吉林大学学报（医学版）2017，Vol.43Issue(6)：1103-1108,前插3,7.DOI:10.13481/j.1671-587x.20170607
北五味子多糖对高脂诱导非酒精性脂肪性肝病大鼠的降血脂作用及其抗氧化活性
Lipid-lowering effect and antioxidant activity of polysaccharide from Schisandra Chinensis in rats with non-alcoholic fatty liver disease induced by high-fat diet
摘要
Abstract
Objective:To investigate the lipid-lowering effect and antioxidant activity of polysaccharide from Schisandra Chinensis (SCP)in the rats with non-alcoholic fatty liver disease (NAFLD)induced by high-fat diet,and to provide a theoretical basis for the development and utilization of Schisandra Chinensis.Methods: A total of 32 male Wistar rats were selected.Sixteen from the 32 rats were randomly selected and divided into normal control group (intragastrical administration of water,combined with normal diet,n = 8)and SCP group (intragastrical administration of 50 mg·kg-1 SCP,combined with normal diet,n=8).The remaining 16 rats were fed with high-fat diet for 4 weeks and the confirmed NAFLD rat models were set up.A total of 16 NAFLD rats were randomly divided into NAFLD group (intragastrical administration of water, combined with high-fat diet,n = 8 ) and NAFLD+SCP group (intragastrical administration of 50 mg·kg-1 SCP,combined with high-fat diet,n=8).After treated for 12 weeks,the body weights of all the rats were weighed and the liver index was calculated.The levels of total cholesterol (TC),triglyceride (TG),low density lipoprotein cholesterol (LDL-C),high density lipoprotein cholesterol (HDL-C),alanine aminotransferase (ALT)and aspartate aminotransferase (AST)in the serum of all the rats were determined.The levels of TC and TG in liver tissue of the rats were measured by enzymatic method. The malondialdehyde (MDA)levels and superoxide dismutase (SOD)activities in serum and liver tissue and the glutathione (GSH)levels in liver tissue of the rats were analyzed by TBA,xanthinoxidase and microscale enzyme methods,respectively. HE staining was used to observe the pathomorphology of liver tissue of the rats. Results:Compared with normal control group,the liver index of the rats in NAFLD group was increased (P <0.01);the levels of TC,TG,LDL-C,ALT and AST in serum of the rats were increased (P <0.01),the levels of TC and TG in liver tissue of the rats were increased (P <0.01),the MDA level was increased (P <0.01)and the SOD activity was decreased (P <0.01),and the GSH levels in liver tissue and serum were decreased (P <0.01). Compared with NAFLD group,the body weight and liver index,serum levels of TC,TG,LDL-C ,ALT and AST of the rats in NAFLD + SCP group were decreased (P < 0.05 ),the levels of TC and TG in liver tissue were decreased (P <0.01),the MDA level was decreased (P <0.01),the SOD activities in serum and liver tissue were increased (P < 0.01),and the level of GSH in liver tissue was increased (P < 0.01).The HE staining results showed that the structure of hepatic lobules of the rats in NAFLD group was disordered and showed significant hepatic steatosis,and the hepatic steatosis in hepatic lobules of the rats in NAFLD+SCP group was significantly reduced.Conclusion:SCP has a regulation effect in the NAFLD rats induced by high-fat diet,and its mechanism may be related to the anti-oxidative stress.关键词
北五味子/多糖/非酒精性脂肪性肝病/氧化应激Key words
Schisandra Chinensis/polysaccharide/non-alcoholic fatty liver disease/oxidative stress分类
医药卫生引用本文复制引用
苑荣爽,李贺,孙靖辉,庄文越,陈建光,王春梅..北五味子多糖对高脂诱导非酒精性脂肪性肝病大鼠的降血脂作用及其抗氧化活性[J].吉林大学学报（医学版）,2017,43(6):1103-1108,前插3,7.基金项目
吉林省科技厅医药产业推进计划项目资助课题(20140311052YY) （20140311052YY）
吉林省科技厅产业技术创新战略联盟项目资助课题(20150309004YY) （20150309004YY）
