycoprotein, β-2-glycoprotein 1, 3-hydroxyanthranilate 3,4-dioxygenase, and serum amyloid P-component.
5137 23776430 Genetic associations of type 2 diabetes with islet amyloid polypeptide processing and degrading pathways in asian populations.
5138 23776430 Islet amyloid polypeptide (IAPP) is highly conserved and co-secreted with insulin with over 40% of autopsy cases of T2D showing islet amyloid formation due to IAPP aggregation.
5139 23776430 Amongst the tag SNPs, rs1583645 in carboxypeptidase E (CPE) and rs6583813 in insulin degrading enzyme (IDE) were associated with 1.09 to 1.28 fold increased risk of T2D (P Meta = 9.4×10(-3) and 0.02 respectively) in a meta-analysis of East Asians.
5140 23776430 Genetic associations of type 2 diabetes with islet amyloid polypeptide processing and degrading pathways in asian populations.
5141 23776430 Islet amyloid polypeptide (IAPP) is highly conserved and co-secreted with insulin with over 40% of autopsy cases of T2D showing islet amyloid formation due to IAPP aggregation.
5142 23776430 Amongst the tag SNPs, rs1583645 in carboxypeptidase E (CPE) and rs6583813 in insulin degrading enzyme (IDE) were associated with 1.09 to 1.28 fold increased risk of T2D (P Meta = 9.4×10(-3) and 0.02 respectively) in a meta-analysis of East Asians.
5143 23780880 Insulin, which can deposit at the injection sites in the treatment of diabetes, and islet amyloid polypeptide (IAPP), which can form amyloid fibrils in the islets of Langerhans in diabetes type 2, are kept nonaggregated by charge-based interactions with C-peptide at defined stoichiometries.
5144 23794448 Amylin deposition in the brain: A second amyloid in Alzheimer disease?
5145 23796517 Thermodynamic and structural determinants of differential Pdx1 binding to elements from the insulin and IAPP promoters.
5146 23796517 In adult mammals, the production of insulin and other peptide hormones, such as the islet amyloid polypeptide (IAPP), is limited to β-cells due to tissue-specific expression of a set of transcription factors, the best known of which is pancreatic duodenal homeobox protein 1 (Pdx1).
5147 23796517 Strikingly, while Pdx1 responsive elements in the human insulin promoter conform to the pentanucleotide 5'-CTAAT-3' sequence, the Pdx1 responsive elements in the human iapp promoter all contain a substitution to 5'-TTAAT-3'.
5148 23796517 Taken together, our results suggest a molecular mechanism for differential Pdx1 affinity to elements from the insulin and iapp promoter sequences.
5149 23798407 Here, we present a unique approach, based on combined analysis of four complementary relaxation-based NMR experiments, to probe directly the "dark" NMR-invisible state of the model, intrinsically disordered, polypeptide amyloid β (Aβ40) bound to GroEL.
5150 23812099 CD36 coordinates NLRP3 inflammasome activation by facilitating intracellular nucleation of soluble ligands into particulate ligands in sterile inflammation.
5151 23812099 Particulate ligands, including cholesterol crystals and amyloid fibrils, induce production of interleukin 1β (IL-1β) dependent on the cytoplasmic sensor NLRP3 in atherosclerosis, Alzheimer's disease and diabetes.
5152 23812099 Consequently, macrophages that lacked CD36 failed to elicit IL-1β production in response to those ligands, and targeting CD36 in atherosclerotic mice resulted in lower serum concentrations of IL-1β and accumulation of cholesterol crystals in plaques.
5153 23816568 Recent research has found that increased GSK3β activity is linked to the pathogenesis of AD through amyloid beta (Aβ), phosphorylated tau and mitochondrial dysfunction.
5154 23837729 1,3-Oxazines as BACE1 and/or BACE2 inhibitors: a patent evaluation (WO2012156284).
5155 23837729 This patent review covers the contents of Hoffman-La Roche and Siena Biotech's patent application WO2012156284 titled '1,3-Oxazines as BACE1 and/or BACE2 Inhibitors.'
5156 23837729 Beta-site amyloid precursor protein-converting enzyme (BACE1) and BACE2 activities are reported to support the claimed compounds' use as therapeutics for Alzheimer's disease and type II diabetes, respectively.
5157 23844373 Researchers have proposed that amyloid precursor protein 17 peptide (APP17 peptide), an active fragment of amyloid precursor protein (APP) in the nervous system, has therapeutic effects on neurodegeneration.
5158 23844373 Meanwhile, the insulin signaling was markedly increased as shown by increased phosphorylation of Akt and enhanced GLUT4 activation.
5159 23922768 The study presented here focuses on the self-association of the type-2 diabetes mellitus related human islet amyloid polypeptide (hIAPP) in various crowded environments including network-forming macromolecular crowding reagents and protein crowders.
5160 23927287 The human Islet Amyloid Polypeptide (hIAPP) is the major constituent of amyloid deposits in pancreatic islets of type-II diabetes.
