NDLI: Effects of exercise on high-fat diet–induced non-alcoholic fatty liver disease and lipid metabolism in ApoE knockout mice

Content Provider	Springer Nature : BioMed Central
Author	Huang, Wen-Ching Xu, Jin-Wei Li, Shiming Ng, Xin Er Tung, Yu-Tang
Abstract	Background Non-alcoholic fatty liver disease (NAFLD), which is growing more common in the Western world, has become the main cause of chronic liver disease and is strongly associated with metabolism syndromes. NAFLD can indicate a wide spectrum of hepatic pathologies, ranging from simple hepatic steatosis and inflammatory non-alcoholic steatohepatitis to more severe stages of fibrosis and cirrhosis. Moreover, evidence has demonstrated that physical inactivity and westernized dietary habits may facilitate the development of NAFLD. Lipid modulation and metabolism could be important factors in the development of steatosis. Lipid species, characterized using a lipidomic approach with untargeted analysis, could provide potential biomarkers for the pathogenesis of NAFLD or therapeutic applications. Thus, in this study, the effects of exercise on the improvement of NAFLD were further investigated from a lipidomic perspective through the aspects of lipid regulation and metabolism. Methods Wild type (WT) C57BL/6 J and C57BL/6-ApoEem1Narl/Narl mice were assigned to one of four groups: WT mice fed a normal chow diet (CD), apolipoprotein E (ApoE) knockout mice fed a normal CD, ApoE knockout mice fed a high-fat diet (HFD), and ApoE knockout mice fed a HFD and provided with swimming exercise. The treatments (e.g., normal diet, HFD, and exercise) were provided for 12 consecutive weeks before the growth curves, biochemistry, fat composition, pathological syndromes, and lipid profiles were determined. Results Exercise significantly reduced the HFD-induced obesity (weight and fat composition), adipocyte hypertrophy, liver lipid accumulation, and pathological steatosis. In addition, exercise ameliorated HFD-induced steatosis in the process of NAFLD. The lipidomic analysis revealed that the changes in plasma triglyceride (14:0/16:0/22:2), phosphatidic acid (18:0/17:2), and phosphatidylglycerol (16:0/20:2) induced by the administration of the HFD could be reversed significantly by exercise. Conclusions The 12-week regular exercise intervention significantly alleviated HFD-induced NAFLD through modulation of specific lipid species in plasma. This finding could elucidate the lipids effects behind the hepatic pathogenesis with exercise.
Related Links	https://nutritionandmetabolism.biomedcentral.com/counter/pdf/10.1186/s12986-022-00644-w.pdf
Ending Page	13
Page Count	13
Starting Page	1
File Format	HTM / HTML
ISSN	17437075
DOI	10.1186/s12986-022-00644-w
Journal	Nutrition & Metabolism
Issue Number	1
Volume Number	19
Language	English
Publisher	BioMed Central
Publisher Date	2022-02-16
Access Restriction	Open
Subject Keyword	Clinical Nutrition Metabolic Diseases ApoE knockout Exercise Non-alcoholic fatty liver disease High-fat diet Lipidomic
Content Type	Text
Resource Type	Article
Subject	Medicine Endocrinology, Diabetes and Metabolism Nutrition and Dietetics
Journal Impact Factor	3.9/2023
5-Year Journal Impact Factor	4.3/2023

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