Effects of Poria cocos polysaccharides on improving mouse nonalcoholic fatty liver disease via regulation of Akt/mTOR/SREBP-1c signaling pathway
10.3969/j.issn.1001-1528.2025.01.009
- VernacularTitle:茯苓多糖通过调控Akt/mTOR/SREBP-1c信号通路对非酒精性脂肪性肝病小鼠的改善作用
- Author:
Shi-yao HUANG
1
;
Liang KONG
;
Jia-hua WANG
;
Li-yan WANG
;
Chao-wei SUN
;
Xin-cheng LIU
;
Yu-he DONG
;
Li-yan GU
Author Information
1. 辽宁中医药大学中医学院,辽宁沈阳 110847
- Publication Type:Journal Article
- Keywords:
Poria cocos polysaccharides;
nonalcoholic fatty liver disease(NAFLD);
lipid metabolism;
Akt/mTOR/SREBP-1c signaling pathway
- From:
Chinese Traditional Patent Medicine
2025;47(1):58-65
- CountryChina
- Language:Chinese
-
Abstract:
AIM To investigate the improvement effects of Poria cocos polysaccharides(PCPs)on mouse nonalcoholic fatty liver disease(NAFLD).METHODS Forty-eight C57BL/6 mice were randomly divided into the blank group,the model group,the simvastatin group(4 mg/kg)and the high,medium and low dose PCPs groups(200,100 and 50 mg/kg),with 8 mice in each group.The NAFLD model was reproduced by 16 weeks feeding of high-fat and high-cholesterol diet,followed by 8 weeks administration of corresponding drug by gavage.The mice had their body mass and liver coefficient assessed;their levels of hepatic free fatty acid(FFA),and serum total cholesterol(TC),triglyceride(TG),high density lipoprotein cholesterol(HDL-C),low density lipoprotein cholesterol(LDL-C),aspartate aminotransferase(AST),alanine aminotransferase(ALT),γ-glutamyltransferase(γ-GT)and malondialdehyde(MDA)detected;their hepatic pathological changes and lipid deposition observed using HE staining,NAFLD activity score(NAS)and oil red O staining;and their hepatic protein expressions of Akt,mTOR,p-Akt,p-mTOR and SREBP-1c detected by Western blot.RESULTS Compared with the blank group,the model group demonstrated all increased body weight,liver coefficient,hepatic FFA level,and serum TC,TG,LDL-C,AST,ALT,γ-GT,MDA,IL-1β and TNF-α.levels(P＜0.05,P＜0.01);decreased HDL-C level and activities of SOD and GSH-Px(P＜0.05,P＜0.01);more obvious hepatic pathological damage as revealed by increased NAS score(P＜0.01)and increased lipid deposition area(P＜0.01).Compared with the model group,the groups intervened with high or medium dose PCPs,or simvastatin displayed decreased body weight,liver coefficient,hepatic FFA level,and serum TC,TG,LDL-C,AST,ALT,γ-GT,MDA,IL-1β and TNF-α levels(P＜0.05,P＜0.01);increased HDL-C level and SOD,GSH-Px activities(P＜0.05,P＜0.01);decreased hepatic pathological damage as revealed by the decreased NAS score and lipid deposition area(P＜0.05,P＜0.01);and decreased hepatic protein expressions of p-Akt,p-mTOR and SREBP-1c protein(P＜0.05)as well.CONCLUSION PCPs can improve mouse NAFLD,and its mechanism may lie in their function in reversing abnormal lipid metabolism via Akt/mTOR/SREBP-1c signaling pathway.
