The Ameliorating Effects of n-3 Polyunsaturated Fatty Acids on Liver Steatosis Induced by a High-Fat Methionine Choline-Deficient Diet in Mice

0581927 - ÚMG 2024 RIV CH eng J - Článek v odborném periodiku
Šmídl, V. - Dvořák, K. - Stehnová, K. - Strnad, Hynek - Rubert, J. - Stříteský, J. - Staňková, B. - Stránská, M. - Hajšlová, J. - Brůha, R. - Vítek, L.
The Ameliorating Effects of n-3 Polyunsaturated Fatty Acids on Liver Steatosis Induced by a High-Fat Methionine Choline-Deficient Diet in Mice.
International Journal of Molecular Sciences. Roč. 24, č. 24 (2023), č. článku 17226. ISSN 1661-6596
Institucionální podpora: RVO:68378050
Klíčová slova: lipidome * lipids * n-3 fatty acids * non-alcoholic fatty liver disease * non-alcoholic steatohepatitis
Obor OECD: Biochemistry and molecular biology
Impakt faktor: 5.6, rok: 2022
Způsob publikování: Open access
https://www.mdpi.com/1422-0067/24/24/17226

The pathogenesis of non-alcoholic fatty liver disease (NAFLD) is associated with abnormalities of liver lipid metabolism. On the contrary, a diet enriched with n-3 polyunsaturated fatty acids (n-3-PUFAs) has been reported to ameliorate the progression of NAFLD. The aim of our study was to investigate the impact of dietary n-3-PUFA enrichment on the development of NAFLD and liver lipidome. Mice were fed for 6 weeks either a high-fat methionine choline-deficient diet (MCD) or standard chow with or without n-3-PUFAs. Liver histology, serum biochemistry, detailed plasma and liver lipidomic analyses, and genome-wide transcriptome analysis were performed. Mice fed an MCD developed histopathological changes characteristic of NAFLD, and these changes were ameliorated with n-3-PUFAs. Simultaneously, n-3-PUFAs decreased serum triacylglycerol and cholesterol concentrations as well as ALT and AST activities. N-3-PUFAs decreased serum concentrations of saturated and monounsaturated free fatty acids (FAs), while increasing serum concentrations of long-chain PUFAs. Furthermore, in the liver, the MCD significantly increased the hepatic triacylglycerol content, while the administration of n-3-PUFAs eliminated this effect. Administration of n-3-PUFAs led to significant beneficial differences in gene expression within biosynthetic pathways of cholesterol, FAs, and pro-inflammatory cytokines (IL-1 and TNF-α). To conclude, n-3-PUFA supplementation appears to represent a promising nutraceutical approach for the restoration of abnormalities in liver lipid metabolism and the prevention and treatment of NAFLD.
Trvalý link: https://hdl.handle.net/11104/0350077