低氧预处理大鼠缺血再灌注脑组织缺氧诱导因子-1α的表达

被引:4
作者
段东晓
张桂红
邢莹
高晓群
茹立强
机构
[1] 郑州大学医学院生理学教研室
[2] 华中科技大学同济医学院神经生物学系
关键词
低氧预处理; 脑缺血; 缺氧诱导因子-1α;
D O I
10.13705/j.issn.1671-6825.2004.06.017
中图分类号
R363 [病理生理学];
学科分类号
摘要
目的 :探讨低氧预处理对脑缺血再灌注组织缺氧诱导因子 - 1α表达的影响。方法 :SD大鼠 80只随机分为 3组 ,即假手术组 10只 ,缺血再灌注组 35只 ,低氧预处理组 35只。低氧预处理组连续吸入V(O2 ) :V(N2 ) =8:923h作低氧预处理 ,12h后再经插线左大脑中动脉栓塞 (MCAO)作缺血再灌注模型 ,缺血再灌注组不行低氧预处理 ,在大鼠大脑中动脉缺血 3h再灌注后 2h ,6h ,12h ,2 4h ,4 8hTTC法测定脑梗死体积 ,同时采用免疫组织化学方法观察低氧预处理对缺血再灌注大鼠脑组织缺氧诱导因子 - 1α蛋白表达的影响。结果 :与缺血再灌组相比 ,低氧预处理组大鼠的脑梗死体积明显降低 ,缺氧诱导因子 - 1α蛋白的表达增加 ,差异有统计学意义 (P <0 .0 5 )。结论 :低氧预处理对脑缺血再灌注有明显的保护作用 ,缺氧诱导因子 - 1α表达增加可能是其机制之一
引用
收藏
页码:974 / 976
页数:3
相关论文
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