复健片对大脑中动脉闭塞模型大鼠脑组织P-4502C11mRNA表达的影响

目的:探讨复健片对大脑中动脉闭塞(MCAO)模型大鼠脑组织P-4502C11mRNA表达的影响。方法:将72只雄性Wistar大鼠随机分为假手术组、模型组和药物组,每组24只,采用电凝大脑中动脉手术造模。自术后1周末始,药物组给予复健片水溶液灌胃,其余两组给予等量生理盐水。在每个观察时点(1周、2周、3周末),各组随机抽取8只大鼠,采用激光多普勒血流仪测定梗死侧额叶局部脑血流量(rCBF),用RT-PCR技术测定梗死额叶周围皮质P-4502C11mRNA的表达。结果:造模结束1周后,与假手术组比较,模型组与药物组梗死侧额叶皮质rCBF、P-4502C11mRNA表达量均显著降低(P<0.01);而治疗1周、2周后,药物组与同期模型组比较,梗死侧额叶皮质的rCBF均有所增加(均为P<0.05),同时,P-4502C11mRNA表达量亦显著增强(分别为P<0.05,P<0.01)。结论:复健片可上调MCAO大鼠受损侧脑组织中原本因缺血而下调的P-4502C11mRNA表达,增强星形胶质细胞释放环氧-二十碳三烯酸(EETs)的能力,这可能是本药改善受损脑组织血流灌注的重要机制之一。

Effect of Fujian tablets on expression of P-4502C11mRNA in middle cerebral artery occlusion rats

Objective:To investigate effect of Fujian tablets on expression of P-4502C11mRNA in middle cerebral artery occlusion(MCAO) rats.Methods:72 male Wistar rats were randomly divided into three groups(n=24 in each group):sham operation,model and drug groups.Middle cerebral artery was occluded by electrocoagulation to make MCAO model.From the end of 1 week after operation,the solution of Fujian tablets was given to drug group by gavage method and equal dose of normal salines were given to other two groups.At thre...