alexa Insulin signal transduction in human skeletal muscle: identifying the defects in Type II diabetes.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Diabetes & Metabolism

Author(s): Bjrnholm M, Zierath JR

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Abstract Type II diabetes is characterized by defects in insulin action on peripheral tissues, such as skeletal muscle, adipose tissue and liver and pancreatic beta-cell defects. Since the skeletal muscle accounts for approx. 75\% of whole body insulin-stimulated glucose uptake, defects in this tissue play a major role in the impaired glucose homoeostasis in Type II diabetic patients. Thus identifying defective steps in this process may reveal attractive targets for drug development to combat insulin resistance and Type II diabetes. This review will describe the effects of insulin on glucose transport and other metabolic events in skeletal muscle that are mediated by intracellular signalling cascades. Evidence for impaired activation of the insulin receptor signalling cascade and defective glucose transporter 4 translocation in the skeletal muscle from Type II diabetic patients will be presented. Through the identification of the intracellular defects in insulin action that control glucose homoeostasis, a better understanding of the disease pathogenesis can be gained and strategies for intervention may be developed. This article was published in Biochem Soc Trans and referenced in Journal of Diabetes & Metabolism

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