Diazoxide attenuates insulin secretion and hepatic lipogenesis in zucker diabeticfatty rats.

摘要

Background: Attenuation of hyperinsulinemia by diazoxide (DZ), an inhibitorof glucose-mediated insulin secretion, in Zucker diabetic fatty (ZDF) rats, an animal model of type 2diabetes and leptin resistance, decreased weight gain, improved lipid profile and prevented diabetes.Since the opposing effects of insulin and leptin regulate hepatic lipogenesis, we studied effects ofinsulin suppression on key insulin-sensitive genes regulating hepatic lipogenesis. Material/Methods:DZ (150 mg/kg/day) or vehicle [pair-fed (PF) and control (C)] was administered to pre-diabetic obeseZDF and ZDF lean (ZL) rats for 8 weeks. Results: Hepatic glucose transporter-2 protein expression decreasedonly in DZ-ZDF rats (p