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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Anti-biofilm activity ofα-mangostin isolated from Garcinia mangostana L.

Abstract Source:

Z Naturforsch C. 2015 Nov 1 ;70(11-12):313-8. PMID: 26618571

Abstract Author(s):

Phuong T M Nguyen, Bac H Vo, Nhung T Tran, Quyen D Van

Article Affiliation:

Phuong T M Nguyen

Abstract:

This study was carried out to further examine the anti-biofilm activity ofα-mangostin (αMG) isolated from Garcinia mangostana L. grown in Vietnam, against a strongly biofilm producing Streptococcus mutans, a major causative agent of dental caries. The obtained data indicated that topical applications (twice-daily, 60 s exposure each) of 150 μM αMG during biofilm formation on the surfaces of hydroxyapatite disks (sHA) by S. mutans UA159 resulted in 30.7% reduction in biofilm accumulation after 68 h of growth. The treatment did not affect the viability of S. mutans cells in the biofilms. The surface activities of two key enzymes responsible for biofilm formation,i.e. the glycosyltransferases GtfB and GtfC, were reduced by 20 and 35%, respectively (vs. vehicle control, P<0.05). Interestingly,αMG specifically targeted S. mutans in mixed biofilms, resulting in the decrease of the S. mutans population and total biofilm biomass. αMG was also found to accumulate within the biofilm of S. mutans up to 4.5 μg/biofilm, equal to a concentration of>10μM/biofilm. In conclusion, this study confirmed anti-biofilm activity of αMG against S. mutans. A brief exposure to αMG may suppress biofilm formation by targeting key enzymes imvolved in biofilm formation.

Study Type : In Vitro Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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