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KMID : 1161420210240101058
Journal of Medicinal Food
2021 Volume.24 No. 10 p.1058 ~ p.1067
Fucoidan Protects Against High-Fat Diet-Induced Obesity and Modulates Gut Microbiota in Institute of Cancer Research Mice
Huang Jinli

Huang Juan
Li Yao
Lv Huiyun
Yin Tianyi
Fan Shujun
Zhang Caihua
Li Huajun
Abstract
Fucoidan possesses various biological activities, such as anticoagulant, immunomodulatory, anti-inflammatory, potential antioxidant, and others. In this study, we investigated the effect of fucoidan on high-fat diet-induced obesity, inflammation, and gut microbiota in Institute of Cancer Research mice. Mice were gavaged with 50?mg/(kg¡¤d) (Fuc0.5 group) or 250?mg/(kg¡¤d) (Fuc2.5 group) of fucoidan for 5 weeks. Fucoidan alleviated obesity and tissue damage by decreasing body weight and body mass index, decreasing body weight gain, improved organ index, liver steatosis, and improved the structure of the small intestine. In addition, fucoidan decreased total cholesterol, triglyceride, and low-density lipoprotein cholesterol, and increased high-density lipoprotein cholesterol. Moreover, fucoidan reduced serum lipopolysaccharide concentrations, tumor necrosis factor-¥á, and total bile acid. Furthermore, fucoidan improved the structure of gut microbiota and significantly increased the abundance (Shannon diversity index, evenness, and Faecalibacterium prausnitzii) determined by denaturing gradient gel electrophoresis and quantitative PCR. In conclusion, our study provides a scientific basis for fucoidan as a functional food for modulating the gut microbiota and protecting against obesity.
KEYWORD
fucoidan, gut microbiota, inflammation, obesity prevention, quantitative real-time PCR
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