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PCR-RFLP of 16S ribosomal DNA to confirm the identification of Enterococcus gallinarum and Enterococcus casseliflavus isolated from clinical and food samples / PCR-RFLP do 16S DNA ribossomal para confirmar a identificação de Enterococcus gallinarum e Enterococcus casseliflavus isolados de amostras clínicas e alimentares
Medeiros, Aline Weber; d'Azevedo, Pedro; Pereira, Rebeca Inhoque; Cassenego, Ana Paula; Van Der Sand, Sueli; Frazzon, Jeverson; Frazzon, Ana Paula Guedes.
  • Medeiros, Aline Weber; Federal University of Rio Grande do Sul. Porto Alegre. BR
  • d'Azevedo, Pedro; Federal Health Sciences University of Porto Alegre. Microbiology Department. Department of Basic Health Sciences. Porto Alegre. BR
  • Pereira, Rebeca Inhoque; Federal University of Rio Grande do Sul. Microbiology Department. Porto Alegre. BR
  • Cassenego, Ana Paula; Federal University of Rio Grande do Sul. Porto Alegre. BR
  • Van Der Sand, Sueli; Federal University of Rio Grande do Sul. Microbiology Department. Porto Alegre. BR
  • Frazzon, Jeverson; Federal University of Rio Grande do Sul. Science and Food Technology Institute. Porto Alegre. BR
  • Frazzon, Ana Paula Guedes; Federal University of Rio Grande do Sul. Microbiology Department. Porto Alegre. BR
Rev. Soc. Bras. Med. Trop ; 43(1): 100-101, Jan.-Feb. 2010. tab, ilus
Article in English | LILACS | ID: lil-540524
ABSTRACT

INTRODUCTION:

This study aimed to confirm the identification of Enterococcus gallinarum and Enterococcus casseliflavus isolated from clinical and food samples by PCR-RFLP.

METHODS:

Fifty-two strains identified by conventional biochemical exams were submitted to PCR amplification and digested with HinfI. Only 20 (38.5 percent) of the 52 strains showed a DNA pattern expected for E. gallinarum and E. casseliflavus.

RESULTS:

Analysis of the results of this study showed that E. gallinarum and E. casseliflavus are occasionally erroneously identified and confirmed the potential application of 16S rDNA analysis for accurate identification of these species.

CONCLUSIONS:

A correct identification is important to distinguish between intrinsic and acquired vancomycin resistance.
RESUMO

INTRODUÇÃO:

O objetivo deste estudo foi confirmar a identificação de amostras clínicas e alimentos de Enterococcus gallinarum e Enterococcus casseliflavus por PCR-RFLP.

MÉTODOS:

Cinquenta e duas cepas identificadas por exames bioquímicos convencionais foram submetidos a amplificação por PCR e digestão com HinfI. Apenas 20 (38,5 por cento) das 52 amostras apresentaram um padrão de DNA esperado E. gallinarum e E. casseliflavus.

RESULTADOS:

Analise dos resultados deste estudo demonstraram que, algumas vezes E. gallinarum e E. casseliflavus são erroneamente identificados e confirmaram a potencial aplicação da análise do 16S rDNA para identificação exata destas espécies.

CONCLUSÕES:

A correta identificação é importante a fim de distinguir entre resistência intrínseca e adquirida à vancomicina.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: DNA, Bacterial / DNA, Ribosomal / Bacterial Typing Techniques / Enterococcus Type of study: Diagnostic study Limits: Humans Language: English Journal: Rev. Soc. Bras. Med. Trop Journal subject: Tropical Medicine Year: 2010 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal Health Sciences University of Porto Alegre/BR / Federal University of Rio Grande do Sul/BR

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Full text: Available Index: LILACS (Americas) Main subject: DNA, Bacterial / DNA, Ribosomal / Bacterial Typing Techniques / Enterococcus Type of study: Diagnostic study Limits: Humans Language: English Journal: Rev. Soc. Bras. Med. Trop Journal subject: Tropical Medicine Year: 2010 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal Health Sciences University of Porto Alegre/BR / Federal University of Rio Grande do Sul/BR