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PMID |
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1 |
2404746
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When islets were cultured for 18 h only, also 5000 pg/ml IL-6 stimulated the medium insulin accumulation.
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2404746
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IL-6 did not affect the islet insulin content and the rates of islet (pro)insulin and total protein biosynthesis.
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3 |
2404746
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In short-term experiments after 48-h culture with IL-6, there was a dose-dependent inhibition of the glucose-stimulated insulin release.
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4 |
2129751
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We conclude that human IL-6 stimulates insulin production and secretion in vitro and induces similar ultrastructural changes in beta-cells as does IL-1 beta.
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5 |
1303676
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In vitro studies have shown that they prevent the lymphocyte co-stimulatory activities of the cytokines IL-1 and IL-6 in a manner similar to that of cyclosporin A, and prevent the inhibitory effect of IL-1 on glucose-induced insulin production.
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6 |
8030746
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Interleukin-6 (IL-6) is thought to be involved in the pathogenesis of autoimmune insulin-dependent diabetes mellitus.
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7 |
11287357
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Thus the local expression of TNF and plasma IL-6 are higher in subjects with obesity-related insulin resistance.
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8 |
11342531
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Cytokines, such as tumor necrosis factor-alpha, interleukin-1 beta, and interleukin-6, and hormones, such as growth hormone, are known to cause insulin resistance, but the mechanisms by which they inhibit the cellular response to insulin have not been elucidated.
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9 |
11928538
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Some gene polymorphisms of TNF-alpha and IL-6 (associated with a different TNF-alpha or IL-6 transcription rate) and the plasma concentrations of the soluble TNF-alpha receptor are found to be simultaneously associated with resistance to insulin, the proportion of body fat and with the mortality linked with different chronic infections.
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10 |
12560330
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We recently demonstrated that IL-6 inhibits insulin signaling in hepatocytes (Senn, J.
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11 |
12560330
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Since several SOCS proteins are induced by IL-6, a working hypothesis is that IL-6-dependent insulin resistance is mediated, at least in part, by induction of SOCS protein(s) in insulin target cells.
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12 |
12692007
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In multivariable logistic regression, the fully adjusted odds ratio (OR) for elevated fasting insulin (>or=51.6 pmol/L) increased with tertile of BMI, CRP, and IL-6, such that the ORs in the highest versus lowest tertile of each parameter were 9.0 (95% confidence interval [CI], 4.4 to 18.7), 4.4 (95% CI, 1.9 to 10.1), and 2.0 (95% CI, 0.9 to 4.2), respectively.
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13 |
12829649
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After additional adjustment for BMI, waist-to-hip ratio, and fasting glucose and insulin, only the interleukin-6 association remained statistically significant (HR = 1.6, 1.01-2.7).
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14 |
12952969
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This effect of IL-6 was accompanied by a marked reduction in IRS-1, but not IRS-2, protein expression, and insulin-stimulated tyrosine phosphorylation, whereas no inhibitory effect was seen on the insulin receptor tyrosine phosphorylation.
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15 |
12952969
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Consistent with the reduced GLUT-4 mRNA, insulin-stimulated glucose transport was also significantly reduced by IL-6.
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16 |
15149950
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IL-6 and TNF-alpha have been associated with insulin resistance and type 2 diabetes.
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17 |
15149950
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Furthermore, in the presence of insulin, IL-6 reduced the esterification of FA to triacylglycerol by 22% (P < 0.05).
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18 |
15149950
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In conclusion, the results demonstrate that IL-6 plays an important role in regulating fat metabolism in muscle, increasing rates of FA oxidation, and attenuating insulin's lipogenic effects.
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19 |
15562250
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Among the nondiabetic women, fasting insulin (r = 0.69, P < 0.01), 2-h insulin (r = 0.56, P < 0.05), and HOMA index (r = 0.59, P < 0.05) correlated positively with TNF-alpha gene expression; fasting insulin (r = 0.54, P < 0.05) was positively related to, and 2-h insulin (r = 0.49, P = 0.06) tended to be positively related to, IL-6 gene expression; and glucose area (r = -0.56, P < 0.05) was negatively related to, and insulin area (r = -0.49, P = 0.06) tended to be negatively related to, adiponectin gene expression.
