摘要
目的:探讨参附注射液对大鼠肝缺血再灌注损伤的保护作用及其机制。方法:24只大鼠随机分为肝缺血再灌注组(IR组,n=12)和参附注射液加肝缺血再灌注组(SF组,n=12)。SF组给予参附注射液10ml/kg,腹腔注射,每日1次,连续给药6d,第6天于手术前30min给药。IR组大鼠同样方法给予相同剂量的生理盐水。两组均于第6天手术,两组均采用Pringle’s法阻断肝门缺血15min再灌注1h、3h,测定血浆血栓素B2(TXB2)和6-酮-前列腺素F1α(6-keto-PGF1α)和肝组织匀浆Na+-K+-ATP酶、Ca2+-Mg2+-ATP酶和SOD、GSH变化,肝组织NF-κBp65表达及肝组织形态学改变。结果:NF-κBp65阳性细胞为细胞核或细胞浆染成棕黄色或有棕黄色颗粒沉积,肝脏缺血再灌注后肝细胞深染,枯否细胞亦可见表达。肝缺血15min再灌注1h,SF组的阳性细胞百分数较IR组显著减低(P<0.05),SOD活性明显高于IR组(P<0.05),还原型GSH水平高于IR组但无显著性差异(P>0.05)。再灌注1h、3hSF组肝组织中Na+-K+-ATP酶、Ca2+-Mg2+-ATP酶水平均显著高于IR组(P<0.05)。再灌注3h后SF组血浆TXB2浓度较IR组低(P>0.05),而6-keto-PGF1a浓度升高(P>0.05),TXB2/6-keto-PGF1a比值显著降低(P<0.05)。SF组肝实质细胞和线粒体损伤明显减轻。结论:参附注射液通过抑制NF-κB活化、提高SOD和ATPase活性、改善TXA2/PGI2平衡保护肝脏缺血再灌注损伤。
Objective:To explore the protective effects of ShenFu injection on liver ischemia and reperfusion in rats. Methods: Twenty four male Wistar rats weighing 200~250g were divided into two groups randomly: SF group and IR group. Hepatic ischemia was indeed by Pringle s maneuver and then one or three hours reperfusion was performed. Venous blood samples for the measurement of TXB2 and 6-keto-PGF1α, were collected three hours after reperfusion. Liver tissue samples were collected one or three hours after reperfus...
出处
《陕西医学杂志》
CAS
北大核心
2008年第10期1284-1287,共4页
Shaanxi Medical Journal
基金
辽宁省教育厅重大应用基础研究基金项目(编号:2004C052)
