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Gene Information

Gene symbol: NOX5

Gene name: NADPH oxidase, EF-hand calcium binding domain 5

HGNC ID: 14874

Synonyms: NOX5A, NOX5B

Related Genes

# Gene Symbol Number of hits
1 ACE 1 hits
2 ADAM17 1 hits
3 ADCY10 1 hits
4 ADIPOQ 1 hits
5 ADM 1 hits
6 AGT 1 hits
7 AGTR1 1 hits
8 AGTR2 1 hits
9 AKT1 1 hits
10 ALB 1 hits
11 ALOX12 1 hits
12 APOC3 1 hits
13 APOE 1 hits
14 ATP6AP2 1 hits
15 BAX 1 hits
16 CALCA 1 hits
17 CASP3 1 hits
18 CAT 1 hits
19 CCL2 1 hits
20 CD33 1 hits
21 CD34 1 hits
22 CD68 1 hits
23 CEACAM1 1 hits
24 CLEC11A 1 hits
25 COL1A1 1 hits
26 COL4A4 1 hits
27 CRP 1 hits
28 CTSB 1 hits
29 CTSC 1 hits
30 CX3CL1 1 hits
31 CYBA 1 hits
32 CYBB 1 hits
33 DDIT3 1 hits
34 DUOX1 1 hits
35 DYNC1H1 1 hits
36 EDN1 1 hits
37 EIF2AK2 1 hits
38 EIF2AK3 1 hits
39 EPHB2 1 hits
40 EPHX2 1 hits
41 EPO 1 hits
42 FABP2 1 hits
43 FBXO32 1 hits
44 FOS 1 hits
45 FSHB 1 hits
46 G6PD 1 hits
47 GCG 1 hits
48 GIP 1 hits
49 GJA1 1 hits
50 GLI2 1 hits
51 GORASP1 1 hits
52 GPX4 1 hits
53 HIF1A 1 hits
54 HLA-A 1 hits
55 HMGB1 1 hits
56 HMGCR 1 hits
57 HMOX1 1 hits
58 HSPA5 1 hits
59 IL10 1 hits
60 IL6 1 hits
61 IL8 1 hits
62 ING1 1 hits
63 INS 1 hits
64 INSR 1 hits
65 IRS1 1 hits
66 ITGAM 1 hits
67 KDR 1 hits
68 LPAL2 1 hits
69 MAPK1 1 hits
70 MAPK14 1 hits
71 MAPK3 1 hits
72 MAPK8 1 hits
73 MMP9 1 hits
74 MPO 1 hits
75 MYH14 1 hits
76 MYH7 1 hits
77 NAMPT 1 hits
78 NCF1 1 hits
79 NCF2 1 hits
80 NDC80 1 hits
81 NFE2 1 hits
82 NFE2L2 1 hits
83 NFKB1 1 hits
84 NOS1 1 hits
85 NOS2A 1 hits
86 NOS3 1 hits
87 NOX1 1 hits
88 NOX4 1 hits
89 OLR1 1 hits
90 PARP1 1 hits
91 PCK2 1 hits
92 PI3 1 hits
93 PIK3CA 1 hits
94 PLA2G1B 1 hits
95 PLA2G7 1 hits
96 PLN 1 hits
97 PON1 1 hits
98 PON2 1 hits
99 PPARA 1 hits
100 PPARG 1 hits
101 PPP1R3C 1 hits
102 PPP2R4 1 hits
103 PRKAA1 1 hits
104 PRKAA2 1 hits
105 PRKCA 1 hits
106 PRKCB1 1 hits
107 PTGS2 1 hits
108 PTPN11 1 hits
109 PTPN6 1 hits
110 PVRL1 1 hits
111 RAC1 1 hits
112 RAF1 1 hits
113 RB1CC1 1 hits
114 RBP4 1 hits
115 REN 1 hits
116 RETN 1 hits
117 RORC 1 hits
118 RPS6KB1 1 hits
119 SAA 1 hits
120 SERPINE1 1 hits
121 SERPINF1 1 hits
122 SETD2 1 hits
123 SHC1 1 hits
124 SOD1 1 hits
125 SOD3 1 hits
126 SPI1 1 hits
127 SPP1 1 hits
128 SRC 1 hits
129 STAT1 1 hits
130 STAT3 1 hits
131 STN 1 hits
132 SYTL1 1 hits
133 TBXAS1 1 hits
134 TGFA 1 hits
135 TGFB1 1 hits
136 TGM2 1 hits
137 THBD 1 hits
138 TIMP3 1 hits
139 TIPARP 1 hits
140 TJP1 1 hits
141 TLR4 1 hits
142 TNF 1 hits
143 TP53 1 hits
144 TPO 1 hits
145 TRAF2 1 hits
146 TRPC6 1 hits
147 TSC2 1 hits
148 TXN 1 hits
149 UCP1 1 hits
150 UCP2 1 hits
151 UCP3 1 hits
152 UTS2 1 hits
153 VCAM1 1 hits
154 VEGFA 1 hits
155 XDH 1 hits

Related Sentences

# PMID Sentence
1 1473571 The reactive oxygen compounds are produced, in a process called the 'respiratory burst', by the NADPH oxidase complex in plasma membranes, and by myeloperoxidase in phagolysosomes after degranulation.
2 8978321 p22phox mRNA expression and NADPH oxidase activity are increased in aortas from hypertensive rats.
3 8978321 To investigate the mechanism responsible for this increased oxidase activity, we examined p22phox mRNA expression in rats made hypertensive by implanting an osmotic minipump that delivered Ang II (0.7 mg/kg per day).
4 8978321 Furthermore, infusion of recombinant heparin-binding superoxide dismutase decreased both blood pressure and p22phox mRNA expression.
5 8978321 These findings suggest that Ang II-induced hypertension activates the NADPH/NADH oxidase system by upregulating mRNA levels of one or several components of this oxidase system, including the p22phox, and that the NADPH/NADH oxidase system is associated with the pathology of hypertension in vivo.
6 8981000 A new approach was stimulated by the finding that thyroid cells were able to iodinate polyunsaturated fatty acids to form iodolactones and by the identification of alpha-iodohexadecanal (alpha-IHDA) as the major compound of an iodolipid fraction. alpha-IHDA exerts multiple inhibitory effects on adenylate cyclase, NADPH-oxidase and thyroid peroxidase.
7 8981000 Meanwhile 6-iodo-5-hydroxy-8,11,14-eicosatrienoic acid delta-lactone (delta-iodolactone) has been identified in human thyroid tissue and it could be demonstrated that this iodoeicosanoid specifically inhibits signal transduction pathways induced by local growth factors such as epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF).
8 10442048 In addition, the message level of p22-phox as the active center of NADPH oxidase, was slightly increased.
9 10588373 The O2- production in the aortas of both high fructose-fed and insulin-treated rats was mediated through activation of NADH/NADPH oxidase.
10 10588373 These results indicate that relative excess of O2- production through activation of NADH/NADPH oxidase over NO generation in endothelial cells may contribute to impaired endothelial-dependent relaxation in insulin-resistant state.
11 10588373 The O2- production in the aortas of both high fructose-fed and insulin-treated rats was mediated through activation of NADH/NADPH oxidase.
12 10588373 These results indicate that relative excess of O2- production through activation of NADH/NADPH oxidase over NO generation in endothelial cells may contribute to impaired endothelial-dependent relaxation in insulin-resistant state.
13 10670582 P47(phox)-deficient NADPH oxidase defect in neutrophils of diabetic mouse strains, C57BL/6J-m db/db and db/+.
14 10670582 Deficiencies in neutrophil NADPH oxidase proteins have been demonstrated in humans with chronic granulomatous disease.
15 10670582 These results indicate that the C57BL/6J-m db/db and db/+ mice are the first spontaneously derived murine model of NADPH oxidase deficiency involving a p47(phox) mutation.
16 10670582 P47(phox)-deficient NADPH oxidase defect in neutrophils of diabetic mouse strains, C57BL/6J-m db/db and db/+.
17 10670582 Deficiencies in neutrophil NADPH oxidase proteins have been demonstrated in humans with chronic granulomatous disease.
18 10670582 These results indicate that the C57BL/6J-m db/db and db/+ mice are the first spontaneously derived murine model of NADPH oxidase deficiency involving a p47(phox) mutation.
19 10670582 P47(phox)-deficient NADPH oxidase defect in neutrophils of diabetic mouse strains, C57BL/6J-m db/db and db/+.
20 10670582 Deficiencies in neutrophil NADPH oxidase proteins have been demonstrated in humans with chronic granulomatous disease.
21 10670582 These results indicate that the C57BL/6J-m db/db and db/+ mice are the first spontaneously derived murine model of NADPH oxidase deficiency involving a p47(phox) mutation.
22 10869423 Renox is homologous to gp91(phox) (91-kDa subunit of the phagocyte oxidase), the electron-transporting subunit of phagocytic NADPH oxidase, and contains all of the structural motifs considered essential for binding of heme, flavin, and nucleotide.
23 10879682 Three enzyme systems produce reactive oxygen species in the vascular wall: NADH/NADPH oxidase, xanthine oxidoreductase, and endothelial nitric oxide synthase.
24 10946914 To elucidate the relationship between nutrition and ROS generation, we have investigated the effect of glucose challenge on ROS generation by leucocytes, p47phox protein, a key protein in the enzyme NADPH oxidase and alpha-tocopherol levels.
25 11064109 The enzymes tested were dipeptidyl-peptidase I (DPP-I), cathepsin B and D, NADPH oxidase and superoxide dismutase (oxidative burst) and collagenase.
26 11064109 Enzyme activity of cathepsin B and D in all cell subsets, oxidative burst in PMN cells, and DPP-I in lymphocytes and monocytes from patients, was higher than those from healthy females (P<0.05).
27 11073878 Among many enzymatic systems that are capable of producing ROS, xanthine oxidase, NADH/NADPH oxidase, and uncoupled endothelial nitric oxide synthase have been extensively studied in vascular cells.
28 11157681 Incubation of endothelial cells in vitro with high concentrations of glucose activates protein kinase C (PKC) and increases nitric oxide synthase (NOS III) gene expression as well as superoxide production.
29 11157681 Similarly, we found an activation of the NADPH oxidase and a 7-fold increase in gp91(phox) mRNA in diabetic vessels.
30 11287350 Consistent with an important role for NADPH oxidase, although macrophages derived from wild-type mice expressed enhanced levels of tissue factor upon stimulation with AGE, macrophages derived from mice deficient in a central subunit of NADPH oxidase, gp91phox, failed to display enhanced tissue factor in the presence of AGE.
31 11319715 In this study, we have investigated the effect of hydrocortisone on p47(phox) subunit, a key component of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, in MNC and the pharmacodynamics of this effect with ROS generation and plasma IL-10 levels. p47(phox) subunit protein levels in MNC showed a progressive decrease after hydrocortisone administration.
32 11812741 We found that the SOD mimic significantly inhibited antigen-presenting cell-dependent T-cell proliferation and IFN-gamma production in vitro.
33 11812741 In addition, pretreatment of lipopolysaccharide (LPS)-stimulated peritoneal macrophages with SOD mimic inhibited the LPS-dependent increase in TNF-alpha as well as the NADPH oxidase-dependent release of superoxide.
34 11959796 The expression of the p22phox mRNA for the NADH/NADPH oxidase subunit was significantly increased in STZ-induced diabetic rats and this increase was completely prevented by chronic administration of J-104132. 7.
35 12006386 The overexpression of dominant-negative p47phox in A10 cells suppressed lysoPC-induced ERK activation.
36 12006386 The ROS-dependent ERK activation by lysoPC seems to involve protein kinase C- and Ras-dependent raf-1 activation.
37 12006386 Induction of c-fos expression and enhanced AP-1 binding activity by lysoPC were also inhibited by DPI and NAC.
38 12006386 Taken together, these data suggest that ROS generated by NADH/NADPH oxidase contribute to lysoPC-induced activation of ERK1/2 and subsequent growth promotion in VSMCs.
39 12351446 O(2)(-) release, protein kinase C (PKC) activity, and translocation of PKC-alpha and -betaII and p47phox were increased in THP-1 cells (human monocytic cell line) under HG (15 mmol/l glucose) conditions, whereas AT supplementation inhibited these changes.
40 12351446 AT, NADPH oxidase inhibitors (apocynin and diphenyleneiodonium chloride [DPI]), and an inhibitor to PKC-alpha and other isoforms (2,2',3,3',4,4'-hexahydroxy-1,1'-biphenyl-6,6'-dimethanol dimethyl ether [HBDDE]) but not PKC-beta II (LY379196) decreased O(2)(-) release and p47phox translocation.
41 12351446 Antisense oligodeoxynucleotides to PKC-alpha and p47phox but not to PKC-betaII inhibited HG-induced O(2)(-) release and p47phox translocation in THP-1 cells.
42 12351446 We conclude that under HG conditions, monocytic O(2)(-) release is dependent on NADPH oxidase activity but not the mitochondrial respiratory chain; HG-induced O(2)(-) release is triggered by PKC-alpha, and AT inhibits O(2)(-) release via inhibition of PKC-alpha.
43 12351446 O(2)(-) release, protein kinase C (PKC) activity, and translocation of PKC-alpha and -betaII and p47phox were increased in THP-1 cells (human monocytic cell line) under HG (15 mmol/l glucose) conditions, whereas AT supplementation inhibited these changes.
44 12351446 AT, NADPH oxidase inhibitors (apocynin and diphenyleneiodonium chloride [DPI]), and an inhibitor to PKC-alpha and other isoforms (2,2',3,3',4,4'-hexahydroxy-1,1'-biphenyl-6,6'-dimethanol dimethyl ether [HBDDE]) but not PKC-beta II (LY379196) decreased O(2)(-) release and p47phox translocation.
45 12351446 Antisense oligodeoxynucleotides to PKC-alpha and p47phox but not to PKC-betaII inhibited HG-induced O(2)(-) release and p47phox translocation in THP-1 cells.
46 12351446 We conclude that under HG conditions, monocytic O(2)(-) release is dependent on NADPH oxidase activity but not the mitochondrial respiratory chain; HG-induced O(2)(-) release is triggered by PKC-alpha, and AT inhibits O(2)(-) release via inhibition of PKC-alpha.
47 12401719 The receptor for AGEs, gene expression of the membrane-bound NADPH oxidase subunit gp91phox, and nuclear transcription factor-kappaB were all increased by diabetes but remained unaffected by either treatment regimen.
48 12679469 Monocyte NADPH oxidase subunit p22(phox) and inducible hemeoxygenase-1 gene expressions are increased in type II diabetic patients: relationship with oxidative stress.
49 12679469 We determined whether in type 2 diabetes mononuclear cells, NADPH oxidase and the inducible hemeoxygenase (HO-1) gene expressions are activated.
50 12679469 In monocytes from 25 outpatients with type 2 diabetes, p22(phox) gene expression was higher (0.71 +/- 0.09 p22(phox)/beta-actin gene expression ratio) than that observed in 19 controls (0.56 +/- 0.09, P < 0.001).
51 12679469 Similarly, HO-1 gene expression was significantly higher in diabetic patients (0.77 +/- 0.12 HO-1/beta-actin gene expression ratio) than in controls (0.41 +/- 0.14, P < 0.001).
52 12679469 The p22(phox) and HO-1 gene expressions were also determined during (plasma glucose 363 +/- 40 mg/dl) and after (125 +/- 11 mg/dl) metabolic decompensation in 10 type 2 diabetic patients.
53 12679469 The correction of the metabolic milieu was associated with a 19% +/- 3% (P < 0.01) and 30% +/- 3% (P < 0.01) decrease in the p22(phox) and HO-1 gene expressions, respectively.
54 12679469 Decompensated type 2 diabetes is associated with increased p22(phox) and HO-1 gene expressions in circulating monocytes; the metabolic normalization reduces but does not normalize this activation.
55 12679469 Monocyte NADPH oxidase subunit p22(phox) and inducible hemeoxygenase-1 gene expressions are increased in type II diabetic patients: relationship with oxidative stress.
56 12679469 We determined whether in type 2 diabetes mononuclear cells, NADPH oxidase and the inducible hemeoxygenase (HO-1) gene expressions are activated.
57 12679469 In monocytes from 25 outpatients with type 2 diabetes, p22(phox) gene expression was higher (0.71 +/- 0.09 p22(phox)/beta-actin gene expression ratio) than that observed in 19 controls (0.56 +/- 0.09, P < 0.001).
58 12679469 Similarly, HO-1 gene expression was significantly higher in diabetic patients (0.77 +/- 0.12 HO-1/beta-actin gene expression ratio) than in controls (0.41 +/- 0.14, P < 0.001).
59 12679469 The p22(phox) and HO-1 gene expressions were also determined during (plasma glucose 363 +/- 40 mg/dl) and after (125 +/- 11 mg/dl) metabolic decompensation in 10 type 2 diabetic patients.
60 12679469 The correction of the metabolic milieu was associated with a 19% +/- 3% (P < 0.01) and 30% +/- 3% (P < 0.01) decrease in the p22(phox) and HO-1 gene expressions, respectively.
61 12679469 Decompensated type 2 diabetes is associated with increased p22(phox) and HO-1 gene expressions in circulating monocytes; the metabolic normalization reduces but does not normalize this activation.
62 12800095 Protein-tyrosine phosphatases (PTPases), in particular PTP1B, have been shown to modulate insulin signal transduction in liver and skeletal muscle in animal models; however, their role in human adipose tissue remains unclear.
63 12800095 The endogenous total PTPase activity also strongly correlated with insulin-stimulated glucose uptake (R =.89, P <.0001); however, the activity of PTP1B was unrelated to the level of glucose uptake.
64 12800095 Cellular treatment with diphenyleneiodonium (DPI), an NADPH oxidase inhibitor that blocks the cellular generation of H(2)O(2) and reduces the insulin-induced reduction of cellular PTPase activity, also diminished insulin-stimulated glucose uptake by 82% (P =.001).
65 12800095 These data suggest that total cellular PTPase activity, but not the activity of PTP1B, is higher in more obese subjects and is negatively associated with insulin-stimulated glucose transport.
66 12821678 High glucose-suppressed endothelin-1 Ca2+ signaling via NADPH oxidase and diacylglycerol-sensitive protein kinase C isozymes in mesangial cells.
67 12821678 We hypothesized that in HG an interaction between ROS generation, from NADPH oxidase, and PKC suppresses mesangial Ca2+ signaling in response to endothelin-1 (ET-1).
68 12821678 Furthermore, overexpression of conventional PKC-beta or novel PKC-delta in NG diminished the [Ca2+]i response to ET-1, reflecting the condition observed in HG.
69 12821678 Likewise, catalase or p47phox antisense oligonucleotide normalized the [Ca2+]i response to ET-1 in HG to 521 +/- 58 nM and 514 +/- 48 nM, respectively.
70 12821678 Detection of increased intracellular ROS in HG by dichlorofluorescein was inhibited by catalase, diphenyleneiodonium, or p47phox antisense oligonucleotide.
71 12821678 Thus, mesangial cell [Ca2+]i signaling in response to ET-1 in HG is attenuated through an interaction mechanism between NADPH oxidase ROS production and diacylglycerol-sensitive PKC.
72 12821678 High glucose-suppressed endothelin-1 Ca2+ signaling via NADPH oxidase and diacylglycerol-sensitive protein kinase C isozymes in mesangial cells.
73 12821678 We hypothesized that in HG an interaction between ROS generation, from NADPH oxidase, and PKC suppresses mesangial Ca2+ signaling in response to endothelin-1 (ET-1).
74 12821678 Furthermore, overexpression of conventional PKC-beta or novel PKC-delta in NG diminished the [Ca2+]i response to ET-1, reflecting the condition observed in HG.
75 12821678 Likewise, catalase or p47phox antisense oligonucleotide normalized the [Ca2+]i response to ET-1 in HG to 521 +/- 58 nM and 514 +/- 48 nM, respectively.
76 12821678 Detection of increased intracellular ROS in HG by dichlorofluorescein was inhibited by catalase, diphenyleneiodonium, or p47phox antisense oligonucleotide.
77 12821678 Thus, mesangial cell [Ca2+]i signaling in response to ET-1 in HG is attenuated through an interaction mechanism between NADPH oxidase ROS production and diacylglycerol-sensitive PKC.
78 12821678 High glucose-suppressed endothelin-1 Ca2+ signaling via NADPH oxidase and diacylglycerol-sensitive protein kinase C isozymes in mesangial cells.
79 12821678 We hypothesized that in HG an interaction between ROS generation, from NADPH oxidase, and PKC suppresses mesangial Ca2+ signaling in response to endothelin-1 (ET-1).
80 12821678 Furthermore, overexpression of conventional PKC-beta or novel PKC-delta in NG diminished the [Ca2+]i response to ET-1, reflecting the condition observed in HG.
81 12821678 Likewise, catalase or p47phox antisense oligonucleotide normalized the [Ca2+]i response to ET-1 in HG to 521 +/- 58 nM and 514 +/- 48 nM, respectively.
82 12821678 Detection of increased intracellular ROS in HG by dichlorofluorescein was inhibited by catalase, diphenyleneiodonium, or p47phox antisense oligonucleotide.
83 12821678 Thus, mesangial cell [Ca2+]i signaling in response to ET-1 in HG is attenuated through an interaction mechanism between NADPH oxidase ROS production and diacylglycerol-sensitive PKC.
84 12847113 AT1 blockade prevents glucose-induced cardiac dysfunction in ventricular myocytes: role of the AT1 receptor and NADPH oxidase.
85 12847113 This study examined the effect of blocking the Ang II type 1 (AT1) receptor on high glucose-induced cardiac contractile dysfunction.
86 12847113 Interestingly, the HG-induced abnormalities were prevented with the AT1 blocker L-158,809 (10 to 1000 nmol/L) but not the Janus kinase-2 (JAK2) inhibitor AG-490 (10 to 100 micromol/L).
87 12847113 AT1 antagonist-elicited cardiac protection against HG was nullified by the NADPH oxidase activator sodium dodecyl sulfate (80 micromol/L) and mimicked by the NADPH oxidase inhibitors diphenyleneiodonium (10 micromol/L) or apocynin (100 micromol/L).
88 12847113 Western blot analysis confirmed that the protein abundance of NADPH oxidase subunit p47phox and the AT1 but not the AT2 receptor was enhanced in HG myocytes.
89 12847113 Enhanced reactive oxygen species production observed in HG myocytes was prevented by AT1 blockade or NADPH oxidase inhibition.
90 12847113 Collectively, our data suggest that local Ang II, acting via AT1 receptor-mediated NADPH oxidase activation, is involved in hyperglycemia-induced cardiomyocyte dysfunction, which might play a role in diabetic cardiomyopathy.
91 12847113 AT1 blockade prevents glucose-induced cardiac dysfunction in ventricular myocytes: role of the AT1 receptor and NADPH oxidase.
92 12847113 This study examined the effect of blocking the Ang II type 1 (AT1) receptor on high glucose-induced cardiac contractile dysfunction.
93 12847113 Interestingly, the HG-induced abnormalities were prevented with the AT1 blocker L-158,809 (10 to 1000 nmol/L) but not the Janus kinase-2 (JAK2) inhibitor AG-490 (10 to 100 micromol/L).
94 12847113 AT1 antagonist-elicited cardiac protection against HG was nullified by the NADPH oxidase activator sodium dodecyl sulfate (80 micromol/L) and mimicked by the NADPH oxidase inhibitors diphenyleneiodonium (10 micromol/L) or apocynin (100 micromol/L).
95 12847113 Western blot analysis confirmed that the protein abundance of NADPH oxidase subunit p47phox and the AT1 but not the AT2 receptor was enhanced in HG myocytes.
96 12847113 Enhanced reactive oxygen species production observed in HG myocytes was prevented by AT1 blockade or NADPH oxidase inhibition.
97 12847113 Collectively, our data suggest that local Ang II, acting via AT1 receptor-mediated NADPH oxidase activation, is involved in hyperglycemia-induced cardiomyocyte dysfunction, which might play a role in diabetic cardiomyopathy.
98 12847113 AT1 blockade prevents glucose-induced cardiac dysfunction in ventricular myocytes: role of the AT1 receptor and NADPH oxidase.
99 12847113 This study examined the effect of blocking the Ang II type 1 (AT1) receptor on high glucose-induced cardiac contractile dysfunction.
100 12847113 Interestingly, the HG-induced abnormalities were prevented with the AT1 blocker L-158,809 (10 to 1000 nmol/L) but not the Janus kinase-2 (JAK2) inhibitor AG-490 (10 to 100 micromol/L).
101 12847113 AT1 antagonist-elicited cardiac protection against HG was nullified by the NADPH oxidase activator sodium dodecyl sulfate (80 micromol/L) and mimicked by the NADPH oxidase inhibitors diphenyleneiodonium (10 micromol/L) or apocynin (100 micromol/L).
102 12847113 Western blot analysis confirmed that the protein abundance of NADPH oxidase subunit p47phox and the AT1 but not the AT2 receptor was enhanced in HG myocytes.
103 12847113 Enhanced reactive oxygen species production observed in HG myocytes was prevented by AT1 blockade or NADPH oxidase inhibition.
104 12847113 Collectively, our data suggest that local Ang II, acting via AT1 receptor-mediated NADPH oxidase activation, is involved in hyperglycemia-induced cardiomyocyte dysfunction, which might play a role in diabetic cardiomyopathy.
105 12847113 AT1 blockade prevents glucose-induced cardiac dysfunction in ventricular myocytes: role of the AT1 receptor and NADPH oxidase.
106 12847113 This study examined the effect of blocking the Ang II type 1 (AT1) receptor on high glucose-induced cardiac contractile dysfunction.
107 12847113 Interestingly, the HG-induced abnormalities were prevented with the AT1 blocker L-158,809 (10 to 1000 nmol/L) but not the Janus kinase-2 (JAK2) inhibitor AG-490 (10 to 100 micromol/L).
108 12847113 AT1 antagonist-elicited cardiac protection against HG was nullified by the NADPH oxidase activator sodium dodecyl sulfate (80 micromol/L) and mimicked by the NADPH oxidase inhibitors diphenyleneiodonium (10 micromol/L) or apocynin (100 micromol/L).
109 12847113 Western blot analysis confirmed that the protein abundance of NADPH oxidase subunit p47phox and the AT1 but not the AT2 receptor was enhanced in HG myocytes.
110 12847113 Enhanced reactive oxygen species production observed in HG myocytes was prevented by AT1 blockade or NADPH oxidase inhibition.
111 12847113 Collectively, our data suggest that local Ang II, acting via AT1 receptor-mediated NADPH oxidase activation, is involved in hyperglycemia-induced cardiomyocyte dysfunction, which might play a role in diabetic cardiomyopathy.
112 12847113 AT1 blockade prevents glucose-induced cardiac dysfunction in ventricular myocytes: role of the AT1 receptor and NADPH oxidase.
113 12847113 This study examined the effect of blocking the Ang II type 1 (AT1) receptor on high glucose-induced cardiac contractile dysfunction.
114 12847113 Interestingly, the HG-induced abnormalities were prevented with the AT1 blocker L-158,809 (10 to 1000 nmol/L) but not the Janus kinase-2 (JAK2) inhibitor AG-490 (10 to 100 micromol/L).
115 12847113 AT1 antagonist-elicited cardiac protection against HG was nullified by the NADPH oxidase activator sodium dodecyl sulfate (80 micromol/L) and mimicked by the NADPH oxidase inhibitors diphenyleneiodonium (10 micromol/L) or apocynin (100 micromol/L).
116 12847113 Western blot analysis confirmed that the protein abundance of NADPH oxidase subunit p47phox and the AT1 but not the AT2 receptor was enhanced in HG myocytes.
117 12847113 Enhanced reactive oxygen species production observed in HG myocytes was prevented by AT1 blockade or NADPH oxidase inhibition.
118 12847113 Collectively, our data suggest that local Ang II, acting via AT1 receptor-mediated NADPH oxidase activation, is involved in hyperglycemia-induced cardiomyocyte dysfunction, which might play a role in diabetic cardiomyopathy.
119 12874439 High glucose-induced ROS in mesangial cells can be effectively blocked by inhibition of protein kinase C (PKC), NADPH oxidase, and mitochondrial electron transfer chain complex I, suggesting that PKC, NADPH oxidase, and mitochondrial metabolism all play a role in high glucose-induced ROS generation.
120 12874439 Both high glucose and ROS activate signal transduction cascade (PKC, mitogen-activated protein kinases, and janus kinase/signal transducers and activators of transcription) and transcription factors (nuclear factor-kappaB, activated protein-1, and specificity protein 1) and upregulate TGF-beta1 and ECM genes and proteins.
121 12882933 We used mice deficient in phagocyte NADPH oxidase (gp91-phox(-/-)) to explore the role of oxidants in AGE production in isolated neutrophils and intact animals.
122 12882933 CML formation by gp91-phox(-/-) neutrophils was impaired, suggesting that oxidants produced by phagocyte NADPH oxidase contribute to the cellular formation of AGEs.
123 12882933 We used mice deficient in phagocyte NADPH oxidase (gp91-phox(-/-)) to explore the role of oxidants in AGE production in isolated neutrophils and intact animals.
124 12882933 CML formation by gp91-phox(-/-) neutrophils was impaired, suggesting that oxidants produced by phagocyte NADPH oxidase contribute to the cellular formation of AGEs.
125 14514646 Translocation of glomerular p47phox and p67phox by protein kinase C-beta activation is required for oxidative stress in diabetic nephropathy.
126 14514646 To address this issue, we examined diabetic glomeruli to determine whether oxidative stress is enhanced, as well as examined the role of protein kinase C (PKC)-beta activation in modulating NADPH oxidase activity.
127 14514646 NADPH oxidase activity, which was significantly enhanced in diabetic glomeruli and the source of reactive oxygen species (ROS) generation, was also improved by RBX treatment by preventing the membranous translocation of p47phox and p67phox from cytoplasmic fraction without affecting their protein levels.
128 14514646 Adenoviral-mediated PKC-beta(2) overexpression enhanced ROS generation by modulating the membranous translocation of p47phox and p67phox in cultured mesangial cells.
129 14514646 We now demonstrate that oxidative stress is primarily enhanced in the diabetic glomeruli due to a PKC-beta-dependent activation of NADPH oxidase resulting in ROS generation.
130 14514646 Translocation of glomerular p47phox and p67phox by protein kinase C-beta activation is required for oxidative stress in diabetic nephropathy.
131 14514646 To address this issue, we examined diabetic glomeruli to determine whether oxidative stress is enhanced, as well as examined the role of protein kinase C (PKC)-beta activation in modulating NADPH oxidase activity.
132 14514646 NADPH oxidase activity, which was significantly enhanced in diabetic glomeruli and the source of reactive oxygen species (ROS) generation, was also improved by RBX treatment by preventing the membranous translocation of p47phox and p67phox from cytoplasmic fraction without affecting their protein levels.
133 14514646 Adenoviral-mediated PKC-beta(2) overexpression enhanced ROS generation by modulating the membranous translocation of p47phox and p67phox in cultured mesangial cells.
134 14514646 We now demonstrate that oxidative stress is primarily enhanced in the diabetic glomeruli due to a PKC-beta-dependent activation of NADPH oxidase resulting in ROS generation.
135 14514646 Translocation of glomerular p47phox and p67phox by protein kinase C-beta activation is required for oxidative stress in diabetic nephropathy.
136 14514646 To address this issue, we examined diabetic glomeruli to determine whether oxidative stress is enhanced, as well as examined the role of protein kinase C (PKC)-beta activation in modulating NADPH oxidase activity.
137 14514646 NADPH oxidase activity, which was significantly enhanced in diabetic glomeruli and the source of reactive oxygen species (ROS) generation, was also improved by RBX treatment by preventing the membranous translocation of p47phox and p67phox from cytoplasmic fraction without affecting their protein levels.
138 14514646 Adenoviral-mediated PKC-beta(2) overexpression enhanced ROS generation by modulating the membranous translocation of p47phox and p67phox in cultured mesangial cells.
139 14514646 We now demonstrate that oxidative stress is primarily enhanced in the diabetic glomeruli due to a PKC-beta-dependent activation of NADPH oxidase resulting in ROS generation.
140 14642397 Inhibition of reduced nicotinamine adenine dinucleotide phosphate (NADPH) oxidase or nitric oxide synthase had little or no effect on the glucose-induced increase in superoxide.
141 14679084 Nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase) P22 Phox C242T gene polymorphism in type 1 diabetes.
142 14679084 Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase produces superoxide in macrophages, and its essential component, p22 phox, is a critical enzyme for superoxide production.
143 14679084 Nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase) P22 Phox C242T gene polymorphism in type 1 diabetes.
144 14679084 Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase produces superoxide in macrophages, and its essential component, p22 phox, is a critical enzyme for superoxide production.
145 14709372 Multivariate logistic regression analysis with adjustment for age, body mass index, and the prevalence of smoking, hypertension, diabetes mellitus, and hyperuricemia revealed that three polymorphisms [994G --> T (Val279Phe) in the platelet-activating factor acetylhydrolase gene, 242C --> T (His72Tyr) in the NADH/NADPH oxidase p22 phox gene, and 1100C --> T in the apolipoprotein C-III gene] were significantly associated with CAD in men with hypercholesterolemia.
146 14968555 Among the factors genotyped, two factors, platelet glycoprotein (GP) Ib alpha (Thr145Met) and NADPH oxidase p22phox (His72Tyr), were significantly associated with CVD after adjustment for acquired risk factors including hypertension, diabetes mellitus, hyperlipidemia, and smoking.
147 14988266 The cyclooxygenase (COX)-2 enzyme has been implicated in the pathogenesis of several inflammatory diseases.