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20 |
16093575
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Troglitazone improved insulin sensitivity (mean increase in whole body glucose uptake 23.1 +/- 10.5% (p = 0.047)) and normalised plasma concentrations of hsCRP, tPA and TNF-alpha, whereas it did not significantly change IL-6, leptin and PAI-1.
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21 |
16518702
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High levels of IL-6 are associated with hyperglycaemia, dyslipidemia and provoke insulin resistance.
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22 |
16362280
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IL6 expression increased significantly more in response to insulin in the insulin-resistant than in the insulin-sensitive group.
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23 |
16549931
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Human conditions of elevated interleukin-6 (IL-6) and transgenic mice overexpressing IL-6 have increased proteolytic degradation of insulin-like growth factor binding protein (IGFBP)-3.
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24 |
17003332
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Although interleukin-6 (IL-6) has been associated with insulin resistance, little is known regarding the effects of IL-6 on insulin sensitivity in humans in vivo.
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25 |
17003332
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Because skeletal muscle accounts for most of the insulin-stimulated glucose disposal in vivo, we examined the mechanism(s) by which IL-6 may affect muscle metabolism using L6 myotubes.
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26 |
17003332
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IL-6 treatment increased fatty acid oxidation, basal and insulin-stimulated glucose uptake, and translocation of GLUT4 to the plasma membrane.
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27 |
17322479
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By contrast, the positive association between IL-6 and diabetes appeared to be independent of obesity and insulin resistance.
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28 |
17347312
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Our results suggest that decreased plasma adiponectin, increased plasma resistin and cholesterol, and elevated levels of TNF-alpha and IL-6 in adipocytes may all contribute to the insulin resistance observed in GH-Tg mice.
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29 |
17719095
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Adipose tissue macrophages (ATMs) are suspected to be the major source of inflammatory mediators such as TNF-alpha and IL-6 that interfere with adipocyte function by inhibiting insulin action.
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30 |
17956334
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IL-6 treatment of myotubes increases fatty acid oxidation, basal and insulin-stimulated glucose uptake and translocation of GLUT4 to the plasma membrane.
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31 |
18296638
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MKP-4 also reversed the effect of TNF-alpha to inhibit insulin signaling; alter IL-6, Glut1 and Glut4 expression; and inhibit insulin-stimulated glucose uptake in 3T3-L1 adipocytes.
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32 |
18796617
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Finally, the lack of PTP1B confers protection against IL-6-induced insulin resistance in skeletal muscle in vitro and in vivo, in agreement with the protection against the IL-6 hyperglycemic effect observed on glucose and insulin tolerance tests in adult male mice.
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33 |
19188427
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The cytokine interleukin-6 (IL-6) stimulates AMP-activated protein kinase (AMPK) and insulin signaling in skeletal muscle, both of which result in the activation of endothelial nitric oxide synthase (eNOS).
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34 |
19188427
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IL-6 blunted increases in insulin signaling, eNOS phosphorylation (Ser1177), and NO production and reduced phosphorylation of AMPK in HAEC in vitro and capillary recruitment in vivo.
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35 |
19188427
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In the presence of insulin, IL-6 contributes to aberrant endothelial cell signaling because of increased TNF-alpha expression.
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36 |
19299644
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Proinflammatory cytokines including tumor necrosis factor-alpha and interleukin-6 secreted by adipose tissue during the metabolic syndrome are proposed to cause local and general insulin resistance and promote development of type 2 diabetes.
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37 |
19076162
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Fosinopril significantly reduced the degree of hepatic steatosis, serum FG, insulin, ALT, TNF-alpha and IL-6 concentrations and hepatic TNF-alpha and IL-6 mRNA expression.
