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AMP-Activated Protein Kinase and Type 2 Diabetes

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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: ACC; AMPK; exercise; glucose transport; type 2 diabetes mellitus

Document Type: Research Article


Affiliations: Texas Diabetes Institute, 701 S. Zarzamora, MS 10-5, 3rd Floor, San Antonio, TX 78207, USA.

Publication date: March 1, 2006

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  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.

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