维拉帕米和生脉注射液对大鼠肝脏缺血再灌注损伤的保护作用

目的 观察维拉帕米和生脉注射液对大鼠肝脏缺血再灌注损伤的保护作用.方法 将40只大鼠分为假手术组(A组)、缺血再灌注组(B组)、维拉帕米组(C组)和生脉注射液组(D组),每组10只.A组开腹后再关腹;B组开腹后夹闭左肝蒂30 min,再关腹;C组在开腹前静脉注射维拉帕米,开腹夹闭左肝蒂30 min,再关腹;D组在开腹前3 d每天经腹腔注射生脉注射液,开腹夹闭左肝蒂30 min,再关腹.各组均在关腹48 h后再开腹,每只大鼠取缺血肝组织检测查丙二醛(MDA)、热休克蛋白70(HSP70)的水平,光镜下观察肝组织的形态变化;取血检测谷丙转氨酶(ALT)、天门冬氨酸转氨酶(AST)、肿瘤坏死因子(TNF-α)的水平.结果 B、C、D组ALT、AST、TNF-α及MDA测定结果与A组比较均有显著性差异(F=5.10～53.01,q=1.38～17.58,P<0.05);C、D两组ALT、AST、TNF-α及MDA含量均低于B组,差异具有显著性(q=2.89～10.08,P<0.05),而C、D两组以上各指标除ALT比较差异有显著性(q=2.97,P<0.05)外,其他指标比较差异无显著性(P>0.05).C、D两组HSP70的表达明显少于B组,而C组HSP70的表达略少于D组;C、D两组肝细胞肿胀、坏死程度均较B组轻.结论 维拉帕米和生脉注射液可明显改善大鼠肝脏缺血再灌注后肝组织的损伤程度.

THE PROTECTIVE EFFECT OF VERAPAMIL AND SHENGMAI INJECTION ON ISCHEMIA-REPERFUSION LIVER INJURY IN RATS

Objective To observe the protective effect of Verapamil and Shengmai injection on ischemia-reperfusion injury in rat liver. Methods Forty healthy female Wistar rats were evenly randomized to sham operation group(group A),the abdomen was opened and then closed;ischemia-reperfusion group(group B),the blood supply of left hepatic lobe(LHL) was clamped for 30 minutes,the abdomen was then closed;Verapamil group(group C),intravenous Verapamil was given before opening abdomen,the blood supply of LHL was blocked as...