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38 |
19685554
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In the whole cohort and in women, univariate correlations between IL-6 concentrations and the parameters under evaluation showed that IL-6 and leptin were positively correlated with age, BMI, waist, systolic blood pressure (SBP), diastolic blood pressure (DBP), fasting glucose, fasting insulin, Delta AUC insulin area, triglyceride (TG), free fatty acids (FFA) and monocyte chemoattractant protein-1 (MCP-1) and inversely correlated with HDL cholesterol (HDL-C) and adiponectin.
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39 |
19685554
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In women a forward stepwise linear regression analysis in a model including age, BMI, features of metabolic syndrome, fasting insulin, Delta AUC insulin and insulin sensitivity index (ISI) index revealed that only IL-6 and leptin were independently associated with fasting insulin levels.
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40 |
19506327
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This improved glycemic control, reduced daily insulin requirement, decreased IL-6 and hs-CRP levels rapidly and increased adiponectin level at 10 days after initiation of therapy.
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41 |
19675137
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The obELV-mediated induction of TNF-alpha and IL-6 in macrophages and insulin resistance requires the TLR4/TRIF pathway.
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42 |
19940327
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Adipose tissue produces multiple cytokines(TNF-alpha, IL-6, PAI-1, CRP, angiotensinogen, leptin, adiponectin, visfatin, apelin, resistin)which decrease insulin sensitivity and induce inflammatory processes, endothelial dysfunction,and atherosclerosis.
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43 |
19966184
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The binding of thrombin to its receptor stimulates inflammatory cytokines including IL-6 and monocyte chemoattractant protein-1 (MCP-1); both are associated with the development of insulin resistance.
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44 |
20233149
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When compared with NW, Ob displayed elevated F(2)-IsoP (99 ± 7 vs. 75 ± 4 pg/mL, p<0.005), IL-6 (2.2 ± 0.2 vs. 1.5 ± 0.3 pg/mL, p<0.005), elevated total leukocytes and neutrophils, altered levels of total cholesterol , low- and high-density-lipoprotein cholesterol, triglycerides, free fatty acids, glucose, and insulin (all p<0.005).
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45 |
20699433
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Insulin did not affect TNF-?, MCP-1, IL-6, LBP, resistin, and HMG-B1 increases induced by the LPS.
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46 |
20942575
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The present clinical trial examined the influence of a supplement, containing a combination of antioxidants extracted from fruit, berries and vegetables, on levels of plasma antioxidants (tocopherols, carotenoids and ascorbate), glycaemic control (blood glucose, HbA1c, insulin), oxidative stress biomarkers (F(2)-isoprostane, malondialdehyd, nitrotyrosine, 8-oxo-7, 8-dihydro-2'-deoxyguanosine, formamidopyrimidine glycosylase sites, frequency of micronucleated erythrocytes) and inflammatory markers (interleukin-6, C-reactive protein, prostaglandin F(2?)-metabolite) in type 2 diabetes.
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47 |
21063111
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The data presented show that insulin regulates MAPK, PI3K, PKC and NF-?B pathways, the expression of the inducible enzymes iNOS and COX-2, and the levels of NO, PGE(2) and IL-6 in the early phase of allergic lung inflammation in diabetic rats.
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48 |
21054880
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Monocytes incubated with insulin and palmitate together produced more IL-6 mRNA and protein, and more TNF-? protein, compared to monocytes incubated with palmitate alone.
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49 |
21054880
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Incubation of monocytes with insulin alone did not affect the production of IL-6 or TNF-?.
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50 |
21179199
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Inhibition of IL-6 signalling improves insulin sensitivity in humans with immunological disease suggesting that elevated IL-6 levels in type 2 diabetic subjects might be causally involved in the pathogenesis of insulin resistance.
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51 |
21270264
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In addition, using both MIN-6 cells, a murine ?-cell line, and pancreatic islets isolated from mice, we analyzed the in vitro effects of IL-6 pretreatment on insulin secretion.
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52 |
21270264
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Furthermore, using pharmacological inhibitors and small interfering RNAs, we studied the intracellular signaling pathway through which IL-6 may affect insulin secretion from MIN-6 cells.