5161 23952054 Here, we present evidence that two structurally and physiologically unrelated amyloidogenic peptides, the islet amyloid polypeptide (IAPP, the peptide comprising the amyloid aggregates in type II diabetes) and an amyloidogenic determinant of the prion protein (PrP), give rise to a significantly distinct fibrillation pathway when they are incubated together in the presence of membrane bilayers.
5162 23966942 Amylin (islet amyloid polypeptide) and amyloid-beta (Aβ) protein, which are deposited within pancreatic islets of diabetics and brains of Alzheimer's patients respectively, share many biophysical and physiological properties.
5163 23968537 Benzothiazole aniline tetra(ethylene glycol) and 3-amino-1,2,4-triazole inhibit neuroprotection against amyloid peptides by catalase overexpression in vitro.
5164 23968537 The antioxidant enzyme catalase is a neuroprotective amyloid binding protein.
5165 23968537 Herein the effects of catalase overexpression in SH-SY5Y neuronal cells on the toxicity of amyloid-β (Aβ), amyloid-Bri (ABri), amyloid-Dan (ADan), amylin (IAPP), and prion protein (PrP) peptides were determined.
5166 23968537 The catalase inhibitor 3-amino-1,2,4-triazole (3-AT) and catalase-amyloid interaction inhibitor benzothiazole aniline tetra(ethylene glycol) (BTA-EG4) significantly enhanced neurotoxicity of amyloid peptides in catalase overexpressing neuronal cells.
5167 23968537 Kisspeptin 45-50 had additive neuroprotective actions against the Aβ peptide in catalase overexpressing cells.
5168 23968537 Use of BTA-EG4, or compounds that inhibit catalase binding to amyloid peptides, as potential therapeutics for Neurodegenerative diseases may therefore result in unwanted effects.
5169 23968537 Benzothiazole aniline tetra(ethylene glycol) and 3-amino-1,2,4-triazole inhibit neuroprotection against amyloid peptides by catalase overexpression in vitro.
5170 23968537 The antioxidant enzyme catalase is a neuroprotective amyloid binding protein.
5171 23968537 Herein the effects of catalase overexpression in SH-SY5Y neuronal cells on the toxicity of amyloid-β (Aβ), amyloid-Bri (ABri), amyloid-Dan (ADan), amylin (IAPP), and prion protein (PrP) peptides were determined.
5172 23968537 The catalase inhibitor 3-amino-1,2,4-triazole (3-AT) and catalase-amyloid interaction inhibitor benzothiazole aniline tetra(ethylene glycol) (BTA-EG4) significantly enhanced neurotoxicity of amyloid peptides in catalase overexpressing neuronal cells.
5173 23968537 Kisspeptin 45-50 had additive neuroprotective actions against the Aβ peptide in catalase overexpressing cells.
5174 23968537 Use of BTA-EG4, or compounds that inhibit catalase binding to amyloid peptides, as potential therapeutics for Neurodegenerative diseases may therefore result in unwanted effects.
5175 23968537 Benzothiazole aniline tetra(ethylene glycol) and 3-amino-1,2,4-triazole inhibit neuroprotection against amyloid peptides by catalase overexpression in vitro.
5176 23968537 The antioxidant enzyme catalase is a neuroprotective amyloid binding protein.
5177 23968537 Herein the effects of catalase overexpression in SH-SY5Y neuronal cells on the toxicity of amyloid-β (Aβ), amyloid-Bri (ABri), amyloid-Dan (ADan), amylin (IAPP), and prion protein (PrP) peptides were determined.
5178 23968537 The catalase inhibitor 3-amino-1,2,4-triazole (3-AT) and catalase-amyloid interaction inhibitor benzothiazole aniline tetra(ethylene glycol) (BTA-EG4) significantly enhanced neurotoxicity of amyloid peptides in catalase overexpressing neuronal cells.
5179 23968537 Kisspeptin 45-50 had additive neuroprotective actions against the Aβ peptide in catalase overexpressing cells.
5180 23968537 Use of BTA-EG4, or compounds that inhibit catalase binding to amyloid peptides, as potential therapeutics for Neurodegenerative diseases may therefore result in unwanted effects.
5181 23968537 Benzothiazole aniline tetra(ethylene glycol) and 3-amino-1,2,4-triazole inhibit neuroprotection against amyloid peptides by catalase overexpression in vitro.
5182 23968537 The antioxidant enzyme catalase is a neuroprotective amyloid binding protein.
5183 23968537 Herein the effects of catalase overexpression in SH-SY5Y neuronal cells on the toxicity of amyloid-β (Aβ), amyloid-Bri (ABri), amyloid-Dan (ADan), amylin (IAPP), and prion protein (PrP) peptides were determined.
5184 23968537 The catalase inhibitor 3-amino-1,2,4-triazole (3-AT) and catalase-amyloid interaction inhibitor benzothiazole aniline tetra(ethylene glycol) (BTA-EG4) significantly enhanced neurotoxicity of amyloid peptides in catalase overexpressing neuronal cells.
5185 23968537 Kisspeptin 45-50 had additive neuroprotective actions against the Aβ peptide in catalase overexpressing cells.
5186 23968537 Use of BTA-EG4, or compounds that inhibit catalase binding to amyloid peptides, as potential therapeutics for Neurodegenerative diseases may therefore result in unwanted effects.
