熊果酸对胰岛素抵抗大鼠糖代谢及肝脏葡萄糖激酶的影响

Journal of Yunnan University of Traditional Chinese Medicine(2011)

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Abstract
目的:观察熊果酸对大鼠胰岛素抵抗糖代谢的改善及可能作用机制。方法:采用高脂饲料喂养的方法诱导胰岛素抵抗模型。检测大鼠空腹血糖、空腹胰岛素、口服葡萄糖耐量、肝脏葡萄糖激酶含量,葡萄糖激酶mRNA表达水平,葡萄糖激酶蛋白表达。计算胰岛素抵抗指数和胰岛素敏感指数。结果:熊果酸300mg/(kg.d)组和熊果酸150mg/(kg.d)组空腹胰岛素和胰岛素抵抗指数降低,胰岛素敏感指数升高,葡萄糖耐量明显改善,肝脏葡萄糖激酶含量、mRNA及蛋白表达增加。结论:熊果酸对大鼠胰岛素抵抗的改善可能与肝脏葡萄糖激酶表达升高有关。
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Key words
glucokinase,ursolic acid,liver,insulin resistance
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