Suppression Of Obesity And Inflammation By Polysaccharide From Sporoderm-Broken Spore Of Ganoderma Lucidum Via Gut Microbiota Regulation
CARBOHYDRATE POLYMERS(2021)
Abstract
Ganoderma lucidum has been shown to have anti-obesity effects. However, polysaccharide extracted from the sporoderm-broken spores of Ganoderma lucidum (BSGLP) against obesity and its underlying mechanisms have never been reported. In the current study, we showed that BSGLP inhibited high-fat diet (HFD)-induced obesity, hyperlipidemia, inflammation, and fat accumulation in C57BL/6 J mice. BSGLP improved HFD-induced gut microbiota dysbiosis, maintained intestinal barrier function, increased short-chain fatty acids production and GPR43 expression, ameliorated endotoxemia, manifested by reduced serum lipopolysaccharide level, and increased ileum expression of tight junction proteins and antimicrobial peptides. Fecal microbiota transplantation study confirmed that BSGLP-induced microbiota change is responsible, at least in part, for obesity inhibition. Besides, BSGLP notably alleviated HFD-induced upregulation of TLR4/Myd88/NF-kappa B signaling pathway in adipose tissue. Collectively, our study showed for the first time that BSGLP might be used as a prebiotic agent to inhibit obesity and hyperlipidemia through modulating inflammation, gut microbiota, and gut barrier function.
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Key words
Obesity, Gut microbiota, Endotoxemia, Sporoderm-broken spores, Ganoderma lucidum polysaccharide
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