Effect of gentiopicroside on AMPKα signaling pathway of rats with non-alcoholic fatty liver disease
10.7501/j.issn.0253-2670.2018.21.027
- Author:
Jun-Zi WU
1
Author Information
1. College of Basic Medicine, Yunnan University of Traditional Chinese Medicine
- Publication Type:Journal Article
- Keywords:
(AMP)-activated protein kinase (AMPK);
Adenosine 5'-monophosphate;
Gentiopicroside;
Inflammatory factors;
Non-alcoholic fatty liver disease (NAFLD);
Oxidation
- From:
Chinese Traditional and Herbal Drugs
2018;49(21):5142-5148
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the therapeutic effect of gentiopicroside has a on rats with non-alcoholic fatty liver disease (NAFLD) induced by high-fat and high-sucrose diet, and explore its mechanism. Methods After 10 d adaptive feeding, 60 male SD rats were randomly divided into the normal group, model group, gentiopicroside low, medium, high dose treatment groups, and positive drug polyeno phosphoryl choline (PPC) intervention group. Except for the normal group, the rats in other groups were received a high fat and glucose diet for 12 weeks to establish NAFLD model; After model successfully established, gentiopicroside low, medium, and high dosetreatment groups were given 50, 100, and 200 mg/(kg•d) gentiopicroside, PPC group was ig given 23 mg/(kg•d) PPC, and 500 μL/(kg•d) saline was given to the normal and model groups. After treated for eight weeks, the rats were sacrificed, and the serum was collected from rats to detect the liver function, blood lipid, serum oxidation, antioxidant capacity, and inflammatory factors. HE staining was used to observe pathological changes of liver. In addition, western blotting and qRT-PCR were used to detect the expression of AMPKα and p-AMPKα. Results HE staining showed that the size of liver cells in the normal group was uniform and the nuclei were evenly distributed, there were obvious vacuoles and a certain inflammatory reaction in the model group. Compared with the model group, gentiopicroside treatment group and PPC group (especially the gentiopicroside middle and high dose group) had a significant improvement, but there were still some differences compared with the normal group; Compared with the normal group, the AST, ALT, HDL-C, LDL-C, MDA, IL-1, and IL-6 in the model group were significantly increased (P <0.05), the levels of AST, ALT, MDA, IL-1, and IL-6 were significantly decreased (P <0.05), SOD was significantly increased (P<0.05), and HDL-C and LDL-C were decreased in the model group (P>0.05); The results of Western blotting and qRT-PCR showed that compared with the normal group, the expression of p-AMPKα protein and AMPKα mRNA in the model group was significantly decreased (P<0.05). After gentiopicroside and PPC administration, they were significantly increased (P<0.05), and gentiopicroside groups showed a significant dose-dependent manner, and the middle dose and high dose of gentiopicroside groups were better than the PPC group (P<0.05), while the expression of AMPKα protein has no significant difference in each group (P<0.05). Conclusion The NAFLD rats showed a obvious hepatic fat infiltration and dyslipidemia, the liver function index and inflammatory factors levels were elevated, and the anti-oxidant capacity was decreased. Gentiopicroside significantly improved above symptoms, which may be associated with the increased expression of p-AMPKα in liver tissue of NAFLD rats by gentiopicroside.
