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PMID |
Sentence |
1 |
373769
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It is suggested that rates of oxidation of lipid fuels may be a major determinant of the activity of pyruvate dehydrogenase in tissues in relation to the actions of insulin and lipolytic hormones and the effects of diabetes and starvation.
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2 |
7021386
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Both in starved and unstarved groups of normal mice, pyruvate dehydrogenase complex activity increased equally by insulin administration.
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3 |
6367775
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The effect of insulin and ATP on pyruvate dehydrogenase activity has been studied in a mixture of plasma membranes/mitochondria from normal and diabetic rat brain.
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4 |
3880552
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The effects of putative insulin mediators on the pyruvate dehydrogenase (PDH) activity of intact mitochondria isolated from rat liver were investigated.
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5 |
3050367
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Pyruvate dehydrogenase (PDH) activity of NZO mouse adipocytes was totally unresponsive to insulin in contrast to the impaired but still significant insulin stimulation of glucose transport and utilization, suggesting a postreceptor defect at the level of insulin stimulation of this enzyme.
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6 |
3050367
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This study demonstrates in adipocytes of NZO mice: (1) a receptor defect and (2) a postreceptor defect of insulin action at the level of pyruvate dehydrogenase activation.
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7 |
2173562
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Impairment in insulin-stimulated breakdown of the molecule in adipocytes of streptozotocin-diabetic rats was found, consistent with the impaired insulin activation of pyruvate dehydrogenase and glucose utilization seen in this model.
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8 |
1858869
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In conclusion, glucose oxidation is reduced at physiological insulin concentrations in NIDDM and cannot be explained by concomitant obesity, increased fat oxidation, or reduced glucose uptake but results from impaired sensitivity to stimulation by insulin, possibly at pyruvate dehydrogenase.
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9 |
1592161
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Studies have shown that in circulating lymphocytes pyruvate dehydrogenase (PDH) is responsive to insulin. 2.
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10 |
7628391
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We investigated the role of islet pyruvate dehydrogenase (PDH) enzyme activity and fatty acid oxidation in the impaired insulin secretion in spontaneously diabetic GK rats.
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11 |
11906472
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In particular, I(to) density is significantly increased in diabetic rat isolated ventricular myocytes treated in vitro with insulin or agents that activate pyruvate dehydrogenase.
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12 |
12099888
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In insulin deficiency, increased lipid delivery and oxidation suppress skeletal-muscle glucose oxidation by inhibiting pyruvate dehydrogenase complex (PDC) activity via enhanced protein expression of pyruvate dehydrogenase kinase (PDK) isoform 4, which phosphorylates (and inactivates) PDC.
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13 |
14519091
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Protein tyrosine phosphatase 1B inhibitors that relieve the negative control on insulin action and are active in cell assays, dipeptidyl peptidase IV inhibitors that raise postprandial glucagon-like peptide 1 levels in animals and humans, and pyruvate dehydrogenase kinase inhibitors that increase the levels of pyruvate dehydrogenase, which in turn improve insulin sensitivity, were all discussed.
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14 |
15127202
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The effects of insulin on gene expression were markedly altered in the muscle of Type 2 diabetic patients except for adiponectin receptor-1 and pyruvate dehydrogenase 4 mRNAs.
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15 |
16873695
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We previously showed that insulin has a profound effect to suppress pyruvate dehydrogenase kinase (PDK) 4 expression in rat skeletal muscle.
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