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PMID |
Sentence |
1 |
416984
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The quantity of insular amyloid correlated significantly with glucose clearance in intravenous glucose tolerance tests and with serum glucose, triglycerides, immunoreactive insulin, and prebetallipoprotein measured after an overnight fast.
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2 |
3979691
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These results do not support the suggestion that continuous subcutaneous insulin infusion stimulates serum amyloid A production or that it carries a risk of inducing reactive systemic amyloidosis.
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3 |
2659052
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In the eight years that have elapsed since the first implantation of an insulin pump in a human subject, insulin delivered by implantable pump has been shown to improve metabolic control while reducing total and LDL cholesterol, serum amyloid A, and serum anti-insulin antibody titres.
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4 |
2668761
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Although increased production of IAPP may initially cause insulin resistance, prolonged overproduction of IAPP may ultimately impair insulin secretion by leading to the progressive deposition of insoluble islet amyloid, a finding apparent in most subjects with overt diabetes.
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5 |
2612759
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When pancreatic mRNA was analysed, a 16-fold elevation in islet amyloid polypeptide mRNA was observed with only a four-fold increase in insulin mRNA levels.
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6 |
1970540
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We determined islet amyloid polypeptide (IAPP) response in plasma to oral and intravenous glucose administration and intravenous insulin injection in nondiabetic subjects.
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7 |
2198187
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Islet amyloid in diabetic Pima Indians may indicate a primary Beta-cell defect which interacts with insulin resistance to produce diabetes, or may develop as a result of Beta-cell dysfunction induced by insulin resistance and hyperglycaemia.
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8 |
2028355
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Other circulating hormones, such as the newly characterised islet amyloid polypeptide (amylin), may also cause insulin resistance.
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9 |
2065848
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This study suggests that basal hypo-secretion of islet amyloid polypeptide relative to insulin exists in non-obese Type 2 diabetes and that circulating islet amyloid polypeptide may act physiologically with insulin to modulate the glucose metabolism.
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10 |
18411183
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Islet amyloid polypeptide (IAPP or amylin), first identified as the peptide deposited as amyloid in type-2 diabetic pancreas and insulinoma, turns out to be a peptide produced in the pancreatic beta-cell secretory granule that is costored and coreleased with insulin.
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11 |
1563587
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To study whether abnormal secretion of islet amyloid polypeptide is involved in the development of insulin resistance and impaired insulin secretion in Type 2 (non-insulin-dependent) diabetes mellitus, we measured islet amyloid polypeptide concentrations in 56 first-degree relatives of Type 2 diabetic subjects and in 10 healthy control subjects.
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12 |
1563587
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It is however, unlikely that islet amyloid polypeptide is involved in the development of insulin resistance as insulin-resistant relatives with normal glucose-tolerance showed normal islet amyloid polypeptide concentrations.
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13 |
1637089
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Islet amyloid polypeptide, or amylin, is co-localized with insulin to the beta-cell secretory granule and is synthesized and released in parallel with insulin in response to a range of physiological and pharmacological stimuli.
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14 |
1641390
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Islet amyloid polypeptide (IAPP) has been recently identified as the principal constituent of amyloid deposits in pancreatic islets of patients with type 2 (non-insulin-dependent) diabetes mellitus and causes insulin resistance in some target cells.
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15 |
8477877
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Pancreatic tissue from 14 patients, 7 with Type 2 diabetes and 7 non-diabetic, were obtained at autopsy or surgery and studied for islet amyloid polypeptide expression by in situ hybridization and for presence of insulin and islet amyloid polypeptide by immunohistochemistry.
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16 |
8335181
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These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
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17 |
8307253
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Pharmacological doses of islet amyloid polypeptide have been shown to inhibit insulin secretion as well as insulin action on peripheral tissues (insulin resistance).
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18 |
8307253
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To examine the role of islet amyloid polypeptide in the pathogenesis of Type 2 diabetes, we have generated transgenic mice with the gene encoding either human islet amyloid polypeptide (which can form amyloid) or rat islet amyloid polypeptide, under control of an insulin promoter.
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19 |
8307253
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This suggests that insulin resistance is not induced by chronic hypersecretion of islet amyloid polypeptide.
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20 |
7472513
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Islet amyloid polypeptide (IAPP) or amylin is a hormone candidate predominantly expressed in insulin cells.
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21 |
10525663
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The proportion of fibrillar amyloid (amyloid area/islet area%) correlated with the amount of insulin (r = 0.55, p < 0.05) and IAPP (r = 0.5, p < 0.05) in the culture media.
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22 |
14613923
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This increase in life span in hIAPPxRIP-Tag was positively correlated with body weight (r = 0.48, P < 0.05) and was associated with decreased insulin sensitivity compared with RIP-Tag mice. hIAPPxRIP-Tag mice did not develop amyloid during their 4-mo life span, suggesting that increased hIAPP secretion is insufficient for islet amyloid formation within such a short time.
