Molecular characterization of enterococci harboring genotype and phenotype incongruence related to glycopeptide resistance isolated in Brazilian hospitals
Mem. Inst. Oswaldo Cruz
;
103(3): 301-305, May 2008. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-485225
ABSTRACT
Three Enterococcus faecalis and one Enterococcus faecium strains were characterized by plasmid profile, pulsed-field gel electrophoresis (PFGE) and determination of antimicrobial minimal inhibitory concentrations. VanA elements were characterized by Long PCR, overlapping PCR and DNA sequencing. Enterococcal strains showed resistance to vancomycin and harbored the vanA gene, and three these were teicoplanin susceptible while one showed intermediate resistance to teicoplanin. Two E. faecalis strains showed indistinguishable PFGE profile while the third was unrelated. E. faecalis strains showed a deletion in the right terminal region of the Tn1546-like element. The E. faecium strain showed an insertion element in the vanXY intergenic region. Mutations in VanA elements were not found. Rearrangements in the VanA element could be responsible for incongruities in genotype and phenotype in these strains.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Vancomycine
/
Enterococcus faecium
/
Enterococcus faecalis
/
Téicoplanine
/
Antibactériens
Limites du sujet:
Humains
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2008
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Instituto Adolfo Lutz/BR
/
Universidade de São Paulo/BR
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