Pharmacological Approach in the Treatment of Insulin Resistance

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Abstract
Insulin resistance syndromes are heterogeneous in either severity or mechanism. Many drugs have been shown to counteract various elements of insulin resistance. Some of them, by normalization of metabolic parameters, decrease insulin resistance induced by chronic hyperglycemia in diabetes. Insulin and, to some extent, sulfonylureas are in this group, but these drugs are not stricto sensu medication of insulin resistance. Some drugs sensitize peripheral tissues to the action of insulin. For instance, biguanides and thiazolidine-dione facilitate translocation to the membrane of glucose transporter in presence of insulin. Other compounds as vanadate or IGF-1 mimic some peripheral action of insulin. Finally, blockade of FFA oxidation by specific inhibitors (methylpalmoxyrate) can limit insulin resistance. In 1992, among these compounds, specific of insulin resistance, biguanides are mostly used. However, the efficacy of these drugs is moderate and limited to type 2 diabetes.

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