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Título : | STAR gene restriction profile analysis in epidemiological typing of methicillin-resistant Staphylococcus aureus: description of the new method and comparison with other polymerase chain reaction (PCR)-based methods | Autor : | Quelle, Liliana S Corso, Alejandra Galas, Marcelo F. Sordelli, Daniel O. |
Palabras clave : | Staphylococcus aureus | Fecha de publicación : | nov-2003 | Editorial : | Elsevier | Journal: | Diagnostic microbiology and infectious disease | Resumen : | A method based on restriction profile analysis of the STAR repetitive element PCR (STAR-RP PCR) product obtained by digestion with AluI and Tru9I was developed for typing methicillin resistant Staphylococcus aureus (MRSA). We evaluated a well defined collection of MRSA from Argentina, previously characterized by PFGE (pulsed field gel electrophoresis) of chromosomal SmaI digests and hybridization with DNA probes for probes ClaI-mecA and ClaI-Tn554. We comparatively evaluated STAR-RP analysis with other PCR based methods such as Inter IS256-PCR, Rep-MP3 PCR and Coa-RP. The discriminatory power (D) of STAR-RP (0.86) was similar to that of PFGE (0.84) at the type level. Comparable results were obtained with Inter IS256 PCR (0.85) and Rep-MP3 PCR (0.80). A lower value (0.74) was obtained for Coa-RP. An excellent reproducibility (100%) of STAR-RP was observed. Good concordance between STAR-RP and other molecular typing methods was found for MRSA isolates (n = 39). STAR-RP typing showed 87% concordance with mecA::Tn554::PFGE, 87% with Inter IS256 PCR and 71% with Rep-MP3 typing. STAR-RP is suggested as an adequate molecular typing assay for MRSA epidemiologic assessment. |
Descripción : | Fil: Quelle, Liliana S. Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires; Argentina. Fil: Corso, Alejandra. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Galas, Marcelo F. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Sordelli, Daniel O. Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires; Argentina. |
URI : | http://sgc.anlis.gob.ar/handle/123456789/1985 | ISSN : | 0732-8893 | DOI: | 10.1016/s0732-8893(03)00137-8 | Derechos: | Closed Access |
Aparece en las colecciones: | Publicaciones INEI |
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