心复康口服液对实验心衰模型大鼠心肌细胞自由基代谢和膜通透性的影响

Effect of XinFuKang oral liquid on oxygen free radicals and membrane permeability of myocardiac cell in rat with experimental congestive heart failure

目的:探讨心复康口服液治疗心衰的作用机制。方法:本实验通过腹腔注射阿霉素复制大鼠实验心衰模型,以心肌组织中谷胱甘肽过氧化物酶(GSH-Px)活性、丙二醛(MDA)含量和细胞膜通透性为观察指标,研究中药心复康口服液对大鼠实验性心衰模型心肌细胞自由基代谢及膜通透性的影响。结果:阿霉素模型组GSHPx活性和MDA含量分别为5159±2721μminmg和066±0468nmolmgpr,与正常对照组比较P<001;心复康治疗组明显提高阿霉素损伤心肌组织GSHPx活性(64.77±5.112),降低MDA含量(0.326±0.241),与模型组比较有非常显著性差异(P<0.01),接近正常对照组值。心肌细胞膜通透性观察,阿霉素模型组心肌细胞的超微结构有严重损伤,硝酸镧标记可见镧颗粒进入细胞内,在细胞内有大量电子致密的镧颗粒,线粒体外膜周围亦有致密的镧颗粒沉积,坏死的肌原纤维之间亦有少量散在的镧颗粒沉积。心复康治疗组心肌细胞超微结构损伤较轻,细胞间隙和外膜可见镧沉积的电子致密颗粒,线粒体、肌丝之间有少量的镧颗粒沉积。结论:提示心复康口服液具有抗氧自由基作用和保护心肌细胞超微结构及膜通透性的作用。

Objective: To study mechanism of XinFuKang treitment conjestive heart failure.Method: We used a model of rat with expermertal conjestive heart failure and observed change of activity of GSH-Px and level of MDA and plasma membrane permeability in rat cardiac cell.Result: ADR can decreased activity of GSH-Px,promoted content of MDA and damaged the permeability properties of the plasma membrane.XinFuKang can increase activity of GHS-Px,decrease content of MDA and protect plasma membrane permeability in cardiac cell.Conclusion:XinFuKang oral liquid cound prohibit ORF and protect ultrastructure and plasma membrane permeability in cardiac cell.