乌司他丁对糖尿病大鼠局灶性脑缺血的脑保护作用
李晓昶;杨改清;刘举;吴孟娇;胥丽霞;
摘要(Abstract)：
目的探讨乌司他丁对糖尿病大鼠脑缺血再灌注损伤的保护作用。方法 (1)应用高剂量腹腔注射链脲佐菌素(STZ)制作实验型2型糖尿病大鼠模型。(2)非糖尿病大鼠(n=30)和糖尿病大鼠(n=60)均制作大脑中动脉脑缺血模型。制模后局部大脑中动脉缺血30min后,再给予乌司他丁及24h再灌注。其中30只糖尿病大鼠在MCAO成功30min后,立即给予乌司他丁(100mg/kg,腹腔)。PCR检测凋亡诱导因子(AIF)评估细胞凋亡,免疫组化方法检测细胞色素C。结果乌司他丁治疗后糖尿病大鼠的凋亡相关蛋白和细胞色素C较无药物治疗的明显减低(P<0.05)。糖尿病合并MCAO大鼠的凋亡相关蛋白和细胞色素C较单纯的MCAO大鼠明显增加(P<0.05)。结论乌司他丁可能通过减少凋亡诱导因子、细胞色素C而改善糖尿病大鼠的脑缺血再灌注损伤。
关键词(KeyWords)： 乌司他丁;糖尿病大鼠;脑缺血再灌注;细胞色素C凋亡相关蛋白
基金项目(Foundation):
作者(Authors): 李晓昶;杨改清;刘举;吴孟娇;胥丽霞;
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