【摘要】 目的:观察柴胡皂苷d(SSd)对二甲基亚硝胺(DMN)所致肝纤维化大鼠组织型纤溶酶原激活因子(TPA)、纤溶酶原抑制因子(PAI)、丙二醛(MDA)及一氧化氮(NO)的影响。方法:选用健康SD大鼠18只,随机分成正常组、模型组、治疗组。正常组每天ip生理盐水(NS),模型组和治疗组ip10mg.kg-1DMN,3次.wk-1,治疗组同时ipSSd1.8mg.kg-1,连续给药28d,末次给药1h后处死全部大鼠,腹主动脉取血、肝脏,进行病理观察,同时进行TPA、PAI、MDA及NO等指标的检测。结果:SSd能减轻模型大鼠肝组织纤维化的程度,同时能改善TPA、PAI纤溶活性,对MDA有清除作用,对肝细胞也有明显的保护作用,与模型组比较有显著性差异。结论:SSd对大鼠实验性肝纤维化有一定的保护作用,其机制可能与改善纤溶功能,清除过氧化脂质和提高体内NO水平有关。更多还原

【Abstract】 OBJECTIVE:To investigate the effects of saikosaponin-d(SSd) on tissue plasminogen activator(TPA),plasminogen activator inhibitor(PAI),malonaldehyde(MDA) and NO in rats with liver fibrosis induced by dimethylnitrosamine(DMN).METHODS:Eighteen SD healthy rats were randomized to control group(NS ip qd for 4 weeks),model group(10mg· kg-1 DMN ip 3 times per week for 4 weeks) and SSd-treated group(10mg· kg-1 DMN ip 3 times per week + SSd 1.8 mg· kg-1 ip for 28 consecutive days).All rats were killed 1h after the last time of administration,blood samples were taken from abdominal aorta and liver samples were taken for the observation of pathology and detection of indices of TPA,PAI,MDA and NO etc.RESULTS:SSd could lessen the degree of liver fibrosis and improve the fibrinolytic activities of TPA and PAI,meanwhile,it showed clearance effect on MDA and marked protective effect on hepatic cells.There were significant differences between SSd-treated group and the model group.CONCLUSION:SSd exhibited protective function on experimental hepatic fibrosis in rats,which may be attributed to the improving of fibrinolytic activity,eliminating of lipid peroxidation and enhancing of NO level.更多还原