Premium
Resveratrol Inhibits Periodontal Pathogens In Vitro
Author(s) -
O'Connor D. J.,
Wong R. W. K.,
Rabie A. B. M.
Publication year - 2011
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.3501
Subject(s) - resveratrol , serial dilution , microbiology and biotechnology , agar plate , phytoalexin , antimicrobial , bacteria , in vitro , anaerobic bacteria , agar , phytochemical , chemistry , biology , biochemistry , medicine , genetics , alternative medicine , pathology
The gram‐negative anaerobic bacteria A. actinomycetemcomitans ( Aa ) and P. gingivalis ( Pg ) are key components in the aetiology of periodontal disease, and associated hard‐tissue destruction. Resveratrol is a phytoalexin, produced naturally by several plants when under attack by bacterial or fungal pathogens. It is found in many foods including mulberries, peanuts and the skin of labrusca and muscadine grapes. The objective of this study was to evaluate the effect of resveratrol on the in vitro growth of periodontal pathogens Aa and Pg . For comparison, resveratrol's effect on a variety of other oral microorganisms was also evaluated. Resveratrol demonstrates a poor solubility in water, thus different concentrations of resveratrol in the solvent dimethyl sulphoxide (DMSO) were added to calibrated suspensions of Aa and Pg . As a control, a parallel series of dilutions containing the vehicle DMSO alone was made to measure the effect of the solvent. Minimum inhibitory concentrations of the periodontal pathogens were calculated. All suspensions were incubated for 1, 3, 6 and 24 h in an anaerobic chamber at 37 °C. At each time interval, selected dilutions from each culture broth were plated on blood agar plates. Colonies appearing on blood agar plates were visually counted at 3 days for Aa , and at 5 days for Pg . The periodontal bacteria showed a significant decrease ( p < 0.05) in viable counts after 1 h, whilst no colony forming units could be observed after 24 h. The results suggest that resveratrol possesses significant antimicrobial properties on periodontal pathogens in vitro . Copyright © 2011 John Wiley & Sons, Ltd.