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53 |
21031343
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Vaspin, adiponectin and interleukin-6 (IL-6) constitute novel adipose-tissue derivatives, known as adipokines, which mediate insulin resistance.
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54 |
21448349
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Administration of YQZMT induced dose- and time-dependent changes in insulin resistance, glucose and lipid profile, and reduced levels of FFA, TNF-? and IL-6 in the type 2 diabetic rats.
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55 |
21327868
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Circulating SAA and SAP did not decrease in either insulin-treated group, but IL-6 levels fell in the glargine-treated mice.
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56 |
21321840
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This prospective study indicates that change in amount body fat and levels of inflammatory cytokines, such as IL-6, contribute to change in insulin resistance over time in type 1 diabetes patients with and without diabetic nephropathy.
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57 |
20354158
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In both hypothalamic cell lines, inflammation was induced by prototypical inflammatory mediators LPS and TNFalpha, as judged by induction of IkappaBalpha (3- to 5-fold) and IL-6 (3- to 7-fold) mRNA and p-IkappaBalpha protein, and TNFalpha pretreatment reduced insulin-mediated p-Akt activation by 30% (P < 0.05).
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58 |
21478228
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Furthermore, we observed that insulin treatment did not reduce diabetes-increased macrophage content but inhibited interleukin 6 expression, a stimulator for MMP expression.
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59 |
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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60 |
21298325
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However, the authors did not find any evidence that insulin inhibited IL-6 signal transduction, i.e., no effect of insulin was detected on STAT3 phosphorylation or its translocation to cell nucleus.
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61 |
20484139
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Insulin-induced phosphatidylinositol 3-kinase (PI3K)/Akt signaling and interleukin-6 (IL-6)-instigated JAK/STAT3-signaling pathways in the liver inhibit the expression of gluconeogenic genes to decrease hepatic glucose output.
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62 |
21756351
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We conducted a cross-sectional study in 6,720 subjects from the Twins UK Registry to evaluate the association between 18 single nucleotide polymorphisms (SNPs) in five genes (TLR4, IL1A, IL6, TNFA, and CRP) along the innate immunity-related inflammatory pathway and biomarkers of predisposition to T2DM [fasting insulin and glucose, HDL- and LDL- cholesterols, triglycerides (TGs), amyloid-A, sensitive C-reactive protein (sCRP) and vitamin D binding protein (VDBP) and body mass index (BMI)].
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63 |
21756351
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Fasting insulin was associated with SNPs in IL6 and TNFA, serum HDL-C with variants of TNFA and CRP and serum sCRP level with SNPs in CRP.
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64 |
21811961
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In morbid obesity: (1) Subcutaneous adipose tissue releases interleukin-6 which could then mediate insulin resistance in skeletal muscle. (2) Although there is increased secretion of leptin by the subcutaneous adipose tissue, leptin levels are not correlated to the sensitivity of glucose metabolism to insulin in muscle.
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65 |
15685173
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Insulin resistance was improved by systemic neutralization of IL-6 or salicylate inhibition of IKK-beta.
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66 |
22037645
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Here we show that administration of IL-6 or elevated IL-6 concentrations in response to exercise stimulate GLP-1 secretion from intestinal L cells and pancreatic alpha cells, improving insulin secretion and glycemia.
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67 |
22037645
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Hence, IL-6 mediates crosstalk between insulin-sensitive tissues, intestinal L cells and pancreatic islets to adapt to changes in insulin demand.
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68 |
22037645
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This previously unidentified endocrine loop implicates IL-6 in the regulation of insulin secretion and suggests that drugs modulating this loop may be useful in type 2 diabetes.
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69 |
21295959
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In both subcutaneous and visceral preadipocytes, lactoferrin (1 and 10 ?M) increased adipogenic gene expressions and protein levels (fatty acid synthase, PPAR?, FABP4, ADIPOQ, ACC and STAMP2) and decreased inflammatory markers (IL8, IL6 and MCP1) dose-dependently in parallel to increased insulin-induced (Ser473)AKT phosphorylation.
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