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-  2019 

参附对失血性休克大鼠肺组织的保护作用 Protective effect of Shenfu pretreatment against lung injury in hemorrhagic shock rats

Keywords: 参附,预处理,肺损伤,休克,大鼠

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Abstract:

目的:研究参附预处理是否对失血性休克大鼠的肺组织起保护作用。方法:雄性SD大鼠随机分为4组(n=10):对照组,失血性休克(HS)组,2 mL/kg参附(SF1)组,4 mL/kg参附(SF2)组。盐水或参附在在休克前30 min通过尾静脉注入大鼠体内。除对照组外,其它3组经10 min股动脉缓慢放血使大鼠平均动脉压达(40±5) mmHg诱发失血性休克,通过放血或输血维持大鼠休克状态60 min。在复苏后4 h,测定大鼠肺组织丙二醛(MDA)、超氧化物歧化酶(SOD)、Bcl-2、Bax和Caspase-3的含量。并测量支气管肺泡灌洗液(BAL)中的蛋白质和细胞含量以及观察肺组织病理学变化。结果:与HS组比较,SF2组MDA、Bax及Caspase-3水平降低;而SOD活性和Bcl-2增高。与此相应的是SF2组BAL中蛋白质和细胞的含量显著降低及肺组织病理学评分降低。结论:大剂量参附预处理对缺血再灌注大鼠肺损伤具有保护作用。涉及的潜在机制是改善肺组织的抗氧化作用

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