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α-硫辛酸对糖尿病大鼠糖外周组织内UCP2 mRNA表达的影响及意义 被引量:1

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摘要 目的探讨α-硫辛酸对糖尿病大鼠血脂、血糖、FINS及骨骼肌、脂肪组织内UCP2 mRNA的影响及意义。方法 30只Wistar大鼠随机分为正常对照(NC)组、糖尿病对照(DC)组、α-硫辛酸治疗(LA)组。应用链脲佐菌素(STZ)单次腹腔注射造模。NC组、DC组每只给予生理盐水2 ml/d,LA组60 mg.kg-1.d-1腹腔注射共4 w。测定各组的体重、血糖、糖化血红蛋白(HbA1c)、血脂,并检测脂肪及骨骼肌组织内UCP2 mRNA、丙二醛(MDA)、总抗氧化能力(T-AOC)的水平。结果 DC组甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白(LDL)、HbA1c、胰岛素水平显著高于NC组,而高密度脂蛋白(HDL)水平显著下降,较NC组有显著性差异(P<0.05);LA组大鼠血浆TG、TC、LDL、HbA1c、胰岛素水平均较DC组显著下降,而HDL显著升高(P<0.05)。DC组脂肪及骨骼肌组织内MDA及UCP2表达水平显著高于NC组,而T-AOC水平显著降低,LA组大鼠组织内MDA水平及UCP2表达均较DC组显著下降,而T-AOC显著升高(P<0.05)。结论α-硫辛酸干预可明显减少其肝脏、脂肪骨骼肌组织内UCP2表达,改善糖尿病机体的"糖脂毒性",并进一步改善氧化应激状态,提高机体的抗氧化能力。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2012年第20期4451-4454,共4页 Chinese Journal of Gerontology
基金 济宁市科技局计划课题(济科字〔2008〕50号)
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