高压氧预处理减少局灶性脑缺血后泛素化蛋白聚集

被引:6
作者
陈晓梅
熊利泽
董海龙
张昊鹏
袁利邦
机构
[1] 第四军医大学西京医院麻醉科
关键词
重复预处理; 高压氧; 泛素化蛋白聚集; 局灶性脑缺血; 脑保护;
D O I
暂无
中图分类号
R741 [神经病学];
学科分类号
100204 [神经病学];
摘要
目的探讨泛素-蛋白酶体系统在重复高压氧(HBO)预处理导致的脑缺血耐受中所起的作用。方法采用大脑中动脉阻闭(MCAO)制备大鼠局灶性脑缺血模型,将33只SD大鼠随机分为假手术组(Sham)组、MCAO组和HBO组,分别观察各组大鼠脑梗死灶的大小和神经功能学评分,并用免疫组织化学染色检测再灌注2h、24h时相点大鼠脑组织CA1区异常泛素化蛋白聚集的变化。结果 HBO组脑梗死容积小于MCAO组,差异有统计学意义(P<0.05),其神经功能学评分也明显优于MCAO组(P<0.05)。再灌注各时相点,HBO组泛素化蛋白聚集明显少于MCAO组(P<0.05)。结论高压氧预处理所诱导的脑缺血耐受的机制可能与泛素化蛋白聚集降低有关。
引用
收藏
页码:441 / 444
页数:4
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