148 14988266 High glucose treatment of THP-1 monocytic cells led to a significant three- to fivefold induction of COX-2 mRNA and protein expression but not COX-1 mRNA.
149 14988266 High glucose-induced COX-2 mRNA was blocked by inhibitors of nuclear factor-kappaB (NF-kappaB), protein kinase C, and p38 mitogen-activated protein kinase.
150 14988266 In addition, an antioxidant and inhibitors of mitochondrial superoxide, NADPH oxidase, and glucose metabolism to glucosamine also blocked high glucose-induced COX-2 expression to varying degrees.
151 14988266 Promoter deletion analyses and inhibition of transcription by NF-kappaB superrepressor and cAMP-responsive element binding (CREB) mutants confirmed the involvement of NF-kappaB and CREB transcription factors in high glucose-induced COX-2 regulation.
152 15010009 High blood glucose levels, altered insulin signaling, reactive oxygen species (ROS), inflammation, and protein kinase C activation might lead to a decrease in nitric oxide (NO) bioavailability.
153 15010009 Possible sources of oxidative excess in diabetes are reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, xanthine oxidase, uncoupled NO synthase, and the mitochondria.
154 15072974 This effect was accompanied by increased superoxide production by aortic rings and cultured endothelial cells that were coincubated with EMPs and was inhibited by a SOD mimetic and blunted by an endothelial nitric oxide synthase inhibitor.
155 15072974 In addition, p22(phox) subunit of NADPH-oxidase was detected in EMP.
156 15090261 PKC, PP2A, COX-2, 5-lipooxygenase, nitric oxide synthase, NADPH-oxidase, superoxide dismutase, phopholipase A2) and modulates the expression of genes that are involved in atherosclerosis (e.g. scavenger receptors, integrins, selectins, cytokines, cyclins).
157 15135268 Multivariate logistic regression analysis with adjustment for age, body mass index, and the prevalence of smoking, hypertension, diabetes mellitus, hypercholesterolemia, and hyperuricemia revealed that two polymorphisms (242C --> T in the NADH/NADPH oxidase p22 phox (p22-PHOX) gene and 2136C --> T in the thrombomodulin (THBD) gene) in men and two polymorphisms (584G --> A in the paraoxonase 1 (PON1) gene and 2445G --> A in the fatty acid-binding protein 2 (FABP2) gene) in women were significantly associated with restenosis after POBA.
158 15475499 Recent studies indicate that a major source of endothelial O2-* involved in redox signaling is a multicomponent phagocyte-type NADPH oxidase that is subject to specific regulation by stimuli such as oscillatory shear stress, hypoxia, angiotensin II, growth factors, cytokines, and hyperlipidemia.
159 15507533 PKC-delta-dependent activation of oxidative stress in adipocytes of obese and insulin-resistant mice: role for NADPH oxidase.
160 15507533 NADPH oxidase inhibitor diphenyleneiodonium chloride (DPI) reduced ROS levels by 50% in HF adipocytes, and inhibitors of NO synthase (L-NAME, 1 mM), xanthine oxidase (allopurinol, 100 microM), AGE formation (aminoguanidine, 10 microM), or the mitochondrial uncoupler (FCCP, 10 microM) had no effect.
161 15507533 PKC-delta-dependent activation of oxidative stress in adipocytes of obese and insulin-resistant mice: role for NADPH oxidase.
162 15507533 NADPH oxidase inhibitor diphenyleneiodonium chloride (DPI) reduced ROS levels by 50% in HF adipocytes, and inhibitors of NO synthase (L-NAME, 1 mM), xanthine oxidase (allopurinol, 100 microM), AGE formation (aminoguanidine, 10 microM), or the mitochondrial uncoupler (FCCP, 10 microM) had no effect.
163 15587680 In target cells, angiotensin II/AT1 receptor interaction generates various signals, including an immediate functional calcium-dependent response, secondary hypertrophy, and a late proinflammatory and procoagulant response.
164 15587680 These late pathological effects are mediated by NADPH oxidase-generated oxygen free radicals and NF-k-B activation.
165 15599400 In cultured adipocytes, elevated levels of fatty acids increased oxidative stress via NADPH oxidase activation, and oxidative stress caused dysregulated production of adipocytokines (fat-derived hormones), including adiponectin, plasminogen activator inhibitor-1, IL-6, and monocyte chemotactic protein-1.
166 15677487 Propelled by the identification of a small family of NADPH oxidase (Nox) enzyme homologs that produce superoxide in response to cellular stimulation with various growth factors, renewed interest has been generated in characterizing the signaling effects of reactive oxygen species (ROS) in relation to insulin action.
167 15677487 PTPs normally serve as negative regulators of insulin action via the dephosphorylation of the insulin receptor and its tyrosine-phosphorylated cellular substrates.
168 15677487 However, ROS can rapidly oxidize the catalytic cysteine of target PTPs, effectively blocking their enzyme activity and reversing their inhibitory effect on insulin signaling.
169 15677487 Among the cloned Nox homologs, we have recently provided evidence that Nox4 may mediate the insulin-stimulated generation of cellular ROS and is coupled to insulin action via the oxidative inhibition of PTP1B, a PTP known to be a major regulator of the insulin signaling cascade.
170 15777779 Immunoblotting and high-performance liquid chromatography (HPLC)-based techniques revealed, respectively, that the above inverse relationship between O2- and NO was associated with a marked increase in the protein expression of nitric oxide synthase (eNOS) and a decrease in the level of its cofactor tetrahydrobiopterin (BH4) in diabetic aortas.
171 15777779 Our studies suggest that diabetes produces a cascade of events involving production of reactive oxygen species from the NADPH oxidase leading to oxidation of BH4 and uncoupling of NOS.
172 15855339 Linoleic acid increases lectin-like oxidized LDL receptor-1 (LOX-1) expression in human aortic endothelial cells.
173 15855339 Lectin-like oxidized LDL receptor-1 (LOX-1) is the major endothelial receptor for oxidized LDL (oxLDL), and uptake of oxLDL through LOX-1 induces ED.
174 15855339 Pretreatment of HAECs with antioxidants and inhibitors of NADPH oxidase, protein kinase C (PKC), and nuclear factor-kappaB (NF-kappaB) inhibited the stimulatory effect of LA on LOX-1 protein expression.
175 15855339 LA also led to a significant increase in LOX-1 gene expression and enhanced the binding of nuclear proteins extracted from HAECs to the NF-kappaB regulatory element of the LOX-1 gene promoter.
176 15879305 Superoxide produced by the NADPH oxidase may react with NO released by endothelial nitric oxide synthase (eNOS), thereby generating peroxynitrite.
177 15879305 The present review summarizes current concepts concerning eNOS uncoupling and also focuses on the consequences for downstream signaling with respect to activity and expression of the sGC and cGK-I in various diseases.
178 15893134 Among them, TNF-alpha has been most widely studied; it not only suppresses the insulin signaling, but also elicits vascular inflammation.
179 15893134 Indeed, inhibition of TNF-alpha was found to improve insulin resistance in obese rats and reduce the progression of atherosclerosis in apolipoprotein E knockout mice, respectively.
180 15893134 These observations demonstrate that TNF-alpha could play a central role in the pathogenesis of insulin resistance and accelerated atherosclerosis in the metabolic syndrome.
181 15893134 In the process of the search for such a unique anti-hypertensive drug, we have recently found that azelnidipine, a newly developed and commercially used long-acting dihydropyridine-based calcium antagonist (DHP), inhibited TNF-alpha-induced activator protein-1 activation and interleukin-8 expression in human umbilical vein endothelial cells by suppressing NADPH oxidase-mediated reactive oxygen species generation.
182 15946965 Relief of stress by the NADPH oxidase inhibitor apocynin or by superoxide dismutase (SOD) but not by catalase reversed the attenuation of K+ currents and reduced DHE fluorescence.
183 15946965 In cells from diabetic females, neither apocynin nor SOD augmented K+ currents, ANG II was not elevated and DHE fluorescence was significantly weaker than in cells from males.
184 15946965 Diabetic male rats pretreated with the angiotensin-converting enzyme (ACE) inhibitor quinapril were hyperglycaemic, but their cellular ANG II levels and DHE fluorescence were significantly decreased.
185 15946965 When ANG II levels are lower, as in diabetic females or following ACE inhibition in males, oxidative stress is reduced, with blunted alterations in K+ currents.
186 15981946 PKC may have multiple adverse effects on vascular function, including the activation of superoxide-producing enzymes such as the nicotinamide adenine dinicleotide phosphate (NADPH) oxidase as well as increased expression of a dysfunctional, superoxide-producing, uncoupled endothelial nitric oxide synthase (NOS III).
187 15993337 The nox2-dependent NADPH oxidase was shown to be a major superoxide source in vascular disease, including diabetes.
188 15993337 We conclude that in addition to phagocytic NADPH oxidase, also nonphagocytic, vascular NADPH oxidase subunit nox1, uncoupled NOSIII, and plasma xanthine oxidase contribute to endothelial dysfunction in the setting of diabetes mellitus.
189 15993337 The nox2-dependent NADPH oxidase was shown to be a major superoxide source in vascular disease, including diabetes.
190 15993337 We conclude that in addition to phagocytic NADPH oxidase, also nonphagocytic, vascular NADPH oxidase subunit nox1, uncoupled NOSIII, and plasma xanthine oxidase contribute to endothelial dysfunction in the setting of diabetes mellitus.
191 15998257 Nox4, a homologue in the family of NADPH oxidase catalytic subunits, was found to be prominently expressed in insulin-sensitive cells.
192 15998257 By various molecular approaches, Nox4 was shown to mediate insulin-stimulated H2O2 generation and impact the insulin signaling cascade.
193 15998257 Overexpression of Nox4 also significantly reversed the inhibition of insulin-stimulated receptor tyrosine phosphorylation by PTP1B, a widely expressed PTPase implicated in the negative regulation of insulin signaling, by inhibiting its catalytic activity.
194 15998257 These recent studies have provided insight into Nox4 as a novel molecular link between insulin-stimulated reactive oxygen species and mechanisms involved in their modulation of insulin signal transduction.
195 16174288 High glucose (HG) induces cellular ROS through protein kinase C (PKC)-dependent activation of NADPH oxidase and through mitochondrial metabolism.
196 16174288 ROS thus generated activate signal transduction cascade (PKC, mitogen-activated protein kinases, and janus kinase/signal transducers and activators of transcription) and transcription factors (nuclear factor-kappaB, activated protein-1, and specificity protein-1), up-regulate transforming growth factor-beta1 (TGF-beta1), angiotensin II (Ang II), monocyte chemoattractant protein-1 (MCP-1), and plasminogen activator inhibitor-1 (PAI-1) gene and protein expression, and promote formation of advanced glycation end-products (AGE).
197 16174288 PKC, TGF-beta1, Ang II, and AGE also induce cellular ROS and signal through ROS leading to enhanced ECM synthesis.
198 16216433 NADPH oxidase-derived reactive oxygen species (ROS) generation is required for the AGE-RAGE signaling in vascular wall cells, and small G protein Rac is a critical component of vascular NADPH oxidase complex.
199 16249442 Stimulation of patients' skin fibroblast cells with platelet-derived growth factor (PDGF) resulted in a lower-level tyrosine phosphorylation of cytosolic proteins compared with that seen in normal cells.
200 16249442 We further showed that the lower-level tyrosine phosphorylation in response to growth factors results from the downregulation of an NADPH oxidase, Nox4, which in turn results in the reduction of ROS generation.
201 16249442 Ectopic expression of Nox4 in the patient fibroblast cells consistently restored PDGF-induced ROS production and regulation of PTPase activities.
202 16357302 We examined the effect of diabetes mellitus on oxidative stress and Rac-1 activation, a small G-protein involved in the activation of NADPH oxidase.
203 16380483 Staining for the NADPH oxidase subunit p47(phox), inducible nitric oxide synthase, and 12-lipoxygenase was increased in diabetic mouse kidney, as were urine levels of 12-hydroxyeicosatetraenoic acid and 8-iso-prostaglandin F(2alpha).
204 16380495 Insulin was enhanced (P < 0.05) in metabolic syndrome patients compared with cardiovascular risk factor and control groups and correlated with NADPH oxidase activity in the overall population.
205 16380495 Insulin stimulated NADPH oxidase activity; this effect was abolished by a specific protein kinase C inhibitor.
206 16380495 Insulin was enhanced (P < 0.05) in metabolic syndrome patients compared with cardiovascular risk factor and control groups and correlated with NADPH oxidase activity in the overall population.
207 16380495 Insulin stimulated NADPH oxidase activity; this effect was abolished by a specific protein kinase C inhibitor.
208 16380497 Increased extracellular glucose (30 mmol/l) rapidly stimulated generation of intracellular reactive oxygen species (ROS) through NADPH oxidase and mitochondrial pathways and led to activation of proapoptotic p38 mitogen-activated protein kinase and caspase 3 and to apoptosis of conditionally immortalized podocytes in vitro.
209 16440584 These results demonstrate that minodronate could inhibit VCAM- 1 expression in AGE-exposed ECs by suppressing NADPH oxidase-derived ROS generation, probably via inhibition of geranylgeranylation of Rac, a component of endothelial NADPH oxidase.
210 16455066 Amadori-modified glycated albumin predominantly induces E-selectin expression on human umbilical vein endothelial cells through NADPH oxidase activation.
211 16505175 Glycated proteins stimulate reactive oxygen species production in cardiac myocytes: involvement of Nox2 (gp91phox)-containing NADPH oxidase.
212 16575507 Macula densa nNOS is important for renin secretion, and its expression is regulated by dietary salt, renal angiotensin II, intracellular pH, and other factors.
213 16575507 In salt-sensitive hypertension, nNOS is suppressed, whereas in SHR or in the early phase of diabetes, nNOS is increased in macula densa along with NADPH oxidase, which limits NO bioavailability.
214 16631532 Metallothionein alleviates cardiac dysfunction in streptozotocin-induced diabetes: role of Ca2+ cycling proteins, NADPH oxidase, poly(ADP-Ribose) polymerase and myosin heavy chain isozyme.
215 16631532 This study was designed to examine the effect of cardiac overexpression of the heavy metal scavenger metallothionein (MT) on cardiac contractile function, intracellular Ca(2+) cycling proteins, stress-activated signaling molecules and the myosin heavy chain (MHC) isozyme in diabetes.
216 16631532 Diabetes enhanced expression of the AT(1) receptor, phospholamban, the p47(phox) NADPH oxidase subunit and poly(ADP-ribose) polymerase (PARP), depressed the level of SERCA2a, Na(+)-Ca(2+) exchanger and triggered a beta-MHC isozyme switch.
217 16631532 Collectively, these data suggest a beneficial effect of MT in the therapeutics of diabetic cardiomyopathy, possibly through a mechanism related to NADPH oxidase, PARP and MHC isozyme switch.
218 16631532 Metallothionein alleviates cardiac dysfunction in streptozotocin-induced diabetes: role of Ca2+ cycling proteins, NADPH oxidase, poly(ADP-Ribose) polymerase and myosin heavy chain isozyme.
219 16631532 This study was designed to examine the effect of cardiac overexpression of the heavy metal scavenger metallothionein (MT) on cardiac contractile function, intracellular Ca(2+) cycling proteins, stress-activated signaling molecules and the myosin heavy chain (MHC) isozyme in diabetes.
220 16631532 Diabetes enhanced expression of the AT(1) receptor, phospholamban, the p47(phox) NADPH oxidase subunit and poly(ADP-ribose) polymerase (PARP), depressed the level of SERCA2a, Na(+)-Ca(2+) exchanger and triggered a beta-MHC isozyme switch.
221 16631532 Collectively, these data suggest a beneficial effect of MT in the therapeutics of diabetic cardiomyopathy, possibly through a mechanism related to NADPH oxidase, PARP and MHC isozyme switch.
222 16631532 Metallothionein alleviates cardiac dysfunction in streptozotocin-induced diabetes: role of Ca2+ cycling proteins, NADPH oxidase, poly(ADP-Ribose) polymerase and myosin heavy chain isozyme.
223 16631532 This study was designed to examine the effect of cardiac overexpression of the heavy metal scavenger metallothionein (MT) on cardiac contractile function, intracellular Ca(2+) cycling proteins, stress-activated signaling molecules and the myosin heavy chain (MHC) isozyme in diabetes.
224 16631532 Diabetes enhanced expression of the AT(1) receptor, phospholamban, the p47(phox) NADPH oxidase subunit and poly(ADP-ribose) polymerase (PARP), depressed the level of SERCA2a, Na(+)-Ca(2+) exchanger and triggered a beta-MHC isozyme switch.
225 16631532 Collectively, these data suggest a beneficial effect of MT in the therapeutics of diabetic cardiomyopathy, possibly through a mechanism related to NADPH oxidase, PARP and MHC isozyme switch.
226 16707486 Pigment epithelium-derived factor inhibits advanced glycation end product-induced retinal vascular hyperpermeability by blocking reactive oxygen species-mediated vascular endothelial growth factor expression.
227 16707486 Pigment epithelium-derived factor (PEDF) is the most potent inhibitor of angiogenesis, suggesting that loss of PEDF contributes to proliferative diabetic retinopathy.
228 16707486 Intravenous administration of AGEs to normal rats not only increased retinal vascular permeability by stimulating vascular endothelial growth factor (VEGF) expression but also decreased retinal PEDF levels.
229 16707486 Simultaneous treatments with PEDF inhibited the AGE-elicited VEGF-mediated permeability by down-regulating mRNA levels of p22(phox) and gp91(phox), membrane components of NADPH oxidase, and subsequently decreasing retinal levels of an oxidative stress marker, 8-hydroxydeoxyguanosine.
230 16707486 PEDF also inhibited the AGE-induced vascular hyperpermeability evaluated by transendothelial electrical resistance by suppressing VEGF expression.
231 16707486 Furthermore, PEDF decreased reactive oxygen species (ROS) generation in AGE-exposed endothelial cells by suppressing NADPH oxidase activity via down-regulation of mRNA levels of p22(PHOX) and gp91(PHOX).
232 16707486 This led to blockade of the AGE-elicited Ras activation and NF-kappaB-dependent VEGF gene induction in endothelial cells.
233 16707486 These results indicate that the central mechanism for PEDF inhibition of the AGE signaling to vascular permeability is by suppression of NADPH oxidase-mediated ROS generation and subsequent VEGF expression.
234 16707486 Pigment epithelium-derived factor inhibits advanced glycation end product-induced retinal vascular hyperpermeability by blocking reactive oxygen species-mediated vascular endothelial growth factor expression.
235 16707486 Pigment epithelium-derived factor (PEDF) is the most potent inhibitor of angiogenesis, suggesting that loss of PEDF contributes to proliferative diabetic retinopathy.
236 16707486 Intravenous administration of AGEs to normal rats not only increased retinal vascular permeability by stimulating vascular endothelial growth factor (VEGF) expression but also decreased retinal PEDF levels.
237 16707486 Simultaneous treatments with PEDF inhibited the AGE-elicited VEGF-mediated permeability by down-regulating mRNA levels of p22(phox) and gp91(phox), membrane components of NADPH oxidase, and subsequently decreasing retinal levels of an oxidative stress marker, 8-hydroxydeoxyguanosine.
238 16707486 PEDF also inhibited the AGE-induced vascular hyperpermeability evaluated by transendothelial electrical resistance by suppressing VEGF expression.
239 16707486 Furthermore, PEDF decreased reactive oxygen species (ROS) generation in AGE-exposed endothelial cells by suppressing NADPH oxidase activity via down-regulation of mRNA levels of p22(PHOX) and gp91(PHOX).
240 16707486 This led to blockade of the AGE-elicited Ras activation and NF-kappaB-dependent VEGF gene induction in endothelial cells.
241 16707486 These results indicate that the central mechanism for PEDF inhibition of the AGE signaling to vascular permeability is by suppression of NADPH oxidase-mediated ROS generation and subsequent VEGF expression.
242 16707486 Pigment epithelium-derived factor inhibits advanced glycation end product-induced retinal vascular hyperpermeability by blocking reactive oxygen species-mediated vascular endothelial growth factor expression.
243 16707486 Pigment epithelium-derived factor (PEDF) is the most potent inhibitor of angiogenesis, suggesting that loss of PEDF contributes to proliferative diabetic retinopathy.
244 16707486 Intravenous administration of AGEs to normal rats not only increased retinal vascular permeability by stimulating vascular endothelial growth factor (VEGF) expression but also decreased retinal PEDF levels.
245 16707486 Simultaneous treatments with PEDF inhibited the AGE-elicited VEGF-mediated permeability by down-regulating mRNA levels of p22(phox) and gp91(phox), membrane components of NADPH oxidase, and subsequently decreasing retinal levels of an oxidative stress marker, 8-hydroxydeoxyguanosine.
246 16707486 PEDF also inhibited the AGE-induced vascular hyperpermeability evaluated by transendothelial electrical resistance by suppressing VEGF expression.
247 16707486 Furthermore, PEDF decreased reactive oxygen species (ROS) generation in AGE-exposed endothelial cells by suppressing NADPH oxidase activity via down-regulation of mRNA levels of p22(PHOX) and gp91(PHOX).
248 16707486 This led to blockade of the AGE-elicited Ras activation and NF-kappaB-dependent VEGF gene induction in endothelial cells.
249 16707486 These results indicate that the central mechanism for PEDF inhibition of the AGE signaling to vascular permeability is by suppression of NADPH oxidase-mediated ROS generation and subsequent VEGF expression.
250 16709900 An osteopontin-NADPH oxidase signaling cascade promotes pro-matrix metalloproteinase 9 activation in aortic mesenchymal cells.
251 16709900 By zymography, OPN and tumor necrosis factor (TNF)-alpha preferentially upregulate pro-matrix metalloproteinase 9 (pro-MMP9) activity.
252 16709900 TNF-alpha upregulated pro-MMP9 in AMFs isolated from wild-type (OPN(+/+)) mice, but pro-MMP9 induction was abrogated in AMFs from OPN(-/-) mice.
253 16709900 OPN treatment of VSMCs enhanced pro-MMP9 activity, and TNF-alpha induction of pro-MMP9 was inhibited by anti-OPN antibody and apocynin.
254 16709900 Like OPN and TNF-alpha, 8-IsoP preferentially activated pro-MMP9.
255 16709900 Superoxide, 8-IsoP, and NADPH oxidase 2 (Nox2) subunits were reduced in OPN(-/-) AMFs.
256 16709900 Treatment of A7r5 VSMCs with OPN upregulated NADPH oxidase subunit accumulation.
257 16709900 OPN structure/function studies mapped these activities to the SVVYGLR heptapeptide motif in the thrombin-liberated human OPN N-terminal domain (SLAYGLR in mouse OPN).
258 16709900 Treatment of aortic VSMCs with SVVYGLR upregulated pro-MMP9 activity and restored TNF-alpha activation of pro-MMP9 in OPN(-/-) AMFs.
259 16709900 Injection of OPN-deficient OPN(+/-) mice with SVVYGLR peptide upregulated pro-MMP9 activity, 8-IsoP levels, and Nox2 protein levels in aorta and increased panmural superoxide production (dihydroethidium staining).
260 16709900 At equivalent hyperglycemia and dyslipidemia, 8-IsoP levels and aortic pro-MMP9 were reduced with complete OPN deficiency in a model of diet-induced diabetes, achieved by comparing OPN(-/-)/LDLR(-/-) versus OPN(+/-)/LDLR(-/-) siblings.
261 16709900 Thus, OPN provides a paracrine signal that augments vascular pro-MMP9 activity, mediated in part via superoxide generation and oxylipid formation.
262 16709900 An osteopontin-NADPH oxidase signaling cascade promotes pro-matrix metalloproteinase 9 activation in aortic mesenchymal cells.
263 16709900 By zymography, OPN and tumor necrosis factor (TNF)-alpha preferentially upregulate pro-matrix metalloproteinase 9 (pro-MMP9) activity.
264 16709900 TNF-alpha upregulated pro-MMP9 in AMFs isolated from wild-type (OPN(+/+)) mice, but pro-MMP9 induction was abrogated in AMFs from OPN(-/-) mice.
265 16709900 OPN treatment of VSMCs enhanced pro-MMP9 activity, and TNF-alpha induction of pro-MMP9 was inhibited by anti-OPN antibody and apocynin.
266 16709900 Like OPN and TNF-alpha, 8-IsoP preferentially activated pro-MMP9.
267 16709900 Superoxide, 8-IsoP, and NADPH oxidase 2 (Nox2) subunits were reduced in OPN(-/-) AMFs.
268 16709900 Treatment of A7r5 VSMCs with OPN upregulated NADPH oxidase subunit accumulation.
269 16709900 OPN structure/function studies mapped these activities to the SVVYGLR heptapeptide motif in the thrombin-liberated human OPN N-terminal domain (SLAYGLR in mouse OPN).
270 16709900 Treatment of aortic VSMCs with SVVYGLR upregulated pro-MMP9 activity and restored TNF-alpha activation of pro-MMP9 in OPN(-/-) AMFs.
271 16709900 Injection of OPN-deficient OPN(+/-) mice with SVVYGLR peptide upregulated pro-MMP9 activity, 8-IsoP levels, and Nox2 protein levels in aorta and increased panmural superoxide production (dihydroethidium staining).
272 16709900 At equivalent hyperglycemia and dyslipidemia, 8-IsoP levels and aortic pro-MMP9 were reduced with complete OPN deficiency in a model of diet-induced diabetes, achieved by comparing OPN(-/-)/LDLR(-/-) versus OPN(+/-)/LDLR(-/-) siblings.
273 16709900 Thus, OPN provides a paracrine signal that augments vascular pro-MMP9 activity, mediated in part via superoxide generation and oxylipid formation.
274 16709900 An osteopontin-NADPH oxidase signaling cascade promotes pro-matrix metalloproteinase 9 activation in aortic mesenchymal cells.
275 16709900 By zymography, OPN and tumor necrosis factor (TNF)-alpha preferentially upregulate pro-matrix metalloproteinase 9 (pro-MMP9) activity.
276 16709900 TNF-alpha upregulated pro-MMP9 in AMFs isolated from wild-type (OPN(+/+)) mice, but pro-MMP9 induction was abrogated in AMFs from OPN(-/-) mice.
277 16709900 OPN treatment of VSMCs enhanced pro-MMP9 activity, and TNF-alpha induction of pro-MMP9 was inhibited by anti-OPN antibody and apocynin.
278 16709900 Like OPN and TNF-alpha, 8-IsoP preferentially activated pro-MMP9.
279 16709900 Superoxide, 8-IsoP, and NADPH oxidase 2 (Nox2) subunits were reduced in OPN(-/-) AMFs.
280 16709900 Treatment of A7r5 VSMCs with OPN upregulated NADPH oxidase subunit accumulation.
281 16709900 OPN structure/function studies mapped these activities to the SVVYGLR heptapeptide motif in the thrombin-liberated human OPN N-terminal domain (SLAYGLR in mouse OPN).
282 16709900 Treatment of aortic VSMCs with SVVYGLR upregulated pro-MMP9 activity and restored TNF-alpha activation of pro-MMP9 in OPN(-/-) AMFs.
283 16709900 Injection of OPN-deficient OPN(+/-) mice with SVVYGLR peptide upregulated pro-MMP9 activity, 8-IsoP levels, and Nox2 protein levels in aorta and increased panmural superoxide production (dihydroethidium staining).
284 16709900 At equivalent hyperglycemia and dyslipidemia, 8-IsoP levels and aortic pro-MMP9 were reduced with complete OPN deficiency in a model of diet-induced diabetes, achieved by comparing OPN(-/-)/LDLR(-/-) versus OPN(+/-)/LDLR(-/-) siblings.
285 16709900 Thus, OPN provides a paracrine signal that augments vascular pro-MMP9 activity, mediated in part via superoxide generation and oxylipid formation.
286 16724810 The Ncf1 gene encodes for the Ncf1 protein that is involved in production of free oxygen radicals through the NADPH oxidase complex, which opens up a new pathway for therapeutic treatment of inflammatory diseases.
287 16771662 These include the prototypic Nox2 isoform-based NADPH oxidase, which was first characterized in neutrophils, as well as other NADPH oxidases such as Nox1 and Nox4.
288 16828231 These include vitamin E, which blunts the rise in mesangial diacylglycerol levels induced by hyperglycemia; statins and (possibly) policosanol, which down-regulate NADPH oxidase activity by diminishing isoprenylation of Rac1; lipoic acid, whose potent antioxidant activity antagonizes the impact of oxidant stress on TGF-beta expression; pyridoxamine, which inhibits production of advanced glycation endproducts; arginine, high-dose folate, vitamin C, and salt restriction, which may support glomerular production of nitric oxide; and estrogen and soy isoflavones, which may induce nitric oxide synthase in glomerular capillaries while also interfering with TGF-beta signaling.
289 16919536 Glucose ingestion (75 g in 300 mL water) in healthy human subjects resulted in an increase in intranuclear nuclear factor kappaB (NF-kappaB) binding, the reduction of inhibitor kappaB alpha (IkappaBalpha) protein, and an increase in the activity of inhibitor kappaB kinase (IKK) and the expression of IKKalpha and IKKbeta, the enzymes that phosphorylate IkappaBalpha, in MNCs.
290 16919536 Glucose intake caused an increase in NF-kappaB binding to NF-kappaB2, NF-kappaB2a, and NF-kappaB3 sequences in the promoter site of tumor necrosis factor alpha (TNF-alpha) gene along with an increase in the expression of TNF-alpha messenger RNA in MNCs.
291 16919536 Membranous p47(phox) subunit, an index of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase expression and activation, also increased after glucose intake.
292 16919536 We conclude that glucose intake induces an immediate increase in intranuclear NF-kappaB binding, a fall in IkappaBalpha, an increase in IKKalpha, IKKbeta, IKK activity, and messenger RNA expression of TNF-alpha in MNCs in healthy subjects.
293 16940699 U-II accelerates foam cell formation by up-regulation of acyl-coenzyme A:cholesterol acyltransferase-1 in human monocyte-derived macrophages.
294 16940699 In human endothelial cells, U-II promotes cell proliferation and up-regulates type 1 collagen expression.
295 16940699 U-II also activates nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and plasminogen activator inhibitor-1 in human VSMCs, and stimulates VSMC proliferation with synergistic effects observed when combined with oxidized low-density lipoprotein, lysophosphatidylcholine, reactive oxygen species or serotonin.
296 16979161 To investigate the direct vasoprotective effects of PPARgamma and PPARalpha ligands, pioglitazone (3 mg/kg/day) and bezafibrate (10 mg/kg/day) were given by gavage to streptozotocin-induced diabetic rats for 4 weeks.
297 16979161 Streptozotocin (65 mg/kg, i.p.) significantly increased NADPH oxidase, vascular call adhesion molecule-1 (VCAM-1), and osteopontin mRNA levels in the aorta, as determined by reverse transcription (RT)-polymerase chain reaction (PCR).
298 16979161 Pioglitazone or bezafibrate attenuated the streptozotocin-induced increase in the expression of NADPH oxidase and VCAM-1 mRNA.
299 16979161 These results suggest that the direct anti-oxidant and anti-inflammatory effects of PPARs ligands in the aorta of streptozotocin-induced diabetic rats were not likely to have been mediated by the normalization of glucose or lipid metabolism, but instead these salutary effects appear to have been associated with the inhibition of the expression of ACE.
300 16979161 To investigate the direct vasoprotective effects of PPARgamma and PPARalpha ligands, pioglitazone (3 mg/kg/day) and bezafibrate (10 mg/kg/day) were given by gavage to streptozotocin-induced diabetic rats for 4 weeks.
301 16979161 Streptozotocin (65 mg/kg, i.p.) significantly increased NADPH oxidase, vascular call adhesion molecule-1 (VCAM-1), and osteopontin mRNA levels in the aorta, as determined by reverse transcription (RT)-polymerase chain reaction (PCR).
302 16979161 Pioglitazone or bezafibrate attenuated the streptozotocin-induced increase in the expression of NADPH oxidase and VCAM-1 mRNA.
303 16979161 These results suggest that the direct anti-oxidant and anti-inflammatory effects of PPARs ligands in the aorta of streptozotocin-induced diabetic rats were not likely to have been mediated by the normalization of glucose or lipid metabolism, but instead these salutary effects appear to have been associated with the inhibition of the expression of ACE.
304 16987014 All components of the phagocytic NADPH oxidase, as well as the Nox-1 and -4, are expressed in the kidney, with a prominent expression in renal vessels, glomeruli, and podocytes, and cells of the thick ascending limb of the loop of Henle (TAL), macula densa, distal tubules, collecting ducts, and cortical interstitial fibroblasts.
305 16987014 NADPH oxidase activity is upregulated by prolonged infusion of angiotensin II (Ang II) or a high salt diet.
306 16987014 Indeed, recent studies with small interference RNAs (siRNAs) targeted to p22( phox ) implicate p22( phox ) in Ang II-induced activation of renal NADPH oxidase and the development of oxidative stress and hypertension, while studies with apocynin implicate activation of p47( phox ) in the development of nephropathy in a rat model of type 1 diabetes mellitus (DM).
307 16987014 All components of the phagocytic NADPH oxidase, as well as the Nox-1 and -4, are expressed in the kidney, with a prominent expression in renal vessels, glomeruli, and podocytes, and cells of the thick ascending limb of the loop of Henle (TAL), macula densa, distal tubules, collecting ducts, and cortical interstitial fibroblasts.
308 16987014 NADPH oxidase activity is upregulated by prolonged infusion of angiotensin II (Ang II) or a high salt diet.
309 16987014 Indeed, recent studies with small interference RNAs (siRNAs) targeted to p22( phox ) implicate p22( phox ) in Ang II-induced activation of renal NADPH oxidase and the development of oxidative stress and hypertension, while studies with apocynin implicate activation of p47( phox ) in the development of nephropathy in a rat model of type 1 diabetes mellitus (DM).
