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白藜芦醇对老年大鼠心肌细胞线粒体细胞色素C氧化酶表达的影响 被引量:2

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摘要 目的探讨白藜芦醇对老年大鼠心肌细胞线粒体的抗氧化作用以及对呼吸链酶复合体Ⅳ(CoⅣ)活性和表达的影响。方法 SD大鼠30只随机分为青年组,老年组和用药组,用药组每日灌胃白藜芦醇70 mg/kg,共4 w,检测各组大鼠心肌线粒体丙二醛(MDA)的含量、超氧化物歧化酶(Mn-SOD)的活性、呼吸链酶CoⅣ活性及其mRNA表达的变化。结果白藜芦醇可提高心肌线粒体Mn-SOD的活性、降低MDA的含量,并且使呼吸链酶CoⅣ活性增加、CoⅣmRNA的表达降低。结论白藜芦醇能提高心肌线粒体抗氧化能力,改善线粒体能量代谢障碍,维护线粒体功能,为老年人心肌功能改善药物的开发奠定实验基础。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2012年第13期2771-2772,共2页 Chinese Journal of Gerontology
基金 黑龙江省教育厅一般科研项目(No.12521533)
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