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帕瑞昔布后处理对大鼠局灶性脑缺血再灌注损伤及p-Akt的影响

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摘要 目的探讨帕瑞昔布后处理对大鼠局灶性脑缺血再灌注损伤的影响及可能机制。方法采用大脑中动脉线栓法制备大鼠局灶性脑缺血再灌注损伤模型。雄性SD大鼠48只,随机分为假手术组(A组)、缺血再灌注组(B组)、帕瑞昔布后处理组(C组),每组16只。每组于再灌注后24 h时随机选8只TTC染色测定脑梗死体积,每组剩余8只HE染色观察细胞组织形态改变,TUNEL染色计数凋亡细胞数,免疫组化监测p-Akt的表达。结果与缺血再灌注组比较,帕瑞昔布后处理组脑梗死体积百分比变小(P<0.05),神经元变性和脑水肿减轻,凋亡细胞数减少(P<0.05),p-Akt的表达增多(P<0.05)。结论帕瑞昔布后处理对大鼠局灶性脑缺血再灌注损伤具有保护作用,其保护机制可能与激活p-Akt的表达有关。
出处 《广东医学》 CAS CSCD 北大核心 2012年第22期3378-3380,共3页 Guangdong Medical Journal
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