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Sacha inchi oil alleviates gut microbiota dysbiosis and improves hepatic lipid dysmetabolism in high-fat diet-fed rats

Abstract

Dietary ω-3 polyunsaturated fatty acids (PUFAs) benefit human against development of hyperlipidaemia, but the underlying mechanisms are still poorly understood. Here, we demonstrated that oral consumption of sacha inchi oil, which riches in α-linolenic acid, alleviated dyslipidemia, hepatic steatosis and inflammatory infiltration in high-fat diet (HFD)-fed rats. Sacha inchi oil administration reversed the gut microbiota dysbiosis, and altered the gut microbiota metabolome, in particular prevented the bile acid dysmetabolism caused by HFD. Sacha inchi oil intake ameliorated the hepatic lipid dysmetabolism in HFD-fed rats, via potentiating the biosynthesis and reuptake of bile acids, reducing the de novo lipogenesis, promoting fatty acids beta-oxidation, and alleviating the dysregulation of glycerolipid, glycerophospholipid, and sphingolipid metabolisms. The results shown that dietary of sacha inchi oil can alleviate gut microbiota dysbiosis and reduce lipid dysmetabolism in HFD rats, and provide novel insights on the molecular mechanisms by which plant-derived ω-3 PUFAs prevent development of hyperlipidaemia.

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Supplementary files

Article information


Submitted
06 May 2020
Accepted
19 Jun 2020
First published
25 Jun 2020

Food Funct., 2020, Accepted Manuscript
Article type
Paper

Sacha inchi oil alleviates gut microbiota dysbiosis and improves hepatic lipid dysmetabolism in high-fat diet-fed rats

P. Li, J. Huang, N. Xiao, X. Cai, Y. Yang, J. Deng, L. Zhang and B. Du, Food Funct., 2020, Accepted Manuscript , DOI: 10.1039/D0FO01178A

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