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J Agric Food Chem. 2016 Feb 3;64(4):969-79. doi: 10.1021/acs.jafc.5b05350. Epub 2016 Jan 25.

Lipidomics Biomarkers of Diet-Induced Hyperlipidemia and Its Treatment with Poria cocos.

Author information

1
Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University , Xi'an 710069, China.
2
Division of Nephrology and Hypertension, School of Medicine, University of California-Irvine , Irvine, California 92897, United States.

Abstract

Hyperlipidemia is a major cause of atherosclerotic cardiovascular disease. Poria cocos (PC) is a medicinal product widely used in Asia. This study was undertaken to define the alterations of lipid metabolites in rats fed a high-fat diet to induce hyperlipidemia and to explore efficacy and mechanism of action of PC in the treatment of diet-induced hyperlipidemia. Plasma samples were then analyzed using UPLC-HDMS. The untreated rats fed a high-fat diet exhibited significant elevation of plasma triglyceride and total and low-density lipoprotein (LDL) cholesterol concentrations. This was associated with marked changes in plasma concentrations of seven fatty acids (palmitic acid, hexadecenoic acid, hexanoylcarnitine, tetracosahexaenoic acid, cervonoyl ethanolamide, 3-hydroxytetradecanoic acid, and 5,6-DHET) and five sterols [cholesterol ester (18:2), cholesterol, hydroxytestosterone, 19-hydroxydeoxycorticosterone, and cholic acid]. These changes represented disorders of biosynthesis and metabolism of the primary bile acids, steroids, and fatty acids and mitochondrial fatty acid elongation pathways in diet-induced hyperlipidemia. Treatment with PC resulted in significant improvements of hyperlipidemia and the associated abnormalities of the lipid metabolites.

KEYWORDS:

Poria cocos; fatty acid metabolism; hyperlipidemia; lipidomics; mass spectrometry; ultraperformance liquid chromatography

PMID:
26758241
DOI:
10.1021/acs.jafc.5b05350
[Indexed for MEDLINE]

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