期刊
FOOD & FUNCTION
卷 7, 期 5, 页码 2469-2478出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6fo00401f
关键词
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资金
- National Natural Science Foundation of China [31501475]
- Tianjin Natural Science Foundation [15JCQNJC46300]
- National Key Technology RD Program [2012BAD33B08]
- Foundation of Engineering Research Center of Food Biotechnology, Ministry of Education, P. R. China
With the current changes in diet and living habits, obesity has become a global health problem. Thus, the weight-reducing function of tea has attracted considerable attention. This study investigated the anti-obesity effect and the mechanism of black tea (BT) polyphenols and polysaccharides in male Sprague-Dawley rats. The BT polyphenols and polysaccharides reduced the body weight, Lee's index, visceral fat weight, and fat cell size but improved the biochemical profile and increased the fecal fatty acid content, thereby preventing high-fat diet-induced obesity. A gene expression profile array was used to screen eight upregulated and five downregulated differentially expressed genes that affect fat metabolic pathways, such as glycerolipid and glycerophospholipid metabolism, fatty acid degradation, glycolysis and gluconeogenesis, bile and pancreatic secretion, the insulin signaling pathway, and steroid hormone secretion. The BT polyphenols and polysaccharides suppressed the formation and accumulation of fat and promoted its decomposition to prevent obesity.
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