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PMID |
Sentence |
1 |
9400384
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Experimental diabetes is associated with functional activation of protein kinase C epsilon and phosphorylation of troponin I in the heart, which are prevented by angiotensin II receptor blockade.
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2 |
9400384
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To explore a possible role for protein kinase C (PKC)-mediated phosphorylation of myofibrillar proteins in this process, we characterized the subcellular distribution of the major PKC isoforms seen in the adult heart in cardiocytes isolated from diabetic rats and determined patterns of phosphorylation of the major regulatory proteins, including troponin I (TnI).
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3 |
9400384
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The change in PKC epsilon distribution and in TnI phosphorylation in diabetic animals was completely prevented by rendering the animals euglycemic with insulin or by concomitant treatment with a specific angiotensin II type-1 receptor (AT1) antagonist.
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4 |
11738801
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PKC isoforms thought to be anti-apoptotic include the conventional PKC isoforms (cPKC-alpha, -beta I and -beta II), whereas the novel PKC isoforms nPKC-delta and nPKC-epsilon may be apoptotic.
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5 |
12941947
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Rapid association of protein kinase C-epsilon with insulin granules is essential for insulin exocytosis.
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6 |
12941947
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Glucose-dependent exocytosis of insulin requires activation of protein kinase C (PKC).
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7 |
12941947
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Using confocal microscopy, we have now established that in response to glucose, PKC-epsilon but not PKC-alpha associates with insulin granules and that green fluorescent protein-tagged PKC-epsilon changes its distribution within the cell periphery upon stimulation of beta-cells with glucose.
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8 |
17130651
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The molecular mechanism underlying defective insulin-stimulated glucose transport activity can be attributed to increases in intramyocellular lipid metabolites such as fatty acyl CoAs and diacylglycerol, which in turn activate a serine/threonine kinase cascade, thus leading to defects in insulin signaling through Ser/Thr phosphorylation of insulin receptor substrate (IRS)-1.
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9 |
17130651
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A similar mechanism is also observed in hepatic insulin resistance associated with nonalcoholic fatty liver, which is a common feature of type 2 diabetes, where increases in hepatocellular diacylglycerol content activate protein kinase C-epsilon, leading to reduced insulin-stimulated tyrosine phosphorylation of IRS-2.
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10 |
17526931
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Suppression of diacylglycerol acyltransferase-2 (DGAT2), but not DGAT1, with antisense oligonucleotides reverses diet-induced hepatic steatosis and insulin resistance.
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11 |
17526931
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Diacylglycerol acyltransferase (Dgat), of which there are two isoforms (Dgat1 and Dgat2), catalyzes the final step in triglyceride synthesis.
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12 |
17526931
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We evaluated the metabolic impact of pharmacological reduction of DGAT1 and -2 expression in liver and fat using antisense oligonucleotides (ASOs) in rats with diet-induced NAFLD.
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13 |
17526931
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Dgat1 and Dgat2 ASO treatment selectively reduced DGAT1 and DGAT2 mRNA levels in liver and fat, but only Dgat2 ASO treatment significantly reduced hepatic lipids (diacylglycerol and triglyceride but not long chain acyl CoAs) and improved hepatic insulin sensitivity.
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14 |
17526931
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Because Dgat catalyzes triglyceride synthesis from diacylglycerol, and because we have hypothesized that diacylglycerol accumulation triggers fat-induced hepatic insulin resistance through protein kinase C epsilon activation, we next sought to understand the paradoxical reduction in diacylglycerol in Dgat2 ASO-treated rats.
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15 |
17526931
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These changes were associated with reduced expression of lipogenic genes (SREBP1c, ACC1, SCD1, and mtGPAT) and increased expression of oxidative/thermogenic genes (CPT1 and UCP2).
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16 |
17526931
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Taken together, these data suggest that knocking down Dgat2 protects against fat-induced hepatic insulin resistance by paradoxically lowering hepatic diacylglycerol content and protein kinase C epsilon activation through decreased SREBP1c-mediated lipogenesis and increased hepatic fatty acid oxidation.
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17 |
17526931
|
Suppression of diacylglycerol acyltransferase-2 (DGAT2), but not DGAT1, with antisense oligonucleotides reverses diet-induced hepatic steatosis and insulin resistance.
|
18 |
17526931
|
Diacylglycerol acyltransferase (Dgat), of which there are two isoforms (Dgat1 and Dgat2), catalyzes the final step in triglyceride synthesis.
|
19 |
17526931
|
We evaluated the metabolic impact of pharmacological reduction of DGAT1 and -2 expression in liver and fat using antisense oligonucleotides (ASOs) in rats with diet-induced NAFLD.
|
20 |
17526931
|
Dgat1 and Dgat2 ASO treatment selectively reduced DGAT1 and DGAT2 mRNA levels in liver and fat, but only Dgat2 ASO treatment significantly reduced hepatic lipids (diacylglycerol and triglyceride but not long chain acyl CoAs) and improved hepatic insulin sensitivity.
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21 |
17526931
|
Because Dgat catalyzes triglyceride synthesis from diacylglycerol, and because we have hypothesized that diacylglycerol accumulation triggers fat-induced hepatic insulin resistance through protein kinase C epsilon activation, we next sought to understand the paradoxical reduction in diacylglycerol in Dgat2 ASO-treated rats.
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22 |
17526931
|
These changes were associated with reduced expression of lipogenic genes (SREBP1c, ACC1, SCD1, and mtGPAT) and increased expression of oxidative/thermogenic genes (CPT1 and UCP2).
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23 |
17526931
|
Taken together, these data suggest that knocking down Dgat2 protects against fat-induced hepatic insulin resistance by paradoxically lowering hepatic diacylglycerol content and protein kinase C epsilon activation through decreased SREBP1c-mediated lipogenesis and increased hepatic fatty acid oxidation.
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24 |
17906635
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Crucial role of a long-chain fatty acid elongase, Elovl6, in obesity-induced insulin resistance.
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25 |
17906635
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Mice deficient for Elovl6, the gene encoding the elongase that catalyzes the conversion of palmitate to stearate, were generated and shown to become obese and develop hepatosteatosis when fed a high-fat diet or mated to leptin-deficient ob/ob mice.
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26 |
17906635
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Amelioration of insulin resistance was associated with restoration of hepatic insulin receptor substrate-2 and suppression of hepatic protein kinase C epsilon activity resulting in restoration of Akt phosphorylation.
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27 |
19259639
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Elovl6: a new player in fatty acid metabolism and insulin sensitivity.
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28 |
19259639
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This review addresses the hypothesis that elongation of long-chain fatty acids family member 6 (Elovl6) has an important role in energy metabolism and insulin sensitivity.
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29 |
19259639
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Mice with targeted disruption in the gene for Elovl6 (Elovl6 (-/-)) are resistant to diet-induced insulin resistance despite their hepatosteatosis and obesity being similar to that of the wild-type mice.
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30 |
19259639
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Protection against diet-induced insulin resistance in Elovl6 (-/-) mice is partially due to restoration of hepatic insulin receptor substrate-2 and suppression of hepatic protein kinase C epsilon, resulting in restoration of Akt phosphorylation.
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31 |
19809797
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Diverse roles for protein kinase C delta and protein kinase C epsilon in the generation of high-fat-diet-induced glucose intolerance in mice: regulation of lipogenesis by protein kinase C delta.
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32 |
23671888
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To study the correlation between the methylation of protein kinase C epsilon zeta (PRKCZ) gene promoters and type 2 diabetes mellitus (T2DM).
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