SciELO - Scientific Electronic Library Online

 
vol.56 número2First record of partial albinism in two catfish species of Genidens (Siluriformes: Ariidae) in an estuary of Southern BrazilProbiotics association in the suckling and nursery in piglets challenged with Salmonella typhimurium índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Brazilian Archives of Biology and Technology

versão impressa ISSN 1516-8913

Resumo

BRAGA, Miula Portelinha et al. Genotypic diversity and virulence factors of Streptococcus mutans in caries-free and caries-active individuals. Braz. arch. biol. technol. [online]. 2013, vol.56, n.2, pp.241-248. ISSN 1516-8913.  https://doi.org/10.1590/S1516-89132013000200009.

The objective of this study was to analyze the genotypic diversity, frequency of serotypes and the detection of mutacins from Streptococcus mutans isolates in caries-free and caries-active individuals.A total of 260 S. mutans isolated from 28 individuals with and without dental caries were subjected to AP-PCR and PCR screening of glucosyltransferase B, mutacin and serotype genes, which showed the presence of. 70 different genotypes. There was no statistically significant association between the presence of genes for serotypes and mutacins with dental caries. However, there was a statistically significant and a strong association between the higher genotypic diversity in the subjects with caries (r = 0.72, p = 0.001). There was an increase in the number of genotypes with increasing age (p <0.01).

Palavras-chave : Dental caries; genotypic diversity; mutacin; serotype; Streptococcus mutans.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons