局灶脑缺血再灌流后ICAM-1表达与白细胞浸润

被引:14
作者
吴珊
董为伟
董佑忠
机构
[1] 贵阳医学院附属医院神经科!贵州贵阳
[2] 重庆医科大学神经病学研究所!重庆
关键词
脑缺血; 再灌流; 白细胞; 细胞间粘附分子-1;
D O I
暂无
中图分类号
R743 [脑血管疾病];
学科分类号
1002 ;
摘要
目的 探讨大鼠局灶性脑缺血再灌流后细胞间粘附分子 - 1(ICAM- 1)表达规律与白细胞浸润。方法 采用大鼠 MCA线栓闭塞 /再通法建立局灶性缺血 /再灌流模型 ,动态观察 ICAM- 1、髓过氧化物酶 (MPO)变化情况。结果  (1)鼠脑缺血 /再灌流后 MCA供血区皮质及梗死周边区的微血管 ICAM- 1表达于再灌流 6 h已增强 ,36~ 48h达高峰 ,以后逐渐减弱 ,但第 7天表达仍强于假手术组。(2 )坏死周边区神经元也表达 ICAM- 1。(3)再灌流 6 h出现白细胞浸润 ,浸润高峰在 2 4~ 36 h,6 d后恢复正常。结论  (1)缺血再灌流使微血管表达 ICAM- 1上调 ,同时也伴随坏死周边区的神经元表达 ICAM- 1。 (2 )白细胞浸润与 ICAM- 1表达规律同步。
引用
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页码:6 / 8
页数:3
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