黄芪注射液对脑缺血再灌注后血脑屏障的保护作用及ZO-1蛋白表达的影响Effects of Astragus Injection on Blood-brain Barrier and Expression of ZO-1 Protein After Cerebral Ischemia and Reperfusion
曲友直,李敏,高国栋
摘要(Abstract):
目的探讨黄芪注射液对大鼠脑缺血再灌注后血脑屏障的保护作用及ZO-1蛋白表达的影响。方法采用线栓法制备大鼠局灶性脑缺血再灌注模型。将SD大鼠随机等分为假手术组、生理盐水对照组、黄芪注射液治疗组。采用分光光度计法及免疫组化法分别检测大鼠脑组织伊文氏蓝含量及ZO-1蛋白的表达。结果与假手术组相比,生理盐水对照组大鼠脑组织伊文氏蓝含量明显增多,ZO-1蛋白的表达明显减少;与生理盐水对照组相比,黄芪注射液组大鼠脑组织伊文氏蓝含量显著减少,ZO-1蛋白的表达显著增加。结论黄芪注射液对脑缺血再灌注后血脑屏障具有保护作用,可能与黄芪注射液上调ZO-1蛋白的表达有关。
关键词(KeyWords): 黄芪注射液;脑缺血再灌注;血脑屏障;ZO-1
基金项目(Foundation): 国家自然科学基金课题(30600841)
作者(Author): 曲友直,李敏,高国栋
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