310 16987014 All components of the phagocytic NADPH oxidase, as well as the Nox-1 and -4, are expressed in the kidney, with a prominent expression in renal vessels, glomeruli, and podocytes, and cells of the thick ascending limb of the loop of Henle (TAL), macula densa, distal tubules, collecting ducts, and cortical interstitial fibroblasts.
311 16987014 NADPH oxidase activity is upregulated by prolonged infusion of angiotensin II (Ang II) or a high salt diet.
312 16987014 Indeed, recent studies with small interference RNAs (siRNAs) targeted to p22( phox ) implicate p22( phox ) in Ang II-induced activation of renal NADPH oxidase and the development of oxidative stress and hypertension, while studies with apocynin implicate activation of p47( phox ) in the development of nephropathy in a rat model of type 1 diabetes mellitus (DM).
313 17023526 A 2-wk treatment with a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, pitavastatin (3 mg/kg/d) or a reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor, apocynin (5 mmol/liter in drinking water), improved the response in ZDF (ED(50), -7.16 +/- 0.03 and -7.14 +/- 0.05 log(10) mol/liter, P = 0.008 and P = 0.015 vs. vehicle, respectively).
314 17046555 In the present study, we investigated the role of nicotinamide adenine dinucleotide phosphate (reduced form) (NADPH) oxidase in AGE-induced ROS intracellular generation and vascular endothelial growth factor (VEGF) expression in bovine retinal endothelial cells (BRECs).
315 17046555 In retinal endothelial cells exposed to AGEs, translocation of protein kinase C (PKC)-beta2 and p47phox was observed.
316 17046555 Incubation of BRECs with gliclazide inhibited AGE-induced PKC-beta2 and p47phox translocation and totally abrogated AGE-mediated ROS generation and VEGF expression.
317 17046555 Overall, these results demonstrate that AGEs induce intracellular ROS generation and VEGF expression in retinal endothelial cells through a PKC-dependent activation of NADPH oxidase.
318 17046555 Inhibition of retinal NADPH oxidase expression and ROS generated by this system provides a new potential mechanism by which gliclazide may affect retinal VEGF expression and exert a beneficial effect on diabetic retinopathy.
319 17046555 In the present study, we investigated the role of nicotinamide adenine dinucleotide phosphate (reduced form) (NADPH) oxidase in AGE-induced ROS intracellular generation and vascular endothelial growth factor (VEGF) expression in bovine retinal endothelial cells (BRECs).
320 17046555 In retinal endothelial cells exposed to AGEs, translocation of protein kinase C (PKC)-beta2 and p47phox was observed.
321 17046555 Incubation of BRECs with gliclazide inhibited AGE-induced PKC-beta2 and p47phox translocation and totally abrogated AGE-mediated ROS generation and VEGF expression.
322 17046555 Overall, these results demonstrate that AGEs induce intracellular ROS generation and VEGF expression in retinal endothelial cells through a PKC-dependent activation of NADPH oxidase.
323 17046555 Inhibition of retinal NADPH oxidase expression and ROS generated by this system provides a new potential mechanism by which gliclazide may affect retinal VEGF expression and exert a beneficial effect on diabetic retinopathy.
324 17046555 In the present study, we investigated the role of nicotinamide adenine dinucleotide phosphate (reduced form) (NADPH) oxidase in AGE-induced ROS intracellular generation and vascular endothelial growth factor (VEGF) expression in bovine retinal endothelial cells (BRECs).
325 17046555 In retinal endothelial cells exposed to AGEs, translocation of protein kinase C (PKC)-beta2 and p47phox was observed.
326 17046555 Incubation of BRECs with gliclazide inhibited AGE-induced PKC-beta2 and p47phox translocation and totally abrogated AGE-mediated ROS generation and VEGF expression.
327 17046555 Overall, these results demonstrate that AGEs induce intracellular ROS generation and VEGF expression in retinal endothelial cells through a PKC-dependent activation of NADPH oxidase.
328 17046555 Inhibition of retinal NADPH oxidase expression and ROS generated by this system provides a new potential mechanism by which gliclazide may affect retinal VEGF expression and exert a beneficial effect on diabetic retinopathy.
329 17065329 Adipogenic G6PD overexpression promotes the expression of pro-oxidative enzymes, including inducible nitric oxide synthase and NADPH oxidase, and the activation of nuclear factor-kappaB (NF-kappaB) signaling, which eventually leads to the dysregulation of adipocytokines and inflammatory signals.
330 17065329 These effects of G6PD overexpression in adipocytes were abolished by pretreatment with NF-kappaB inhibitors or antioxidant drugs.
331 17065350 In wild-type mice, diabetes increased the translocation of PKC-alpha and -beta1 to the membrane, whereas only PKC-alpha was elevated in PKC-beta(-/-) mice.
332 17065350 Diabetes increased NADPH oxidase activity and the expressions of p47(phox), Nox2, and Nox4 mRNA levels in the renal cortex and were unchanged in diabetic PKC-beta(-/-) mice.
333 17065350 Increased expression of endothelin-1 (ET-1), vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-beta, connective tissue growth factor (CTGF), and collagens IV and VI found in diabetic wild-type mice was attenuated in diabetic PKC-beta(-/-) mice.
334 17065350 Lack of PKC-beta can protect against diabetes-induced renal dysfunction, fibrosis, and increased expressions of Nox2 and -4, ET-1, VEGF, TGF-beta, CTGF, and oxidant production.
335 17122189 Metabolic parameters, free 15-F(2t)-isoprostane level, protein expression of NADPH oxidase, superoxide dismutase (SOD), heme oxygenase (HO-1), interleukin-6 (IL-6), and cyclooxygenase-2 (COX-2) were analyzed in control and streptozotocin-induced diabetic rats treated with or without NAC in drinking water for 8 wk.
336 17122189 The cardiac protein expression of p67(phox) and p22(phox) was increased in diabetic rats, accompanied by increased NADPH-dependent superoxide production.
337 17122189 As a compensatory response to the increased NADPH oxidase, the protein expression of Cu-Zn-SOD and HO-1 and the total SOD activity were also increased in diabetic rat hearts.
338 17122189 Cardiac inflammatory markers IL-6 and COX-2 were also increased in diabetic rats.
339 17122189 NAC treatment prevented the increased expression of p22(phox) and translocation of p67(phox) to the membrane in diabetic rat hearts.
340 17122189 Subsequently, the levels of cardiac free 15-F(2t)-isoprostane, HO-1, Cu-Zn-SOD, total SOD, IL-6, and COX-2 in diabetic rats were decreased by NAC.
341 17122189 The protective effects of NAC on diabetic rat hearts may be attributable to its protection of hearts against oxidative damage induced by the increased NADPH oxidase and to its reduction in cardiac inflammatory mediators IL-6 and COX-2.
342 17122189 Metabolic parameters, free 15-F(2t)-isoprostane level, protein expression of NADPH oxidase, superoxide dismutase (SOD), heme oxygenase (HO-1), interleukin-6 (IL-6), and cyclooxygenase-2 (COX-2) were analyzed in control and streptozotocin-induced diabetic rats treated with or without NAC in drinking water for 8 wk.
343 17122189 The cardiac protein expression of p67(phox) and p22(phox) was increased in diabetic rats, accompanied by increased NADPH-dependent superoxide production.
344 17122189 As a compensatory response to the increased NADPH oxidase, the protein expression of Cu-Zn-SOD and HO-1 and the total SOD activity were also increased in diabetic rat hearts.
345 17122189 Cardiac inflammatory markers IL-6 and COX-2 were also increased in diabetic rats.
346 17122189 NAC treatment prevented the increased expression of p22(phox) and translocation of p67(phox) to the membrane in diabetic rat hearts.
347 17122189 Subsequently, the levels of cardiac free 15-F(2t)-isoprostane, HO-1, Cu-Zn-SOD, total SOD, IL-6, and COX-2 in diabetic rats were decreased by NAC.
348 17122189 The protective effects of NAC on diabetic rat hearts may be attributable to its protection of hearts against oxidative damage induced by the increased NADPH oxidase and to its reduction in cardiac inflammatory mediators IL-6 and COX-2.
349 17122189 Metabolic parameters, free 15-F(2t)-isoprostane level, protein expression of NADPH oxidase, superoxide dismutase (SOD), heme oxygenase (HO-1), interleukin-6 (IL-6), and cyclooxygenase-2 (COX-2) were analyzed in control and streptozotocin-induced diabetic rats treated with or without NAC in drinking water for 8 wk.
350 17122189 The cardiac protein expression of p67(phox) and p22(phox) was increased in diabetic rats, accompanied by increased NADPH-dependent superoxide production.
351 17122189 As a compensatory response to the increased NADPH oxidase, the protein expression of Cu-Zn-SOD and HO-1 and the total SOD activity were also increased in diabetic rat hearts.
352 17122189 Cardiac inflammatory markers IL-6 and COX-2 were also increased in diabetic rats.
353 17122189 NAC treatment prevented the increased expression of p22(phox) and translocation of p67(phox) to the membrane in diabetic rat hearts.
354 17122189 Subsequently, the levels of cardiac free 15-F(2t)-isoprostane, HO-1, Cu-Zn-SOD, total SOD, IL-6, and COX-2 in diabetic rats were decreased by NAC.
355 17122189 The protective effects of NAC on diabetic rat hearts may be attributable to its protection of hearts against oxidative damage induced by the increased NADPH oxidase and to its reduction in cardiac inflammatory mediators IL-6 and COX-2.
356 17146946 NO* is produced by nitric oxide synthase (NOS) and O2*- is formed by the addition of an electron to O2 in enzymatic as well as nonenzymatic way.
357 17146946 NADPH oxidase and xanthine oxidase are some of the enzymes involved in O2*- formation.
358 17157880 Topical application of MnTMPyP (SOD mimetic) and apocynin (NADPH oxidase inhibitor) significantly improved the altered arteriolar responses to acetylcholine and bradykinin.
359 17179929 In obesity and insulin resistance, increased secretion of proinflammatory cytokines and decreased secretion of adiponectin from adipose tissue, increased circulating levels of free fatty acids, and postprandial hyperglycemia can all alter gene expression and cell signaling in vascular endothelium, cause vascular insulin resistance, and change the release of endothelium-derived factors.
360 17179929 Dysfunctional endothelium displays activation of vascular NADPH oxidase, uncoupling of endothelial nitric oxide synthase, increased expression of endothelin 1, a changed balance between the production of vasodilator and vasoconstrictor prostanoids, and induction of adhesion molecules.
361 17240121 Increased superoxide production, induction of inducible nitric oxide synthase (iNOS), and decreased caveolin-1 were observed in a concentration-dependent manner in THP-1 derived macrophages with high glucose concentrations.
362 17240121 This might be due to the actions of superoxide via the activation of NADPH oxidase by translocation of its component and uncoupling of induced iNOS in macrophages.
363 17258748 Mouse peritoneal macrophages (MPMs) isolated from Balb-C streptozotocin-induced diabetic mice, exhibited significantly higher total peroxides, lipid peroxides and paraoxonase 2 (PON2) activity by 290%, 61% and 55%, respectively, compared to non-diabetic mice.
364 17258748 In vitro studies revealed that glucose-induced oxidative stress was obtained by D-glucose, but not by L-glucose and it involved activation of the NADPH oxidase complex, and up-regulation of the macrophage PON2.
365 17258748 These effects on cellular cholesterol metabolism were associated with up-regulation of the scavenger receptors for Ox-LDL (CD-36 and SR-A), and of HMG-CoA reductase (cholesterol biosynthesis rate limiting enzyme).
366 17258748 In conclusion, macrophages from diabetic mice demonstrate increased oxidative stress associated with activation of NADPH oxidase and up-regulation of cellular PON2, as well as increased macrophages cholesterol uptake and biosynthesis (increased expression of CD-36 and HMG-CoA reductase).
367 17258748 Mouse peritoneal macrophages (MPMs) isolated from Balb-C streptozotocin-induced diabetic mice, exhibited significantly higher total peroxides, lipid peroxides and paraoxonase 2 (PON2) activity by 290%, 61% and 55%, respectively, compared to non-diabetic mice.
368 17258748 In vitro studies revealed that glucose-induced oxidative stress was obtained by D-glucose, but not by L-glucose and it involved activation of the NADPH oxidase complex, and up-regulation of the macrophage PON2.
369 17258748 These effects on cellular cholesterol metabolism were associated with up-regulation of the scavenger receptors for Ox-LDL (CD-36 and SR-A), and of HMG-CoA reductase (cholesterol biosynthesis rate limiting enzyme).
370 17258748 In conclusion, macrophages from diabetic mice demonstrate increased oxidative stress associated with activation of NADPH oxidase and up-regulation of cellular PON2, as well as increased macrophages cholesterol uptake and biosynthesis (increased expression of CD-36 and HMG-CoA reductase).
371 17261958 The expression of NADPH oxidase, catalase, and myeloperoxidase (MPO), superoxide dismutase activity, and production of peroxide and hypochlorite were evaluated.
372 17261958 Catalase was decreased without change in SOD activity, and MPO was enhanced in the kidney of diabetic rats.
373 17261958 Tempol treatment stimulated SOD activity and increased the conversion of superoxide to hydrogen peroxide, and hydrogen peroxide on its hand was converted to hypochlorite by the increased MPO.
374 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
375 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
376 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
377 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
378 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
379 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
380 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
381 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
382 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
383 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
384 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
385 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
386 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
387 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
388 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
389 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
390 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
391 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
392 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
393 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
394 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
395 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
396 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
397 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
398 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
399 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
400 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
401 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
402 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
403 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
404 17292348 Increased oxidative stress in the streptozotocin-induced diabetic apoE-deficient mouse: changes in expression of NADPH oxidase subunits and eNOS.
405 17292348 Glucose-induced changes in the activity of NADPH oxidase and endothelial nitric oxide synthase (eNOS) may result in vascular endothelial cell dysfunction via dysregulation of eNOS and/or changes in the expression of the subunits of NADPH oxidase.
406 17292348 In this study, we have investigated whether changes in the expression of the subunits of NADPH oxidase, or eNOS mRNA, can be associated with oxidative stress in the streptozotocin-induced type 1 diabetic apolipoprotein E-deficient (apoE(-/-)) diabetic mouse.
407 17292348 Oxidative stress was assessed in aorta and mesenteric arteries by immunofluorescence labelling with dihydroethidium and levels of NADPH oxidase subunits and eNOS were determined by a real-time polymerase chain reaction protocol.
408 17292348 In the mesenteric arteries the expression of nox4 (4 weeks) and gp91phox (nox2) (8 weeks) subunits of NADPH oxidase from streptozotocin-apoE(-/-) were enhanced as were eNOS mRNA and protein (P<0.05).
409 17292348 These data indicate that increased oxidative stress in the vasculature of streptozotocin-apoE(-/-) mice is linked to changes in eNOS, superoxide dismutase (SOD) and NADPH oxidase expression.
410 17307998 Using an intravital microscopic approach in C57BL/6J mice, we showed that ANG II type I (AT(1)) or type II (AT(2)) receptor antagonism (with valsartan or PD-123319, respectively), inhibition of angiotensin-converting enzyme (ACE) with captopril, or calcitonin gene-related peptide (CGRP) receptor blockade (CGRP8-37) prevented postischemic LR but did not influence I/R-induced LA.
411 17307998 However, both postischemic LR and LA were largely abolished by concomitant AT(1) and AT(2) receptor blockade or chymase inhibition (with Y-40079).
412 17307998 Additionally, exogenously administered ANG II increased LR and LA, effects that were attenuated by pretreatment with a CGRP receptor antagonist or an NADPH oxidase inhibitor (apocynin).
413 17307998 Our work suggests that ANG II, formed by the enzymatic activity of ACE and chymase, plays an important role in inducing postischemic LR and LA, effects that involve the engagement of both AT(1) and AT(2) receptors and may be mediated by CGRP and NADPH oxidase.
414 17307998 Using an intravital microscopic approach in C57BL/6J mice, we showed that ANG II type I (AT(1)) or type II (AT(2)) receptor antagonism (with valsartan or PD-123319, respectively), inhibition of angiotensin-converting enzyme (ACE) with captopril, or calcitonin gene-related peptide (CGRP) receptor blockade (CGRP8-37) prevented postischemic LR but did not influence I/R-induced LA.
415 17307998 However, both postischemic LR and LA were largely abolished by concomitant AT(1) and AT(2) receptor blockade or chymase inhibition (with Y-40079).
416 17307998 Additionally, exogenously administered ANG II increased LR and LA, effects that were attenuated by pretreatment with a CGRP receptor antagonist or an NADPH oxidase inhibitor (apocynin).
417 17307998 Our work suggests that ANG II, formed by the enzymatic activity of ACE and chymase, plays an important role in inducing postischemic LR and LA, effects that involve the engagement of both AT(1) and AT(2) receptors and may be mediated by CGRP and NADPH oxidase.
418 17320767 Total protein levels and phosphorylated levels of p47phox (an NADPH oxidase subunit) were increased in VSMC after high glucose exposure.
419 17337254 The PPARgamma ligand, rosiglitazone, reduces vascular oxidative stress and NADPH oxidase expression in diabetic mice.
420 17337254 Because peroxisome proliferator-activated receptor gamma (PPARgamma) ligands reduced superoxide anion (O(2)(-.)) generation in vascular endothelial cells in vitro by reducing NADPH oxidase and increasing Cu/Zn superoxide dismutase (SOD) expression, the current study examined the effect of PPARgamma ligands on vascular NADPH oxidase and O(2)(-.) generation in vivo.
421 17337254 Aortic O(2)(-.) generation and mRNA levels of the NADPH oxidase subunits, Nox-1, Nox-2, and Nox-4 as well as Nox-4 protein expression were elevated in db(-)/db(-) compared to db(+)/db(-) mice, whereas aortic Cu/Zn SOD protein and PPARgamma mRNA levels were reduced in db(-)/db(-) mice.
422 17337254 Treatment with rosiglitazone for 1-week significantly reduced aortic O(2)(-.) production and the expression of Nox-1, 2, and 4 but failed to increase Cu/Zn SOD or PPARgamma in aortic tissue from db(-)/db(-) mice.
423 17337254 These data demonstrate that the vascular expression of Nox-1, 2, and 4 subunits of NADPH oxidase is increased in db(-)/db(-) mice and that short-term treatment with the PPARgamma agonist, rosiglitazone, has the potential to rapidly suppress vascular NADPH oxidase expression and O(2)(-.) production through mechanisms that do not appear to depend on correction of diabetic metabolic derangements.
424 17337254 The PPARgamma ligand, rosiglitazone, reduces vascular oxidative stress and NADPH oxidase expression in diabetic mice.
425 17337254 Because peroxisome proliferator-activated receptor gamma (PPARgamma) ligands reduced superoxide anion (O(2)(-.)) generation in vascular endothelial cells in vitro by reducing NADPH oxidase and increasing Cu/Zn superoxide dismutase (SOD) expression, the current study examined the effect of PPARgamma ligands on vascular NADPH oxidase and O(2)(-.) generation in vivo.
426 17337254 Aortic O(2)(-.) generation and mRNA levels of the NADPH oxidase subunits, Nox-1, Nox-2, and Nox-4 as well as Nox-4 protein expression were elevated in db(-)/db(-) compared to db(+)/db(-) mice, whereas aortic Cu/Zn SOD protein and PPARgamma mRNA levels were reduced in db(-)/db(-) mice.
427 17337254 Treatment with rosiglitazone for 1-week significantly reduced aortic O(2)(-.) production and the expression of Nox-1, 2, and 4 but failed to increase Cu/Zn SOD or PPARgamma in aortic tissue from db(-)/db(-) mice.
428 17337254 These data demonstrate that the vascular expression of Nox-1, 2, and 4 subunits of NADPH oxidase is increased in db(-)/db(-) mice and that short-term treatment with the PPARgamma agonist, rosiglitazone, has the potential to rapidly suppress vascular NADPH oxidase expression and O(2)(-.) production through mechanisms that do not appear to depend on correction of diabetic metabolic derangements.
429 17337254 The PPARgamma ligand, rosiglitazone, reduces vascular oxidative stress and NADPH oxidase expression in diabetic mice.
430 17337254 Because peroxisome proliferator-activated receptor gamma (PPARgamma) ligands reduced superoxide anion (O(2)(-.)) generation in vascular endothelial cells in vitro by reducing NADPH oxidase and increasing Cu/Zn superoxide dismutase (SOD) expression, the current study examined the effect of PPARgamma ligands on vascular NADPH oxidase and O(2)(-.) generation in vivo.
431 17337254 Aortic O(2)(-.) generation and mRNA levels of the NADPH oxidase subunits, Nox-1, Nox-2, and Nox-4 as well as Nox-4 protein expression were elevated in db(-)/db(-) compared to db(+)/db(-) mice, whereas aortic Cu/Zn SOD protein and PPARgamma mRNA levels were reduced in db(-)/db(-) mice.
432 17337254 Treatment with rosiglitazone for 1-week significantly reduced aortic O(2)(-.) production and the expression of Nox-1, 2, and 4 but failed to increase Cu/Zn SOD or PPARgamma in aortic tissue from db(-)/db(-) mice.
433 17337254 These data demonstrate that the vascular expression of Nox-1, 2, and 4 subunits of NADPH oxidase is increased in db(-)/db(-) mice and that short-term treatment with the PPARgamma agonist, rosiglitazone, has the potential to rapidly suppress vascular NADPH oxidase expression and O(2)(-.) production through mechanisms that do not appear to depend on correction of diabetic metabolic derangements.
434 17337254 The PPARgamma ligand, rosiglitazone, reduces vascular oxidative stress and NADPH oxidase expression in diabetic mice.
435 17337254 Because peroxisome proliferator-activated receptor gamma (PPARgamma) ligands reduced superoxide anion (O(2)(-.)) generation in vascular endothelial cells in vitro by reducing NADPH oxidase and increasing Cu/Zn superoxide dismutase (SOD) expression, the current study examined the effect of PPARgamma ligands on vascular NADPH oxidase and O(2)(-.) generation in vivo.
436 17337254 Aortic O(2)(-.) generation and mRNA levels of the NADPH oxidase subunits, Nox-1, Nox-2, and Nox-4 as well as Nox-4 protein expression were elevated in db(-)/db(-) compared to db(+)/db(-) mice, whereas aortic Cu/Zn SOD protein and PPARgamma mRNA levels were reduced in db(-)/db(-) mice.
437 17337254 Treatment with rosiglitazone for 1-week significantly reduced aortic O(2)(-.) production and the expression of Nox-1, 2, and 4 but failed to increase Cu/Zn SOD or PPARgamma in aortic tissue from db(-)/db(-) mice.
438 17337254 These data demonstrate that the vascular expression of Nox-1, 2, and 4 subunits of NADPH oxidase is increased in db(-)/db(-) mice and that short-term treatment with the PPARgamma agonist, rosiglitazone, has the potential to rapidly suppress vascular NADPH oxidase expression and O(2)(-.) production through mechanisms that do not appear to depend on correction of diabetic metabolic derangements.
439 17346751 Induction of reactive oxygen species from isolated rat glomeruli by protein kinase C activation and TNF-alpha stimulation, and effects of a phosphodiesterase inhibitor.
440 17346751 Constituent cells of the renal glomeruli have the capacity to release reactive oxygen species (ROS) upon stimulation of NADPH oxidase activated by protein kinase C (PKC).
441 17346751 Hyperglycemia and insulin resistance in the diabetic state are often associated with activation of PKC and tumor necrosis factor (TNF)-alpha, respectively.
442 17346751 The PKC inhibitor H-7, the NADPH oxidase inhibitor diphenylene iodonium and the phosphatidylinositol-3 (PI-3) kinase inhibitor wortmannin inhibited PMA-induced ROS production by 100%, 100% and 80%, respectively.
443 17346751 Induction of reactive oxygen species from isolated rat glomeruli by protein kinase C activation and TNF-alpha stimulation, and effects of a phosphodiesterase inhibitor.
444 17346751 Constituent cells of the renal glomeruli have the capacity to release reactive oxygen species (ROS) upon stimulation of NADPH oxidase activated by protein kinase C (PKC).
445 17346751 Hyperglycemia and insulin resistance in the diabetic state are often associated with activation of PKC and tumor necrosis factor (TNF)-alpha, respectively.
446 17346751 The PKC inhibitor H-7, the NADPH oxidase inhibitor diphenylene iodonium and the phosphatidylinositol-3 (PI-3) kinase inhibitor wortmannin inhibited PMA-induced ROS production by 100%, 100% and 80%, respectively.
447 17391917 Tat gp91ds, a chimeric peptide that inhibits NADPH oxidase activity, also failed to affect glucose uptake and we found no significant evidence of NADPH oxidase (subunits tested were Nox4, p22phox, gp91phox and p47phox mRNA) in skeletal muscle cells in culture.
448 17391917 Detailed studies on L6 cells demonstrate that the increase of glucose uptake is via a mechanism independent of phosphoinositide-3 kinase (PI3K)/Akt but dependent on AMP-activated protein kinase (AMPK).
449 17443690 Oxidative stress and increased eNOS and NADPH oxidase expression in mouse microvessel endothelial cells.
450 17443690 In this study, we tested the hypothesis that high glucose-induced oxidative stress was associated with changes in the expression of NADPH oxidase, superoxide dismutase (SOD) and endothelial nitric oxide synthase (eNOS).
451 17443690 Oxidative stress was assessed in cell cultures of mouse microvessel endothelial cells (MMECs) by fluorescence labelling with dihydroethidium, lucigenin-enhanced chemiluminescence and determining NADPH oxidase subunit and eNOS expression with real-time polymerase chain reaction protocol and Western blotting.
452 17443690 Oxidative stress and expression of the NADPH oxidase subunit, p22phox, were both increased, SOD1 and 3 expression lowered and eNOS significantly elevated in MMECs treated with 40 mM glucose for 72 h compared to low glucose medium.
453 17443690 Oxidative stress, p22phox mRNA, eNOS mRNA, and protein were lowered by concurrent incubation with sepiapterin.
454 17443690 Thus, exposure of MMECs to high glucose results in increased oxidative stress that is associated with increased eNOS and NADPH oxidase subunit expression, notably p22phox, and decreased expression of SOD1 and 3.
455 17443690 Oxidative stress and increased eNOS and NADPH oxidase expression in mouse microvessel endothelial cells.
456 17443690 In this study, we tested the hypothesis that high glucose-induced oxidative stress was associated with changes in the expression of NADPH oxidase, superoxide dismutase (SOD) and endothelial nitric oxide synthase (eNOS).
457 17443690 Oxidative stress was assessed in cell cultures of mouse microvessel endothelial cells (MMECs) by fluorescence labelling with dihydroethidium, lucigenin-enhanced chemiluminescence and determining NADPH oxidase subunit and eNOS expression with real-time polymerase chain reaction protocol and Western blotting.
458 17443690 Oxidative stress and expression of the NADPH oxidase subunit, p22phox, were both increased, SOD1 and 3 expression lowered and eNOS significantly elevated in MMECs treated with 40 mM glucose for 72 h compared to low glucose medium.
459 17443690 Oxidative stress, p22phox mRNA, eNOS mRNA, and protein were lowered by concurrent incubation with sepiapterin.
460 17443690 Thus, exposure of MMECs to high glucose results in increased oxidative stress that is associated with increased eNOS and NADPH oxidase subunit expression, notably p22phox, and decreased expression of SOD1 and 3.
461 17443690 Oxidative stress and increased eNOS and NADPH oxidase expression in mouse microvessel endothelial cells.
462 17443690 In this study, we tested the hypothesis that high glucose-induced oxidative stress was associated with changes in the expression of NADPH oxidase, superoxide dismutase (SOD) and endothelial nitric oxide synthase (eNOS).
463 17443690 Oxidative stress was assessed in cell cultures of mouse microvessel endothelial cells (MMECs) by fluorescence labelling with dihydroethidium, lucigenin-enhanced chemiluminescence and determining NADPH oxidase subunit and eNOS expression with real-time polymerase chain reaction protocol and Western blotting.
464 17443690 Oxidative stress and expression of the NADPH oxidase subunit, p22phox, were both increased, SOD1 and 3 expression lowered and eNOS significantly elevated in MMECs treated with 40 mM glucose for 72 h compared to low glucose medium.
465 17443690 Oxidative stress, p22phox mRNA, eNOS mRNA, and protein were lowered by concurrent incubation with sepiapterin.
466 17443690 Thus, exposure of MMECs to high glucose results in increased oxidative stress that is associated with increased eNOS and NADPH oxidase subunit expression, notably p22phox, and decreased expression of SOD1 and 3.
467 17443690 Oxidative stress and increased eNOS and NADPH oxidase expression in mouse microvessel endothelial cells.
468 17443690 In this study, we tested the hypothesis that high glucose-induced oxidative stress was associated with changes in the expression of NADPH oxidase, superoxide dismutase (SOD) and endothelial nitric oxide synthase (eNOS).
469 17443690 Oxidative stress was assessed in cell cultures of mouse microvessel endothelial cells (MMECs) by fluorescence labelling with dihydroethidium, lucigenin-enhanced chemiluminescence and determining NADPH oxidase subunit and eNOS expression with real-time polymerase chain reaction protocol and Western blotting.
470 17443690 Oxidative stress and expression of the NADPH oxidase subunit, p22phox, were both increased, SOD1 and 3 expression lowered and eNOS significantly elevated in MMECs treated with 40 mM glucose for 72 h compared to low glucose medium.
471 17443690 Oxidative stress, p22phox mRNA, eNOS mRNA, and protein were lowered by concurrent incubation with sepiapterin.
472 17443690 Thus, exposure of MMECs to high glucose results in increased oxidative stress that is associated with increased eNOS and NADPH oxidase subunit expression, notably p22phox, and decreased expression of SOD1 and 3.
473 17443690 Oxidative stress and increased eNOS and NADPH oxidase expression in mouse microvessel endothelial cells.
474 17443690 In this study, we tested the hypothesis that high glucose-induced oxidative stress was associated with changes in the expression of NADPH oxidase, superoxide dismutase (SOD) and endothelial nitric oxide synthase (eNOS).
475 17443690 Oxidative stress was assessed in cell cultures of mouse microvessel endothelial cells (MMECs) by fluorescence labelling with dihydroethidium, lucigenin-enhanced chemiluminescence and determining NADPH oxidase subunit and eNOS expression with real-time polymerase chain reaction protocol and Western blotting.
476 17443690 Oxidative stress and expression of the NADPH oxidase subunit, p22phox, were both increased, SOD1 and 3 expression lowered and eNOS significantly elevated in MMECs treated with 40 mM glucose for 72 h compared to low glucose medium.
477 17443690 Oxidative stress, p22phox mRNA, eNOS mRNA, and protein were lowered by concurrent incubation with sepiapterin.
478 17443690 Thus, exposure of MMECs to high glucose results in increased oxidative stress that is associated with increased eNOS and NADPH oxidase subunit expression, notably p22phox, and decreased expression of SOD1 and 3.
479 17462535 AGE differentially regulated VSMC NADPH oxidase catalytic subunits, stimulating the transcription of Nox1 (201+/-12.7%, p<0.0001), while having no effect on Nox4.
480 17462535 Regarding the source of NO, AGE stimulated inducible nitric oxide synthase mRNA (1 vs 9.7+/-3.0, p=0.046), which was abolished by a NF-kappaB inhibitor, SOD, catalase, or siRNA against Nox1.
481 17462535 This study establishes that AGE activate iNOS in VSMC through a ROS-sensitive, NF-kappaB-dependent mechanism involving ROS generation by a Nox1-based oxidase.
482 17508912 Angiotensin II Type 1 receptor antagonism mediates uncoupling protein 2-driven oxidative stress and ameliorates pancreatic islet beta-cell function in young Type 2 diabetic mice.
483 17508912 Moreover, angiotensin II type 1 receptor (AT1R) antagonism improves beta-cell function and glucose tolerance in young T2DM mice and delays the onset of diabetes.
484 17508912 Losartan selectively inhibited oxidative stress via downregulation of NADPH oxidase; this in turn suppressed UCP2 expression, thus improving beta-cell insulin secretion and decreasing apoptosis-induced beta-cell mass loss in db/db mouse islets.
485 17508912 These data indicate that islet AT1R activation in young diabetic mice can generate progressive islet beta-cell failure through UCP-driven oxidative damage.
486 17508916 Hyperglycemia, elevated circulating fatty acids, inadequate local activation of renin angiotensin system, and chronic low grade inflammation are conditions that coexist in the CMS and DM2 that turn out to be deleterious for the beta-cell functioning and existance.
487 17508916 Activation of the NADPH oxidase complex secondary to angiotensin II stimulation is of interest, as its pharmacological blockade has beneficial effects.
488 17508916 New knowledge about the intimate mechanisms of oxidative-stress induced beta-cell failure will provide new therapeutic targets against CMS and DM2.
489 17533199 NADPH oxidase contributes to vascular inflammation, insulin resistance, and remodeling in the transgenic (mRen2) rat.
490 17533199 Angiotensin II, acting through its angiotensin type 1 receptor, inhibits the actions of insulin in the vasculature which may lead to deleterious effects such as vascular inflammation, remodeling, endothelial dysfunction, and insulin resistance.
491 17533199 To explore the impact of angiotensin II on insulin signaling, NADPH oxidase-derived reactive oxygen species formation, vascular inflammation, apoptosis, and remodeling, we used transgenic TG(mRen2)27 (Ren2) rats, which harbor the mouse renin transgene and exhibits elevated tissue angiotensin II levels.
