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油酰乙醇胺对小鼠局灶性脑缺血的保护作用
Authors
周宇
杨武双
杨立朝
金鑫
Publication date
20 September 2009
Publisher
Abstract
目的观察新型PPARα激动剂油酰乙醇胺(oleoyleth-anolamide,OEA)对小鼠局灶性脑缺血损伤的保护作用及特点。方法线栓法制备小鼠大脑中动脉栓塞模型诱导脑缺血。OEA(10、20、40mg·kg-1)在术前3d开始每天灌胃给药1次;或在缺血前0.5h、1h、再灌注同时、再灌后1h,各单次灌胃给予OEA40mg·kg-1。脑缺血1.5h,再灌注24h后,测定小鼠神经功能缺失评分、脑梗死体积、脑水肿等评定脑缺血损伤的指标。结果OEA(20、40mg·kg-1)术前多次给药及OEA(40mg·kg-1)缺血前0.5h或再灌注同时单次给药可明显改善小鼠神经功能损伤,减小脑梗死体积和减轻脑水肿程度,且以再灌注同时单次给药效果最为明显。结论OEA剂量及时间依赖性的保护小鼠局灶性脑缺血急性损伤,有效剂量为20mg·kg-1和40mg·kg-1,最佳治疗时间点为再灌注同时
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Last time updated on 16/06/2016