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Abstract Title:

Inhibitory Effect of Depolymerized Sulfated Galactans from Marine Red Algae on the Growth and Adhesion of Diarrheagenic.

Abstract Source:

Mar Drugs. 2019 Dec 10 ;17(12). Epub 2019 Dec 10. PMID: 31835446

Abstract Author(s):

Yixiang Liu, Wenqiang Liu, Yanbo Wang, Yu Ma, Ling Huang, Chao Zou, Donghui Li, Min-Jie Cao, Guang-Ming Liu

Article Affiliation:

Yixiang Liu

Abstract:

Active polysaccharides as safe and natural polymers against bacterial diarrhea have been reconsidered as an alternative to antibiotics. This work investigated the inhibiting effect of depolymerized sulfated galactans fromandon the growth and adhesion of diarrheagenic enterotoxigenic(ETEC) K88. Results showed that the sulfated polysaccharides with molecular weight distribution≤20.0 kDa exhibited antibacterial activity against ETEC K88. A structure-activity study revealed that the anti-ETEC K88 activity of sulfated polysaccharides is strictly determined by their molecular weight distribution, sulfate group content, and monosaccharide composition. In addition, the promoted nucleic acid release and the fluorescence quenching of membrane proteins were observed after the treatment with selected polysaccharides. Scanning electron microscopy further confirmed that the depolymerized sulfated galactans can effectively inhibit ETEC K88 adhesion. In conclusion, depolymerized sulfated galactans exhibited an inhibitory effect on the growth and adhesion of ETEC K88.

Study Type : In Vitro Study

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Sayer Ji
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