糖肝煎对糖尿病并脂肪肝大鼠肝功能及肝组织病理形态学的影响

目的观察糖肝煎对糖尿病并脂肪肝大鼠肝功能及肝组织病理形态学的影响,并探讨其可能的作用机制。方法采用小剂量链脲佐菌素(STZ)腹腔注射加高脂饲料喂养方法,建立2型糖尿病并脂肪肝动物模型。将造模成功的大鼠随机分为模型对照组、文迪雅组、糖肝煎组,另设同龄正常大鼠为正常组,比较各组大鼠血清丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、血清及肝组织超氧化物歧化酶(SOD)、丙二醛(MDA)及谷胱甘肽过氧化物酶(GSH-Px)等指标,采用苏木精-伊红染色,光镜下观察各组大鼠肝组织病理形态学改变。结果①模型组与正常组比较,血清ALT、AST、血清及肝组织SOD、MDA、GSH-Px等指标差异均有统计学意义(P0.01);糖肝煎组与模型组比较,血清ALT、AST、血清及肝组织SOD、MDA、GSH-Px等指标均有明显改善(P0.05或P0.01);文迪雅组与模型组比较,血清SOD、MDA、GSH-Px有显著改善(P0.05或P0.01),而血清ALT、AST及肝组织SOD、MDA、GSH-Px无明显改善(P0.05);糖肝煎组与文迪雅组比较,血清ALT、AST差异有统计学意义(P0.05或P0.01),而血清及肝组织SOD、MDA、GSH-Px差异无统计学意义(P0.05)。②模型组大鼠肝细胞胞质内充满脂滴,大部分肝细胞呈脂肪变性,可见点状坏死灶及炎性细胞浸润,部分肝细胞呈气球样变;糖肝煎组肝细胞胞质内脂滴较少,可见双核肝细胞,未见炎性细胞浸润;文迪雅组大鼠肝脏脂肪变性程度介于模型组与糖肝煎组之间。结论糖肝煎具有保肝和改善肝组织病理形态学的作用,其机制可能是通过改善氧化应激途径来实现的。

Effects of TGJ on the Liver Function and Pathological Morphology of Liver Tissue of Rats Suffered from Diabetes and Fatty Liver

Objective To observe how TGJ affects liver function and pathological morphology of rats suffered from diabetes and fatty liver,and probe the possible mechanism.Methods Rat models of type 2 diabetes and fatty liver were established by injecting small doses of STZ and feeding high fat fodder.The model rats were randomly divided into model control group,avandia group,and TGJ group.The normal rats were considered as normal group.Plasma ALT and AST,plasma and liver tissue SOD,MDA and GSH-Px in the four groups we...