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依达拉奉预处理对大鼠脑缺血再灌注后血管内皮功能的影响 被引量:7

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摘要 目的:观察依达拉奉用于大鼠脑缺血预处理对血管内皮的影响。方法:健康成年雄性SD大鼠36只随机平均分入假手术组(N/A组)、缺血再灌注损伤组(I/R组)和依达拉奉预处理组(EP组),采用线栓法制备大鼠大脑中动脉闭塞再通模型,EP组在建立模型前30min给予依达拉奉3mg/kg,N/A组和I/R组则给予生理盐水2mg/kg。分别于缺血前(T0)、缺血30min(T1)、缺血1h(T2)、缺血2h(T3)、再灌注30min(T4)、再灌注1h(T5)、再灌注6h(T6)及再灌注12h(T7)采血检测丙二醛(MDA)、一氧化氮(NO)、血浆可溶性血栓调节蛋白(sTM)浓度及血管性血友病因子(vWF)含量,T0和T7时点测循环内皮细胞(CEC)计数。结果:I/R组与EP组缺血后各检测指标均高于N/A组(P<0.05),与I/R组相比,EP组缺血后各时点MDA、NO、sTM浓度及vWF含量均显著降低(P<0.05),T7时点的CEC计数亦显著低于I/R组(P<0.05)。结论:依达拉奉预处理通过降低氧自由基水平能减轻大鼠脑缺血再灌注对血管内皮细胞的损伤,有明显的血管内皮保护作用。
出处 《实用医学杂志》 CAS 2008年第24期4205-4207,共3页 The Journal of Practical Medicine
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