预防性应用阿托伐他汀对SD大鼠局部脑缺血再灌注脑组织Caspase-3表达的影响Impact of atorvastatin on expressions of Caspase-3 in the ischemic/reperfused cerebral tissues of rats
王旭刚,高政
摘要(Abstract):
目的探讨预防性应用阿托伐他汀对SD大鼠局灶性脑缺血再灌注损伤是否具有脑保护作用及其可能的机制。方法 72只雄性SD大鼠,按随机化原理分成3组:假手术组(n=24)、缺血再灌注组(简称对照组n=24)、阿托伐他汀组(n=24),各组按缺血2 h再灌注2 h6、h2、4 h3、6 h分为4个亚组,每组各6只。结果各相同再灌注时间点,阿托伐他汀组与对照组比较,缺血区变性、坏死的神经元数量减少,空泡样改变减轻,组织间水肿减轻。阿托伐他汀组较对照组Caspase-3阳性表达细胞数明显减少,再灌注2 h6、h,2组间比较差别有统计学意义(P<0.05),再灌注24 h及36 h 2组间比较差别有显著性统计学意义(P<0.01)。结论预防性应用阿托伐他汀能减轻SD大鼠局灶性脑缺血再灌注损伤,减轻神经细胞变性、坏死及组织水肿,使缺血周边区及海马区Caspase-3表达减少。
关键词(KeyWords): 脑缺血再灌注;阿托伐他汀;半胱氨酸蛋白酶-3
基金项目(Foundation):
作者(Author): 王旭刚,高政
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