492 17533199 Compared with Sprague-Dawley controls, Ren2 aortas exhibited greater NADPH oxidase activity, reactive oxygen species levels, C-reactive protein, tumor necrosis factor-alpha expression, apoptosis, and wall thickness, which were significantly attenuated by in vivo treatment with angiotensin type 1 receptor blockade (valsartan) or the superoxide dismutase/catalase mimetic (tempol).
493 17533199 There was substantially diminished Akt and endothelial NO synthase activation in Ren2 aortas in response to in vivo insulin stimulation, and this was significantly improved by in vivo treatment with valsartan or tempol.
494 17533199 Further, there was reduced insulin induced Akt activation and increased tumor necrosis factor-alpha levels in vascular smooth muscle cells from Ren2 and Sprague-Dawley rats treated with angiotensin II, abnormalities that were abrogated by angiotensin type 1 receptor blockade with valsartan or antioxidant N-acetylcysteine.
495 17533199 Collectively, these data suggest that increased angiotensin type 1 receptor/NADPH oxidase activation/reactive oxygen species contribute to vascular insulin resistance, endothelial dysfunction, apoptosis, and inflammation.
496 17533199 NADPH oxidase contributes to vascular inflammation, insulin resistance, and remodeling in the transgenic (mRen2) rat.
497 17533199 Angiotensin II, acting through its angiotensin type 1 receptor, inhibits the actions of insulin in the vasculature which may lead to deleterious effects such as vascular inflammation, remodeling, endothelial dysfunction, and insulin resistance.
498 17533199 To explore the impact of angiotensin II on insulin signaling, NADPH oxidase-derived reactive oxygen species formation, vascular inflammation, apoptosis, and remodeling, we used transgenic TG(mRen2)27 (Ren2) rats, which harbor the mouse renin transgene and exhibits elevated tissue angiotensin II levels.
499 17533199 Compared with Sprague-Dawley controls, Ren2 aortas exhibited greater NADPH oxidase activity, reactive oxygen species levels, C-reactive protein, tumor necrosis factor-alpha expression, apoptosis, and wall thickness, which were significantly attenuated by in vivo treatment with angiotensin type 1 receptor blockade (valsartan) or the superoxide dismutase/catalase mimetic (tempol).
500 17533199 There was substantially diminished Akt and endothelial NO synthase activation in Ren2 aortas in response to in vivo insulin stimulation, and this was significantly improved by in vivo treatment with valsartan or tempol.
501 17533199 Further, there was reduced insulin induced Akt activation and increased tumor necrosis factor-alpha levels in vascular smooth muscle cells from Ren2 and Sprague-Dawley rats treated with angiotensin II, abnormalities that were abrogated by angiotensin type 1 receptor blockade with valsartan or antioxidant N-acetylcysteine.
502 17533199 Collectively, these data suggest that increased angiotensin type 1 receptor/NADPH oxidase activation/reactive oxygen species contribute to vascular insulin resistance, endothelial dysfunction, apoptosis, and inflammation.
503 17533199 NADPH oxidase contributes to vascular inflammation, insulin resistance, and remodeling in the transgenic (mRen2) rat.
504 17533199 Angiotensin II, acting through its angiotensin type 1 receptor, inhibits the actions of insulin in the vasculature which may lead to deleterious effects such as vascular inflammation, remodeling, endothelial dysfunction, and insulin resistance.
505 17533199 To explore the impact of angiotensin II on insulin signaling, NADPH oxidase-derived reactive oxygen species formation, vascular inflammation, apoptosis, and remodeling, we used transgenic TG(mRen2)27 (Ren2) rats, which harbor the mouse renin transgene and exhibits elevated tissue angiotensin II levels.
506 17533199 Compared with Sprague-Dawley controls, Ren2 aortas exhibited greater NADPH oxidase activity, reactive oxygen species levels, C-reactive protein, tumor necrosis factor-alpha expression, apoptosis, and wall thickness, which were significantly attenuated by in vivo treatment with angiotensin type 1 receptor blockade (valsartan) or the superoxide dismutase/catalase mimetic (tempol).
507 17533199 There was substantially diminished Akt and endothelial NO synthase activation in Ren2 aortas in response to in vivo insulin stimulation, and this was significantly improved by in vivo treatment with valsartan or tempol.
508 17533199 Further, there was reduced insulin induced Akt activation and increased tumor necrosis factor-alpha levels in vascular smooth muscle cells from Ren2 and Sprague-Dawley rats treated with angiotensin II, abnormalities that were abrogated by angiotensin type 1 receptor blockade with valsartan or antioxidant N-acetylcysteine.
509 17533199 Collectively, these data suggest that increased angiotensin type 1 receptor/NADPH oxidase activation/reactive oxygen species contribute to vascular insulin resistance, endothelial dysfunction, apoptosis, and inflammation.
510 17533199 NADPH oxidase contributes to vascular inflammation, insulin resistance, and remodeling in the transgenic (mRen2) rat.
511 17533199 Angiotensin II, acting through its angiotensin type 1 receptor, inhibits the actions of insulin in the vasculature which may lead to deleterious effects such as vascular inflammation, remodeling, endothelial dysfunction, and insulin resistance.
512 17533199 To explore the impact of angiotensin II on insulin signaling, NADPH oxidase-derived reactive oxygen species formation, vascular inflammation, apoptosis, and remodeling, we used transgenic TG(mRen2)27 (Ren2) rats, which harbor the mouse renin transgene and exhibits elevated tissue angiotensin II levels.
513 17533199 Compared with Sprague-Dawley controls, Ren2 aortas exhibited greater NADPH oxidase activity, reactive oxygen species levels, C-reactive protein, tumor necrosis factor-alpha expression, apoptosis, and wall thickness, which were significantly attenuated by in vivo treatment with angiotensin type 1 receptor blockade (valsartan) or the superoxide dismutase/catalase mimetic (tempol).
514 17533199 There was substantially diminished Akt and endothelial NO synthase activation in Ren2 aortas in response to in vivo insulin stimulation, and this was significantly improved by in vivo treatment with valsartan or tempol.
515 17533199 Further, there was reduced insulin induced Akt activation and increased tumor necrosis factor-alpha levels in vascular smooth muscle cells from Ren2 and Sprague-Dawley rats treated with angiotensin II, abnormalities that were abrogated by angiotensin type 1 receptor blockade with valsartan or antioxidant N-acetylcysteine.
516 17533199 Collectively, these data suggest that increased angiotensin type 1 receptor/NADPH oxidase activation/reactive oxygen species contribute to vascular insulin resistance, endothelial dysfunction, apoptosis, and inflammation.
517 17581838 Improvement of insulin sensitivity by antagonism of the renin-angiotensin system.
518 17581838 Although the etiology of this skeletal muscle insulin resistance is multifactorial, there is accumulating evidence that one contributor is overactivity of the renin-angiotensin system (RAS).
519 17581838 Evidence from animal model and cultured skeletal muscle cell line studies indicates ANG II can induce insulin resistance.
520 17581838 Chronic ANG II infusion into an insulin-sensitive rat produces a markedly insulin-resistant state that is associated with a negative impact of ROS on the skeletal muscle glucose transport system.
521 17581838 ANG II treatment of L6 myocytes causes impaired insulin receptor substrate (IRS)-1-dependent insulin signaling that is accompanied by augmentation of NADPH oxidase-mediated ROS production.
522 17581838 The TG(mREN2)27 rat displays whole body and skeletal muscle insulin resistance that is associated with local oxidative stress and a significant reduction in the functionality of the insulin receptor (IR)/IRS-1-dependent insulin signaling.
523 17581838 Treatment with a selective ANG II type 1 receptor antagonist leads to improvements in whole body insulin sensitivity, enhanced insulin-stimulated glucose transport in muscle, and reduced local oxidative stress.
524 17584843 While this source is undoubtably important, we provide additional information and evidence for NADPH oxidase-dependent generation of ROS both in pancreatic beta-cells and in insulin sensitive cells.
525 17584843 While mitochondrial ROS generation may be important for regulation of mitochondrial uncoupling protein (UCP) activity and thus disruption of cellular energy metabolism, the NADPH oxidase associated ROS may alter parameters of signal transduction, insulin secretion, insulin action and cell proliferation or cell death.
526 17584843 While this source is undoubtably important, we provide additional information and evidence for NADPH oxidase-dependent generation of ROS both in pancreatic beta-cells and in insulin sensitive cells.
527 17584843 While mitochondrial ROS generation may be important for regulation of mitochondrial uncoupling protein (UCP) activity and thus disruption of cellular energy metabolism, the NADPH oxidase associated ROS may alter parameters of signal transduction, insulin secretion, insulin action and cell proliferation or cell death.
528 17652361 Role of NADPH oxidase and ANG II in diabetes-induced retinal leukostasis.
529 17652361 ANG II increased retinal leukostasis from 0.3 +/- 0.5 to 3.7 +/- 0.4 leukocytes/ mm(2) (P < 0.01), and these changes were markedly decreased by treatment with tempol + NAC or apocynin, and also by a blocking antibody against vascular endothelial growth factor given intravitreally (P < 0.01).
530 17652361 Thus increases in intravitreal ANG II can induce retinal leukostasis, which appears to be mediated via increasing superoxide generation by NAD(P)H oxidase, and by VEGF.
531 17665974 High glucose-induced protein kinase C signalling or renal angiotensin II signalling increases the membrane translocation of cytosolic component p47phox.
532 17665974 NADPH oxidase-derived reactive oxygen species (ROS) in the podocytes damage the glomerular basement membrane and the slit diaphragm causing proteinuria, and mesangial and glomerular endothelial NADPH oxidase increase TGF-beta and cause collagen and fibronectin accumulation.
533 17665974 Tubular NADPH oxidase stimulated by angiotensin II or aldosterone contributes to sodium retention and to tubulointerstitial damage.
534 17665974 Thus, inhibition of the renal renin-angiotensin II-aldosterone system with angiotensin-converting enzyme inhibitor, angiotensin II type 1 receptor blocker or selective aldosterone inhibitor indirectly suppresses NADPH oxidase reducing renal ROS, proteinuria and glomerulosclerosis.
535 17665974 Statins are also effective in blocking the membrane translocation of Rac, especially in diabetes with hypercholesterolemia where ROS is produced by the intrinsic NADPH oxidase and by the activated macrophages.
536 17665974 A medical herb, picrorhiza, inhibits the membrane translocation of p47phox, is a specific inhibitor of NADPH oxidase and, more so than superoxide dismutase mimetics, may be a promising strategy for the treatment of diabetic nephropathy.
537 17665974 High glucose-induced protein kinase C signalling or renal angiotensin II signalling increases the membrane translocation of cytosolic component p47phox.
538 17665974 NADPH oxidase-derived reactive oxygen species (ROS) in the podocytes damage the glomerular basement membrane and the slit diaphragm causing proteinuria, and mesangial and glomerular endothelial NADPH oxidase increase TGF-beta and cause collagen and fibronectin accumulation.
539 17665974 Tubular NADPH oxidase stimulated by angiotensin II or aldosterone contributes to sodium retention and to tubulointerstitial damage.
540 17665974 Thus, inhibition of the renal renin-angiotensin II-aldosterone system with angiotensin-converting enzyme inhibitor, angiotensin II type 1 receptor blocker or selective aldosterone inhibitor indirectly suppresses NADPH oxidase reducing renal ROS, proteinuria and glomerulosclerosis.
541 17665974 Statins are also effective in blocking the membrane translocation of Rac, especially in diabetes with hypercholesterolemia where ROS is produced by the intrinsic NADPH oxidase and by the activated macrophages.
542 17665974 A medical herb, picrorhiza, inhibits the membrane translocation of p47phox, is a specific inhibitor of NADPH oxidase and, more so than superoxide dismutase mimetics, may be a promising strategy for the treatment of diabetic nephropathy.
543 17665974 High glucose-induced protein kinase C signalling or renal angiotensin II signalling increases the membrane translocation of cytosolic component p47phox.
544 17665974 NADPH oxidase-derived reactive oxygen species (ROS) in the podocytes damage the glomerular basement membrane and the slit diaphragm causing proteinuria, and mesangial and glomerular endothelial NADPH oxidase increase TGF-beta and cause collagen and fibronectin accumulation.
545 17665974 Tubular NADPH oxidase stimulated by angiotensin II or aldosterone contributes to sodium retention and to tubulointerstitial damage.
546 17665974 Thus, inhibition of the renal renin-angiotensin II-aldosterone system with angiotensin-converting enzyme inhibitor, angiotensin II type 1 receptor blocker or selective aldosterone inhibitor indirectly suppresses NADPH oxidase reducing renal ROS, proteinuria and glomerulosclerosis.
547 17665974 Statins are also effective in blocking the membrane translocation of Rac, especially in diabetes with hypercholesterolemia where ROS is produced by the intrinsic NADPH oxidase and by the activated macrophages.
548 17665974 A medical herb, picrorhiza, inhibits the membrane translocation of p47phox, is a specific inhibitor of NADPH oxidase and, more so than superoxide dismutase mimetics, may be a promising strategy for the treatment of diabetic nephropathy.
549 17665974 High glucose-induced protein kinase C signalling or renal angiotensin II signalling increases the membrane translocation of cytosolic component p47phox.
550 17665974 NADPH oxidase-derived reactive oxygen species (ROS) in the podocytes damage the glomerular basement membrane and the slit diaphragm causing proteinuria, and mesangial and glomerular endothelial NADPH oxidase increase TGF-beta and cause collagen and fibronectin accumulation.
551 17665974 Tubular NADPH oxidase stimulated by angiotensin II or aldosterone contributes to sodium retention and to tubulointerstitial damage.
552 17665974 Thus, inhibition of the renal renin-angiotensin II-aldosterone system with angiotensin-converting enzyme inhibitor, angiotensin II type 1 receptor blocker or selective aldosterone inhibitor indirectly suppresses NADPH oxidase reducing renal ROS, proteinuria and glomerulosclerosis.
553 17665974 Statins are also effective in blocking the membrane translocation of Rac, especially in diabetes with hypercholesterolemia where ROS is produced by the intrinsic NADPH oxidase and by the activated macrophages.
554 17665974 A medical herb, picrorhiza, inhibits the membrane translocation of p47phox, is a specific inhibitor of NADPH oxidase and, more so than superoxide dismutase mimetics, may be a promising strategy for the treatment of diabetic nephropathy.
555 17665974 High glucose-induced protein kinase C signalling or renal angiotensin II signalling increases the membrane translocation of cytosolic component p47phox.
556 17665974 NADPH oxidase-derived reactive oxygen species (ROS) in the podocytes damage the glomerular basement membrane and the slit diaphragm causing proteinuria, and mesangial and glomerular endothelial NADPH oxidase increase TGF-beta and cause collagen and fibronectin accumulation.
557 17665974 Tubular NADPH oxidase stimulated by angiotensin II or aldosterone contributes to sodium retention and to tubulointerstitial damage.
558 17665974 Thus, inhibition of the renal renin-angiotensin II-aldosterone system with angiotensin-converting enzyme inhibitor, angiotensin II type 1 receptor blocker or selective aldosterone inhibitor indirectly suppresses NADPH oxidase reducing renal ROS, proteinuria and glomerulosclerosis.
559 17665974 Statins are also effective in blocking the membrane translocation of Rac, especially in diabetes with hypercholesterolemia where ROS is produced by the intrinsic NADPH oxidase and by the activated macrophages.
560 17665974 A medical herb, picrorhiza, inhibits the membrane translocation of p47phox, is a specific inhibitor of NADPH oxidase and, more so than superoxide dismutase mimetics, may be a promising strategy for the treatment of diabetic nephropathy.
561 17959934 Inhibition of NADPH oxidase prevents advanced glycation end product-mediated damage in diabetic nephropathy through a protein kinase C-alpha-dependent pathway.
562 17961514 Gene expression of P47phox, p67phox, and PU.1 were also activated, accompanying increased 8-OHdG in urine and kidney, demonstrating that glomerular SREBP-1c could directly cause oxidative stress through induced NADPH oxidase.
563 18157951 The following parameters were measured: 1) serum glucose, urea, creatinine and hydroxyl free radical (HFR) levels; 2) blood glutathione redox state; 3) urine albumin concentration; 4) hepatic and renal HFR levels, GSH/GSSG ratios, cysteine contents and the activities of the enzymes of glutathione metabolism; and 5) the activity of renal NADPH oxidase.
564 18158642 Regulation of NADPH oxidase subunit p22(phox) by NF-kB in human aortic smooth muscle cells.
565 18158642 Here we investigate the role of NF-kB in the regulation of p22(phox) subunit and NADPH oxidase activity, in human aortic smooth muscle cells.
566 18158642 Overexpression of p65/RelA or IKKbeta up-regulated p22(phox) gene promoter activity.
567 18158642 Transcription factor pull-down assays demonstrated the physical interaction of p65/RelA protein with predicted NF-kB binding sites.
568 18158642 Real time PCR and Western blotting analysis showed that p22(phox) mRNA and protein expression are significantly down-regulated by NF-kB decoy oligodeoxynucleotides and N-alpha-tosyl-l-phenylalanine chloromethyl ketone (TPCK).
569 18158642 Regulation of NADPH oxidase by NF-kB may represent a possible mechanism whereby pro-inflammatory factors induce oxidative stress in atherosclerosis, hypertension, diabetes, stroke or heart failure.
570 18158642 Regulation of NADPH oxidase subunit p22(phox) by NF-kB in human aortic smooth muscle cells.
571 18158642 Here we investigate the role of NF-kB in the regulation of p22(phox) subunit and NADPH oxidase activity, in human aortic smooth muscle cells.
572 18158642 Overexpression of p65/RelA or IKKbeta up-regulated p22(phox) gene promoter activity.
573 18158642 Transcription factor pull-down assays demonstrated the physical interaction of p65/RelA protein with predicted NF-kB binding sites.
574 18158642 Real time PCR and Western blotting analysis showed that p22(phox) mRNA and protein expression are significantly down-regulated by NF-kB decoy oligodeoxynucleotides and N-alpha-tosyl-l-phenylalanine chloromethyl ketone (TPCK).
575 18158642 Regulation of NADPH oxidase by NF-kB may represent a possible mechanism whereby pro-inflammatory factors induce oxidative stress in atherosclerosis, hypertension, diabetes, stroke or heart failure.
576 18158642 Regulation of NADPH oxidase subunit p22(phox) by NF-kB in human aortic smooth muscle cells.
577 18158642 Here we investigate the role of NF-kB in the regulation of p22(phox) subunit and NADPH oxidase activity, in human aortic smooth muscle cells.
578 18158642 Overexpression of p65/RelA or IKKbeta up-regulated p22(phox) gene promoter activity.
579 18158642 Transcription factor pull-down assays demonstrated the physical interaction of p65/RelA protein with predicted NF-kB binding sites.
580 18158642 Real time PCR and Western blotting analysis showed that p22(phox) mRNA and protein expression are significantly down-regulated by NF-kB decoy oligodeoxynucleotides and N-alpha-tosyl-l-phenylalanine chloromethyl ketone (TPCK).
581 18158642 Regulation of NADPH oxidase by NF-kB may represent a possible mechanism whereby pro-inflammatory factors induce oxidative stress in atherosclerosis, hypertension, diabetes, stroke or heart failure.
582 18184111 NADPH oxidase CYBA polymorphisms, oxidative stress and cardiovascular diseases.
583 18184111 Common genetic polymorphisms within the promoter and exonic sequences of CYBA, the gene that encodes the p22(phox) subunit of NADPH oxidase, have been characterized in the context of cardiovascular diseases.
584 18184111 NADPH oxidase CYBA polymorphisms, oxidative stress and cardiovascular diseases.
585 18184111 Common genetic polymorphisms within the promoter and exonic sequences of CYBA, the gene that encodes the p22(phox) subunit of NADPH oxidase, have been characterized in the context of cardiovascular diseases.
586 18192338 Renal (pro)renin receptor upregulation in diabetic rats through enhanced angiotensin AT1 receptor and NADPH oxidase activity.
587 18192338 Recent studies have demonstrated the presence of the (pro)renin receptor (PRR) in the glomerular mesangium and the subendothelial layer of the renal arteries.
588 18192338 We hypothesized that diabetes upregulates PRR expression through enhanced angiotensin subtype 1 (AT1) receptor-NADPH oxidase cascade activity.
589 18192338 Using real-time polymerase chain reaction, Western blot analysis and immunostaining, we studied renal localization of the PRR in the streptozotocin-induced diabetic rat model and in response to 1 week of treatment with the AT1 receptor blocker valsartan (10 mg kg(-1) day(-1)), the angiotensin AT2 receptor blocker PD123319 (0.5 mg kg(-1) day(-1)) or the NADPH oxidase inhibitor diphenylene iodonium (DPI; 0.5 mg kg(-1) day(-1)) 6 weeks post-induction of diabetes.
590 18192338 The AT2 blocker PD123319 did not have significant effects on PRR mRNA (157%) or protein expression (200%) in the kidneys of diabetic rats.
591 18192338 Expression of the PRR is upregulated in diabetes via enhancement of AT1 receptor-NADPH oxidase activity.
592 18192338 Renal (pro)renin receptor upregulation in diabetic rats through enhanced angiotensin AT1 receptor and NADPH oxidase activity.
593 18192338 Recent studies have demonstrated the presence of the (pro)renin receptor (PRR) in the glomerular mesangium and the subendothelial layer of the renal arteries.
594 18192338 We hypothesized that diabetes upregulates PRR expression through enhanced angiotensin subtype 1 (AT1) receptor-NADPH oxidase cascade activity.
595 18192338 Using real-time polymerase chain reaction, Western blot analysis and immunostaining, we studied renal localization of the PRR in the streptozotocin-induced diabetic rat model and in response to 1 week of treatment with the AT1 receptor blocker valsartan (10 mg kg(-1) day(-1)), the angiotensin AT2 receptor blocker PD123319 (0.5 mg kg(-1) day(-1)) or the NADPH oxidase inhibitor diphenylene iodonium (DPI; 0.5 mg kg(-1) day(-1)) 6 weeks post-induction of diabetes.
596 18192338 The AT2 blocker PD123319 did not have significant effects on PRR mRNA (157%) or protein expression (200%) in the kidneys of diabetic rats.
597 18192338 Expression of the PRR is upregulated in diabetes via enhancement of AT1 receptor-NADPH oxidase activity.
598 18192338 Renal (pro)renin receptor upregulation in diabetic rats through enhanced angiotensin AT1 receptor and NADPH oxidase activity.
599 18192338 Recent studies have demonstrated the presence of the (pro)renin receptor (PRR) in the glomerular mesangium and the subendothelial layer of the renal arteries.
600 18192338 We hypothesized that diabetes upregulates PRR expression through enhanced angiotensin subtype 1 (AT1) receptor-NADPH oxidase cascade activity.
601 18192338 Using real-time polymerase chain reaction, Western blot analysis and immunostaining, we studied renal localization of the PRR in the streptozotocin-induced diabetic rat model and in response to 1 week of treatment with the AT1 receptor blocker valsartan (10 mg kg(-1) day(-1)), the angiotensin AT2 receptor blocker PD123319 (0.5 mg kg(-1) day(-1)) or the NADPH oxidase inhibitor diphenylene iodonium (DPI; 0.5 mg kg(-1) day(-1)) 6 weeks post-induction of diabetes.
602 18192338 The AT2 blocker PD123319 did not have significant effects on PRR mRNA (157%) or protein expression (200%) in the kidneys of diabetic rats.
603 18192338 Expression of the PRR is upregulated in diabetes via enhancement of AT1 receptor-NADPH oxidase activity.
604 18192338 Renal (pro)renin receptor upregulation in diabetic rats through enhanced angiotensin AT1 receptor and NADPH oxidase activity.
605 18192338 Recent studies have demonstrated the presence of the (pro)renin receptor (PRR) in the glomerular mesangium and the subendothelial layer of the renal arteries.
606 18192338 We hypothesized that diabetes upregulates PRR expression through enhanced angiotensin subtype 1 (AT1) receptor-NADPH oxidase cascade activity.
607 18192338 Using real-time polymerase chain reaction, Western blot analysis and immunostaining, we studied renal localization of the PRR in the streptozotocin-induced diabetic rat model and in response to 1 week of treatment with the AT1 receptor blocker valsartan (10 mg kg(-1) day(-1)), the angiotensin AT2 receptor blocker PD123319 (0.5 mg kg(-1) day(-1)) or the NADPH oxidase inhibitor diphenylene iodonium (DPI; 0.5 mg kg(-1) day(-1)) 6 weeks post-induction of diabetes.
608 18192338 The AT2 blocker PD123319 did not have significant effects on PRR mRNA (157%) or protein expression (200%) in the kidneys of diabetic rats.
609 18192338 Expression of the PRR is upregulated in diabetes via enhancement of AT1 receptor-NADPH oxidase activity.
610 18220582 The anti-apoptotic action of HGF was due to bcl-2-upregulation and the phosphatidylinositol 3-kinase pathway, which is involved in Akt activation.
611 18220582 NADPH oxidase can be activated in hyperglycemia through the protein kinase C pathway.
612 18220582 From the viewpoint of these molecular mechanisms, HMG-CoA reductase inhibitors (statins) might inhibit the high glucose-induced NADPH oxidase activation through inhibition of Rac activity and finally prevent the increase in ROS production in diabetes.
613 18220582 The anti-apoptotic action of HGF was due to bcl-2-upregulation and the phosphatidylinositol 3-kinase pathway, which is involved in Akt activation.
614 18220582 NADPH oxidase can be activated in hyperglycemia through the protein kinase C pathway.
615 18220582 From the viewpoint of these molecular mechanisms, HMG-CoA reductase inhibitors (statins) might inhibit the high glucose-induced NADPH oxidase activation through inhibition of Rac activity and finally prevent the increase in ROS production in diabetes.
616 18220656 Cellular mechanisms include glucose-induced excessive formation of reactive oxygen species, increased glucose flux through polyol pathway and pentose phosphate shunt, formation of advanced glycation end-products and activation of protein kinase C and NADPH oxidase.
617 18220667 Multiple signal pathways including NO, Jak/STAT, p38 MAP kinase, ET-1 and NADPH oxidase have been implicated to participate in the cardiac regulatory response of leptin.
618 18296557 In addition, the expression of MCP-1 was downregulated in MPM isolated from 12/15-LO knockout mice. 12(S)-HETE-induced MCP-1 mRNA expression was attenuated by specific inhibitors of protein kinase C (PKC) and p38 mitogen-activated protein kinase (p38). 12(S)-HETE also directly activated NADPH oxidase activity.
619 18296557 Two NADPH oxidase inhibitors, apocynin and diphenyleneiodonium chloride, blocked 12(S)-HETE-induced MCP-1 mRNA.
620 18296557 These data show that 12(S)-HETE increases MCP-1 expression by inducing PKC, p38, and NADPH oxidase activity.
621 18296557 In addition, the expression of MCP-1 was downregulated in MPM isolated from 12/15-LO knockout mice. 12(S)-HETE-induced MCP-1 mRNA expression was attenuated by specific inhibitors of protein kinase C (PKC) and p38 mitogen-activated protein kinase (p38). 12(S)-HETE also directly activated NADPH oxidase activity.
622 18296557 Two NADPH oxidase inhibitors, apocynin and diphenyleneiodonium chloride, blocked 12(S)-HETE-induced MCP-1 mRNA.
623 18296557 These data show that 12(S)-HETE increases MCP-1 expression by inducing PKC, p38, and NADPH oxidase activity.
624 18296557 In addition, the expression of MCP-1 was downregulated in MPM isolated from 12/15-LO knockout mice. 12(S)-HETE-induced MCP-1 mRNA expression was attenuated by specific inhibitors of protein kinase C (PKC) and p38 mitogen-activated protein kinase (p38). 12(S)-HETE also directly activated NADPH oxidase activity.
625 18296557 Two NADPH oxidase inhibitors, apocynin and diphenyleneiodonium chloride, blocked 12(S)-HETE-induced MCP-1 mRNA.
626 18296557 These data show that 12(S)-HETE increases MCP-1 expression by inducing PKC, p38, and NADPH oxidase activity.
627 18321209 ROS-producing enzymes involved in increased oxidative stress within vascular tissue include NADPH oxidase, xanthine oxidase, and mitochondrial superoxide producing enzymes.
628 18378570 Role of NADPH oxidase and Stat3 in statin-mediated protection against diabetic retinopathy.
629 18382884 Superoxide sources include the NADPH oxidase, xanthine oxidase, and mitochondria.
630 18382884 Superoxide produced by the NADPH oxidase may react with NO released by the endothelial nitric oxide synthase (eNOS) thereby generating peroxynitrite (ONOO-), leading to eNOS uncoupling and therefore eNOS-mediated superoxide production.
631 18382884 Superoxide sources include the NADPH oxidase, xanthine oxidase, and mitochondria.
632 18382884 Superoxide produced by the NADPH oxidase may react with NO released by the endothelial nitric oxide synthase (eNOS) thereby generating peroxynitrite (ONOO-), leading to eNOS uncoupling and therefore eNOS-mediated superoxide production.
633 18390927 Hyperglycemia associated with diabetes mellitus results in the priming of neutrophils leading to oxidative stress that is, in part, responsible for diabetic complications. p47phox, a NADPH oxidase cytosolic subunit, is a key protein in the assembly of the NADPH oxidase leading to superoxide generation.
634 18390927 In resting neutrophils from diabetic subjects, p47phox prematurely translocates to the cell membrane and preassembles with p22phox, a NADPH oxidase membrane subunit.
635 18390927 This premature p47phox translocation and preassembly with p22phox were also observed in HL-60 cells cultured with high glucose (HG; 25 mM) and with the specific ligand for the receptor for advanced glycation end products (RAGE), S100B.
636 18390927 Phosphorylation of ERK1/2, but not p38 MAPK, was the primary signaling pathway, as evidenced by PD98059 suppressing the translocation of p47phox in HL-60 cells incubated with HG and S100B.
637 18390927 These data suggest that HG and increased AGE prime neutrophils and increase oxidative stress inducing the translocation of p47phox to the cell membrane and preassembly with p22phox by stimulating a RAGE-ERK1/2 pathway.
638 18390927 Hyperglycemia associated with diabetes mellitus results in the priming of neutrophils leading to oxidative stress that is, in part, responsible for diabetic complications. p47phox, a NADPH oxidase cytosolic subunit, is a key protein in the assembly of the NADPH oxidase leading to superoxide generation.
639 18390927 In resting neutrophils from diabetic subjects, p47phox prematurely translocates to the cell membrane and preassembles with p22phox, a NADPH oxidase membrane subunit.
640 18390927 This premature p47phox translocation and preassembly with p22phox were also observed in HL-60 cells cultured with high glucose (HG; 25 mM) and with the specific ligand for the receptor for advanced glycation end products (RAGE), S100B.
641 18390927 Phosphorylation of ERK1/2, but not p38 MAPK, was the primary signaling pathway, as evidenced by PD98059 suppressing the translocation of p47phox in HL-60 cells incubated with HG and S100B.
642 18390927 These data suggest that HG and increased AGE prime neutrophils and increase oxidative stress inducing the translocation of p47phox to the cell membrane and preassembly with p22phox by stimulating a RAGE-ERK1/2 pathway.
643 18423412 Inhibition of NADPH oxidase-related oxidative stress-triggered signaling by honokiol suppresses high glucose-induced human endothelial cell apoptosis.
644 18423412 Here we explored the efficacy of honokiol, a small molecular weight natural product, on NADPH oxidase-related oxidative stress-mediated NF-kappaB-regulated signaling and apoptosis in human umbilical vein endothelial cells (HUVECs) under hyperglycemic conditions.
645 18423412 Submicromolar concentrations of honokiol suppressed the increases of NADPH oxidase activity, Rac-1 phosphorylation, p22(phox) protein expression, and reactive oxygen species production in high glucose (HG)-stimulated HUVECs.
646 18423412 The degradation of IkappaBalpha and increase of NF-kappaB activity were inhibited by honokiol in HG-treated HUVECs.
647 18423412 Moreover, honokiol (0.125-1 microM) also suppressed HG-induced cyclooxygenase (COX)-2 upregulation and prostaglandin E(2) production in HUVECs.
648 18423412 These results imply that inhibition of NADPH oxidase-related oxidative stress by honokiol suppresses the HG-induced NF-kappaB-regulated COX-2 upregulation, apoptosis, and cell death in HUVECs, which has the potential to be developed as a therapeutic agent to prevent hyperglycemia-induced endothelial damage.
649 18423412 Inhibition of NADPH oxidase-related oxidative stress-triggered signaling by honokiol suppresses high glucose-induced human endothelial cell apoptosis.
650 18423412 Here we explored the efficacy of honokiol, a small molecular weight natural product, on NADPH oxidase-related oxidative stress-mediated NF-kappaB-regulated signaling and apoptosis in human umbilical vein endothelial cells (HUVECs) under hyperglycemic conditions.
651 18423412 Submicromolar concentrations of honokiol suppressed the increases of NADPH oxidase activity, Rac-1 phosphorylation, p22(phox) protein expression, and reactive oxygen species production in high glucose (HG)-stimulated HUVECs.
652 18423412 The degradation of IkappaBalpha and increase of NF-kappaB activity were inhibited by honokiol in HG-treated HUVECs.
653 18423412 Moreover, honokiol (0.125-1 microM) also suppressed HG-induced cyclooxygenase (COX)-2 upregulation and prostaglandin E(2) production in HUVECs.
654 18423412 These results imply that inhibition of NADPH oxidase-related oxidative stress by honokiol suppresses the HG-induced NF-kappaB-regulated COX-2 upregulation, apoptosis, and cell death in HUVECs, which has the potential to be developed as a therapeutic agent to prevent hyperglycemia-induced endothelial damage.
655 18423412 Inhibition of NADPH oxidase-related oxidative stress-triggered signaling by honokiol suppresses high glucose-induced human endothelial cell apoptosis.
