期刊
JOURNAL OF MEDICINAL FOOD
卷 22, 期 11, 页码 1100-1109出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/jmf.2019.4443
关键词
fecal lipids; platycodon grandiflorus; thermogenic activity; triterpenoid saponin
资金
- Support Research and Commercialization Project of the Ministry of Science, and ICT and Future Planning through the National Research Foundation of Korea [NRF-20170701C4048818]
Adipocytes regulate lipid metabolism according to physiological energy requirements. A dysfunctional lipid metabolism can lead to obesity and its complications such as hepatic steatosis, diabetes, and hyperlipidemia. In our study, the impact of Platycodon grandiflorus root ethanol extract (PGH) on lipid excretion and thermogenesis-related markers in diet-induced obesity mice was analyzed. Our data show that PGH elevated fatty acid uptake in epididymal adipose tissue by increasing Cd36, Slc27a1, Ffar2, and Ffar4 expression, which led to decreased blood free fatty acid concentrations. Moreover, PGH normalized body weight and fat mass in diet-induced obese mice by increasing lipolysis (Plin1, Atgl, and Hsl) and fatty acid oxidation. Changes in the levels of browning-related genes, enzyme activity of carnitine palmitoyltransferase, and the overall transcriptome (Bmp4, Cidec, Ucp3, Sirt3, and Cox4i1) led to promote brown adipose tissue-like features (browning) in epididymal white adipose tissue and enhanced energy expenditure. Our results suggest that PGH promotes lipid excretion and thermogenic function in high-fat diet-induced obese mice, which are mediated by regulation of fat metabolism.
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