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罗格列酮对2型糖尿病合并非酒精性脂肪肝病大鼠肝脏保护作用的研究 被引量:2

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摘要 目的:探讨罗格列酮对2型糖尿病(T2DM)合并非酒精性脂肪肝病(NAFLD)大鼠的肝脏保护作用及可能机制。方法:将48只8周龄雄性健康远交系大鼠随机分为3组,每组16只。对照组大鼠以普通饲料喂养,模型组及治疗组大鼠均以高脂饲料喂养,于第8周末腹腔内注射链脲佐菌素制作糖尿病大鼠模型,成功后2组继续以高脂饲料喂养,在此基础上治疗组予罗格列酮3mg/(kg.d)灌胃。于第17周、21周末分批处死动物,检测其血糖、肝功能、血脂和胰岛素等指标,光镜下观察大鼠肝脏组织学形态,RT-PCR法检测肝组织解偶联蛋白(UCP)2mRNA的表达情况。结果:与对照组比较,17周及21周模型组大鼠的血糖、胰岛素、ALT、AST、三酰甘油、总胆固醇、LDL-C、游离脂肪酸均明显升高(P均<0.01),光镜下肝组织呈重度脂肪变性,且肝组织UCP2mRNA表达水平明显升高(P<0.01)。与模型组比较,17周及21周治疗组大鼠血糖、ALT、AST、三酰甘油、总胆固醇及游离脂肪酸均有改善(P<0.05或0.01),光镜下肝组织呈轻度脂肪变性,肝组织UCP2mRNA表达水平明显下降(P<0.01)。结论:罗格列酮作用于T2DM合并NAFLD大鼠,不仅可降低血糖、血脂水平,还可改善肝功能、减轻肝脏的脂肪变性,而罗格列酮降低T2DM合并NAFLD大鼠肝脏UCP2的表达,可能是作用机制之一。
出处 《新医学》 2010年第3期174-176,F0003,共4页 Journal of New Medicine
基金 广东省医学科研基金项目(A2004469)
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参考文献7

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二级参考文献21

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