电针内关穴预处理对心肌缺血再灌注损伤大鼠线粒体膜电位、腺苷A1受体的影响

Journal of Emergency in Traditional Chinese Medicine(2017)

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Abstract
目的 观察电针内关预处理对心肌缺血再灌注损伤(myocardial ischemic reperfusion injury,MIRI)大鼠心肌线粒体膜电位、腺苷A1受体的影响,探讨电针预处理防治MIRI的可能作用机制.方法 40只SD雄性大鼠随机分为假手术、缺血再灌注组(模型组)、电针内关穴组、电针环跳穴组,每组10只.采用冠脉结扎法造模,电针内关组和电针环跳穴组在造模前,给予电针刺激20 min/d,共7 d.采用荧光技术测定心肌细胞线粒体膜电位变化,免疫组化法测腺苷A1受体的表达.结果模型组线粒体膜电位及腺苷A1受体较假手术组明显下降(P<0.01);电针内关穴组线粒体膜电位较模型组、电针环跳穴组及假手术组明显升高(P<0.05);电针内关组腺苷A1受体较模型组、电针环跳穴组和假手术组明显升高(P<0.01);模型组与电针环跳组间无明显差异(P>0.05).结论 电针内关穴预处理可以诱导腺苷A1受体的表达,升高线粒体膜电位,对心肌细胞产生保护作用.
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Key words
MIRI,eletroacupuncture,Neiguan point,mitochondrial membrane potential,adenosine A1 receptor
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