期刊
CURRENT DIABETES REPORTS
卷 8, 期 3, 页码 173-178出版社
CURRENT MEDICINE GROUP
DOI: 10.1007/s11892-008-0030-1
关键词
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资金
- Bristol-Myers Squibb
- Amylin
- Eli Lilly Co.
- Novartis
- Pfizer
- Takeda
Insulin resistance is a characteristic feature of type 2 diabetes mellitus, obesity, and the metabolic syndrome. Increased intracellular fat content in skeletal muscle and liver associated with insulin resistance has led to the hypothesis that a mitochondrial defect in substrate oxidation exists in disorders of insulin resistance. In vivo measurements of metabolic fluxes through the tricarboxylic acid and oxidative phosphorylation with magnetic resonance spectroscopy have demonstrated multiple defects in mitochondrial function in skeletal muscle. A decrease in mitochondrial density and mitochondrial copy number has been reported in have not been a consistent observation in all studies. Similarly, an intrinsic functional defect in mitochondrial adenosine triphosphate production synthesis has been reported in some but not all studies. This review summarizes evidence that implicates a defect in mitochondrial oxidative phosphorylation and its relationship to insulin resistance in common metabolic diseases characterized by impaired insulin action.
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