The in vitro study of ursolic acid and oleanolic acid inhibiting cariogenic microorganisms as well as biofilm
L Zhou, Y Ding, W Chen, P Zhang, Y Chen… - Oral diseases, 2013 - Wiley Online Library
L Zhou, Y Ding, W Chen, P Zhang, Y Chen, X Lv
Oral diseases, 2013•Wiley Online LibraryObjective The aim of this study was to examine the effect of ursolic acid (UA) and oleanolic
acid (OA), triterpenoid compounds that are isolated from many edible and medicinal plants,
on cariogenic microorganisms and biofilms. Methods A microtitre plate dilution assay was
used to determine the minimum inhibitory concentration (MIC) and minimum bactericidal
concentration (MBC) of UA and OA against two A ctinomyces spp. and four S treptococcus
spp. The antibacterial activity of UA and OA was assessed by crystal violet staining …
acid (OA), triterpenoid compounds that are isolated from many edible and medicinal plants,
on cariogenic microorganisms and biofilms. Methods A microtitre plate dilution assay was
used to determine the minimum inhibitory concentration (MIC) and minimum bactericidal
concentration (MBC) of UA and OA against two A ctinomyces spp. and four S treptococcus
spp. The antibacterial activity of UA and OA was assessed by crystal violet staining …
Objective
The aim of this study was to examine the effect of ursolic acid (UA) and oleanolic acid (OA), triterpenoid compounds that are isolated from many edible and medicinal plants, on cariogenic microorganisms and biofilms.
Methods
A microtitre plate dilution assay was used to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of UA and OA against two Actinomyces spp. and four Streptococcus spp. The antibacterial activity of UA and OA was assessed by crystal violet staining, scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM).
Results
UA and OA displayed differential antibacterial activities against the six tested bacteria, with UA showing greater antibacterial activity than OA. Furthermore, the two drugs had greater antibacterial activity against Actinomyces spp. than Streptococcus spp. UA and OA at 1/4 MIC can reduce bacterial biofilm formation, whereas higher UA concentrations displayed antibacterial activity against Actinomyces viscosus and Streptococcus mutans in mature biofilms. For instance, 2.0 mg ml−1 UA was sufficient to kill an A. viscosus biofilm.
Conclusions
UA and OA inhibit the growth of cariogenic microorganisms, which suggests that UA and OA have considerable potential as antibacterial agents for dental caries prevention.
Wiley Online Library以上显示的是最相近的搜索结果。 查看全部搜索结果