656 18423412 Here we explored the efficacy of honokiol, a small molecular weight natural product, on NADPH oxidase-related oxidative stress-mediated NF-kappaB-regulated signaling and apoptosis in human umbilical vein endothelial cells (HUVECs) under hyperglycemic conditions.
657 18423412 Submicromolar concentrations of honokiol suppressed the increases of NADPH oxidase activity, Rac-1 phosphorylation, p22(phox) protein expression, and reactive oxygen species production in high glucose (HG)-stimulated HUVECs.
658 18423412 The degradation of IkappaBalpha and increase of NF-kappaB activity were inhibited by honokiol in HG-treated HUVECs.
659 18423412 Moreover, honokiol (0.125-1 microM) also suppressed HG-induced cyclooxygenase (COX)-2 upregulation and prostaglandin E(2) production in HUVECs.
660 18423412 These results imply that inhibition of NADPH oxidase-related oxidative stress by honokiol suppresses the HG-induced NF-kappaB-regulated COX-2 upregulation, apoptosis, and cell death in HUVECs, which has the potential to be developed as a therapeutic agent to prevent hyperglycemia-induced endothelial damage.
661 18423412 Inhibition of NADPH oxidase-related oxidative stress-triggered signaling by honokiol suppresses high glucose-induced human endothelial cell apoptosis.
662 18423412 Here we explored the efficacy of honokiol, a small molecular weight natural product, on NADPH oxidase-related oxidative stress-mediated NF-kappaB-regulated signaling and apoptosis in human umbilical vein endothelial cells (HUVECs) under hyperglycemic conditions.
663 18423412 Submicromolar concentrations of honokiol suppressed the increases of NADPH oxidase activity, Rac-1 phosphorylation, p22(phox) protein expression, and reactive oxygen species production in high glucose (HG)-stimulated HUVECs.
664 18423412 The degradation of IkappaBalpha and increase of NF-kappaB activity were inhibited by honokiol in HG-treated HUVECs.
665 18423412 Moreover, honokiol (0.125-1 microM) also suppressed HG-induced cyclooxygenase (COX)-2 upregulation and prostaglandin E(2) production in HUVECs.
666 18423412 These results imply that inhibition of NADPH oxidase-related oxidative stress by honokiol suppresses the HG-induced NF-kappaB-regulated COX-2 upregulation, apoptosis, and cell death in HUVECs, which has the potential to be developed as a therapeutic agent to prevent hyperglycemia-induced endothelial damage.
667 18431508 In cultured podocytes, adiponectin administration was associated with increased activity of AMPK, and both adiponectin and AMPK activation reduced podocyte permeability to albumin and podocyte dysfunction, as evidenced by zona occludens-1 translocation to the membrane.
668 18431508 These effects seemed to be caused by reduction of oxidative stress, as adiponectin and AMPK activation both reduced protein levels of the NADPH oxidase Nox4 in podocytes.
669 18431508 Ad(-/-) mice treated with adiponectin exhibited normalization of albuminuria, improvement of podocyte foot process effacement, increased glomerular AMPK activation, and reduced urinary and glomerular markers of oxidant stress.
670 18431508 These results suggest that adiponectin is a key regulator of albuminuria, likely acting through the AMPK pathway to modulate oxidant stress in podocytes.
671 18488224 Based on recent experimental data, it is now accepted that increased NADPH oxidase activity in tissues vulnerable to hyperglycemia takes place downstream of the advanced glycation end products and protein kinase C pathways, two of the primary mechanisms involved in the pathogenesis of diabetic complications.
672 18511442 Comment on: Thallas-Bonke et al. (2008) Inhibition of NADPH oxidase prevents advanced glycation end product-mediated damage in diabetic nephropathy through a protein kinase C-alpha-dependent pathway: Diabetes 57:460-469, 2008.
673 18539157 Vascular and cardiac ROS produced by NADPH oxidase, mitochondria, eNOS, and xanthine oxidase were increased in the diabetic group as was the expression of NADPH oxidase subunits at the protein level.
674 18539157 In addition, telmisartan inhibits activation of superoxide sources like NADPH oxidase, mitochondria, and xanthine oxidase.
675 18539157 Vascular and cardiac ROS produced by NADPH oxidase, mitochondria, eNOS, and xanthine oxidase were increased in the diabetic group as was the expression of NADPH oxidase subunits at the protein level.
676 18539157 In addition, telmisartan inhibits activation of superoxide sources like NADPH oxidase, mitochondria, and xanthine oxidase.
677 18592239 The NADPH oxidase NOX2 plays a role in periodontal pathologies.
678 18592239 The phagocyte nicotinamide adenine dinucleotide phosphate oxidase NOX2 is most likely one of the key sources of reactive oxygen species (ROS) in periodontal tissues.
679 18592239 We will first focus on oral pathology in NOX2 deficiency such as chronic granulomatous disease (CGD).
680 18723759 Endothelial dysfunction was reversed by addition of superoxide dismutase or the NADPH oxidase inhibitor apocynin.
681 18723759 An increase in superoxide production and increased expression of the NADPH oxidase regulatory subunit p47(phox) were also found in pulmonary arteries from diabetic rats.
682 18723759 Endothelial dysfunction was reversed by addition of superoxide dismutase or the NADPH oxidase inhibitor apocynin.
683 18723759 An increase in superoxide production and increased expression of the NADPH oxidase regulatory subunit p47(phox) were also found in pulmonary arteries from diabetic rats.
684 18788099 Tempol (a scavenger of superoxide), apocynin (an inhibitor of NADPH oxidase) and allopurinol (an inhibitor of xanthine oxidase) all not only decreased superoxide in carotid arteries, but also suppressed arterial contractions to U46619 in Ins2(Akita) diabetic mice.
685 18806296 Suppression of retinal peroxisome proliferator-activated receptor gamma in experimental diabetes and oxygen-induced retinopathy: role of NADPH oxidase.
686 18841076 In addition, rLE suppressed expression of PKCbeta2 and activation of NADPH oxidase subunit of p22phox promoted by high glucose.
687 18841076 Our results suggest that PKCbeta2 expression and NADPH oxidase-dependent superoxide production and eNOS-mediated peroxynitrite generation may be essential mechanisms responsible for increased oxidative stress and endothelial apoptosis in chronic hyperglycemic conditions.
688 18841076 In addition, rLE suppressed expression of PKCbeta2 and activation of NADPH oxidase subunit of p22phox promoted by high glucose.
689 18841076 Our results suggest that PKCbeta2 expression and NADPH oxidase-dependent superoxide production and eNOS-mediated peroxynitrite generation may be essential mechanisms responsible for increased oxidative stress and endothelial apoptosis in chronic hyperglycemic conditions.
690 18853323 Involvement of angiotensin II-dependent vascular endothelial growth factor gene expression via NADPH oxidase in the retina in a type 2 diabetic rat model.
691 18855718 The crosstalk between insulin and renin-angiotensin-aldosterone signaling systems and its effect on glucose metabolism and diabetes prevention.
692 18855718 Early insulin signaling steps are impaired in essential hypertension and a large body of data suggests that there is a crosstalk at multiple levels between the signal transduction pathways that mediate insulin and angiotensin II actions.
693 18855718 At the extracellular level the angiotensin converting enzyme (ACE) regulates the synthesis of angiotensin II and bradykinin that is a powerful vasodilator.
694 18855718 At early intracellular level angiotensin II acts on JAK-2/IRS1-IRS2/PI3-kinase, JNK and ERK to phosphorylate serine residues of key elements of insulin signaling pathway therefore inhibiting signaling by the insulin receptor.
695 18855718 On another level angiotensin II inhibits the insulin signaling inducing the regulatory protein SOCS 3.
696 18855718 Angiotensin II acting through the AT1 receptor can inhibit insulin-induced nitric oxide (NO) production by activating ERK 1/2 and JNK and enhances the activity of NADPH oxidase that leads to an increased reactive oxygen species generation.
697 18855718 From the clinical standpoint, the inhibition of the renin angiotensin system improves insulin sensitivity and decreases the incidence of Type 2 Diabetes Mellitus (T2DM).
698 18855718 This review will discuss: a) the molecular mechanisms of the crosstalk between the insulin and angiotensin II signaling systems b) the results of clinical studies employing drugs targeting the renin-angiotensin II-aldosterone systems and their role in glucose metabolism and diabetes prevention.
699 18924487 Then, both reactive species are produced by strictly regulated enzymes, such as nitric oxide synthase (NOS), and isoforms of NADPH oxidase, or as by-products from not so well regulated sources, such as the mitochondrial electron-transport chain.
700 19006047 Superoxide producing enzymes involved in the increased production of reactive oxygen species include NADPH oxidase, nitric oxide synthase in the uncoupled state, mitochondrial superoxide sources, cyclooxygenase and xanthine oxidase.
701 19011670 Beneficial effects of an antioxidant (N-acetyl-L-cysteine, NAC) and an angiotensin I-converting enzyme (ACE) inhibitor (ramipril) were assessed in a rat model of insulin resistance induced by 10% glucose feeding for 20 weeks.
702 19011670 This was associated with a higher production of superoxide anion and NADPH oxidase activity in aorta and liver and with a marked reduction in protein expression of skeletal muscle insulin receptor substrate-1 (IRS-1) in the gastrocnemius muscle.
703 19011670 Although ramipril also reversed high blood pressure, it had a lesser effect on insulin resistance (including IRS-1) and blocked superoxide anion production only in aorta.
704 19018797 Furthermore, reactive oxygen species (ROS) in the rat renal cortex were analysed using an H(2)O(2)-based hydroxyl radical-detection assay and the renal content of AGE, RAGE, NADPH oxidase p47phox, nuclear factor (NF)-kappaB p65, phosphorylated (p-) NF-kappaB p65, vascular cell adhesion molecule (VCAM)-1 and transforming growth factor (TGF)-beta1 was determined by immunohistochemistry, quantitative real-time polymerase chain reaction and western blot analysis. 3.
705 19018797 In addition, benazepril treatment reduced the upregulation of NADPH oxidase p47phox, ROS generation and NF-kappaB p65, p-NF-kappaB p65, VCAM-1 and TGF-beta1 expression in the kidney of SHR compared with both untreated SHR and control WKY rats. 4.
706 19018797 Furthermore, reactive oxygen species (ROS) in the rat renal cortex were analysed using an H(2)O(2)-based hydroxyl radical-detection assay and the renal content of AGE, RAGE, NADPH oxidase p47phox, nuclear factor (NF)-kappaB p65, phosphorylated (p-) NF-kappaB p65, vascular cell adhesion molecule (VCAM)-1 and transforming growth factor (TGF)-beta1 was determined by immunohistochemistry, quantitative real-time polymerase chain reaction and western blot analysis. 3.
707 19018797 In addition, benazepril treatment reduced the upregulation of NADPH oxidase p47phox, ROS generation and NF-kappaB p65, p-NF-kappaB p65, VCAM-1 and TGF-beta1 expression in the kidney of SHR compared with both untreated SHR and control WKY rats. 4.
708 19056645 Green tea (Camellia sinensis) attenuates nephropathy by downregulating Nox4 NADPH oxidase in diabetic spontaneously hypertensive rats.
709 19056645 Renal oxidative stress variables such as 8-hydroxy-2'-deoxyguanosine (8-OHdG) and nitrotyrosine expression, NADPH oxidase-dependent superoxide generation, and the expression of renal cortex Nox4 were greater (P < 0.05) in diabetic rats that received water (DW) than in nondiabetic rats that received water (CW).
710 19056645 Likewise, the indices of renal injury, albuminuria, and renal expression of collagen IV were significantly greater in DW than in CW.
711 19056645 Green tea (Camellia sinensis) attenuates nephropathy by downregulating Nox4 NADPH oxidase in diabetic spontaneously hypertensive rats.
712 19056645 Renal oxidative stress variables such as 8-hydroxy-2'-deoxyguanosine (8-OHdG) and nitrotyrosine expression, NADPH oxidase-dependent superoxide generation, and the expression of renal cortex Nox4 were greater (P < 0.05) in diabetic rats that received water (DW) than in nondiabetic rats that received water (CW).
713 19056645 Likewise, the indices of renal injury, albuminuria, and renal expression of collagen IV were significantly greater in DW than in CW.
714 19111363 Oxidative stress via nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and vascular endothelial growth factor (VEGF) pathway play critical roles in the development of diabetic nephropathy.
715 19158351 Once in the cell, fructose is phosphorylated by ketohexokinase (KHK), leading to consumption of ATP, formation of AMP, and generation of uric acid through xanthine oxidoreductase (XOR).
716 19158351 Several antioxidants, including specific inhibitors of NADPH oxidase and XOR, prevented MCP-1 secretion.
717 19230846 Inhibition of PI3 kinase and Src kinases decreased (p < 0.05) G6PD activity in the fa/fa but not in the lean rat liver, suggesting that G6PD activity is regulated by PI3/Src kinase signaling pathways.
718 19230846 G6PD-derived NADPH increased (p < 0.05) superoxide anion levels by 70-90% in fa/fa vs lean rat liver, which was inhibited by the NADPH oxidase inhibitor gp91(ds-tat) (50 microM) and G6PD inhibitors 6-aminonicotinamide (1 mM) and dehydroepiandrosterone (100 microM), therefore indicating that elevated G6PD activity may be responsible for mediating superoxide generation.
719 19230846 Increased G6PD and NADPH oxidase expression and activity, in young hyperglycemic and hyperinsulinemic rats before the development of diabetes, seems to be a contributing factor in the induction of oxidative stress.
720 19230846 Inhibition of PI3 kinase and Src kinases decreased (p < 0.05) G6PD activity in the fa/fa but not in the lean rat liver, suggesting that G6PD activity is regulated by PI3/Src kinase signaling pathways.
721 19230846 G6PD-derived NADPH increased (p < 0.05) superoxide anion levels by 70-90% in fa/fa vs lean rat liver, which was inhibited by the NADPH oxidase inhibitor gp91(ds-tat) (50 microM) and G6PD inhibitors 6-aminonicotinamide (1 mM) and dehydroepiandrosterone (100 microM), therefore indicating that elevated G6PD activity may be responsible for mediating superoxide generation.
722 19230846 Increased G6PD and NADPH oxidase expression and activity, in young hyperglycemic and hyperinsulinemic rats before the development of diabetes, seems to be a contributing factor in the induction of oxidative stress.
723 19427492 The renin angiotensin aldosterone system in hypertension: roles of insulin resistance and oxidative stress.
724 19427492 Indeed, there is a mounting body of evidence that the resultant insulin resistance in cardiovascular tissue and kidneys contributes to the development of endothelial dysfunction, HTN, atherosclerosis, CKD, and CVD.77 RAAS-associated signaling by way of the AT1R and MR, triggers tissue activation of the NADPH oxidase enzymatic activation and increased production of ROS.
725 19427492 Oxidative stress in cardiovascular tissue is derived from both NADPH oxidase and mitochondrial generation of ROS, and is central to the development of insulin resistance, endothelial dysfunction, HTN, and atherosclerosis.
726 19427492 Several strategies are available for RAAS blockade, including ACE inhibitors, ARBs, and MR blockers, which have been proven in the clinical trials to result in improved CVD and CKD outcomes.
727 19427492 The renin angiotensin aldosterone system in hypertension: roles of insulin resistance and oxidative stress.
728 19427492 Indeed, there is a mounting body of evidence that the resultant insulin resistance in cardiovascular tissue and kidneys contributes to the development of endothelial dysfunction, HTN, atherosclerosis, CKD, and CVD.77 RAAS-associated signaling by way of the AT1R and MR, triggers tissue activation of the NADPH oxidase enzymatic activation and increased production of ROS.
729 19427492 Oxidative stress in cardiovascular tissue is derived from both NADPH oxidase and mitochondrial generation of ROS, and is central to the development of insulin resistance, endothelial dysfunction, HTN, and atherosclerosis.
730 19427492 Several strategies are available for RAAS blockade, including ACE inhibitors, ARBs, and MR blockers, which have been proven in the clinical trials to result in improved CVD and CKD outcomes.
731 19429815 Our aim was to determine whether NADPH oxidase (Nox) is a source of O(2)(-) and whether glucose-6-phosphate dehydrogenase (G6PD)-derived NADPH plays a role in augmenting O(2)(-) generation in diabetes.
732 19429815 We found that myocardial G6PD activity was significantly higher in fa/fa than in lean rats, whereas superoxide dismutase and glutathione peroxidase activities were decreased (P < 0.05).
733 19429815 Notably, the activities of Nox and G6PD in the fa/fa rat heart were inhibited by chelerythrine, a protein kinase C inhibitor.
734 19436757 IL-6 mediated degeneration of forebrain GABAergic interneurons and cognitive impairment in aged mice through activation of neuronal NADPH oxidase.
735 19531637 Moreover, expression of p22phox (catalytic subunit of NADPH oxidase) as well as nitrotyrosine and superoxide content were all reduced in the aortas of rosiglitazone-treated SHR.
736 19531637 Acute pretreatment of MVB from vehicle-treated SHR with apocynin (NADPH oxidase inhibitor) enhanced vasodilator actions of insulin (results comparable to those in MVB from rosiglitazone-treated SHR).
737 19531637 We conclude that rosiglitazone therapy in SHR increases SOD activity and decreases p22phox expression in the vasculature to reduce oxidant stress leading to an improved cardiovascular phenotype.
738 19531637 Moreover, expression of p22phox (catalytic subunit of NADPH oxidase) as well as nitrotyrosine and superoxide content were all reduced in the aortas of rosiglitazone-treated SHR.
739 19531637 Acute pretreatment of MVB from vehicle-treated SHR with apocynin (NADPH oxidase inhibitor) enhanced vasodilator actions of insulin (results comparable to those in MVB from rosiglitazone-treated SHR).
740 19531637 We conclude that rosiglitazone therapy in SHR increases SOD activity and decreases p22phox expression in the vasculature to reduce oxidant stress leading to an improved cardiovascular phenotype.
741 19617408 The p38 mitogen-activated protein kinase (MAPK) is activated during heart diseases that might be associated with myocardial damage and cardiac remodeling process.
742 19617408 The purpose of this study was to investigate the role of p38alpha MAPK after experimental diabetes by using transgenic (TG) mice with cardiac-specific expression of a dominant-negative mutant form of p38alpha MAPK.
743 19617408 In addition, diabetic TG mice had reduced cardiac myocyte diameter, content of cardiac fibrosis, LV tissue expressions of atrial natriuretic peptide, transforming growth factor beta1, and collagen III compared with diabetic NTG mice.
744 19617408 Moreover, LV expression of NADPH oxidase subunits, p22(phox), p67(phox), gp91(phox), and Nox4, reactive oxygen species and lipid peroxidation levels were significantly increased in diabetic NTG mice, but not in diabetic TG mice.
745 19617408 Furthermore, myocardial apoptosis, the number of caspase-3-positive cells, and the downregulation of antiapoptotic protein Bcl-X(L) were less in diabetic TG mice compared with diabetic NTG mice.
746 19617408 In conclusion, our data establish that p38alpha MAPK activity is required for cardiac remodeling after diabetes induction and suggest that p38alpha MAPK may promote cardiomyocyte apoptosis by downregulation of Bcl-X(L).
747 19686728 The expression of endothelial nitric oxide synthase (eNOS) mRNA was measured by RT-PCR, and the protein expressions of eNOS and NADPH oxidase (NOX4) were analyzed by western blot.
748 19686728 The expressions of eNOS mRNA and protein were significantly increased, while NOX4 protein expression was decreased in aortas from diabetic rats with berberine treatment.
749 19686728 In conclusion, berberine restores diabetic endothelial dysfunction through enhanced NO bioavailability by up-regulating eNOS expression and down-regulating expression of NADPH oxidase.
750 19686728 The expression of endothelial nitric oxide synthase (eNOS) mRNA was measured by RT-PCR, and the protein expressions of eNOS and NADPH oxidase (NOX4) were analyzed by western blot.
751 19686728 The expressions of eNOS mRNA and protein were significantly increased, while NOX4 protein expression was decreased in aortas from diabetic rats with berberine treatment.
752 19686728 In conclusion, berberine restores diabetic endothelial dysfunction through enhanced NO bioavailability by up-regulating eNOS expression and down-regulating expression of NADPH oxidase.
753 19706525 (i) Immunoblot analysis in cultured mesangial cells and kidney cortex revealed that Nox4 is present in crude mitochondria, in mitochondria-enriched heavy fractions, and in purified mitochondria; (ii) immunofluorescence confocal microscopy also revealed that Nox4 localizes with the mitochondrial marker Mitotracker; and (iii) the mitochondrial localization prediction program MitoProt indicated that the probability score for Nox4 is identical to mitochondrial protein cytochrome c oxidase subunit IV.
754 19706525 We also show that in purified mitochondria, siRNA-mediated knockdown of Nox4 significantly reduces NADPH oxidase activity in pure mitochondria and blocks glucose-induced mitochondrial superoxide generation.
755 19727064 Increasing the amount of AOPPs in the media of conditionally immortalized podocytes rapidly triggered the production of intracellular superoxide by activation of NADPH oxidase and this, in turn, led to an upregulation of p53, Bax, caspase 3 activity, and apoptosis.
756 19733855 Cellular factors involved in CXCL8 expression induced by glycated serum albumin in vascular smooth muscle cells.
757 19733855 GSA increased IL-8 transcription via promoter activation and enhanced CXCL8 release from VSMCs.
758 19733855 GSA-induced promoter activation of the IL-8 gene was suppressed by dominant-negative mutants of TLR-4, MyD88, and TRIF, but not by a dominant-negative form of TLR-2.
759 19733855 Mutation at the NF-kappaB- or C/EBP-binding site, but not at the AP-1-binding site, in the IL-8 promoter region suppressed GSA-induced promoter activation.
760 19733855 This study suggests that GSA induces expression of IL-8 in VSMCs and that TLR-4, mitogen-activated protein kinases, NF-kappaB, and NADPH oxidase are involved in that process.
761 19748094 Paraoxonase 2 (PON2) decreases high glucose-induced macrophage triglycerides (TG) accumulation, via inhibition of NADPH-oxidase and DGAT1 activity: studies in PON2-deficient mice.
762 19809798 The various beta cell isoforms of NADPH oxidase (described in this review) may, via differences in the kinetics and species of ROS generated, positively and negatively regulate insulin secretion and cell survival.
763 19854265 Further studies revealed that HG treatment resulted in phosphorylation and membrane translocation of PKCbeta2 as well as Rac1, p47phox, and p67phox subunits, leading to NADPH oxidase activation.
764 19854265 Puerarin treatment remarkably disrupted the phosphorylation and membrane translocation of PKCbeta2 as well as Rac1, p47phox, and p67phox subunits.
765 19854265 Blocking PKCbeta2 by infection with AdDNPKCbeta2 also abolished HG-induced phosphorylation and membrane translocation of Rac1, p47phox, and p67phox subunits as well as ROS production and NADPH oxidase activation in VSMCs.
766 19854265 Further studies revealed that HG treatment resulted in phosphorylation and membrane translocation of PKCbeta2 as well as Rac1, p47phox, and p67phox subunits, leading to NADPH oxidase activation.
767 19854265 Puerarin treatment remarkably disrupted the phosphorylation and membrane translocation of PKCbeta2 as well as Rac1, p47phox, and p67phox subunits.
768 19854265 Blocking PKCbeta2 by infection with AdDNPKCbeta2 also abolished HG-induced phosphorylation and membrane translocation of Rac1, p47phox, and p67phox subunits as well as ROS production and NADPH oxidase activation in VSMCs.
769 19881255 Diabetes reduced the amount of sEH protein in the liver and insulin restored the level of protein.
770 19881255 The NADPH oxidase inhibitor, diphenyleneiodonium chloride (DPIC), inhibited decrease in sEH expression at high glucose and hydrogen peroxide suppressed sEH expression.
771 19910640 Four members of the NADPH oxidase (Nox) enzyme family are important sources of reactive oxygen species in the vasculature: Nox1, Nox2, Nox4, and Nox5.
772 19910640 Signaling cascades triggered by stresses, hormones, vasoactive agents, and cytokines control the expression and activity of these enzymes and of their regulatory subunits, among which p22phox, p47phox, Noxa1, and p67phox are present in blood vessels.
773 19910640 Vascular Nox enzymes are also regulated by Rac, ClC-3, Poldip2, and protein disulfide isomerase.
774 19950211 All the changes induced by the high glucose culture media could be reversed by either the cyclooxygenase II inhibitor CAY10404, the non-selective cyclooxygenase inhibitor indomethacin or the protein kinase C inhibitor chelerythrine, but not solely by preincubation with the antioxidant and putative NADPH oxidase inhibitor, apocynin.
775 19955485 The mechanism of cellular NADPH oxidase (NOX)-dependent ROS generation by defined AGEs, N(epsilon)-carboxymethyl-lysine- and methylglyoxal (MG)-modified BSA, was assessed in AGER1 overexpressing (AGER1(+) EC) or knockdown (sh-mRNA-AGER1(+) EC) human aortic endothelial (EC) and ECV304 cells, and aortic segments from old (18 mo) C57BL6-F(2) mice, propagated on low-AGE diet (LAGE), or LAGE supplemented with MG (LAGE+MG).
776 19955485 Wild-type EC and sh-mRNA-AGER1(+) EC, but not AGER1(+) EC, had high NOX p47(phox) and gp91(phox) activity, superoxide anions, and NF-kappaB p65 nuclear translocation in response to MG and N(epsilon)-carboxymethyl-lysine.
777 19957251 In addition, we aimed to study whether PYC affects cardiac oxidative stress and the protein expression of reactive oxygen species (ROS)-producing molecules (gp91(phox)-containing NADPH oxidase and NO-signalling proteins).
778 19957251 Excessive oxidative stress in streptozotocin (STZ) hearts, evidenced by 40% increase (P < 0.05) of thiobarbituric acid reactive substances (TBARS) concentration, was associated with increased expression of gp91(phox) (by 75%, P < 0.05), iNOS (by 40%, P < 0.05) and alpha-tubulin (by 49%, P < 0.05), but unchanged expression of eNOS and its alosteric regulators, as compared to CON.
779 20034466 Similar effects of resistin and high glucose on P-selectin and fractalkine expression and monocyte adhesion in human endothelial cells.
780 20034466 We questioned whether resistin and HG affect the expression of major adhesion molecules, P-selectin and fractalkine in human endothelial cells (HEC).
781 20034466 The results showed that in HEC (i) resistin increased P-selectin expression; (ii) HG up-regulated Fk expression; (iii) P-selectin and fractalkine were functional increasing monocyte adhesion to activated cells.
782 20034466 Co-stimulation with resistin and HG increased P-selectin and fractalkine mRNA and protein and induced monocyte adhesion, generated an increase in NADPH oxidase activity and of the intracellular reactive oxygen species and activated the NF-kB and AP-1 transcription factors at similar values as those of each activator.
783 20034466 In conclusion in HEC, resistin and HG induce the up-regulation of P-selectin and fractalkine and the ensuing increased monocyte adhesion by a mechanism involving oxidative stress and NF-kB and AP-1 activation.
784 20053941 There is a gap in the current literature regarding which PLA(2) isoform regulates NADPH oxidase activation.
785 20053941 The nonspecific actions of BEL on phosphatidic acid phosphohydrolase-1, p47(phox) phosphorylation, and apoptosis were ruled out by specific assays.
786 20053941 This study provides evidence for the role of iPLA(2) in enhanced superoxide generation in neutrophils from people with diabetes mellitus and presents an alternate pathway independent of protein kinase C and phosphatidic acid phosphohydrolase-1 hydrolase signaling.
787 20110125 We have demonstrated nitrative stress by localizing nitrotyrosine residues in these placentas and found increased expression of NADPH oxidase (NOX) enzyme isoforms 1 and 5 as a potential source of superoxide generation.
788 20110125 We find many nitrated proteins in the placenta, including p38 MAP kinase which has a role in development of the villous vasculature.
789 20110125 Nitration of p38 MAPK was increased in the preeclamptic placenta and associated with loss of catalytic activity.
790 20154258 Prostacyclin was the predominant prostaglandin produced by ACh-stimulated CCAs, with greater than twofold more prostacyclin released from SHR versus WKY rats, and its production was unaffected by ROCK inhibition.
791 20154258 Augmentation of chemical superoxide quenching with tiron or inhibition of the NADPH oxidase-derived superoxide-producing pathway with apocynin reduced ACh-stimulated contractile activity in SHR more than in WKY rats, whereas the SOD mimetic tempol amplified the response.
792 20175116 Further studies revealed that HG treatment resulted in phosphorylation and membrane translocation of Rac1, p47phox, and p67phox subunits leading to NADPH oxidase activation.
793 20175116 GSPs treatment remarkably disrupted the phosphorylation and membrane translocation of Rac1, p47phox, and p67phox subunits.
794 20175116 More importantly, our data further revealed that GSPs significantly disrupted HG-induced activation of ERK1/2, JNK1/2, and PI3K/AKT/GSK3beta as well as NF-kappaB signalings, which were dependent on reactive oxygen species (ROS) generation and Rac1 activation.
795 20175116 In addition, our results also demonstrated that HG-induced cell proliferation and excess ROS production was dependent on the activation of PI3 kinase subunit p110alpha.
796 20200810 NADPH oxidase is a major resource of reactive oxygen species (ROS) in the testes and is likely related to an activated endothelin-1 (ET-1) system.
797 20200810 Blood glucose, testosterone, follicle stimulating hormone (FSH) , luteinizing hormone (LH) and expressions of NADPH oxidase subunits and the ET system were measured.
798 20200810 Additionally, over-expressions of NADPH oxidase p22, p47, p67 subunits and the ET pathway were significant in the diabetic testis relative to normal and were completely abolished by FDP-Sr.
799 20200810 NADPH oxidase is a major resource of reactive oxygen species (ROS) in the testes and is likely related to an activated endothelin-1 (ET-1) system.
800 20200810 Blood glucose, testosterone, follicle stimulating hormone (FSH) , luteinizing hormone (LH) and expressions of NADPH oxidase subunits and the ET system were measured.
801 20200810 Additionally, over-expressions of NADPH oxidase p22, p47, p67 subunits and the ET pathway were significant in the diabetic testis relative to normal and were completely abolished by FDP-Sr.
802 20200810 NADPH oxidase is a major resource of reactive oxygen species (ROS) in the testes and is likely related to an activated endothelin-1 (ET-1) system.
803 20200810 Blood glucose, testosterone, follicle stimulating hormone (FSH) , luteinizing hormone (LH) and expressions of NADPH oxidase subunits and the ET system were measured.
804 20200810 Additionally, over-expressions of NADPH oxidase p22, p47, p67 subunits and the ET pathway were significant in the diabetic testis relative to normal and were completely abolished by FDP-Sr.
805 20371238 These include NADPH oxidase, mitochondrial electron transport chain, xanthine oxidase and nitric oxide synthase.
806 20393589 NADPH oxidase (NOX) generates superoxide from NADPH in cells.
807 20393589 Overproduction of ROS resulting from mitochondrial dysfunction or NOX activation is associated with uncoupling of endothelial nitric oxide synthase, which leads to reduced production of nitric oxide and endothelial-dependent vasodilation.
808 20393589 Gene silence or inhibitor of NOX reduced oxidized or glycated LDL-induced expression of plasminogen activator inhibitor-1 in endothelial cells.
809 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
810 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
811 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
812 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
813 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
814 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
815 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
816 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
817 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
818 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
819 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
820 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
821 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
822 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
823 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
824 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
825 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
826 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
827 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
828 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
829 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
830 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
831 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
832 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
833 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
834 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
835 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
836 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
837 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
838 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
839 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
840 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
841 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
842 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
843 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
844 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
845 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
846 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
847 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
848 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
849 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
850 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
851 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
852 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
853 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
854 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
855 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
856 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
857 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
858 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
859 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
860 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
861 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
862 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
863 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
864 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
865 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
866 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
867 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
868 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
869 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
870 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
871 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
872 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
873 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
874 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
875 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
876 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
877 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
878 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
879 20399741 Glycated albumin activates NADPH oxidase in rat mesangial cells through up-regulation of p47phox.
880 20399741 Glycated albumin, an early-glycation Amadori-modified protein, stimulates transforming growth factor-beta (TGF-beta) expression and increases the production of the extracellular matrix proteins in mesangial cells, contributing to the pathogenesis of diabetic nephropathy.
881 20399741 Glycated albumin has been shown to increase NADPH oxidase-dependent superoxide formation in mesangial cells.
882 20399741 Therefore, in the present studies, we determined the mechanisms by which glycated albumin activates NADPH oxidase in primary rat mesangial cells and its contribution to glycated albumin-induced TGF-beta expression and extracellular matrix protein production.
883 20399741 Our data showed that glycated albumin treatment stimulated NADPH oxidase activity and increased the formation of superoxide formation in rat mesangial cells.
884 20399741 Moreover, glycated albumin treatment stimulated the expression and phosphorylation of p47phox, one of the cytosolic regulatory subunits of the NADPH oxidase.
885 20399741 However, the levels of other NADPH oxidase subunits including Nox1, Nox2, Nox4, p22phox, and p67phox were not altered by glycated albumin.
886 20399741 Moreover, siRNA-mediated knockdown of p47phox inhibited glycated albumin-induced NADPH oxidase activity and superoxide formation.
887 20399741 Glycated albumin-induced TGF-beta expression and extracellular matrix production (fibronectin) was also inhibited by p47phox knock down.
888 20399741 Taken together, these data suggest that up-regulation of p47phox is involved in glycated albumin-mediated activation of NADPH oxidase, leading to glycated albumin-induced expression of TGF-beta and extracellular matrix proteins in mesangial cells and contributing to the development of diabetic nephropathy.
