Detection of Streptococcus mutans by PCR amplification of spaP gene
نویسندگان
چکیده
منابع مشابه
spaP gene of Streptococcus mutans in dental plaque and its relationship with early childhood caries.
AIM Streptococcus mutans and Streptococcus sobrinus are the main pathogens associated with the development of dental caries in humans. Recently, the real-time polymerase chain reaction (qPCR-TR) has been used for fast and exact quantification of these bacteria species. This molecular biology method has made the detection of these bacteria in saliva and dental plaque possible; additionally, i...
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a problem of computer vision applications is to detect regions of interest under dif- ferent imaging conditions. the state-of-the-art maximally stable extremal regions (mser) detects affine covariant regions by applying all possible thresholds on the input image, and through three main steps including: 1) making a component tree of extremal regions’ evolution (enumeration), 2) obtaining region ...
Virulence of a spaP mutant of Streptococcus mutans in a gnotobiotic rat model.
Streptococcus mutans, the principal etiologic agent of dental caries in humans, possesses a variety of virulence traits that enable it to establish itself in the oral cavity and initiate disease. A 185-kDa cell surface-localized protein known variously as antigen I/II, antigen B, PAc, and P1 has been postulated to be a virulence factor in S. mutans. We showed previously that P1 expression is ne...
متن کاملA mechanism for extremely weak SpaP-expression in Streptococcus mutans strain Z1
BACKGROUND Streptococcus mutans surface-protein antigen (SpaP, PAc, or antigen I/II) has been well known to play an important role in initial attachment to tooth surfaces. However, strains with weak SpaP-expression were recently reported to be found in natural populations of S. mutans. The S. mutans gbpC-negative strain Z1, which we previously isolated from saliva and plaque samples, apparently...
متن کاملModulation of Biofilm Exopolysaccharides by the Streptococcus mutans vicX Gene
The cariogenic pathogen Streptococcus mutans effectively utilizes dietary sucrose for the synthesis of exopolysaccharide, which act as a scaffold for its biofilm, thus contributing to its pathogenicity, environmental stress tolerance, and antimicrobial resistance. The two-component system VicRK of S. mutans regulates a group of virulence genes that are associated with biofilm matrix synthesis. ...
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 1994
ISSN: 0022-2615,1473-5644
DOI: 10.1099/00222615-41-4-231