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Mar Drugs. 2019 Aug 1;17(8). pii: E455. doi: 10.3390/md17080455.

Long-Chain Bases from Sea Cucumber Alleviate Obesity by Modulating Gut Microbiota.

Author information

1
Innovation Application Institute, Zhejiang Ocean University, Zhoushan 316022, China.
2
Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, China.
3
College of Food Science, Qingdao University, Qingdao 266071, China. xx526916212@126.com.
4
Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, China. sulaijin@126.com.
5
Zhejiang Marine Development Research Institute, Zhoushan 316021, China.

Abstract

This study evaluated the effects of long-chain bases from sea cucumber (SC-LCBs) on modulation of the gut microbiota and inhibition of obesity in high fat diet-fed mice. Results showed that SC-LCBs exerted significant antiobese effects, which were associated with the inhibition of hyperglycemia and lipid accumulation. SC-LCBs also regulated serum adipocytokines toward to normal levels. SC-LCBs caused significant decreases in Firmicutes, Actinobacteria phylum, and obesity-related bacteria (Desulfovibro, Bifidobacterium, Romboutsia etc. genus). SC-LCBs also elevated Bacteroidetes, Proteobacteria, Verrucomicrobia phylum, and short chain fatty acids (SCFAs)-producing bacteria (Bacteroides, Lactobacillus, Lachnospiraceae_NK4A136_group etc. genus). Moreover, serum and fecal lipoplysaccharide (LPS) concentrations and its dependent toll-line receptor 4 pathway were inhibited by SC-LCBs treatment. SC-LCBs caused increases in fecal SCFAs and their mediated G-protein-coupled receptors proteins. These suggest that SC-LCBs alleviate obesity by altering gut microbiota. Thus, it sought to indicate that SC-LCBs can be developed as food supplement for the obesity control and the human gut health.

KEYWORDS:

gut microbiota; lipopolysaccharide; long-chain bases; obesity; sea cucumber; short chain fatty acids

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