889 20399799 At the end of 4, 8, and 12 weeks, hydroxyproline content, NADPH oxidase activity and the expression of phosphorylation of inositol-requiring enzyme-1alpha (p-IRE1alpha), p47phox, nitrotyrosine (NT) and NF-E2-related factor 2 (Nrf2) in the kidneys of all rats were determined; malondialdehyde (MDA) levels and superoxide dismutase (SOD) activity in serum and urine were also detected; renal nuclear factor kappaB (NF-kappaB) activity in all of the rats was examined at the end of 12 weeks.
890 20399799 Compared with the NC group, the DN rats showed a significant increase in hydroxyproline content, NADPH oxidase activity, NF-kappaB activity, the expression of p-IRE1alpha, p47phox, NT and Nrf2 in renal tissue; markedly, MDA levels were higher and SOD activity was lower in serum and urine of DN rats than in NC rats for the indicated time.
891 20399799 At the end of 4, 8, and 12 weeks, hydroxyproline content, NADPH oxidase activity and the expression of phosphorylation of inositol-requiring enzyme-1alpha (p-IRE1alpha), p47phox, nitrotyrosine (NT) and NF-E2-related factor 2 (Nrf2) in the kidneys of all rats were determined; malondialdehyde (MDA) levels and superoxide dismutase (SOD) activity in serum and urine were also detected; renal nuclear factor kappaB (NF-kappaB) activity in all of the rats was examined at the end of 12 weeks.
892 20399799 Compared with the NC group, the DN rats showed a significant increase in hydroxyproline content, NADPH oxidase activity, NF-kappaB activity, the expression of p-IRE1alpha, p47phox, NT and Nrf2 in renal tissue; markedly, MDA levels were higher and SOD activity was lower in serum and urine of DN rats than in NC rats for the indicated time.
893 20422735 The oxidants arise from NADPH oxidase, xanthine oxidase, and mitochondria.
894 20422735 With some important vascular proteins, for example, endothelial nitric oxide synthase, prostacycline synthase, and superoxide dismutase, oxidation of a single susceptible amino acid inactivates the enzyme.
895 20447391 Angiotensin-(1-7) prevents diabetes-induced attenuation in PPAR-gamma and catalase activities.
896 20447391 The purpose of this study was A) to compare the effects of apocynin with Ang-(1-7) on renal vascular dysfunction and NADPH oxidase activity in a combined model of diabetes and hypertension and B) to further determine whether chronic treatment with Ang-(1-7) can modulate renal catalase, and peroxisome proliferator activated receptor- gamma (PPAR-gamma) levels in streptozotocin-induced diabetes in both normotensive Wistar Kyoto rats (WKY) and in spontaneously hypertensive rats (SHR).
897 20447391 Induction of diabetes in WKY and SHR animals resulted in significantly reduced renal catalase activity and in PPAR-gamma mRNA and protein levels.
898 20447391 Treatment with Ang-(1-7) significantly prevented diabetes-induced reduction in catalase activity and the reduction in PPAR-gamma mRNA and protein levels in both animal models.
899 20447391 Taken together, these data suggest that activation of Ang-(1-7)-mediated signaling could be an effective way to prevent the elevation of NADPH oxidase activity and inhibition of PPAR-gamma and catalase activities in diabetes and/or hypertension.
900 20447391 Angiotensin-(1-7) prevents diabetes-induced attenuation in PPAR-gamma and catalase activities.
901 20447391 The purpose of this study was A) to compare the effects of apocynin with Ang-(1-7) on renal vascular dysfunction and NADPH oxidase activity in a combined model of diabetes and hypertension and B) to further determine whether chronic treatment with Ang-(1-7) can modulate renal catalase, and peroxisome proliferator activated receptor- gamma (PPAR-gamma) levels in streptozotocin-induced diabetes in both normotensive Wistar Kyoto rats (WKY) and in spontaneously hypertensive rats (SHR).
902 20447391 Induction of diabetes in WKY and SHR animals resulted in significantly reduced renal catalase activity and in PPAR-gamma mRNA and protein levels.
903 20447391 Treatment with Ang-(1-7) significantly prevented diabetes-induced reduction in catalase activity and the reduction in PPAR-gamma mRNA and protein levels in both animal models.
904 20447391 Taken together, these data suggest that activation of Ang-(1-7)-mediated signaling could be an effective way to prevent the elevation of NADPH oxidase activity and inhibition of PPAR-gamma and catalase activities in diabetes and/or hypertension.
905 20543087 A diabetes-induced increase in superoxide levels, determined by L-012-induced chemiluminescence, from carotid arteries was associated with endothelial nitric oxide (NO) synthase (eNOS) uncoupling and increased catalytic subunit of NADPH oxidase expression.
906 20551625 Preservation of kidney function with combined inhibition of NADPH oxidase and angiotensin-converting enzyme in diabetic nephropathy.
907 20603655 Common genetic polymorphisms within the promoter and exonic sequences of CYBA, the gene that encodes the p22phox subunit of the NADPH oxidase, have been characterized in the context of cardiovascular diseases.
908 20630933 Expression (gene and protein) of Nox4, p22(phox), and p47(phox), but not Nox1 or Nox2, was increased in kidney cortex, but not medulla, from db/db vs. control mice (db/m) (P < 0.05).
909 20630933 ROS generation, p38 mitogen-activated protein (MAP) kinase phosphorylation, and content of fibronectin and transforming growth factor (TGF)-β1/2 were increased in db/db vs. db/m (P < 0.01).
910 20630933 Nox4 downregulation by small-interfering RNA and inhibition of Nox4 activity by GK-136901 (Nox1/4 inhibitor) attenuated d-glucose-induced NADPH oxidase-derived ROS generation.
911 20630999 Involvement of RAGE, NADPH oxidase, and Ras/Raf-1 pathway in glycated LDL-induced expression of heat shock factor-1 and plasminogen activator inhibitor-1 in vascular endothelial cells.
912 20630999 Previous studies in our laboratory demonstrated that heat shock factor-1 (HSF1) is involved in glyLDL-induced PAI-1 overproduction in vascular endothelial cells (EC).
913 20630999 The present study investigated transmembrane signaling mechanisms involved in glyLDL-induced HSF1 and PAI-1 up-regulation in cultured human vascular EC and streptozotocin-induced diabetic mice.
914 20630999 Farnesyltransferase inhibitor-277 or small interference RNA against H-Ras inhibited glyLDL-induced increases in HSF1 and PAI-1 in EC.
915 20630999 Treatment with diphenyleneiodonium, a nicotinamide adenine dinucleotide phosphate oxidase (NOX) inhibitor, blocked glyLDL-induced translocation of H-Ras, elevated abundances of HSF1 and PAI-1 in EC, and increased release of hydrogen peroxide from EC.
916 20630999 Small interference RNA for p22(phox) prevented glyLDL-induced expression of NOX2, HSF1, and PAI-1 in EC.
917 20630999 GlyLDL significantly increased V-raf-1 murine leukemia viral oncogene homolog 1 (Raf-1) phosphorylation.
918 20630999 Treatment with Raf-1 inhibitor blocked glyLDL-induced increase of PAI-1 mRNA in EC.
919 20630999 The levels of RAGE, H-Ras, NOX4, HSF1, and PAI-1 were increased in hearts of streptozotocin-diabetic mice and positively correlated with plasma glucose.
920 20630999 The results suggest that RAGE, NOX, and H-Ras/Raf-1 are implicated in the up-regulation of HSF1 or PAI-1 in vascular EC under diabetes-associated metabolic stress.
921 20818804 Glycated albumin, a precursor of advanced glycation end-products, up-regulates NADPH oxidase and enhances oxidative stress in human endothelial cells: molecular correlate of diabetic vasculopathy.
922 20881184 In this study, we show that by eliminating macrophage and T cell superoxide production through the NADPH oxidase (NOX), T cell polarization was altered.
923 20883775 Mice with cardiac-specific deletion of Rac1 (Rac1-ko) and transgenic mice with cardiac-specific superoxide dismutase-2 (SOD2) or calpastatin overexpression were rendered diabetic with streptozotocin.
924 20883775 Inhibition of Rac1 signaling prevented NADPH oxidase activation, reactive oxygen species production, and protein carbonyl accumulation, leading to inhibition of calpain activation.
925 20883775 Furthermore, SOD2 or calpastatin overexpression significantly reduced I/R injury in diabetic hearts and improved cardiac function after I/R.
926 20934416 Thus, it is concluded that: (1) the inhibition of NADPH oxidase might contribute to lowered rate of renal gluconeogenesis, probably due to decreasing PEPCK activity; (2) inhibition of renal gluconeogenesis is involved in apocynin hypoglycaemic action in vivo; (3) apocynin might be beneficial for diabetes treatment.
927 20943855 Phagocyte-like NADPH oxidase promotes cytokine-induced mitochondrial dysfunction in pancreatic β-cells: evidence for regulation by Rac1.
928 20943855 To address this, insulin-secreting INS 832/13 cells were treated with cytomix (IL-1β, IFN-γ, and TNF-α; 10 ng/ml each) for different time intervals (0-24 h).
929 20943855 A significant, time-dependent increase in NADPH oxidase activation/intracellular ROS production, p47(phox) subunit, but not p67(phox) subunit, expression of the phagocyte-like NADPH oxidase were demonstrable under these conditions.
930 20943855 Furthermore, siRNA-p47(phox) transfection or exposure of INS 832/13 cells to apocynin, a selective inhibitor of NADPH oxidase, markedly attenuated cytomix-induced ROS generation in these cells.
931 20943855 Cytomix-mediated mitochondrial dysfunction in INS 832/13 cells was evident by a significant loss of mitochondrial membrane potential (MMP) and upregulated caspase 3 activity.
932 20943855 Cytomix treatment also caused a transient (within 15 min) activation of Rac1, a component of the NADPH oxidase holoenzyme.
933 20943855 Phagocyte-like NADPH oxidase promotes cytokine-induced mitochondrial dysfunction in pancreatic β-cells: evidence for regulation by Rac1.
934 20943855 To address this, insulin-secreting INS 832/13 cells were treated with cytomix (IL-1β, IFN-γ, and TNF-α; 10 ng/ml each) for different time intervals (0-24 h).
935 20943855 A significant, time-dependent increase in NADPH oxidase activation/intracellular ROS production, p47(phox) subunit, but not p67(phox) subunit, expression of the phagocyte-like NADPH oxidase were demonstrable under these conditions.
936 20943855 Furthermore, siRNA-p47(phox) transfection or exposure of INS 832/13 cells to apocynin, a selective inhibitor of NADPH oxidase, markedly attenuated cytomix-induced ROS generation in these cells.
937 20943855 Cytomix-mediated mitochondrial dysfunction in INS 832/13 cells was evident by a significant loss of mitochondrial membrane potential (MMP) and upregulated caspase 3 activity.
938 20943855 Cytomix treatment also caused a transient (within 15 min) activation of Rac1, a component of the NADPH oxidase holoenzyme.
939 20943855 Phagocyte-like NADPH oxidase promotes cytokine-induced mitochondrial dysfunction in pancreatic β-cells: evidence for regulation by Rac1.
940 20943855 To address this, insulin-secreting INS 832/13 cells were treated with cytomix (IL-1β, IFN-γ, and TNF-α; 10 ng/ml each) for different time intervals (0-24 h).
941 20943855 A significant, time-dependent increase in NADPH oxidase activation/intracellular ROS production, p47(phox) subunit, but not p67(phox) subunit, expression of the phagocyte-like NADPH oxidase were demonstrable under these conditions.
942 20943855 Furthermore, siRNA-p47(phox) transfection or exposure of INS 832/13 cells to apocynin, a selective inhibitor of NADPH oxidase, markedly attenuated cytomix-induced ROS generation in these cells.
943 20943855 Cytomix-mediated mitochondrial dysfunction in INS 832/13 cells was evident by a significant loss of mitochondrial membrane potential (MMP) and upregulated caspase 3 activity.
944 20943855 Cytomix treatment also caused a transient (within 15 min) activation of Rac1, a component of the NADPH oxidase holoenzyme.
945 20943855 Phagocyte-like NADPH oxidase promotes cytokine-induced mitochondrial dysfunction in pancreatic β-cells: evidence for regulation by Rac1.
946 20943855 To address this, insulin-secreting INS 832/13 cells were treated with cytomix (IL-1β, IFN-γ, and TNF-α; 10 ng/ml each) for different time intervals (0-24 h).
947 20943855 A significant, time-dependent increase in NADPH oxidase activation/intracellular ROS production, p47(phox) subunit, but not p67(phox) subunit, expression of the phagocyte-like NADPH oxidase were demonstrable under these conditions.
948 20943855 Furthermore, siRNA-p47(phox) transfection or exposure of INS 832/13 cells to apocynin, a selective inhibitor of NADPH oxidase, markedly attenuated cytomix-induced ROS generation in these cells.
949 20943855 Cytomix-mediated mitochondrial dysfunction in INS 832/13 cells was evident by a significant loss of mitochondrial membrane potential (MMP) and upregulated caspase 3 activity.
950 20943855 Cytomix treatment also caused a transient (within 15 min) activation of Rac1, a component of the NADPH oxidase holoenzyme.
951 21071935 Regulation of NADPH oxidase activity is associated with miRNA-25-mediated NOX4 expression in experimental diabetic nephropathy.
952 21091073 Although adiponectin (APN) reduces myocardial ischemia/reperfusion (MI/R) injury in nondiabetic animals, whether APN's cardioprotective actions are altered in diabetes, a pathologic condition with endogenously reduced APN, has never been investigated.
953 21091073 Although both low- and high-dose gAPN equally attenuated MI/R-induced oxidative stress (i.e., NADPH oxidase expression and superoxide production) and nitrative stress (i.e., inducible nitric oxide synthase expression, nitric oxide production, and peroxynitrite formation) in ND mice, only high-dose gAPN efficaciously did so in HD mice.
954 21091073 We demonstrate for the first time that HD-induced diabetes diminished both AMPK-dependent and AMPK-independent APN cardioprotection, suggesting an unreported diabetic heart APN resistance.
955 21112335 Inhibitors of NADPH oxidase, xanthine oxidase, and NO synthase inhibited the seasonal O(2)(-)-overproduction.
956 21112335 In the summer vs. other seasons, cardiac NADPH oxidase and xanthine oxidase activity, and protein expression were increased, the endothelial NO synthase and superoxide dismutases were downregulated, and, in guinea-pig hearts, adhesion molecules upregulation and the endothelial glycocalyx destruction associated these changes.
957 21112335 Upregulated NADPH oxidase and xanthine oxidase and uncoupled NO synthase are the sources of the seasonal O(2)(-)-overproduction.
958 21112335 Inhibitors of NADPH oxidase, xanthine oxidase, and NO synthase inhibited the seasonal O(2)(-)-overproduction.
959 21112335 In the summer vs. other seasons, cardiac NADPH oxidase and xanthine oxidase activity, and protein expression were increased, the endothelial NO synthase and superoxide dismutases were downregulated, and, in guinea-pig hearts, adhesion molecules upregulation and the endothelial glycocalyx destruction associated these changes.
960 21112335 Upregulated NADPH oxidase and xanthine oxidase and uncoupled NO synthase are the sources of the seasonal O(2)(-)-overproduction.
961 21112335 Inhibitors of NADPH oxidase, xanthine oxidase, and NO synthase inhibited the seasonal O(2)(-)-overproduction.
962 21112335 In the summer vs. other seasons, cardiac NADPH oxidase and xanthine oxidase activity, and protein expression were increased, the endothelial NO synthase and superoxide dismutases were downregulated, and, in guinea-pig hearts, adhesion molecules upregulation and the endothelial glycocalyx destruction associated these changes.
963 21112335 Upregulated NADPH oxidase and xanthine oxidase and uncoupled NO synthase are the sources of the seasonal O(2)(-)-overproduction.
964 21163347 Two important mechanisms for this oxidant excess are (1) the mitochondrial overproduction of hydrogen peroxide and superoxide ion under conditions of energy surplus and (2) the enhanced activation of cellular NADPH oxidase via angiotensin II receptors.
965 21163347 Several recent studies are reviewed that support the concept that direct exposure of mammalian skeletal muscle to an oxidant stress (including hydrogen peroxide) results in stimulation of the serine kinase p38 mitogen-activated protein kinase (p38 MAPK), and that the engagement of this stress-activated p38 MAPK signaling is mechanistically associated with diminished insulin-dependent stimulation of insulin signaling elements and glucose transport activity.
966 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.
967 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%.
968 21187123 Analysis of oxidative stress genes in IP-INGAP mice revealed a decrease in islet expression of the NADPH oxidase, NOX1, in both basal state and in response to pro-inflammatory cytokine stimulation.
969 21198553 Similar to all NOS isoforms, functional eNOS transfers electrons from nicotinamide adenine dinucleotide phosphate (NADPH), via the flavins flavin adenine dinucleotide and flavin mononucleotide in the carboxy-terminal reductase domain, to the heme in the amino-terminal oxygenase domain.
970 21198553 NADPH-oxidase-derived superoxide avidly reacts with eNOS-derived NO to form peroxynitrite (ONOO(-)).
971 21198553 These include the protein kinase C inhibitor midostaurin, the pentacyclic triterpenoids ursolic acid and betulinic acid, the eNOS enhancing compounds AVE9488 and AVE3085, and the polyphenolic phytoalexin trans-resveratrol.
972 21209957 NADPH oxidase 2-derived reactive oxygen species mediate FFAs-induced dysfunction and apoptosis of β-cells via JNK, p38 MAPK and p53 pathways.
973 21209957 Our results show that palmitate and oleate (0.5 mmol/L, 48 h) induced JNK activation and AKT inhibition which resulted in decreased phosphorylation of FOXO1 following nuclear localization and the nucleocytoplasmic translocation of PDX-1, leading to the reducing of insulin and ultimately dysfunction of pancreatic NIT-1 cells.
974 21237524 Augmented NADPH oxidase activity and p22phox expression in monocytes underlie oxidative stress of patients with type 2 diabetes mellitus.
975 21267711 Argirein alleviates diabetic nephropathy through attenuating NADPH oxidase, Cx43, and PERK in renal tissue.
976 21267711 We hypothesized that the entity of DN is inflammatory and is characterized by upregulated inflammatory/pro-inflammatory factors such as peroxisome proliferator-activated receptor alpha, NADPH oxidase, endoplasmic reticulum stress (ER stress), and endothelin receptor A (ET(A)) and downregulated connexin 43 (Cx43) in the kidney.
977 21267711 With a single injection of streptozotocin 65 mg/kg, ip in rats, early diabetic nephropathy was produced and revealed as an increased microalbuminuria, elevated creatinine and urea in serum, associated with upregulation of mRNA and protein of NADPH oxidase p22phox, p47phox, and p67phox and ET(A), upregulated PKR-like eukaryotic initiation factor 2α kinase (PERK), and downregulated Cx43 in the renal tissue.
978 21267711 Argirein alleviates diabetic nephropathy through attenuating NADPH oxidase, Cx43, and PERK in renal tissue.
979 21267711 We hypothesized that the entity of DN is inflammatory and is characterized by upregulated inflammatory/pro-inflammatory factors such as peroxisome proliferator-activated receptor alpha, NADPH oxidase, endoplasmic reticulum stress (ER stress), and endothelin receptor A (ET(A)) and downregulated connexin 43 (Cx43) in the kidney.
980 21267711 With a single injection of streptozotocin 65 mg/kg, ip in rats, early diabetic nephropathy was produced and revealed as an increased microalbuminuria, elevated creatinine and urea in serum, associated with upregulation of mRNA and protein of NADPH oxidase p22phox, p47phox, and p67phox and ET(A), upregulated PKR-like eukaryotic initiation factor 2α kinase (PERK), and downregulated Cx43 in the renal tissue.
981 21267711 Argirein alleviates diabetic nephropathy through attenuating NADPH oxidase, Cx43, and PERK in renal tissue.
982 21267711 We hypothesized that the entity of DN is inflammatory and is characterized by upregulated inflammatory/pro-inflammatory factors such as peroxisome proliferator-activated receptor alpha, NADPH oxidase, endoplasmic reticulum stress (ER stress), and endothelin receptor A (ET(A)) and downregulated connexin 43 (Cx43) in the kidney.
983 21267711 With a single injection of streptozotocin 65 mg/kg, ip in rats, early diabetic nephropathy was produced and revealed as an increased microalbuminuria, elevated creatinine and urea in serum, associated with upregulation of mRNA and protein of NADPH oxidase p22phox, p47phox, and p67phox and ET(A), upregulated PKR-like eukaryotic initiation factor 2α kinase (PERK), and downregulated Cx43 in the renal tissue.
984 21270942 In addition to increased AGE production, there is also evidence of multiple pathways elevating ROS generation in DM, including; enhanced glucose auto-oxidation, increased mitochondrial superoxide production, protein kinase C-dependent activation of NADPH oxidase, uncoupled endothelial nitric oxide synthase (eNOS) activity, increased substrate flux through the polyol pathway and stimulation of eicosanoid metabolism.
985 21317849 Reactive oxygen species (ROS) can modulate cellular function, receptor signals and immune responses in physiological conditions, but when present in excess, they mediate progressive endothelial damage through growth and migration of vascular smooth muscle and inflammatory cells, alteration of extracellular matrix, apoptosis of endothelial cells, activation of transcription factors (NFkB, AP-1), over-expression of inflammatory cytokines and adhesion molecules (ICAM-1, VCAM-1 , E-selectin).
986 21317849 Recent evidences suggest that the major source of ROS is the NADPH-oxidase, especially activated by angiotensin II, shear stress and hyperglycemia.
987 21372389 The elevated expressions of p22(phox) and Nox-4 proteins (reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunits) were significantly decreased after kangen-karyu treatments.
988 21487074 Angiotensin II plays a critical role in diabetic pulmonary fibrosis most likely via activation of NADPH oxidase-mediated nitrosative damage.
989 21487074 The fibrotic and inflammatory processes were confirmed by real-time PCR and Western blotting assays for the increased fibronectin, CTGF, PAI-1, and TNFα mRNA and protein expressions.
990 21487074 Diabetes also significantly increased NADPH oxidase (NOX) expression and protein nitration along with upregulation of angiotensin II (Ang II) and its receptor expression.
991 21487074 Furthermore, chronic infusion of Ang II to normal mice at a subpressor dose induced diabetes-like lung fibrosis, and Ang II receptor AT1 blocker (losartan) abolished the lung fibrotic and inflammatory responses in diabetic mice.
992 21487074 These results suggest that Ang II plays a critical role in diabetic lung fibrosis, which is most likely caused by NOX activation-mediated nitrosative damage.
993 21487074 Angiotensin II plays a critical role in diabetic pulmonary fibrosis most likely via activation of NADPH oxidase-mediated nitrosative damage.
994 21487074 The fibrotic and inflammatory processes were confirmed by real-time PCR and Western blotting assays for the increased fibronectin, CTGF, PAI-1, and TNFα mRNA and protein expressions.
995 21487074 Diabetes also significantly increased NADPH oxidase (NOX) expression and protein nitration along with upregulation of angiotensin II (Ang II) and its receptor expression.
996 21487074 Furthermore, chronic infusion of Ang II to normal mice at a subpressor dose induced diabetes-like lung fibrosis, and Ang II receptor AT1 blocker (losartan) abolished the lung fibrotic and inflammatory responses in diabetic mice.
997 21487074 These results suggest that Ang II plays a critical role in diabetic lung fibrosis, which is most likely caused by NOX activation-mediated nitrosative damage.
998 21487521 Similarly, activities of NADPH oxidase and caspase-3 changed in parallel with mRNA levels.
999 21525431 The present study was performed to investigate the underlying mechanism, particularly the roles of reactive oxygen species (ROS) and protein kinase C (PKC), in the diabetes-induced canonical transient receptor potential 6 (TRPC6) downregulation.
1000 21525431 Catalase as well as superoxide dismutase were able to prevent the inhibitory effect of HG on TRPC6.
1001 21525431 Specific knockdown of Nox4, a component of NADPH oxidase, increased TRPC6 protein expression.
1002 21525431 Furthermore, either knockdown of TRPC6 or HG treatment significantly decreased ANG II-stimulated MC contraction, and the HG-impaired MC contraction was rescued by overexpression of TRPC6.
1003 21525431 These results suggest that hyperglycemia in diabetes downregulated TRPC6 protein expression in MCs through a NADPH oxidase Nox4-ROS-PKC pathway, proving a mechanism for impaired MC contraction in diabetes.
1004 21525431 The present study was performed to investigate the underlying mechanism, particularly the roles of reactive oxygen species (ROS) and protein kinase C (PKC), in the diabetes-induced canonical transient receptor potential 6 (TRPC6) downregulation.
1005 21525431 Catalase as well as superoxide dismutase were able to prevent the inhibitory effect of HG on TRPC6.
1006 21525431 Specific knockdown of Nox4, a component of NADPH oxidase, increased TRPC6 protein expression.
1007 21525431 Furthermore, either knockdown of TRPC6 or HG treatment significantly decreased ANG II-stimulated MC contraction, and the HG-impaired MC contraction was rescued by overexpression of TRPC6.
1008 21525431 These results suggest that hyperglycemia in diabetes downregulated TRPC6 protein expression in MCs through a NADPH oxidase Nox4-ROS-PKC pathway, proving a mechanism for impaired MC contraction in diabetes.
1009 21629295 The NOX1 (NADPH oxidase 1) and NOX2 oxidases are the major sources of ROS in the artery wall in conditions such as hypertension, hypercholesterolaemia, diabetes and ageing, and so they are important contributors to the oxidative stress, endothelial dysfunction and vascular inflammation that underlies arterial remodelling and atherogenesis.
1010 21629295 In this Review, we advance the concept that compared to the use of conventional antioxidants, inhibiting NOX1 and NOX2 oxidases is a superior approach for combating oxidative stress.
1011 21629295 In addition, we highlight the crucial role of the NADPH oxidase regulatory subunit, p47phox, in the activity of vascular NOX1 and NOX2 oxidases, and suggest how a better understanding of its specific molecular interactions may enable the development of novel isoform-selective drugs to prevent or treat cardiovascular diseases.
1012 21659763 Although large-scale clinical trials using classical antioxidants have failed to show a significant effect on the development of vascular complications in diabetes, new strategies targeting NF-E2-related factor 2, the primary transcription factor that controls the antioxidant response, mitochondrial dysfunction, or NADPH oxidase might provide a potential approach for the prevention and treatment of diabetic nephropathy.
1013 21676908 Blockade of NADPH oxidase restores vasoreparative function in diabetic CD34+ cells.
1014 21681163 TNF-α and IL-6, produced by adipose tissue, increase NADPH oxidase activity activating protein kinase C and NFκB leading to an higher oxidative stress.
1015 21728966 In lipopolysaccharide (LPS)-stimulated macrophages, SF23 decreased nitrite production and attenuated the mRNA expression of both iNOS and COX-2.
1016 21728966 Interestingly, SF23, but not rosiglitazone, prevented LPS-induced mitochondrial membrane hyperpolarization, apoptosis, reactive oxygen species (ROS) generation, and the expression of NADPH oxidase subunits, Nox1 and Nox2.
1017 21728966 Finally, in macrophages exposed to high concentrations of glucose, SF23 induced significant increases in the mRNA expression of glucose transporters, insulin receptor substrate and mitoNEET.
1018 21729002 Exercise, through laminar shear stress activation, down-regulates endothelial AT1R (angiotensin II type 1 receptor) expression, leading to decreases in NADPH oxidase activity and superoxide anion production, which in turn decreases ROS (reactive oxygen species) generation, and preserves endothelial NO bioavailability and its protective anti-atherogenic effects.
1019 21729693 Human endothelial cells (HEC) from EA.hy926 line were incubated with AGE-LDL in the presence/absence of Am and the oxidative and inflammatory status of the cells was evaluated along with the p38 MAPK and NF-κB signalling pathways.
1020 21729693 The gene expression of NADPH subunits (p22(phox), NOX4), eNOS and inflammatory molecules (MCP-1, VCAM-1) were determined by Real Time PCR, while the protein expression of p22(phox), MCP-1, iNOS, phospho-p38 MAPK and phospho-p65 NF-κB subunit were measured by Western Blot.
1021 21729693 Results showed that in HEC incubated with AGE-LDL, Am led to: (i) decrease of the oxidative stress: by reducing p22(phox), NOX4, iNOS expression, NADPH oxidase activity, 4-HNE and 3-nitrotyrosine levels; (ii) decrease of the inflammatory stress: by the reduction of MCP-1 and VCAM-1 expression, as well as of the number of monocytes adhered to HEC; (iii) inhibition of ROS-sensitive signalling pathways: by decreasing phosphorylation of p38 MAPK and p65 NF-κB subunits.
1022 21738950 The aim of this study was to determine the circulating concentrations and expression levels of calprotectin subunits (S100A8 and S100A9) in visceral adipose tissue (VAT), exploring its impact on insulin resistance and inflammation and the effect of weight loss.
1023 21738950 Calprotectin was mainly expressed by SVFCs, and its expression was significantly correlated (P < 0.01) with mRNA levels of the monocyte-macrophage-related molecules macrophage-specific antigen CD68 (CD68), monocyte chemotactic protein 1 (MCP1), integrin α-M (CD11B), and NADPH oxidase 2 (NOX2).
1024 21738950 Tumor necrosis factor-α treatment significantly enhanced (P < 0.05) the mRNA levels of S100 calcium-binding protein A8 (S100A8) of human visceral adipocytes.
1025 21823057 Rosuvastatin blocks advanced glycation end products-elicited reduction of macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1026 21823057 Adenosine triphosphate-binding membrane cassette transporter A1 (ABCA1) and ABCG1 play a crucial role in macrophage cholesterol efflux, which is a novel therapeutic target for atherosclerosis.
1027 21823057 We examined here whether AGE-RAGE axis could impair cholesterol efflux from human macrophage cells, THP-1 cells by suppressing ABCA1 and ABCG1 expression.
1028 21823057 AGE increased reactive oxygen species generation in THP-1 cells, which was completely inhibited by rosuvastatin, anti-RAGE-antibody or diphenylene iodonium chloride (DPI), an inhibitor of NADPH oxidase.
1029 21823057 AGE decreased ABCA1 and ABCG1 mRNA levels, and subsequently reduced cholesterol efflux from THP-1 cells, which was prevented by GGPP.
1030 21823057 The results demonstrated that rosuvastatin could inhibit the AGE-induced reduction of THP-1 macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1031 21823057 Rosuvastatin blocks advanced glycation end products-elicited reduction of macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1032 21823057 Adenosine triphosphate-binding membrane cassette transporter A1 (ABCA1) and ABCG1 play a crucial role in macrophage cholesterol efflux, which is a novel therapeutic target for atherosclerosis.
1033 21823057 We examined here whether AGE-RAGE axis could impair cholesterol efflux from human macrophage cells, THP-1 cells by suppressing ABCA1 and ABCG1 expression.
1034 21823057 AGE increased reactive oxygen species generation in THP-1 cells, which was completely inhibited by rosuvastatin, anti-RAGE-antibody or diphenylene iodonium chloride (DPI), an inhibitor of NADPH oxidase.
1035 21823057 AGE decreased ABCA1 and ABCG1 mRNA levels, and subsequently reduced cholesterol efflux from THP-1 cells, which was prevented by GGPP.
1036 21823057 The results demonstrated that rosuvastatin could inhibit the AGE-induced reduction of THP-1 macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1037 21823057 Rosuvastatin blocks advanced glycation end products-elicited reduction of macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1038 21823057 Adenosine triphosphate-binding membrane cassette transporter A1 (ABCA1) and ABCG1 play a crucial role in macrophage cholesterol efflux, which is a novel therapeutic target for atherosclerosis.
1039 21823057 We examined here whether AGE-RAGE axis could impair cholesterol efflux from human macrophage cells, THP-1 cells by suppressing ABCA1 and ABCG1 expression.
1040 21823057 AGE increased reactive oxygen species generation in THP-1 cells, which was completely inhibited by rosuvastatin, anti-RAGE-antibody or diphenylene iodonium chloride (DPI), an inhibitor of NADPH oxidase.
1041 21823057 AGE decreased ABCA1 and ABCG1 mRNA levels, and subsequently reduced cholesterol efflux from THP-1 cells, which was prevented by GGPP.
1042 21823057 The results demonstrated that rosuvastatin could inhibit the AGE-induced reduction of THP-1 macrophage cholesterol efflux by suppressing NADPH oxidase activity via inhibition of geranylgeranylation of Rac-1.
1043 21872458 NADPH oxidase p22phox polymorphisms and oxidative stress in patients with obstructive sleep apnoea.
1044 21917632 Superoxide production and NADPH oxidase activity in fat, as well as urinary 8-hydroxy-2'-deoxyguanosine excretion, were decreased in KKAy mice after DFO treatment while p22(phox) expression in adipose tissue was diminished in such mice.
1045 21940665 Angiotensin II-NADPH oxidase-derived superoxide mediates diabetes-attenuated cell excitability of aortic baroreceptor neurons.
1046 21940665 The present study examined the effects of an angiotensin II type I receptor (AT(1)R) antagonist (losartan), a NADPH oxidase inhibitor (apocynin), and a superoxide dismutase mimetic (tempol) on the enhanced HCN currents and attenuated cell excitability in diabetic nodose neurons.
1047 21940665 These findings suggest that endogenous angiotensin II-NADPH oxidase-superoxide signaling contributes to the enhanced HCN currents and the depressed cell excitation in the aortic baroreceptor neurons of diabetic rats.
1048 21940665 Angiotensin II-NADPH oxidase-derived superoxide mediates diabetes-attenuated cell excitability of aortic baroreceptor neurons.
