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自由基清除剂对大鼠脊髓损伤后NMDAR1表达的影响

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摘要 目的:观察自由基清除剂对大鼠急性脊髓损伤后NMDAR1表达的影响,探讨自由基清除剂对大鼠脊髓损伤的保护及促神经功能恢复的作用。方法:采用改良Allen法制作SD大鼠脊髓中度损伤模型,将模型鼠随机分为实验组和对照组各24只。实验组按3mg/kg的剂量将自由基清除剂依达拉奉用0.9%氯化钠溶液稀释后,每隔12h腹腔注射1次,给药时间为30min,共14d。对照组采用同样方式给予0.9%氯化钠溶液。观察脊髓组织的病理改变及用免疫组化方法测定1天、3天、7天和14天不同时间点大鼠脊髓内离子型受体N-甲基-D-天冬氨酸受体(N-Methyl-D-aspartate receptors,NMDAR)表达的变化。结果:与外伤对照组比较,依达拉奉治疗组MMDAR1免疫阳性细胞数在1d时较低(P<0.05),3d、7d。
作者 周全 罗黎明
出处 《中国民族民间医药》 2009年第12期41-42,共2页 Chinese Journal of Ethnomedicine and Ethnopharmacy
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