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Mulberry leaf phenolics and fiber exert anti-obesity through the gut microbiota-host metabolism pathway

文献类型： 外文期刊

作者： Liao, Sentai 1 ; Long, Xiaoshan 1 ; Zou, Yuxiao 1 ; Liu, Fan 1 ; Li, Qian 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, Key Lab Funct Foods, Minist Agr & Rural Affairs,Guangdong Key Lab Agr, Guangzhou 510610, Peoples R China

关键词： gut microbiota; lipid metabolism; mulberry leaf; obesity

期刊名称：JOURNAL OF FOOD SCIENCE （ 影响因子：2.478； 五年影响因子：2.693 ）

ISSN： 0022-1147

年卷期： 2021 年 86 卷 4 期

页码：

收录情况： SCI

摘要： The effect of mulberry leaf powder and components on preventing obesity and regulating lipid metabolism were investigated in the present study. The mechanism of action was explored by examining the gut microbiota and lipid metabolism-related signaling pathways. As evidenced by the nutritional obesity rats model experiments, the middle concentration mulberry leaf powder (MLP) group (0.8 g/kg center dot d) significantly reduced Lee's index (25.1, compared with model control group [MC] 25.7) and had the strongest lipid metabolism regulation effect. Furthermore, the suppression effects of different mulberry leaf components on nutritional obesity were compared and the mulberry leaf phenolics and fiber mixture (Mulberry leaf mixture [MLM]) group (0.6 g/kg center dot d) was found to have the strongest efficacy (body weight [BW] reduced 12.4%). Real time PCR (RT-qPCR) and western blot analyses demonstrated that MLP (0.8 g/kg center dot d) and its components inhibited adipocyte differentiation and triglyceride synthesis through the PPAR-gamma- C/EBP-alpha signaling pathway, resulting in lipid metabolism regulation. Gut microbiota analysis indicated that MLM (0.6 g/kg center dot d) prevented the reduction in intestinal flora diversity (reach 491 species) caused by high-energy feed, and reduced the Firmicutes/Bacteroidetes ratio (to 7.99%) and the obesity associated flora, Lachnospiraceae (to 19.1%), whereas it improved the content of the beneficial flora, Lactobacilli, Lactobacillus_johnsonii (reach 11.77%). MLM improved the bioaccessibility and bioavailability of the two functional components (phenolics and fiber) and maximized the anti-obesity effect through the gut microbiota-host metabolism pathway. Practical Application The anti-obesity and lipid metabolism regulation effect of mulberry leaf components were evaluated in this study. The fiber and phenolics of this plant have the potential for development of weight-loss functional foods.

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