1049 21940665 The present study examined the effects of an angiotensin II type I receptor (AT(1)R) antagonist (losartan), a NADPH oxidase inhibitor (apocynin), and a superoxide dismutase mimetic (tempol) on the enhanced HCN currents and attenuated cell excitability in diabetic nodose neurons.
1050 21940665 These findings suggest that endogenous angiotensin II-NADPH oxidase-superoxide signaling contributes to the enhanced HCN currents and the depressed cell excitation in the aortic baroreceptor neurons of diabetic rats.
1051 21940665 Angiotensin II-NADPH oxidase-derived superoxide mediates diabetes-attenuated cell excitability of aortic baroreceptor neurons.
1052 21940665 The present study examined the effects of an angiotensin II type I receptor (AT(1)R) antagonist (losartan), a NADPH oxidase inhibitor (apocynin), and a superoxide dismutase mimetic (tempol) on the enhanced HCN currents and attenuated cell excitability in diabetic nodose neurons.
1053 21940665 These findings suggest that endogenous angiotensin II-NADPH oxidase-superoxide signaling contributes to the enhanced HCN currents and the depressed cell excitation in the aortic baroreceptor neurons of diabetic rats.
1054 22031600 This study explored the role of the NADPH oxidase Nox4 as a source of reactive oxygen species (ROS) involved in the development of diabetic cardiomyopathy.
1055 22031600 NADPH oxidase activity, ROS generation, and the expression of Nox4, but Nox1 or Nox2, were increased in left ventricular tissue of the diabetic rats.
1056 22031600 Expression of molecular markers of hypertrophy and myofibrosis including fibronectin, collagen, α-smooth muscle actin, and β-myosin heavy chain were also increased.
1057 22031600 Exposure of cultured cardiac myocytes to 25 mM glucose [high glucose (HG)] increased NADPH oxidase activity, the expression of Nox4, and molecular markers of cardiac injury.
1058 22031600 This study explored the role of the NADPH oxidase Nox4 as a source of reactive oxygen species (ROS) involved in the development of diabetic cardiomyopathy.
1059 22031600 NADPH oxidase activity, ROS generation, and the expression of Nox4, but Nox1 or Nox2, were increased in left ventricular tissue of the diabetic rats.
1060 22031600 Expression of molecular markers of hypertrophy and myofibrosis including fibronectin, collagen, α-smooth muscle actin, and β-myosin heavy chain were also increased.
1061 22031600 Exposure of cultured cardiac myocytes to 25 mM glucose [high glucose (HG)] increased NADPH oxidase activity, the expression of Nox4, and molecular markers of cardiac injury.
1062 22031600 This study explored the role of the NADPH oxidase Nox4 as a source of reactive oxygen species (ROS) involved in the development of diabetic cardiomyopathy.
1063 22031600 NADPH oxidase activity, ROS generation, and the expression of Nox4, but Nox1 or Nox2, were increased in left ventricular tissue of the diabetic rats.
1064 22031600 Expression of molecular markers of hypertrophy and myofibrosis including fibronectin, collagen, α-smooth muscle actin, and β-myosin heavy chain were also increased.
1065 22031600 Exposure of cultured cardiac myocytes to 25 mM glucose [high glucose (HG)] increased NADPH oxidase activity, the expression of Nox4, and molecular markers of cardiac injury.
1066 22033153 Modulation of AT-1R/CHOP-JNK-Caspase12 pathway by olmesartan treatment attenuates ER stress-induced renal apoptosis in streptozotocin-induced diabetic mice.
1067 22033153 Since, the potential negative role of Ang-II in the pathogenesis of ER stress-mediated apoptosis is poorly understood; we evaluated whether treatment of mice with AT-1R specific blocker, olmesartan is associated with the reduction of ER stress-induced renal apoptosis in streptozotocin (STZ)-induced diabetic animal model.
1068 22033153 We employed western blot analysis to measure the renal protein expressions level of NADPH oxidase subunits, ER chaperone GRP78 and the ER-associated apoptosis proteins.
1069 22033153 The diabetic kidney mice were found to have increased protein expressions of NADPH oxidase subunits, GRP78 and ER-associated apoptosis proteins, such as TRAF2, IRE-1α, CHOP, p-JNK and procaspase-12, in comparison to normal mice, and which were significantly blunted by the olmesartan treatment in diabetic kidney mice.
1070 22033153 Considering all the findings, it is suggested that the AT-1R specific blocker-olmesartan treatment could be a potential therapy in treating ER stress-induced renal apoptosis via the modulation of AT-1R/CHOP-JNK-Caspase12 pathway in STZ-induced diabetic mice.
1071 22033153 Modulation of AT-1R/CHOP-JNK-Caspase12 pathway by olmesartan treatment attenuates ER stress-induced renal apoptosis in streptozotocin-induced diabetic mice.
1072 22033153 Since, the potential negative role of Ang-II in the pathogenesis of ER stress-mediated apoptosis is poorly understood; we evaluated whether treatment of mice with AT-1R specific blocker, olmesartan is associated with the reduction of ER stress-induced renal apoptosis in streptozotocin (STZ)-induced diabetic animal model.
1073 22033153 We employed western blot analysis to measure the renal protein expressions level of NADPH oxidase subunits, ER chaperone GRP78 and the ER-associated apoptosis proteins.
1074 22033153 The diabetic kidney mice were found to have increased protein expressions of NADPH oxidase subunits, GRP78 and ER-associated apoptosis proteins, such as TRAF2, IRE-1α, CHOP, p-JNK and procaspase-12, in comparison to normal mice, and which were significantly blunted by the olmesartan treatment in diabetic kidney mice.
1075 22033153 Considering all the findings, it is suggested that the AT-1R specific blocker-olmesartan treatment could be a potential therapy in treating ER stress-induced renal apoptosis via the modulation of AT-1R/CHOP-JNK-Caspase12 pathway in STZ-induced diabetic mice.
1076 22048812 Increased ROS and RNI generation were found to be mediated through the upregulation of NADPH oxidase and inducible nitric oxide synthase (iNOS), respectively, as evident from the fact that AGE-treated neutrophils failed to generate ROS and RNI in presence of diphenyleneiodonium, a flavoprotein inhibitor for both enzymes.
1077 22063193 When atria were paced at 1.2 Hz, N-acetyl cystein (antioxidant, NAC), α-lipoic acid (antioxidant), tempol (superoxide dismutase mimic), and apocynin (NADPH oxidase inhibitor; NOX inhibitor) did not affect ANP secretion and atrial contractility.
1078 22073309 In both cultured human umbilical vein endothelial cells and rat microvascular preparations, visfatin (50 ng/mL) stimulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, as determined by lucigenin-derived chemiluminiscence.
1079 22073309 The relaxation to ACh impaired by visfatin was restored by the NADPH oxidase inhibitor apocynin (10 µmol/L).
1080 22073309 Additionally, the Nampt inhibitor APO866 (10 mmol/L to 10 µmol/L), but not an insulin receptor-blocking antibody, also prevented the stimulation of NADPH oxidase and the relaxation impairment elicited by visfatin.
1081 22073309 Accordingly, the product of Nampt activity nicotinamide mononucleotide (100 nmol/L to 1 mmol/L) stimulated endothelial NADPH oxidase activity and concentration-dependently impaired ACh-induced vasorelaxation.
1082 22073309 In conclusion, visfatin impairs endothelium-dependent relaxation through a mechanism involving NADPH oxidase stimulation and relying on Nampt enzymatic activity, and therefore arises as a potential new player in the development of endothelial dysfunction.
1083 22073309 In both cultured human umbilical vein endothelial cells and rat microvascular preparations, visfatin (50 ng/mL) stimulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, as determined by lucigenin-derived chemiluminiscence.
1084 22073309 The relaxation to ACh impaired by visfatin was restored by the NADPH oxidase inhibitor apocynin (10 µmol/L).
1085 22073309 Additionally, the Nampt inhibitor APO866 (10 mmol/L to 10 µmol/L), but not an insulin receptor-blocking antibody, also prevented the stimulation of NADPH oxidase and the relaxation impairment elicited by visfatin.
1086 22073309 Accordingly, the product of Nampt activity nicotinamide mononucleotide (100 nmol/L to 1 mmol/L) stimulated endothelial NADPH oxidase activity and concentration-dependently impaired ACh-induced vasorelaxation.
1087 22073309 In conclusion, visfatin impairs endothelium-dependent relaxation through a mechanism involving NADPH oxidase stimulation and relying on Nampt enzymatic activity, and therefore arises as a potential new player in the development of endothelial dysfunction.
1088 22073309 In both cultured human umbilical vein endothelial cells and rat microvascular preparations, visfatin (50 ng/mL) stimulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, as determined by lucigenin-derived chemiluminiscence.
1089 22073309 The relaxation to ACh impaired by visfatin was restored by the NADPH oxidase inhibitor apocynin (10 µmol/L).
1090 22073309 Additionally, the Nampt inhibitor APO866 (10 mmol/L to 10 µmol/L), but not an insulin receptor-blocking antibody, also prevented the stimulation of NADPH oxidase and the relaxation impairment elicited by visfatin.
1091 22073309 Accordingly, the product of Nampt activity nicotinamide mononucleotide (100 nmol/L to 1 mmol/L) stimulated endothelial NADPH oxidase activity and concentration-dependently impaired ACh-induced vasorelaxation.
1092 22073309 In conclusion, visfatin impairs endothelium-dependent relaxation through a mechanism involving NADPH oxidase stimulation and relying on Nampt enzymatic activity, and therefore arises as a potential new player in the development of endothelial dysfunction.
1093 22073309 In both cultured human umbilical vein endothelial cells and rat microvascular preparations, visfatin (50 ng/mL) stimulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, as determined by lucigenin-derived chemiluminiscence.
1094 22073309 The relaxation to ACh impaired by visfatin was restored by the NADPH oxidase inhibitor apocynin (10 µmol/L).
1095 22073309 Additionally, the Nampt inhibitor APO866 (10 mmol/L to 10 µmol/L), but not an insulin receptor-blocking antibody, also prevented the stimulation of NADPH oxidase and the relaxation impairment elicited by visfatin.
1096 22073309 Accordingly, the product of Nampt activity nicotinamide mononucleotide (100 nmol/L to 1 mmol/L) stimulated endothelial NADPH oxidase activity and concentration-dependently impaired ACh-induced vasorelaxation.
1097 22073309 In conclusion, visfatin impairs endothelium-dependent relaxation through a mechanism involving NADPH oxidase stimulation and relying on Nampt enzymatic activity, and therefore arises as a potential new player in the development of endothelial dysfunction.
1098 22073309 In both cultured human umbilical vein endothelial cells and rat microvascular preparations, visfatin (50 ng/mL) stimulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, as determined by lucigenin-derived chemiluminiscence.
1099 22073309 The relaxation to ACh impaired by visfatin was restored by the NADPH oxidase inhibitor apocynin (10 µmol/L).
1100 22073309 Additionally, the Nampt inhibitor APO866 (10 mmol/L to 10 µmol/L), but not an insulin receptor-blocking antibody, also prevented the stimulation of NADPH oxidase and the relaxation impairment elicited by visfatin.
1101 22073309 Accordingly, the product of Nampt activity nicotinamide mononucleotide (100 nmol/L to 1 mmol/L) stimulated endothelial NADPH oxidase activity and concentration-dependently impaired ACh-induced vasorelaxation.
1102 22073309 In conclusion, visfatin impairs endothelium-dependent relaxation through a mechanism involving NADPH oxidase stimulation and relying on Nampt enzymatic activity, and therefore arises as a potential new player in the development of endothelial dysfunction.
1103 22107602 Nicorandil prevents endothelial dysfunction due to antioxidative effects via normalisation of NADPH oxidase and nitric oxide synthase in streptozotocin diabetic rats.
1104 22138248 The intracellular reactive oxygen species (ROS) level was also remarkably reduced by Sch as well as the enhanced NADPH oxidase activity, superoxide anion levels, NOX4 and p22phox protein expression, and phosphorylation of p47phox and p67phox.
1105 22138248 The phosphorylation level of mitogen activated kinase (MAPK) protein, phospho-Erk1/2 and -p38, and Akt was also significantly inhibited by Sch under HG condition.
1106 22178943 Significant p-p38 MAPK activation in DN 14-3-3 mice compared to wild type mice (WT) after diabetes induction and with a corresponding up regulation of its downstream effectors, p-MAPK activated protein kinase 2 (MAPKAPK-2).
1107 22178943 Marked increases in cardiac hypertrophy, fibrosis and inflammation were observed with a corresponding up-regulation of atrial natriuretic peptide, osteopontin, connective tissue growth factor, tumor necrosis factor α, interleukin (IL)-1β, IL-6 and cellular adhesion molecules.
1108 22178943 Moreover, reactive oxygen species, left ventricular expression of NADPH oxidase subunits, p22 phox, p67 phox, and Nox4, and lipid peroxidation levels were significantly increased in diabetic DN 14-3-3mice compared to diabetic WT mice.
1109 22178943 In conclusion, our data suggests that depletion of 14-3-3 protein induces cardiac oxidative stress, inflammation and remodeling after experimental diabetes induction mediated through p38 MAPK, MAPKAPK-2 and NF-κB signaling.
1110 22271422 We investigated the role of aminoguanidine and benfotiamine on the inhibition of reactive oxygen species (ROS) generation in macrophages induced by advanced glycated albumin (AGE-albumin) and its relationship with cell cholesterol homeostasis, emphasizing the expression of the ATP binding cassette transporter A-1 (ABCA-1).
1111 22271422 ROS production and ABCA-1 protein level were determined by flow cytometry in J774 macrophages treated along time with control (C) or AGE-albumin alone or in the presence of aminoguanidine or benfotiamine.
1112 22271422 Compared to C-albumin, AGE-albumin increased ROS production in macrophages, which was ascribed to the activities of NADPH oxidase and of the mitochondrial system.
1113 22271422 Inhibition of oxidative stress induced by AGE-albumin prevents disturbances in reverse cholesterol transport by curbing the reduction of ABCA-1 elicited by advanced glycation in macrophages and therefore may contribute to the prevention of atherosclerosis in diabetes mellitus.
1114 22308229 Elevated angiotensin II in rat nodose ganglia primes diabetes-blunted arterial baroreflex sensitivity: involvement of NADPH oxidase-derived superoxide.
1115 22308229 Our previous study has shown that angiotensin II (Ang II)-NADPH oxidase-superoxide signaling is associated with the reduced cell excitability in the aortic baroreceptor neurons (a primary afferent limb of the arterial baroreflex) from diabetic rats.
1116 22308229 Using Ang II (125)I radioimmunoassay and lucigenin chemiluminescence method, we found Ang II concentration, NADPH oxidase activity, and superoxide production in the nodose ganglia were enhanced in diabetic rats, compared to sham rats.
1117 22308229 Local microinjection (50 nl) of losartan (an AT(1) receptor antagonist, 1 nmol), apocynin (a NADPH oxidase inhibitor, 1 nmol), and tempol (a superoxide dismutase mimetic, 10 nmol) into the nodose ganglia significantly improved the arterial baroreflex sensitivity in diabetic rats.
1118 22308229 These results indicate that overactivation of the Ang II-NADPH oxidase-superoxide signal pathway in the nodose ganglia contributes to the blunted baroreflex sensitivity in diabetes.
1119 22308229 Elevated angiotensin II in rat nodose ganglia primes diabetes-blunted arterial baroreflex sensitivity: involvement of NADPH oxidase-derived superoxide.
1120 22308229 Our previous study has shown that angiotensin II (Ang II)-NADPH oxidase-superoxide signaling is associated with the reduced cell excitability in the aortic baroreceptor neurons (a primary afferent limb of the arterial baroreflex) from diabetic rats.
1121 22308229 Using Ang II (125)I radioimmunoassay and lucigenin chemiluminescence method, we found Ang II concentration, NADPH oxidase activity, and superoxide production in the nodose ganglia were enhanced in diabetic rats, compared to sham rats.
1122 22308229 Local microinjection (50 nl) of losartan (an AT(1) receptor antagonist, 1 nmol), apocynin (a NADPH oxidase inhibitor, 1 nmol), and tempol (a superoxide dismutase mimetic, 10 nmol) into the nodose ganglia significantly improved the arterial baroreflex sensitivity in diabetic rats.
1123 22308229 These results indicate that overactivation of the Ang II-NADPH oxidase-superoxide signal pathway in the nodose ganglia contributes to the blunted baroreflex sensitivity in diabetes.
1124 22308229 Elevated angiotensin II in rat nodose ganglia primes diabetes-blunted arterial baroreflex sensitivity: involvement of NADPH oxidase-derived superoxide.
1125 22308229 Our previous study has shown that angiotensin II (Ang II)-NADPH oxidase-superoxide signaling is associated with the reduced cell excitability in the aortic baroreceptor neurons (a primary afferent limb of the arterial baroreflex) from diabetic rats.
1126 22308229 Using Ang II (125)I radioimmunoassay and lucigenin chemiluminescence method, we found Ang II concentration, NADPH oxidase activity, and superoxide production in the nodose ganglia were enhanced in diabetic rats, compared to sham rats.
1127 22308229 Local microinjection (50 nl) of losartan (an AT(1) receptor antagonist, 1 nmol), apocynin (a NADPH oxidase inhibitor, 1 nmol), and tempol (a superoxide dismutase mimetic, 10 nmol) into the nodose ganglia significantly improved the arterial baroreflex sensitivity in diabetic rats.
1128 22308229 These results indicate that overactivation of the Ang II-NADPH oxidase-superoxide signal pathway in the nodose ganglia contributes to the blunted baroreflex sensitivity in diabetes.
1129 22308229 Elevated angiotensin II in rat nodose ganglia primes diabetes-blunted arterial baroreflex sensitivity: involvement of NADPH oxidase-derived superoxide.
1130 22308229 Our previous study has shown that angiotensin II (Ang II)-NADPH oxidase-superoxide signaling is associated with the reduced cell excitability in the aortic baroreceptor neurons (a primary afferent limb of the arterial baroreflex) from diabetic rats.
1131 22308229 Using Ang II (125)I radioimmunoassay and lucigenin chemiluminescence method, we found Ang II concentration, NADPH oxidase activity, and superoxide production in the nodose ganglia were enhanced in diabetic rats, compared to sham rats.
1132 22308229 Local microinjection (50 nl) of losartan (an AT(1) receptor antagonist, 1 nmol), apocynin (a NADPH oxidase inhibitor, 1 nmol), and tempol (a superoxide dismutase mimetic, 10 nmol) into the nodose ganglia significantly improved the arterial baroreflex sensitivity in diabetic rats.
1133 22308229 These results indicate that overactivation of the Ang II-NADPH oxidase-superoxide signal pathway in the nodose ganglia contributes to the blunted baroreflex sensitivity in diabetes.
1134 22308229 Elevated angiotensin II in rat nodose ganglia primes diabetes-blunted arterial baroreflex sensitivity: involvement of NADPH oxidase-derived superoxide.
1135 22308229 Our previous study has shown that angiotensin II (Ang II)-NADPH oxidase-superoxide signaling is associated with the reduced cell excitability in the aortic baroreceptor neurons (a primary afferent limb of the arterial baroreflex) from diabetic rats.
1136 22308229 Using Ang II (125)I radioimmunoassay and lucigenin chemiluminescence method, we found Ang II concentration, NADPH oxidase activity, and superoxide production in the nodose ganglia were enhanced in diabetic rats, compared to sham rats.
1137 22308229 Local microinjection (50 nl) of losartan (an AT(1) receptor antagonist, 1 nmol), apocynin (a NADPH oxidase inhibitor, 1 nmol), and tempol (a superoxide dismutase mimetic, 10 nmol) into the nodose ganglia significantly improved the arterial baroreflex sensitivity in diabetic rats.
1138 22308229 These results indicate that overactivation of the Ang II-NADPH oxidase-superoxide signal pathway in the nodose ganglia contributes to the blunted baroreflex sensitivity in diabetes.
1139 22355231 Analogous to NADPH oxidase, role of NOS is proved beyond any doubt for killing of intracellular pathogen like Mycobacterium tuberculosis.
1140 22431005 But there has been a growing understanding of the central importance of G6PD to cellular physiology as it is a major source of NADPH that is required by many essential cellular systems including the antioxidant pathways, nitric oxide synthase, NADPH oxidase, cytochrome p450 system, and others.
1141 22542658 Effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1142 22542658 This study investigated the effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1143 22542658 The cardiac mRNA expression of adiponectin receptors 1 and 2, and monocyte chemoattractant protein-1 (MCP-1) was assayed by reverse transcript-polymerase chain reaction (RT-PCR).
1144 22542658 The cardiac mRNA expression of p22phox and NOX4 was assayed by real-time fluorescence quantitative PCR.
1145 22542658 The protein expression of adiponectin receptors 1 and 2, and connective tissue growth factor (CTGF)were determined by immunohistochemistrial staining.
1146 22542658 Heart function, plasma and myocardial adiponectin levels, the protein and mRNA expression of myocardial adiponectin receptors 1 and 2, myocardial phosphorylation of AMPK-α (Thr172) and the protein expression of myocardial GLUT4 were significantly decreased in diabetic rats compared to control (P<0.05).
1147 22542658 The expression of myocardial p22phox, Nox4, MCP-1 and CTGF was significantly increased in diabetic rats compared to control (P<0.05).
1148 22542658 Rosiglitazone treatment significantly attenuated the increased ratio of heart weight to body weight, and the increased expression of myocardial p22phox, Nox4, MCP-1 and CTGF in diabetic rats (P<0.05).
1149 22542658 Heart function, plasma and myocardial adiponectin levels, the expression of myocardial adiponectin receptors 1 and 2 and GLUT4, and myocardial phosphorylation of AMPK-α (Thr172) were significantly decreased in diabetic treated with rosiglitazone compared to diabetic untreated (P<0.05).
1150 22542658 These results suggest that the protective effects of rosiglitazone on diabetic rat hearts may be attributable to the increased myocardial adiponectin and its receptors and the decreased myocardial NADPH oxidase.
1151 22542658 Effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1152 22542658 This study investigated the effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1153 22542658 The cardiac mRNA expression of adiponectin receptors 1 and 2, and monocyte chemoattractant protein-1 (MCP-1) was assayed by reverse transcript-polymerase chain reaction (RT-PCR).
1154 22542658 The cardiac mRNA expression of p22phox and NOX4 was assayed by real-time fluorescence quantitative PCR.
1155 22542658 The protein expression of adiponectin receptors 1 and 2, and connective tissue growth factor (CTGF)were determined by immunohistochemistrial staining.
1156 22542658 Heart function, plasma and myocardial adiponectin levels, the protein and mRNA expression of myocardial adiponectin receptors 1 and 2, myocardial phosphorylation of AMPK-α (Thr172) and the protein expression of myocardial GLUT4 were significantly decreased in diabetic rats compared to control (P<0.05).
1157 22542658 The expression of myocardial p22phox, Nox4, MCP-1 and CTGF was significantly increased in diabetic rats compared to control (P<0.05).
1158 22542658 Rosiglitazone treatment significantly attenuated the increased ratio of heart weight to body weight, and the increased expression of myocardial p22phox, Nox4, MCP-1 and CTGF in diabetic rats (P<0.05).
1159 22542658 Heart function, plasma and myocardial adiponectin levels, the expression of myocardial adiponectin receptors 1 and 2 and GLUT4, and myocardial phosphorylation of AMPK-α (Thr172) were significantly decreased in diabetic treated with rosiglitazone compared to diabetic untreated (P<0.05).
1160 22542658 These results suggest that the protective effects of rosiglitazone on diabetic rat hearts may be attributable to the increased myocardial adiponectin and its receptors and the decreased myocardial NADPH oxidase.
1161 22542658 Effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1162 22542658 This study investigated the effect of rosiglitazone on the expression of cardiac adiponectin receptors and NADPH oxidase in type 2 diabetic rats.
1163 22542658 The cardiac mRNA expression of adiponectin receptors 1 and 2, and monocyte chemoattractant protein-1 (MCP-1) was assayed by reverse transcript-polymerase chain reaction (RT-PCR).
1164 22542658 The cardiac mRNA expression of p22phox and NOX4 was assayed by real-time fluorescence quantitative PCR.
1165 22542658 The protein expression of adiponectin receptors 1 and 2, and connective tissue growth factor (CTGF)were determined by immunohistochemistrial staining.
1166 22542658 Heart function, plasma and myocardial adiponectin levels, the protein and mRNA expression of myocardial adiponectin receptors 1 and 2, myocardial phosphorylation of AMPK-α (Thr172) and the protein expression of myocardial GLUT4 were significantly decreased in diabetic rats compared to control (P<0.05).
1167 22542658 The expression of myocardial p22phox, Nox4, MCP-1 and CTGF was significantly increased in diabetic rats compared to control (P<0.05).
1168 22542658 Rosiglitazone treatment significantly attenuated the increased ratio of heart weight to body weight, and the increased expression of myocardial p22phox, Nox4, MCP-1 and CTGF in diabetic rats (P<0.05).
1169 22542658 Heart function, plasma and myocardial adiponectin levels, the expression of myocardial adiponectin receptors 1 and 2 and GLUT4, and myocardial phosphorylation of AMPK-α (Thr172) were significantly decreased in diabetic treated with rosiglitazone compared to diabetic untreated (P<0.05).
1170 22542658 These results suggest that the protective effects of rosiglitazone on diabetic rat hearts may be attributable to the increased myocardial adiponectin and its receptors and the decreased myocardial NADPH oxidase.
1171 22553146 Advanced glycation end product Nε-carboxymethyllysine induces endothelial cell injury: the involvement of SHP-1-regulated VEGFR-2 dephosphorylation.
1172 22553146 Here, we tested the hypothesis that NADPH oxidase/reactive oxygen species (ROS)-mediated SH2 domain-containing tyrosine phosphatase-1 (SHP-1) activation by CML inhibits the VEGF receptor-2 (VEGFR-2, KDR/Flk-1) activation, resulting in HUVEC injury.
1173 22553146 CML significantly inhibited cell proliferation and induced apoptosis and reduced VEGFR-2 activation in parallel with the increased SHP-1 protein expression and activity in HUVECs.
1174 22553146 Exposure of HUVECs to CML also remarkably escalated the integration of SHP-1 with VEGFR-2.
1175 22553146 We conclude that a pathway of tyrosine phosphatase SHP-1-regulated VEGFR-2 dephosphorylation through NADPH oxidase-derived ROS is involved in the CML-triggered endothelial cell dysfunction/injury.
1176 22553146 Advanced glycation end product Nε-carboxymethyllysine induces endothelial cell injury: the involvement of SHP-1-regulated VEGFR-2 dephosphorylation.
1177 22553146 Here, we tested the hypothesis that NADPH oxidase/reactive oxygen species (ROS)-mediated SH2 domain-containing tyrosine phosphatase-1 (SHP-1) activation by CML inhibits the VEGF receptor-2 (VEGFR-2, KDR/Flk-1) activation, resulting in HUVEC injury.
1178 22553146 CML significantly inhibited cell proliferation and induced apoptosis and reduced VEGFR-2 activation in parallel with the increased SHP-1 protein expression and activity in HUVECs.
1179 22553146 Exposure of HUVECs to CML also remarkably escalated the integration of SHP-1 with VEGFR-2.
1180 22553146 We conclude that a pathway of tyrosine phosphatase SHP-1-regulated VEGFR-2 dephosphorylation through NADPH oxidase-derived ROS is involved in the CML-triggered endothelial cell dysfunction/injury.
1181 22572850 Select HAEC monolayers were treated with RSG, caffeic acid phenethyl ester (CAPE), diphenyleneiodonium (DPI), small interfering (si)RNA (to NF-κB/p65 or Nox4), or Tempol.
1182 22572850 HG increased the expression and activity of the NADPH oxidase catalytic subunit Nox4 but not Nox1 or Nox2.
1183 22581648 GIP receptor was expressed in HUVECs.
1184 22581648 GIP, an analogue of cyclic AMP or inhibitors of NADPH oxidase inhibited the AGE-induced reactive oxygen species (ROS) generation in HUVECs.
1185 22581648 GLP-1 also blocked the AGE-induced increase in mRNA levels of vascular cell adhesion molecule-1 (VCAM-1) and plasminogen activator inhibitor-1 in HUVECs.
1186 22581648 In addition, an antioxidant N-acetylcysteine mimicked the effects of GIP on RAGE and VCAM-1 gene expression in HUVECs.
1187 22581648 Our present study suggests that GIP could block the signal pathways of AGEs in HUVECs by reducing ROS generation and subsequent RAGE expression probably via GIP receptor-cyclic AMP axis.
1188 22586590 Downregulation of BK-β(1) expression in diabetic vessels is associated with upregulation of the forkhead box O subfamily transcription factor-3a (FOXO-3a)-dependent F-box-only protein (FBXO) expression.
1189 22586590 Using cellular biology, patch clamp, and videomicroscopy techniques, we found that reduced BK-β(1) expression in streptozotocin (STZ)-induced diabetic mouse arteries and in human coronary smooth muscle cells (SMCs) cultured with high glucose was attributable to an increase in protein kinase C (PKC)-β and NADPH oxidase expressions and accompanied by attenuation of Akt phosphorylation and augmentation of atrogin-1 expression.
1190 22586590 Our results suggested that oxidative stress inhibited Akt signaling and facilitated the FOXO-3a/FBXO-dependent BK-β(1) degradation in diabetic vessels.
1191 22619657 Activation of the cytosolic and mitochondrial NADPH oxidase system, impairment of the mitochondrial electron transport, activation of p66shc pathway-targeting mitochondria, endoplasmic reticular stress, and activation of the mammalian target of the rapamycin-S6 kinase pathway underlie dysregulation of mitochondrial dynamics and promote mitochondrial oxidative stress.
1192 22619657 These processes are further modulated by acetyltransferases including sirtuin 1 and sirtuin 3, the former regulating nuclear acetylation and the latter regulating mitochondrial acetylation.
1193 22644855 In addition, the levels of RAGE protein, transcription factor NF-κB p65, and the p22phox subunit of NADPH oxidase were increased, as were the serum levels of malondialdehyde and tumor necrosis factor-alpha (TNF-α; p < 0.01 vs control), suggesting that the mechanisms of oxidative stress contributed to vascular injury in the diabetic model group.
1194 22665120 In diabetic mice, we observed an increase in EGFRtk phosphorylation and ER stress marker expression (CHOP, ATF4, ATF6, and phosphorylated-eIF2α) in heart and mesenteric resistance arteries, which were reduced with AG1478, Tudca, and insulin.
1195 22665120 Cardiac fibrosis, enhanced collagen type I, and plasminogen activator inhibitor 1 were decreased with AG1478, Tudca, and insulin treatments.
1196 22665120 Moreover, in mesenteric resistance arteries, the mRNA levels of Nox2 and Nox4 and the NADPH oxidase activity were augmented in streptozotocin mice and reduced with treatments.
1197 22675339 AGEs ligate to the receptor for AGEs (RAGE), promoting protein kinase C (PKC)-dependent activation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and superoxide radical generation.
1198 22683600 Superoxide production, NADPH oxidase activity, and mRNA expression of prepro endothelin-1, p22(phox), p47(phox), and NOX-1 were significantly higher in diabetic aortas, and GW0742 treatment prevented these changes.
1199 22683600 This effect seems to be related to an increase in nitric oxide bioavailability as a result of reduced NADPH oxidase-driven superoxide production and downregulation of prepro endothelin-1.
1200 22683600 Superoxide production, NADPH oxidase activity, and mRNA expression of prepro endothelin-1, p22(phox), p47(phox), and NOX-1 were significantly higher in diabetic aortas, and GW0742 treatment prevented these changes.
1201 22683600 This effect seems to be related to an increase in nitric oxide bioavailability as a result of reduced NADPH oxidase-driven superoxide production and downregulation of prepro endothelin-1.
1202 22749956 Nox4 is a hydrogen peroxide-producing NADPH oxidase highly expressed in the kidney which has been linked to epithelial cell injury and diabetic-induced cellular dysfunction in cultured cells.
1203 22749956 Interestingly, renal Nox4 expression, mainly localized to tubular cells, decreased in the course of diabetes and this was not associated with a compensatory upregulation of Nox1 or Nox2.
1204 22749956 In the UUO model, renal expression of ICAM1, connective tissue growth factor, and fibronectin were higher in kidneys of Nox4(*/*) than control mice.
1205 22829582 At 10 min before reperfusion, diabetic mice were randomized to receive EUK134 (peroxynitrite scavenger), recombinant hTrx-1, nitrated Trx-1, apocynin (a NADPH oxidase inhibitor), or 1400W [an inducible nitric oxide synthase (iNOS) inhibitor] administration.
1206 22829582 RAGE siRNA or administration of sRAGE in diabetic mice decreased MI/R-induced iNOS and gp91(phox) expression, reduced Trx nitration, preserved Trx activity, and decreased infarct size.
1207 22890211 Paraoxonases protect against atherogenesis, as serum PON1 exerts a protective role against DM development by stimulating insulin secretion from β cells, and its unique antioxidant properties.
1208 22890211 Insulin may directly inhibit lipid peroxidation via inhibition of NADPH oxidase expression.
1209 22890211 Insulin has additional protective effects against DM-induced macrophage cholesterol accumulation by inhibiting CD36 expression (an oxidized LDL receptor), and by inhibiting HMGCoA reductase expression (the rate limiting enzyme in cholesterol biosynthesis), through inhibition of the formation of active SREBP-1 (the transcription factor that activates HMGCoA reductase).
1210 22896043 The progression of diabetic renal injury was accompanied by the upregulation of fibrotic and inflammatory markers, increased production of reactive oxygen species and NADPH oxidase activity, and elevated activity of TNF-α-converting enzyme (TACE) in the TIMP3(-/-)/Akita kidneys.
