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Ann Intern Med. 2002 Jul 2;137(1):25-33.

Metformin: an update.

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  • 1State University of New York Health Science Center at Brooklyn, 450 Clarkson Avenue, Box 1205, Brooklyn, New York 11203, USA.

Abstract

Metformin is an insulin-sensitizing agent with potent antihyperglycemic properties. Its efficacy in reducing hyperglycemia in type 2 diabetes mellitus is similar to that of sulfonylureas, thiazolidinediones, and insulin. Metformin-based combination therapy is often superior to therapy with a single hypoglycemic agent. The antihyperglycemic properties of metformin are mainly attributed to suppressed hepatic glucose production, especially hepatic gluconeogenesis, and increased peripheral tissue insulin sensitivity. Although the precise mechanism of hypoglycemic action of metformin remains unclear, it probably interrupts mitochondrial oxidative processes in the liver and corrects abnormalities of intracellular calcium metabolism in insulin-sensitive tissues (liver, skeletal muscle, and adipocytes) and cardiovascular tissue.

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PMID:
12093242
[PubMed - indexed for MEDLINE]
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