补阳还五汤对大鼠脑缺血后白细胞介素-1β和肿瘤坏死因子-α表达的影响

被引:13
作者
易健 [1 ]
黄昕 [1 ]
俞悦 [1 ]
蔡光先 [1 ]
刘柏炎 [1 ]
机构
[1] 湖南中医药大学省部共建中医内科学教育部重点实验室
关键词
补阳还五汤; 脑缺血; 白细胞介素-1β; 肿瘤坏死因子-α;
D O I
暂无
中图分类号
R686 [筋腱、韧带、滑囊疾病及损伤];
学科分类号
1002 ; 100210 ;
摘要
目的探讨补阳还五汤对脑缺血后大鼠脑组织自细胞介素-1β(IL-1β)和肿瘤坏死因子-α(TNF-α)表达的影响。方法按随机数字表法将SD大鼠分为正常对照组、假手术组、模型组、补阳还五汤组,后3组再按给药后1、3和7 d分为亚组,每组5只。采用大脑中动脉闭塞法(MCAO)建立右侧局灶性脑缺血大鼠模型;补阳还五汤组于术后2 h起灌服补阳还五汤10 ml/kg(14.2 g/kg)、每日1次。分别于相应时间点处死大鼠后取脑组织,采用酶联免疫吸附法(ELISA)和逆转录-聚合酶链反应(RT-PCR)测定IL-1β和TNF-α的蛋白及mRNA表达。结果正常对照组和假手术组有低水平的IL-1β和TNF-α蛋白及mRNA表达。模型组IL-1β、TNF-α蛋白及mRNA表达于给药后1 d开始升高,IL-1β蛋白及mRNA表达在3 d时达高峰后开始下降,TNF-α蛋白及mRNA表达于7 d达高峰。与模型组比较,补阳还五汤组给药后1、3和7 d脑组织中IL-1β和TNF-α蛋白及mRNA表达均明显下降[IL-1β蛋白(ng/L),1 d:90.290±8.693比102.556±13.934,3 d:129.632±11.050比150.117±8.552,7 d:66.185±9.020比91.362±9.901;TNF-α蛋白(ng/L),1 d:210.341±19.247比236.887±20.137,3 d:267.503±21.006比322.659±15.068,7 d:299.637±17.717比386.678±16.297;IL-1β mRNA,1 d:0.54±0.09比0.64±0.11,3 d:0.80±0.06比0.89±0.07,7 d:0.70±0.09比0.78±0.08;TNF-α mRNA,1 d:0.64±0.09比0.73±0.11,3 d:0.74±0.13比0.85±0.07,7 d:0.82.±0.07比0.93±0.08],差异均有统计学意义(P<0.05或P<0.01)。结论补阳还五汤可能通过下调缺血脑组织IL-1β和TNF-α的蛋白及mRNA表达来调控炎症因子的释放,从而起到脑保护作用。
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