凋亡相关基因Bcl-2、Bcl-xl和Bax mRNA在大鼠缺血预处理脑组织中的表达

被引:9
作者
王锷
郭曲练
谭秀娟
蔡宏伟
鄢建勤
卓缨
李小艳
曹亚
机构
[1] 湖南医科大学附属湘雅医院麻醉科
关键词
脑缺血预处理; 脱噬作用; 遗传学; 其因表达调控;
D O I
暂无
中图分类号
R363 [病理生理学];
学科分类号
摘要
目的 检测脑缺血预处理大鼠脑组织中凋亡调控基因Bcl 2、Bcl xl和Bax的表达。方法 假手术对照组、预处理对照组、预处理缺血组和缺血组Wistar大鼠分别再灌 2 4h ,48h和 72h ,采用半定量逆转录聚合酶链反应 (RT PCR)和原位分子杂交 (ISH)方法对脑组织Bcl 2、Bcl xl和BaxmRNA的表达进行检测。结果 半定量RT PCR显示 :与假手术对照组相比 ,预处理对照组大鼠再灌 2 4h、48h和预处理缺血组大鼠再灌 2 4h脑组织Bcl 2mRNA的表达增高 ;预处理对照组和预处理缺血组大鼠再灌 2 4h脑组织Bcl xlmRNA的表达增高 (P <0 0 5 )。而四组大鼠BaxmRNA的表达无显著性差异 (P >0 0 5 )。ISH方法显示与假手术对照组及缺血组相比 ,预处理对照组和预处理缺血组大鼠再灌 2 4h脑组织Bcl 2、Bcl xlmRNA的表达增高 (P <0 0 5 ) ,各组大鼠BaxmRNA的表达无显著性差异 (P >0 0 5 )。结论 脑缺血预处理后Bcl 2、Bcl xlmRNA的表达增高 ,可能是脑缺血预处理内源性抗损伤的机制之一。
引用
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页码:27 / 29
页数:3
相关论文
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