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脂质过氧化抑制剂对大鼠全脑缺血后海马CA1区诱发电位的影响 被引量:1

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摘要 目的:选用脂质过氧化抑制剂(U74389F)作为脑保护剂,观察其对大鼠全脑缺血后的海马CA1区诱发电位的影响。方法:雄性SD大鼠20只,随机分三组:对照组(6只),缺血组(7只)与治疗组(7只)均脑缺血10分钟,再灌注7小时,治疗组缺血前1小时腹腔注射U74289F 10mg/kg。结果:大鼠全脑缺血再灌注6小时后,海马诱发电位中兴奋性突触后电位(EPSP)的斜率与缺血前相比显著增加(P<0.05)。治疗组缺血再灌注6小时后EPSP的斜率与缺血组同期相比显著减小(P<0.05)。结论:缺血再灌注6小时后海马CA1区的神经元突触功能毒性增强,而U74389F能有效降低此毒性增强作用,从电生理学角度说明了脑保护作用。
机构地区 上海长海医院
出处 《中华麻醉学杂志》 CAS CSCD 北大核心 1998年第2期107-109,共3页 Chinese Journal of Anesthesiology
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