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有氧运动联合白藜芦醇对Ⅱ型糖尿病大鼠心肌细胞凋亡因子TNF-α、Caspase-3的影响
  • 摘要

    为探讨有氧运动联合白藜芦醇对Ⅱ型糖尿病大鼠心肌细胞凋亡因子TNF-α、Caspase-3的影响。选用2月龄雄性SD大鼠40只,随机选取8只大鼠作为正常对照组(ZA),以标准饲料喂养;其余大鼠在高脂高糖喂养基础上,腹腔注射小剂量链脲佐菌素(STZ),建立Ⅱ型糖尿病大鼠动物模型。将Ⅱ型糖尿病模型大鼠随机分成4组:模型安静组(TA)、模型运动组(TY)、模型灌胃白藜芦醇安静组(TB)、模型灌胃白藜芦醇运动组(TYB)。运动训练采用每周6 d的无负重游泳。7周后,检测各组大鼠空腹血糖水平、血脂指标、心肌组织细胞形态学变化,心肌TNF-α、Caspase-3含量。结果发现:①OGTT后30、60、120 min时间段TY、TB、TYB组血糖浓度与TA组比较,均非常显著性降低(P<0.01);与TA组相比,TY、TB、TYB组血清TC、TG、LDL水平均显著性或非常显著性下降(P<0.05或P<0.01)。与ZA组相比,TA组心肌呈现病理性变化;与TA组相比, TY、TB、TYB组心肌病理性变化明显减轻。②与ZA组相比,TA组心肌组织TNF-α显著性升高(P<0.01);与 TA 组相比,TY、TB、TYB 组心肌组织 TNF-α非常显著性下降(P<0.05);与 TYB组相比较,TY、TB组心肌TNF-α的表达量显著性升高(P<0.05)。与ZA组相比,TA组心肌组织Caspase-3显著性升高(P<0.01);与TA组相比,TY、TB、TYB组心肌组织Caspase-3非常显著性下降(P<0.05);与TYB组相比,TY、TB组心肌Caspase-3蛋白表达水平显著性升高(P<0.05)。结果说明:Ⅱ型糖尿病大鼠心肌组织呈现病理性变化,有氧运动、白藜芦醇及联合干预可能通过降低糖尿病大鼠心肌组织TNF-α、Caspase-3含量,降低心肌细胞凋亡因子的表达,改善糖尿病大鼠心肌组织的病理性变化。有氧运动联合白藜芦醇干预降低心肌组织凋亡因子表达的效果优于单一的有氧运动或白藜芦醇干预。

  • 作者

    任建厂  王红丽  肖国强  REN Jian-chang  WANG Hong-li  XIAO Guo-qiang 

  • 作者单位

    华南师范大学 体育科学学院,广东 广州,510006

  • 刊期

    2014年6期 PKU CSSCI

  • 关键词

    运动医学  Ⅱ型糖尿病  有氧运动  白藜芦醇  心肌  肿瘤坏死因子-α  半胱氨酸天冬氨酸蛋白酶-3  sports medicine  type II diabetes  aerobic exercise  resveratrol  cardiac muscle  TNF-α  Caspase-3 

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