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Current Medicinal Chemistry


ISSN (Print): 0929-8673
ISSN (Online): 1875-533X

AMP-Activated Protein Kinase and Type 2 Diabetes

Author(s): Nicolas Musi

Volume 13 , Issue 5 , 2006

Page: [583 - 589] Pages: 7

DOI: 10.2174/092986706776055724

Price: $65


AMP-activated protein kinase (AMPK) is an enzyme that works as a fuel gauge, being activated in situations of high-energy phosphate depletion. Upon activation, AMPK functions to restore cellular ATP by modifying diverse metabolic pathways. AMPK is activated robustly by skeletal muscle contraction and myocardial ischemia, and may be involved in the stimulation of glucose transport and fatty acid oxidation produced by these stimuli. In liver, activation of AMPK results in enhanced fatty acid oxidation and in decreased production of glucose, cholesterol, and triglycerides. Recent studies have shown that AMPK is the cellular mediator for many of the metabolic effects of drugs such as metformin and thiazolidinediones, as well as the insulin sensitizing adipocytokines leptin and adiponectin. These data, along with evidence from studies showing that chemical activation of AMPK in vivo with 5-aminoimidazole-4-carboxamide ribonucleoside (AICAR) improves blood glucose concentrations and lipid profiles, make this enzyme an attractive pharmacological target for the treatment of type 2 diabetes and other metabolic disorders.

Keywords: AMPK, ACC, exercise, glucose transport, type 2 diabetes mellitus

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