茯苓皮水提物对四氯化碳诱导大鼠肝纤维化的改善作用

摘要

目的:研究茯苓皮水提物(PWE)对四氯化碳(CCl4)诱导大鼠肝纤维化的改善作用.方法:将84只大鼠随机分为空白对照组、溶剂对照组、模型对照组、阳性对照组(复方鳖甲软肝片,0.75 g/kg)和PWE低、中、高剂量组(0.9、1.8、3.6 g/kg,以生药计),每组12只.除空白对照组与溶剂对照组(ip植物油)外,其余各组大鼠均ip CCl4-植物油溶液复制肝纤维化模型.造模成功后,各给药组大鼠ig相应药物,其余3组大鼠ig等体积生理盐水,每天1次,连续4周.给药结束后,采用酶联免疫吸附法检测大鼠血清中天冬氨酸转氨酶(AST)、丙氨酸转氨酶(ALT)、层黏连蛋白(LN)、透明质酸(HA)、羟脯氨酸(Hyp)和肝组织中还原性谷胱甘肽(GSH)、超氧化物歧化酶(SOD)、丙二醛(MDA)的含量,苏木精-伊红染色和Masson染色观察大鼠肝组织病理变化.结果:与空白对照组比较,溶剂对照组大鼠各指标均无明显变化(P>0.05);模型对照组大鼠血清中AST、ALT、LN、HA、Hyp含量和肝组织中MDA含量显著升高(P0.05). AST,ALT,LN,HA,Hyp contents in serum and MDA con-tent in liver tissue in model control group were significantly increased(P<0.05);GSH,SOD contents in liver tissue were signifi-cantly reduced(P<0.05);and liver tissue showed obvious fibrosis lesions. Compared with model control group,AST,ALT,LN, HA,Hyp contents in serum and MDA content in liver tissue in PWE medium-dose,high-dose groups were significantly reduced (P<0.05);GSH,SOD contents in liver tissue were significantly increased(P<0.05);fibrosis degree of liver tissue was obvious-ly relieved. CONCLUSIONS:PWE shows good improvement effect on liver fibrosis of rats induced by CCl4,which may be related to inhibiting the lipid peroxidation.