Effects of triglyceride and ethyl ester forms of EPA on hepatic lipid metabolism in mice with non-alcoholic fatty liver disease
2024
Junli Feng | Shitong Wang | Feifei Chen | Jian Zhang | Qingcheng Wang | Lili Jiang | Zejun Wang | Qing Shen
In this study, the beneficial effects of EPA in ethyl esters (EE) and triacylglycerides (TAG) forms on high fat diet (HFD)-induced non-alcoholic fatty liver disease (NAFLD) were studied and compared. Results indicated that both EPA-TAG and EPA-EE can alleviate pathological features of NAFLD, such as hepatic lipid accumulation and lobular inflammation, with a more pronounced protective effects observed in EPA-TAG treated mice. The integrated hepatic transcriptomic, metabolic and gut microbiota profiles suggest that EPA-TAG and EPA-EE improved hepatic steatosis by suppression of food intake and lipogenesis, promotion of lipid and phospholipid PUFA remodeling, ketogenesis and fatty acids oxidation, possibly via activating the AMPK/adipocytokine signaling pathway. The protective effect of EPA was also associated with the regulation of intestinal flora structure. In general, EPA-TAG was found to be more effective than EPA-EE in preventing HFD-induced NAFLD by reducing appetite, improving hepatic lipid metabolism, increasing energy expenditure, and enhancing gut-liver cross-talk.
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