1211 22911512 In this study, we test the hypothesis that NADPH oxidase 2 (NOX2)-derived ROS may play a key role in dysfunction and apoptosis of pancreatic β-cell induced by VLDL.
1212 22911512 Our results show that the ApoCIII transgenic mice displayed increased serum TG levels, enhanced generation of ROS and impaired insulin content in pancreatic β-cells.
1213 22911512 In vitro, the treatment of pancreatic NIT-1 cells with 1 mg/ml VLDL for 12 h stimulated NOX2-derived ROS generation, decreased expression and secretion of insulin.
1214 22911512 Furthermore, we found that VLDL induced dysfunction and apoptosis of pancreatic β-cells through JNK and p53 pathways, which were rescued by siRNA-mediated NOX2 reduction.
1215 22911512 In conclusion, our data demonstrate a critical role of NOX2-derived ROS in dysfunction and apoptosis through JNK and p53 pathways in pancreatic β-cells induced by VLDL.
1216 22923476 C-peptide (1 nmol/L) prevented endothelial cell death by inhibiting protein kinase C- and NADPH oxidase-dependent intracellular ROS generation and by abolishing high glucose-induced TG2 activation, without affecting intracellular Ca(2+) levels.
1217 22927051 B. pseudomallei-induced NET formation required NADPH oxidase activation but not phosphatidylinositol-3 kinase, mitogen-activated protein kinases, or Src family kinase signaling pathways.
1218 22982780 We also investigated the mesenteric expression of the mRNAs for endothelial nitric oxide (NO) synthase (eNOS) and NADPH oxidase (Nox) in STZ-induced diabetes in both sexes.
1219 22982780 Our data also showed that in females, the levels of eNOS, Nox2, and Nox4 mRNA expression and the relative importance of NO to the regulation of vascular reactivity were substantially enhanced, whereas the importance of endothelium-derived hyperpolarizing factor (EDHF) was significantly reduced at both 1 and 8 wk after the induction of diabetes.
1220 23018793 Gp91ds-tat (0.1 µM), an inhibitor of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX), prevented the impairment of endothelium-dependent relaxation and the decrease in eNOS protein caused by MGO.
1221 23030449 NADPH oxidase (NOX) generates ROS in cytosol.
1222 23040216 Relationship between NADPH oxidase p22phox C242T, PARP-1 Val762Ala polymorphisms, angiographically verified coronary artery disease and myocardial infarction in South Indian patients with type 2 diabetes mellitus.
1223 23071093 Retinol-binding protein 4 induces inflammation in human endothelial cells by an NADPH oxidase- and nuclear factor kappa B-dependent and retinol-independent mechanism.
1224 23071093 Here we show that RBP4 induces inflammation in primary human retinal capillary endothelial cells (HRCEC) and human umbilical vein endothelial cells (HUVEC) by stimulating expression of proinflammatory molecules involved in leukocyte recruitment and adherence to endothelium, including vascular cell adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1), E-selectin, monocyte chemoattractant protein 1 (MCP-1), and interleukin-6 (IL-6).
1225 23071093 We demonstrate that these novel effects of RBP4 are independent of retinol and the RBP4 membrane receptor STRA6 and occur in part via activation of NADPH oxidase and NF-κB.
1226 23071093 Retinol-binding protein 4 induces inflammation in human endothelial cells by an NADPH oxidase- and nuclear factor kappa B-dependent and retinol-independent mechanism.
1227 23071093 Here we show that RBP4 induces inflammation in primary human retinal capillary endothelial cells (HRCEC) and human umbilical vein endothelial cells (HUVEC) by stimulating expression of proinflammatory molecules involved in leukocyte recruitment and adherence to endothelium, including vascular cell adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1), E-selectin, monocyte chemoattractant protein 1 (MCP-1), and interleukin-6 (IL-6).
1228 23071093 We demonstrate that these novel effects of RBP4 are independent of retinol and the RBP4 membrane receptor STRA6 and occur in part via activation of NADPH oxidase and NF-κB.
1229 23085514 In response to ischemic injury, ROS derived from NADPH oxidase are increased in the BM microenvironment, which is required for hypoxia and hypoxia-inducible factor-1α expression and expansion throughout the BM.
1230 23144758 NADPH oxidase 4 mediates insulin-stimulated HIF-1α and VEGF expression, and angiogenesis in vitro.
1231 23144758 Acute intensive insulin therapy causes a transient worsening of diabetic retinopathy in type 1 diabetes patients and is related to VEGF expression.
1232 23144758 Reactive oxygen species (ROS) have been shown to be involved in HIF-1α and VEGF expression induced by insulin, but the role of specific ROS sources has not been fully elucidated.
1233 23144758 In this study we examined the role of NADPH oxidase subunit 4 (Nox4) in insulin-stimulated HIF-1α and VEGF expression, and angiogenic responses in human microvascular endothelial cells (HMVECs).
1234 23144758 Here we demonstrate that knockdown of Nox4 by siRNA reduced insulin-stimulated ROS generation, the tyrosine phosphorylation of IR-β and IRS-1, but did not change the serine phosphorylation of IRS-1.
1235 23144758 Nox4 gene silencing had a much greater inhibitory effect on insulin-induced AKT activation than ERK1/2 activation, whereas it had little effect on the expression of the phosphatases such as MKP-1 and SHIP.
1236 23144758 Inhibition of Nox4 expression inhibited the transcriptional activity of VEGF through HIF-1.
1237 23144758 Overexpression of wild-type Nox4 was sufficient to increase VEGF transcriptional activity, and further enhanced insulin-stimulated the activation of VEGF.
1238 23144758 Downregulation of Nox4 expression decreased insulin-stimulated mRNA and protein expression of HIF-1α, but did not change the rate of HIF-1α degradation.
1239 23144758 Inhibition of Nox4 impaired insulin-stimulated VEGF expression, cell migration, cell proliferation, and tube formation in HMVECs.
1240 23144758 Our data indicate that Nox4-derived ROS are essential for HIF-1α-dependent VEGF expression, and angiogenesis in vitro induced by insulin.
1241 23144758 Nox4 may be an attractive therapeutic target for diabetic retinopathy caused by intensive insulin treatment.
1242 23154660 Endothelial dysfunction, macrophage infiltration and NADPH oxidase-dependent superoxide production were attenuated by erythropoietin in streptozotocin-induced diabetic rat aorta.
1243 23154660 Streptozotocin (65 mg/kg, i.v.) significantly increased macrophage infiltration and adhesion molecules, monocyte chemoattractant protein-1 and osteopontin mRNA levels in the aorta.
1244 23185302 We and others also have shown that the high glucose-induced decrease in G6PD activity is mediated, at least in part, by cAMP-dependent protein kinase A (PKA).
1245 23185302 As both the major antioxidant enzymes and NADPH oxidase, a major source of ROS, use NADPH as substrate, we explored whether G6PD activity was a critical mediator of redox balance.
1246 23185302 Interestingly, high glucose stimulated an increase in NADPH oxidase (NOX) and colocalization of G6PD with NOX, which was inhibited by the PKA inhibitor.
1247 23185302 We and others also have shown that the high glucose-induced decrease in G6PD activity is mediated, at least in part, by cAMP-dependent protein kinase A (PKA).
1248 23185302 As both the major antioxidant enzymes and NADPH oxidase, a major source of ROS, use NADPH as substrate, we explored whether G6PD activity was a critical mediator of redox balance.
1249 23185302 Interestingly, high glucose stimulated an increase in NADPH oxidase (NOX) and colocalization of G6PD with NOX, which was inhibited by the PKA inhibitor.
1250 23349484 Nox2 NADPH oxidase has a critical role in insulin resistance-related endothelial cell dysfunction.
1251 23349484 We examined the role of NADPH oxidase (Nox) and specifically Nox2 isoform in superoxide generation in two complementary in vivo models of human insulin resistance (endothelial specific and whole body).
1252 23349484 Similarly, insulin resistance-induced impairment of endothelial-mediated vasorelaxation could also be reversed using gp91ds-tat. siRNA-mediated knockdown of Nox2, which was specifically elevated in insulin-resistant endothelial cells, significantly reduced superoxide levels.
1253 23349484 Double transgenic mice with endothelial-specific insulin resistance and deletion of Nox2 showed reduced superoxide production and improved vascular function.
1254 23349484 This study identifies Nox2 as the central molecule in insulin resistance-mediated oxidative stress and vascular dysfunction.
1255 23349484 It also establishes pharmacological inhibition of Nox2 as a novel therapeutic target in insulin resistance-related vascular disease.
1256 23349484 Nox2 NADPH oxidase has a critical role in insulin resistance-related endothelial cell dysfunction.
1257 23349484 We examined the role of NADPH oxidase (Nox) and specifically Nox2 isoform in superoxide generation in two complementary in vivo models of human insulin resistance (endothelial specific and whole body).
1258 23349484 Similarly, insulin resistance-induced impairment of endothelial-mediated vasorelaxation could also be reversed using gp91ds-tat. siRNA-mediated knockdown of Nox2, which was specifically elevated in insulin-resistant endothelial cells, significantly reduced superoxide levels.
1259 23349484 Double transgenic mice with endothelial-specific insulin resistance and deletion of Nox2 showed reduced superoxide production and improved vascular function.
1260 23349484 This study identifies Nox2 as the central molecule in insulin resistance-mediated oxidative stress and vascular dysfunction.
1261 23349484 It also establishes pharmacological inhibition of Nox2 as a novel therapeutic target in insulin resistance-related vascular disease.
1262 23364453 Cohorts of diabetic rats received a 12-week treatment of vildagliptin (dipeptidyl peptidase-4 inhibitor) or exenatide (GLP-1 analog).
1263 23364453 GLP-1 decreased high-glucose-induced reactive oxygen species production and apoptotic index, as well as the levels of NADPH oxidase such as p47(phox) and gp91(phox).
1264 23364453 Furthermore, cAMP/PKA (cAMP-dependent protein kinase activity) was increased and Rho-expression was decreased in high-glucose-induced CMECs after GLP-1 treatment.
1265 23386289 Chronic granulomatous disease is a rare immunodeficiency due to defects in the phagocyte NADPH oxidase.
1266 23413427 Toll-like receptor 4 mutation protects obese mice against endothelial dysfunction by decreasing NADPH oxidase isoforms 1 and 4.
1267 23423573 A novel mechanism by which SDF-1β protects cardiac cells from palmitate-induced endoplasmic reticulum stress and apoptosis via CXCR7 and AMPK/p38 MAPK-mediated interleukin-6 generation.
1268 23423573 Exposure of cardiac cells to palmitate increased apoptosis by activating NADPH oxidase (NOX)-associated nitrosative stress and endoplasmic reticulum (ER) stress, which was abolished by pretreatment with SDF-1β via upregulation of AMP-activated protein kinase (AMPK)-mediated p38 mitogen-activated protein kinase (MAPK) phosphorylation and interleukin-6 (IL-6) production.
1269 23423573 The SDF-1β cardiac protection could be abolished by inhibition of AMPK, p38 MAPK, or IL-6.
1270 23423573 Activation of AMPK or addition of recombinant IL-6 recaptured a similar cardiac protection.
1271 23423573 SDF-1β receptor C-X-C chemokine receptor type 4 (CXCR4) antagonist AMD3100 or CXCR4 small interfering RNA could not, but CXCR7 small interfering RNA completely abolished SDF-1β's protection from palmitate-induced apoptosis and activation of AMPK and p38 MAPK.
1272 23423573 These results showed that SDF-1β protects against palmitate-induced cardiac apoptosis, which is mediated by NOX-activated nitrosative damage and ER stress, via CXCR7, to activate AMPK/p38 MAPK-mediated IL-6 generation.
1273 23437353 Effect of 12- or 15-HETE on the levels of zonula occludens protein 1 (ZO-1), reactive oxygen species (ROS), NOX2, pVEGF-R2 and pSHP1 was examined in the presence or absence of inhibitors of NADPH oxidase.
1274 23437353 ROS generation and NOX2 expression were also measured in mice retinas. 12- and 15- HETE significantly increased permeability and reduced TER and ZO-1 expression in REC.
1275 23437353 Treatment of diabetic mice with baicalein significantly decreased retinal HETE, ICAM-1, VCAM-1, IL-6, ROS generation, and NOX2 expression.
1276 23437353 Our findings suggest that 12/15-LOX contributes to vascular hyperpermeability during DR via NADPH oxidase dependent mechanism which involves suppression of protein tyrosine phosphatase and activation of VEGF-R2 signal pathway.
1277 23437353 Effect of 12- or 15-HETE on the levels of zonula occludens protein 1 (ZO-1), reactive oxygen species (ROS), NOX2, pVEGF-R2 and pSHP1 was examined in the presence or absence of inhibitors of NADPH oxidase.
1278 23437353 ROS generation and NOX2 expression were also measured in mice retinas. 12- and 15- HETE significantly increased permeability and reduced TER and ZO-1 expression in REC.
1279 23437353 Treatment of diabetic mice with baicalein significantly decreased retinal HETE, ICAM-1, VCAM-1, IL-6, ROS generation, and NOX2 expression.
1280 23437353 Our findings suggest that 12/15-LOX contributes to vascular hyperpermeability during DR via NADPH oxidase dependent mechanism which involves suppression of protein tyrosine phosphatase and activation of VEGF-R2 signal pathway.
1281 23443495 We only observed a marginal beneficial on-top effect of T+A therapy over the single drug regimen that was most evident in the improvement of endothelial function (acetylcholine response) and less pronounced in the reduction of whole blood, vascular and cardiac oxidative stress (blood leukocyte oxidative burst, aortic dihydroethidine and 3-nitrotyrosine staining, as well as cardiac NADPH oxidase activity and uncoupling of endothelial nitric oxide synthase) in diabetic rats.
1282 23443495 These effects on oxidative stress parameters were paralleled by those on the expression pattern of NADPH oxidase and nitric oxide synthase isoforms.
1283 23443495 We only observed a marginal beneficial on-top effect of T+A therapy over the single drug regimen that was most evident in the improvement of endothelial function (acetylcholine response) and less pronounced in the reduction of whole blood, vascular and cardiac oxidative stress (blood leukocyte oxidative burst, aortic dihydroethidine and 3-nitrotyrosine staining, as well as cardiac NADPH oxidase activity and uncoupling of endothelial nitric oxide synthase) in diabetic rats.
1284 23443495 These effects on oxidative stress parameters were paralleled by those on the expression pattern of NADPH oxidase and nitric oxide synthase isoforms.
1285 23454064 After 4 weeks of hyperglycemia, the mice were allocated to coenzyme Q10 supplementation (10mg/kg/day), treatment with the angiotensin-converting-enzyme inhibitor (ACE-I) ramipril (3mg/kg/day), treatment with olive oil vehicle, or no treatment for 8 weeks.
1286 23454064 Type 1 diabetes upregulated LV NADPH oxidase (Nox2, p22(phox), p47(phox) and superoxide production), LV uncoupling protein UCP3 expression, and both LV and systemic oxidative stress (LV 3-nitrotyrosine and plasma lipid peroxidation).
1287 23454064 Coenzyme Q10 substantially limited type 1 diabetes-induced impairments in LV diastolic function (E:A ratio and deceleration time by echocardiography, LV end-diastolic pressure, and LV -dP/dt by micromanometry), LV remodeling (cardiomyocyte hypertrophy, cardiac fibrosis, apoptosis), and LV expression of proinflammatory mediators (tumor necrosis factor-α, with a similar trend for interleukin IL-1β).
1288 23457509 In the mean time, the ROS production, collagen IV and fibronectin expressions were increased.
1289 23457509 Diphenylene-chloride iodonium (DPI), a NADPH oxidase inhibtor, prevented HG-induced increases in ROS as well as collagen IV and fibronectin expressions.
1290 23457509 In the renal cortex of diabetic rats, the expression of XBP1S was reduced while p47phox, collagen IV and fibronectin expression were elevated.
1291 23458195 Aortic damage was observed through decreased endothelial nitric oxide synthase and increased NADPH oxidase mRNA expressions in CVD-induced rats.
1292 23458195 KA treatment reduced the pro-inflammatory cytokines tumor necrosis factor-α and interleukin 6 in CVD-induced rats.
1293 23524287 To investigate the sources of ROS upon insulin stimulation, apocynin and VAS2870 as NADPH oxidase inhibitors and rotenone as mitochondrial inhibitor were applied in combination with insulin, all of them leading to a reduction of the genomic damage.
1294 23557706 High glucose (HG) induces apoptosis of podocytes, inhibits AMP-activated protein kinase (AMPK) activation, inactivates tuberin, and activates mTOR.
1295 23557706 HG also increases the levels of Nox4 and Nox1 and NADPH oxidase activity.
1296 23557706 Inhibition of mTOR by low-dose rapamycin decreases HG-induced Nox4 and Nox1, NADPH oxidase activity, and podocyte apoptosis.
1297 23557706 Inhibition of mTOR had no effect on AMPK or tuberin phosphorylation, indicating that mTOR is downstream of these signaling molecules.
1298 23557706 In isolated glomeruli of OVE26 mice, there is a similar decrease in the activation of AMPK and tuberin and activation of mTOR with increase in Nox4 and NADPH oxidase activity.
1299 23557706 Our data provide evidence for a novel function of mTOR in Nox4-derived reactive oxygen species generation and podocyte apoptosis that contributes to urinary albumin excretion in type 1 diabetes.
1300 23557706 High glucose (HG) induces apoptosis of podocytes, inhibits AMP-activated protein kinase (AMPK) activation, inactivates tuberin, and activates mTOR.
1301 23557706 HG also increases the levels of Nox4 and Nox1 and NADPH oxidase activity.
1302 23557706 Inhibition of mTOR by low-dose rapamycin decreases HG-induced Nox4 and Nox1, NADPH oxidase activity, and podocyte apoptosis.
1303 23557706 Inhibition of mTOR had no effect on AMPK or tuberin phosphorylation, indicating that mTOR is downstream of these signaling molecules.
1304 23557706 In isolated glomeruli of OVE26 mice, there is a similar decrease in the activation of AMPK and tuberin and activation of mTOR with increase in Nox4 and NADPH oxidase activity.
1305 23557706 Our data provide evidence for a novel function of mTOR in Nox4-derived reactive oxygen species generation and podocyte apoptosis that contributes to urinary albumin excretion in type 1 diabetes.
1306 23557706 High glucose (HG) induces apoptosis of podocytes, inhibits AMP-activated protein kinase (AMPK) activation, inactivates tuberin, and activates mTOR.
1307 23557706 HG also increases the levels of Nox4 and Nox1 and NADPH oxidase activity.
1308 23557706 Inhibition of mTOR by low-dose rapamycin decreases HG-induced Nox4 and Nox1, NADPH oxidase activity, and podocyte apoptosis.
1309 23557706 Inhibition of mTOR had no effect on AMPK or tuberin phosphorylation, indicating that mTOR is downstream of these signaling molecules.
1310 23557706 In isolated glomeruli of OVE26 mice, there is a similar decrease in the activation of AMPK and tuberin and activation of mTOR with increase in Nox4 and NADPH oxidase activity.
1311 23557706 Our data provide evidence for a novel function of mTOR in Nox4-derived reactive oxygen species generation and podocyte apoptosis that contributes to urinary albumin excretion in type 1 diabetes.
1312 23595962 ALA supplementation increased the myocardial immunoreactivity of p47phox subunit of NADPH oxidase in both normal nondiabetic and diabetic rats reflecting its pro-oxidant effect.
1313 23633655 Roles for redox signaling by NADPH oxidase in hyperglycemia-induced heme oxygenase-1 expression in the diabetic retina.
1314 23678045 ADAM17 mediates Nox4 expression and NADPH oxidase activity in the kidney cortex of OVE26 mice.
1315 23678045 We investigated if the matrix metalloprotease a disintegrin and metalloprotease1 7 (ADAM17), known to cleave growth factors and cytokines, is activated in the kidney cortex of OVE26 type 1 diabetic mice and the potential mechanisms by which ADAM17 mediates extracellular matrix accumulation.
1316 23678045 Using a pharmacological inhibitor to ADAM17, TMI-005, we determined that ADAM17 activation results in increased type IV collagen, Nox4, and NADPH oxidase activity in the kidney cortex of diabetic mice.
1317 23678045 In cultured mouse proximal tubular epithelial cells (MCTs), high glucose increases ADAM17 activity, Nox4 and fibronectin expression, cellular collagen content, and NADPH oxidase activity.
1318 23678045 Additionally, our study is the first to provide evidence that Nox4 is downstream of ADAM17.
1319 23678045 ADAM17 mediates Nox4 expression and NADPH oxidase activity in the kidney cortex of OVE26 mice.
1320 23678045 We investigated if the matrix metalloprotease a disintegrin and metalloprotease1 7 (ADAM17), known to cleave growth factors and cytokines, is activated in the kidney cortex of OVE26 type 1 diabetic mice and the potential mechanisms by which ADAM17 mediates extracellular matrix accumulation.
1321 23678045 Using a pharmacological inhibitor to ADAM17, TMI-005, we determined that ADAM17 activation results in increased type IV collagen, Nox4, and NADPH oxidase activity in the kidney cortex of diabetic mice.
1322 23678045 In cultured mouse proximal tubular epithelial cells (MCTs), high glucose increases ADAM17 activity, Nox4 and fibronectin expression, cellular collagen content, and NADPH oxidase activity.
1323 23678045 Additionally, our study is the first to provide evidence that Nox4 is downstream of ADAM17.
1324 23678045 ADAM17 mediates Nox4 expression and NADPH oxidase activity in the kidney cortex of OVE26 mice.
1325 23678045 We investigated if the matrix metalloprotease a disintegrin and metalloprotease1 7 (ADAM17), known to cleave growth factors and cytokines, is activated in the kidney cortex of OVE26 type 1 diabetic mice and the potential mechanisms by which ADAM17 mediates extracellular matrix accumulation.
1326 23678045 Using a pharmacological inhibitor to ADAM17, TMI-005, we determined that ADAM17 activation results in increased type IV collagen, Nox4, and NADPH oxidase activity in the kidney cortex of diabetic mice.
1327 23678045 In cultured mouse proximal tubular epithelial cells (MCTs), high glucose increases ADAM17 activity, Nox4 and fibronectin expression, cellular collagen content, and NADPH oxidase activity.
1328 23678045 Additionally, our study is the first to provide evidence that Nox4 is downstream of ADAM17.
1329 23701472 Association of the -262C/T polymorphism in the catalase gene promoter and the C242T polymorphism of the NADPH oxidase P22phox gene with essential arterial hypertension in patients with diabetes mellitus type 2.
1330 23755196 The LOE treatment improved endothelium-dependent relaxations, abolished endothelium-dependent contractions to acetylcholine in the aorta, and normalized the increased vascular oxidative stress and expression of NADPH oxidase, cyclooxygenases, angiotensin II, angiotensin type 1 receptors and peroxynitrite and the decreased expression of endothelial NO synthase in db/db mice.
1331 23755196 LOE also inhibited the activity of purified ACE, COX-1 and COX-2 in a dose-dependent manner.
1332 23761786 We aim to describe the interaction between advanced glycation end products and their principle receptor RAGE, angiotensin II, and the Ang II type 1 receptor, in addition to reactive oxygen species (ROS) production by NADPH-oxidase enzymes that are relevant to vascular and immune cell function in the context of diabetic vasculopathy.
1333 23800882 Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes hepatic insulin clearance and endothelial survival.
1334 23800882 Mice lacking Ceacam1 (Cc1-/-) exhibit hyperinsulinemia, which causes insulin resistance and fatty liver.
1335 23800882 Basal aortic eNOS protein and NO content were reduced, in parallel with reduced Akt/eNOS and Akt/Foxo1 phosphorylation.
1336 23800882 Increased NADPH oxidase activity and plasma 8-isoprostane levels revealed oxidative stress and lipid peroxidation in Cc1-/- aortae. siRNA-mediated CEACAM1 knockdown in bovine aortic endothelial cells adversely affected insulin's stimulation of IRS-1/PI 3-kinase/Akt/eNOS activation by increasing IRS-1 binding to SHP2 phosphatase.
1337 23800882 Cc1-/- mice provide a first in vivo demonstration of distinct CEACAM1-dependent hepatic insulin clearance linking hepatic to macrovascular abnormalities.
1338 23801050 NOX1 abet mesangial fibrogenesis via iNOS induction in diabetes.
1339 23801050 Both NADPH oxidase (NOX) and inducible nitric oxide synthase (iNOS) are the main sources of reactive oxygen species in kidney.
1340 23801050 Protein expressions of NOX1, NOX2, NOX4, and iNOS were examined by immunoblotting.
1341 23801050 NOX was genetically silenced with specific RNAi to study the interactions between NOX and iNOS in diabetic milieu.
1342 23801050 Superoxide, peroxynitrite, TGF-β, and fibronectin productions as well as the protein expressions of NOX1, NOX2, NOX4, and iNOS were increased in the diabetic milieu (high glucose 30 mmol/L plus AGE 200 mg/L).
1343 23801050 Moreover, NOX1 inhibition not only prevented iNOS induction but also abrogated changes consequent to iNOS induction such as mesangial fibrogenesis.
1344 23804455 Overproduction of superoxide by the NADPH oxidase isoform Nox4 plays an important role in podocyte injury.
1345 23804455 Exposure of podocytes to high glucose (HG) increased 60% the intracellular superoxide production, 90% the NADPH oxidase activity, 100% the Nox4 expression, and 150% the number of apoptotic cells, effects that were completely blocked by 10 μM silybin.
1346 23804455 Overproduction of superoxide by the NADPH oxidase isoform Nox4 plays an important role in podocyte injury.
1347 23804455 Exposure of podocytes to high glucose (HG) increased 60% the intracellular superoxide production, 90% the NADPH oxidase activity, 100% the Nox4 expression, and 150% the number of apoptotic cells, effects that were completely blocked by 10 μM silybin.
1348 23848484 The expressions of endothelial nitric oxide synthase (eNOS), phosphorylated eNOS (p-eNOS) (Ser-1177), neuronal nitric oxide synthase (nNOS), NADPH oxidase subunit gp91(phox) , Rho A, and Rho kinase in corpus cavernosum were semi-quantitatively assessed by immunohistochemistry.
1349 23848484 Furthermore, eNOS, p-eNOS, and nNOS expressions decreased significantly in diabetic rats compared to controls, while gp91(phox) , RhoA and Rho kinase expressions increased significantly.
1350 23872397 Of note, the major intracellular sources including mitochondria, endoplasmic reticulum (ER), peroxisomes and the NADPH oxidase (NOX) complex have been identified in cell membranes to produce ROS.
1351 23874545 COX-2-derived prostanoids and oxidative stress additionally reduce endothelium-mediated relaxation in old type 2 diabetic rats.
1352 23874545 Consequently, we investigated the role of superoxide and COX-2-derivatives on endothelium-dependent relaxation in 3 and 12 month-old Zucker diabetic fatty (ZDF) and lean (LZ) rats.
1353 23874545 Superoxide level and NADPH-oxidase subunits (p67phox and gp91phox) expression level were greater in ZDF than in LZ rats and were further increased by aging in ZDF rats.
1354 23919599 Sex-specific associations of variants in regulatory regions of NADPH oxidase-2 (CYBB) and glutathione peroxidase 4 (GPX4) genes with kidney disease in type 1 diabetes.
1355 23919599 The superoxide-generating nicotinamide adenine dinucleotide phosphate-oxidase 2 (NOX2, encoded by the CYBB gene) and the antioxidant enzyme glutathione peroxidase 4 (GPX4) play opposing roles in the balance of cellular redox status.
1356 23919599 In the present study, we investigated associations of single nucleotide polymorphisms (SNPs) in the regulatory regions of CYBB and GPX4 with kidney disease in patients with type 1 diabetes.
1357 23919599 Two functional SNPs, rs6610650 (CYBB promoter region, chromosome X) and rs713041 (GPX4 3'untranslated region, chromosome 19), were genotyped in 451 patients with type 1 diabetes from a Brazilian cohort (diabetic nephropathy: 44.6%) and in 945 French/Belgian patients with type 1 diabetes from Genesis and GENEDIAB cohorts (diabetic nephropathy: 62.3%).
1358 23919599 In conclusion, these heterogeneous results suggest that neither CYBB nor GPX4 are major genetic determinants of diabetic nephropathy, but nevertheless, they could modulate in a gender-specific manner the risk for renal disease in patients with type 1 diabetes.
1359 23928875 We first demonstrated high-glucose-induced HMGB1 translocation from nucleus to cytosol, and this translocation was induced through a NADPH oxidase and PKC-dependent pathway.
1360 23928875 We next found high glucose also increased TLR2, TLR4, and RAGE expression.
1361 23928875 Then, we revealed downregulating HMGB1 expression abolished high-glucose-induced calcification accompanied by NFκB inactivation and low expression of bone morphogenetic protein-2 (BMP-2).
1362 23928875 Our findings thus suggest HMGB1 plays an important role in mediating the calcification process induced by high glucose through NFκB activation and BMP-2 expression in VSMC of saphenous vein.
1363 23940092 Relaxation to levcromakalim (ATP-sensitive potassium channel KATP opener, 10(-9)-10(-5) mol/l) and (+/-)-naringenin (large conductance calcium-activated channel BKCa opener, 10(-8)-10(-3) mol/l) were recorded in phenylephrine (1 µmol/l) pre-contracted segments in the absence and presence of superoxide dismutase (SOD, 100 µmol/l) and apocynin (an antioxidant and inhibitor of NADPH oxidase, 100 µmol/l).
1364 23955437 Moreover, AGE-BSA increased NADPH oxidase activity and protein expression of NADPH oxidase subunits, p22phox and Nox4, but anti-RAGE antibodies eliminated these effects.
1365 23957015 The role of adrenomedullin in the renal NADPH oxidase and (pro)renin in diabetic mice.
1366 23957015 To clarify the role of adrenomedullin in diabetic nephropathy, we investigated the NADPH oxidase expression, renin-secreting granular cell (GC) hyperplasia, and glomerular matrix expansion in the streptozotocin (STZ)-induced diabetic adrenomedullin gene knockout (AMKO) mice compared with the STZ-diabetic wild mice at 10 weeks.
1367 23957015 The NADPH oxidase p47phox expression and lipid peroxidation products were enhanced in the glomeruli of the diabetic mice compared with that observed in the controls in both wild and AMKO mice.
1368 23957015 The endogenous adrenomedullin gene exhibits an antioxidant action via the inhibition of NADPH oxidase probably by suppressing the local renin-angiotensin system.
1369 23957015 The role of adrenomedullin in the renal NADPH oxidase and (pro)renin in diabetic mice.
1370 23957015 To clarify the role of adrenomedullin in diabetic nephropathy, we investigated the NADPH oxidase expression, renin-secreting granular cell (GC) hyperplasia, and glomerular matrix expansion in the streptozotocin (STZ)-induced diabetic adrenomedullin gene knockout (AMKO) mice compared with the STZ-diabetic wild mice at 10 weeks.
1371 23957015 The NADPH oxidase p47phox expression and lipid peroxidation products were enhanced in the glomeruli of the diabetic mice compared with that observed in the controls in both wild and AMKO mice.
1372 23957015 The endogenous adrenomedullin gene exhibits an antioxidant action via the inhibition of NADPH oxidase probably by suppressing the local renin-angiotensin system.
1373 23957015 The role of adrenomedullin in the renal NADPH oxidase and (pro)renin in diabetic mice.
1374 23957015 To clarify the role of adrenomedullin in diabetic nephropathy, we investigated the NADPH oxidase expression, renin-secreting granular cell (GC) hyperplasia, and glomerular matrix expansion in the streptozotocin (STZ)-induced diabetic adrenomedullin gene knockout (AMKO) mice compared with the STZ-diabetic wild mice at 10 weeks.
1375 23957015 The NADPH oxidase p47phox expression and lipid peroxidation products were enhanced in the glomeruli of the diabetic mice compared with that observed in the controls in both wild and AMKO mice.
1376 23957015 The endogenous adrenomedullin gene exhibits an antioxidant action via the inhibition of NADPH oxidase probably by suppressing the local renin-angiotensin system.
1377 23957015 The role of adrenomedullin in the renal NADPH oxidase and (pro)renin in diabetic mice.
1378 23957015 To clarify the role of adrenomedullin in diabetic nephropathy, we investigated the NADPH oxidase expression, renin-secreting granular cell (GC) hyperplasia, and glomerular matrix expansion in the streptozotocin (STZ)-induced diabetic adrenomedullin gene knockout (AMKO) mice compared with the STZ-diabetic wild mice at 10 weeks.
1379 23957015 The NADPH oxidase p47phox expression and lipid peroxidation products were enhanced in the glomeruli of the diabetic mice compared with that observed in the controls in both wild and AMKO mice.
1380 23957015 The endogenous adrenomedullin gene exhibits an antioxidant action via the inhibition of NADPH oxidase probably by suppressing the local renin-angiotensin system.
1381 23994772 Importantly, blockade of NADPH oxidase using apocynin diminished the induction of high Ang II stress markers in isolated cardiomyocytes and in the mouse heart.
1382 23994772 These effects were associated with inhibition of NADPH oxidase-mediated AKT/mTOR/S6K and ERK signaling pathways.
1383 23994772 Importantly, blockade of NADPH oxidase using apocynin diminished the induction of high Ang II stress markers in isolated cardiomyocytes and in the mouse heart.
1384 23994772 These effects were associated with inhibition of NADPH oxidase-mediated AKT/mTOR/S6K and ERK signaling pathways.
1385 17504946 ROS production was completely prevented by uncoupling of the electron transport chain and by removal of glucose as an energy substrate, whereas it was unaffected by inhibition of NADPH-oxidase and xanthine-oxidase.