期刊导航

论文摘要

左乙拉西坦及辛伐他汀对癫痫持续状态大鼠脑保护作用的实验研究

Protective Effects of Levetiracetam and Simvastatin on Pilocarpine-induced Epilepsy in Rat Models

作者:李梦秋, 张文武, 陈涛等

Author:LI Meng-qiu, ZHANG Wen-wu, CHEN Tao. et al

收稿日期:          年卷(期)页码:2015,46(2):201-204

期刊名称:四川大学学报(医学版)

Journal Name:JOURNAL OF SICHUAN UNIVERSITY (MEDICAL SCIENCE EDITION)

关键字:癫痫持续状态海马左乙拉西坦辛伐他汀Calpain-1

Key words:Status epilepsyHippocampusSimvastatinLevetiracetamCalpain-1

基金项目:

中文摘要

目的 探讨左乙拉西坦、辛伐他汀单用或联用对癫痫持续状态(SE)模型大鼠的早期神经保护作用及其相关机制。方法 利用氯化锂-匹鲁卡品制作SE大鼠模型,将造模成功的大鼠分为4组,采用不同的处理方式(生理盐水即模型组、左乙拉西坦、辛伐他汀、左乙拉西坦+辛伐他汀),同时设空白对照组,将各组大鼠处死后取脑组织,采用免疫组化尼氏染色检测大鼠海马区神经元细胞形态及数量;Western blot检测大鼠海马区calpain-1蛋白表达。结果 免疫组化尼氏染色结果显示:与空白对照组相比,模型组大鼠海马区神经元变性,存活神经元细胞减少甚至消失,正常结构消失,表明SE后24 h,大鼠海马区神经元受到了严重损伤;与模型组比较,辛伐他汀组大鼠海马区神经元减少甚至消失,排列疏松紊乱,但差异无统计学意义,表明辛伐他汀不能改变海马神经元损伤;与模型组比较,左乙拉西坦组及左乙拉西坦+辛伐他汀组大鼠海马区神经元排列尚紧密,基本保持有序,说明左乙拉西坦单用或联用辛伐他汀均能明显减少海马神经元死亡,改变海马神经元变性,差异有统计学意义(\P\P

英文摘要

Objective To determine neuroprotective properties of levetiracetam and simvastatin using rats with pilocaroine-induced epilepsy. Methods Epileptic rat models were randomly divided into 4 groups, each being exposed to saline, simvastatin, levetiracetam, or levetiracetam+simvastatin. Brain tissues of the rats were examined. Nissl staining was used to determine pilocarpine-induced neuronal loss in CA1 and CA3 of hippocampus. Western blot was used to detect calpain-1 expression of hippocampus. Results Severe cell death was found 24 h after seizures, with a level significantly higher than the controls. Compared with the saline-treated cells, simvastatin did not decrease severe cell death (\P>0.05), but levetiracetam and levetiracetam+simvastatin decreased severe cell death 24 h after seizures (\P\P

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