二氮嗪预处理对幼龄大鼠深低温脑缺血/再灌注损伤的影响

被引:7
作者
何晓敏 [1 ]
莫绪明 [1 ]
顾群 [1 ]
陈凤 [1 ]
彭卫 [1 ]
戚继荣 [1 ]
顾海涛 [1 ]
印克杰 [2 ]
机构
[1] 南京医科大学附属南京儿童医院心胸外科
[2] 美国华盛顿大学神经生物学研究所
关键词
二氮嗪; 深低温; 脑缺血/再灌注损伤; 细胞色素C;
D O I
10.19460/j.cnki.0253-3685.2008.03.016
中图分类号
R748 [儿童神经病];
学科分类号
100204 [神经病学];
摘要
目的探讨二氮嗪预处理对幼龄大鼠深低温脑缺血/再灌注损伤脑保护作用。方法将3周龄SD大鼠90只随机分为假手术组、模型组及二氮嗪组,缺血/再灌注后1、6、24、72h和7d,建立深低温脑缺血/再灌注模型,采用免疫组织化学检测不同时点脑组织细胞色素C的蛋白表达,并观察脑组织病理变化。结果与假手术组比较,模型组于再灌注后6和24h显示明显的病理变化,其脑组织胞浆细胞色素C于灌注后6h后即明显升高(P<0.05),24h达到高峰(P<0.01)。二氮嗪组病理改变较轻,细胞色素C含量于再灌注后24和72h显著低于模型组(P<0.05)。结论二氮嗪预处理可抑制线粒体细胞色素C的释放,对幼龄大鼠深低温脑缺血/再灌注损伤具有一定脑保护作用。
引用
收藏
页码:248 / 250+326 +326
页数:4
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