5187 23973293 Liraglutide can reverse memory impairment, synaptic loss and reduce plaque load in aged APP/PS1 mice, a model of Alzheimer's disease.
5188 23973293 The incretin hormone Glucagon-like peptide-1 (GLP-1) facilitates insulin signalling, and long-lasting analogues such as liraglutide (Victoza(®)) are on the market as type 2 diabetes treatments.
5189 23973293 We have previously shown that liraglutide improved cognitive function, reduced amyloid plaque deposition, inflammation, overall APP and oligomer levels and enhanced LTP when injected peripherally for two months in 7 month old APPswe/PS1ΔE9 (APP/PS1) mice.
5190 23973293 Accordingly, 14-month-old APP/PS1 and littermate control mice were injected with Liraglutide (25 nmol/kg bw) ip. for 2 months.
5191 23973293 Spatial memory was improved by Liraglutide-treatment in APP/PS1 mice compared with APP/PS1 saline-treated mice.
5192 23973293 LTP was significantly enhanced in APP/PS1 liraglutide-treated mice compared with APP/PS1 saline mice, corroborated with increased synapse numbers in hippocampus and cortex.
5193 23973293 Total brain APP and beta-amyloid oligomer levels were reduced in Liraglutide-treated APP/PS1 mice while IDE levels were increased.
5194 23994331 Serum amyloid A is independently related to apolipoprotein A-I but not to HDL-cholesterol in patients with angina pectoris.
5195 24010666 The formation of human islet amyloid polypeptide (hIAPP) is implicated in the loss of pancreatic β-cells in type II diabetes.
5196 24015785 Using thioflavin T fluorescence and electron microscopy, we demonstrate that the outcome of seeding on human islet amyloid polypeptide amyloidogenesis is dependent upon whether the AWI is present or absent and is dictated by seed type.
5197 17609417 Insulin facilitates the hepatic clearance of plasma amyloid beta-peptide (1 40) by intracellular translocation of low-density lipoprotein receptor-related protein 1 (LRP-1) to the plasma membrane in hepatocytes.
5198 17609417 The hepatic clearance of amyloid beta-peptide (1-40) [Abeta(1-40)] from plasma, which is largely mediated by low-density lipoprotein receptor-related protein (LRP-1), is suggested to play a role in preventing Abeta(1-40) accumulation in the brain.
5199 17609417 Epidemiological investigations suggest a high incidence of cerebral Abeta deposition in insulin-resistant type II diabetes mellitus.
5200 17609417 The purpose of this study was to clarify the effect of insulin on the hepatic clearance of Abeta(1-40).
5201 17609417 LRP-1 expression on the hepatic plasma membrane was increased in a time-dependent manner by portal infusion of insulin and was 2.2-fold greater than that in nontreated controls after a 10-min infusion, whereas the expression in whole lysate was not affected by insulin treatment.
5202 17609417 The apparent hepatic uptake of [(125)I]Abeta(1-40) was also induced by insulin in a time-dependent manner.
5203 17609417 The increase in [(125)I]Abeta(1-40) uptake by insulin was concentration-dependent (EC(50) = 230 pM) and was completely abolished by receptor-associated protein (2 muM), an LRP-1 inhibitor.
5204 17609417 In conclusion, plasma insulin facilitates LRP-1 translocation to the hepatic plasma membrane from the intracellular pool, resulting in significant enhancement of hepatic Abeta(1-40) uptake from the circulating blood.
5205 17609417 Insulin facilitates the hepatic clearance of plasma amyloid beta-peptide (1 40) by intracellular translocation of low-density lipoprotein receptor-related protein 1 (LRP-1) to the plasma membrane in hepatocytes.
5206 17609417 The hepatic clearance of amyloid beta-peptide (1-40) [Abeta(1-40)] from plasma, which is largely mediated by low-density lipoprotein receptor-related protein (LRP-1), is suggested to play a role in preventing Abeta(1-40) accumulation in the brain.
5207 17609417 Epidemiological investigations suggest a high incidence of cerebral Abeta deposition in insulin-resistant type II diabetes mellitus.
5208 17609417 The purpose of this study was to clarify the effect of insulin on the hepatic clearance of Abeta(1-40).
5209 17609417 LRP-1 expression on the hepatic plasma membrane was increased in a time-dependent manner by portal infusion of insulin and was 2.2-fold greater than that in nontreated controls after a 10-min infusion, whereas the expression in whole lysate was not affected by insulin treatment.
5210 17609417 The apparent hepatic uptake of [(125)I]Abeta(1-40) was also induced by insulin in a time-dependent manner.
5211 17609417 The increase in [(125)I]Abeta(1-40) uptake by insulin was concentration-dependent (EC(50) = 230 pM) and was completely abolished by receptor-associated protein (2 muM), an LRP-1 inhibitor.
5212 17609417 In conclusion, plasma insulin facilitates LRP-1 translocation to the hepatic plasma membrane from the intracellular pool, resulting in significant enhancement of hepatic Abeta(1-40) uptake from the circulating blood.