Article

Enterotoxigenic and nontoxigenic Bacteroides fragilis strains isolated in Brazil

Registro en:
MIRANDA, Karla R. et al. Enterotoxigenic and nontoxigenic Bacteroides fragilis strains isolated in Brazil. Mem Inst Oswaldo Cruz, v.103, n.7, p.734-735, Nov. 2008.
0074-0276
1678-8060
Autor
Miranda, Karla R.
Dias, Mariana F.
Guimarães, Priscilla L. S.
Boente, Renata F.
Pauer, Heidi
Ramos, Priscila Z.
Falcão, Laís S.
Ferreira, Eliane de O.
Balassiano, Ilana T.
Ferreira, Livia Q.
Santos Filho, Joaquim dos
Paula, Geraldo R. de
Antunes, Eduardo N. F.
Avelar, Katia E. S.
Domingues, Regina M. C. P.
Institución
Resumen
The presence of enterotoxigenic Bacteroides fragilis and nontoxigenic B. fragilis (NTBF) among 109 strains isolated from 1980-2008 in Brazil were investigated by PCR. One strain, representing 0.9% of the total analyzed strains, harbored the bft gene which was identified as bft-1 isoform based on PCR-RFLP and sequencing. Fortynine strains (44.9%) exhibited the NTBF pattern III which possesses the flanking region required for pathogenicity island acquisition in which the bft gene is codified. These data reinforce the potential of B. fragilis as an emerging enteropathogen in our country.
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