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23 |
15975085
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Why diabetes would increase the likelihood of Alzheimer's disease is not immediately clear, although recent studies have demonstrated an impact of insulin abnormalities, insulin resistance and advanced glycation end products on both the development of neural amyloid plaques and neurofibrillary tangles.
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24 |
15850385
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Deletion of insulin-degrading enzyme (IDE) in mice causes accumulation of cerebral amyloid beta-protein (Abeta), hyperinsulinemia, and glucose intolerance.
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25 |
16425966
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Moreover, it has been confirmed that high proinsulin concentrations stimulate amylin secretion by pancreatic beta-cells and amyloid accumulation within pancreatic islets leading to impairment of pancreatic islets secretory function.
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26 |
16968152
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These nestin-positive cell-derived ICCs expressed numerous beta-cell lineage genes, including insulin; Glut-2; pancreatic duodenal homebox-1 protein (PDX-1); islet amyloid polypeptide (IAPP); neurogenin 3 (ngn3); and alpha, gamma, and delta cell gene markers.
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27 |
19148619
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After 48 h, amyloid deposition was associated with increased ROS levels and increased beta cell apoptosis, but no change in insulin secretion, content or mRNA levels.
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28 |
19148619
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Inhibition of amyloid formation also increased insulin content.
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29 |
19383476
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Insulin is a 51-residue polypeptide hormone, with its two polypeptide chains linked by one intrachain and two interchain disulfide bonds, and has long been known to self-assemble in vitro into amyloid fibrils.
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30 |
19672057
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We recently demonstrated that adipocyte amyloid precursor protein (APP) expression is upregulated in obesity and correlates with insulin resistance and adipose tissue inflammation.
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31 |
19146426
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Islet amyloid polypeptide (IAPP), a 37-amino acid polypeptide hormone of the calcitonin family, is colocalized and cosecreted with insulin in secretory granules of pancreatic islet beta cells.
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32 |
19146426
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Its interactions with insulin in the secretory granules might influence the formation of cytotoxic oligomers and amyloid fibrils.
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33 |
19945428
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To study the changes in secondary, tertiary, quaternary structures, and the alteration in the collective vibrational mode density of states during the amyloid fibrillation, bovine insulin in 20% acetic acid was incubated at 60 degrees C, and its multi-level structures were followed by various biophysical techniques, including circular dichroism (CD), thioflavin T fluorescence (ThT), dynamic light scattering (DLS), electron microscopy, and terahertz (THz) absorption spectroscopy.
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34 |
18370645
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Our own most recent data show that a low dose infusion of insulin in patients with acute myocardial infarction induces a reduction in inflammation (C-reactive protein and serum amyloid A) and oxidative stress, and promotes fibrinolysis.
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35 |
18370776
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Low Hsps make organs vulnerable to injury, impair the stress response, accelerate systemic inflammation, raise islet amyloid polypeptide, and increase insulin resistance.
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36 |
20684641
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Insulin, coexpressed and cosecreted with hIAPP in vivo, has the capacity of interacting with hIAPP and further inhibiting the amyloid deposition of the peptide.
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37 |
21163363
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Misfolded human islet amyloid polypeptide (hIAPP) in pancreatic islets is associated with the loss of insulin-secreting beta cells in type 2 diabetes.
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38 |
21448434
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Insulin-degrading enzyme (IDE) is a thiol sensitive peptidase that degrades insulin and amyloid ?, and has been linked to type 2 diabetes mellitus and Alzheimer's disease.
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39 |
19456151
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Islet amyloid polypeptide (IAPP or amylin) is a 37-residue peptide hormone associated with glucose metabolism that is cosecreted with insulin by beta-cells in the pancreas.
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40 |
21411544
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Insulin infusion also caused significant parallel reductions in nuclear factor-?B binding activity and plasma concentrations of serum amyloid A and intercellular adhesion molecule-1.
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41 |
9637677
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These mice develop diabetes with age, and we show that IPF1/PDX1 is required for maintaining the beta cell identity by positively regulating insulin and islet amyloid polypeptide expression and by repressing glucagon expression.
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42 |
21616080
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The formation of hIAPP amyloid plaques near islet cells has been linked to the death of insulin-secreting ?-cells in humans and the progression of type II diabetes.
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43 |
21298325
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It was found that insulin significantly reduced IL-6-induced gene transcription of serum amyloid 1 (SAA1), serum amyloid 2 (SAA2), haptoglobin, orosomucoid, and plasmin activator inhibitor-1 (PAI-1).
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44 |
21819598
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We propose that higher dynamics in glycated insulin could prevent the formation of the rigid cross-? core structure found in amyloid fibrils, thereby contributing to the reduction in the ability to form fibrils and to the population of different aggregation pathways like the formation of native-like aggregates.
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