Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/36198 http://dx.doi.org/10.1186/1471-2334-13-166 |
Resumo: | Background: Early identification of pathogens and antimicrobial resistance in bloodstream infections (BSIs) decreases morbidity and mortality, particularly in immunocompromised patients. the aim of the present study was to compare real-time polymerase chain reaction (PCR) with commercial kits for detection of 17 pathogens from blood culture (BC) and 10 antimicrobial resistance genes.Methods: A total of 160 BCs were taken from bone marrow transplant patients and screened with Gram-specific probes by multiplex real-time PCR and 17 genus-specific sequences using TaqMan probes and blaSHV, blaTEM, blaCTX, blaKPC, blaIMP, blaSPM, blaVIM, vanA, vanB, and mecA genes by SYBR Green.Results: Twenty-three of 33 samples identified by phenotypic testing were concordantly positive by BC and real-time PCR. Pathogen identification was discordant in 13 cases. in 12 of 15 coagulase-negative staphylococci, the mecA gene was detected and four Enterococcus spp. were positive for vanA. Two blaCTX and three blaSHV genes were found by quantitative PCR. the blaKPC and metallo-beta-lactamase genes were not detected. Five fungal species were identified only by real-time PCR.Conclusions: Real-time PCR could be a valuable complementary tool in the management of BSI in bone marrow transplants patients, allowing identification of pathogens and antimicrobial resistance genes. |
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Menezes, Liana Carballo [UNIFESP]Rocchetti, Talita Trevizani [UNIFESP]Bauab, Karen de Castro [UNIFESP]Cappellano, Paola [UNIFESP]Quiles, Milene Goncalves [UNIFESP]Carlesse, Fabianne [UNIFESP]Oliveira, José Salvador Rodrigues de [UNIFESP]Pignatari, Antonio Carlos Campos [UNIFESP]Universidade Federal de São Paulo (UNIFESP)GRAACC Grp Apoio Adolescente & Crianca Canc Suppo2016-01-24T14:31:34Z2016-01-24T14:31:34Z2013-04-05Bmc Infectious Diseases. London: Biomed Central Ltd, v. 13, 7 p., 2013.1471-2334http://repositorio.unifesp.br/handle/11600/36198http://dx.doi.org/10.1186/1471-2334-13-166WOS000317237700001.pdf10.1186/1471-2334-13-166WOS:000317237700001Background: Early identification of pathogens and antimicrobial resistance in bloodstream infections (BSIs) decreases morbidity and mortality, particularly in immunocompromised patients. the aim of the present study was to compare real-time polymerase chain reaction (PCR) with commercial kits for detection of 17 pathogens from blood culture (BC) and 10 antimicrobial resistance genes.Methods: A total of 160 BCs were taken from bone marrow transplant patients and screened with Gram-specific probes by multiplex real-time PCR and 17 genus-specific sequences using TaqMan probes and blaSHV, blaTEM, blaCTX, blaKPC, blaIMP, blaSPM, blaVIM, vanA, vanB, and mecA genes by SYBR Green.Results: Twenty-three of 33 samples identified by phenotypic testing were concordantly positive by BC and real-time PCR. Pathogen identification was discordant in 13 cases. in 12 of 15 coagulase-negative staphylococci, the mecA gene was detected and four Enterococcus spp. were positive for vanA. Two blaCTX and three blaSHV genes were found by quantitative PCR. the blaKPC and metallo-beta-lactamase genes were not detected. Five fungal species were identified only by real-time PCR.Conclusions: Real-time PCR could be a valuable complementary tool in the management of BSI in bone marrow transplants patients, allowing identification of pathogens and antimicrobial resistance genes.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Federal de São Paulo, Special Clin Microbiol Lab LEMC, UNIFESP, São Paulo, BrazilFed Univ São Paulo UNIFESP, Div Infect Dis, São Paulo, BrazilGRAACC Grp Apoio Adolescente & Crianca Canc Suppo, São Paulo, BrazilFed Univ São Paulo UNIFESP, Div Hematol, São Paulo, BrazilUniversidade Federal de São Paulo, Special Clin Microbiol Lab LEMC, UNIFESP, São Paulo, BrazilFed Univ São Paulo UNIFESP, Div Infect Dis, São Paulo, BrazilFed Univ São Paulo UNIFESP, Div Hematol, São Paulo, BrazilCNPq: 141636/2008-4Web of Science7engBiomed Central LtdBmc Infectious DiseasesBone marrow transplantsReal-time polymerase chain reactionAntibiotic resistance genesBloodstream infectionsDiagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infectionsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000317237700001.pdfapplication/pdf194935${dspace.ui.url}/bitstream/11600/36198/1/WOS000317237700001.pdfa43a4a03158fb442047e42b7ba6e8fcbMD51open accessTEXTWOS000317237700001.pdf.txtWOS000317237700001.pdf.txtExtracted texttext/plain31371${dspace.ui.url}/bitstream/11600/36198/2/WOS000317237700001.pdf.txt59544926e9dc281b65061a9504d2a930MD52open access11600/361982021-10-05 21:53:32.668open accessoai:repositorio.unifesp.br:11600/36198Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-05-25T12:17:11.797307Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
title |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
spellingShingle |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections Menezes, Liana Carballo [UNIFESP] Bone marrow transplants Real-time polymerase chain reaction Antibiotic resistance genes Bloodstream infections |
title_short |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
title_full |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
title_fullStr |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
title_full_unstemmed |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
title_sort |
Diagnosis by real-time polymerase chain reaction of pathogens and antimicrobial resistance genes in bone marrow transplant patients with bloodstream infections |
author |
Menezes, Liana Carballo [UNIFESP] |
author_facet |
Menezes, Liana Carballo [UNIFESP] Rocchetti, Talita Trevizani [UNIFESP] Bauab, Karen de Castro [UNIFESP] Cappellano, Paola [UNIFESP] Quiles, Milene Goncalves [UNIFESP] Carlesse, Fabianne [UNIFESP] Oliveira, José Salvador Rodrigues de [UNIFESP] Pignatari, Antonio Carlos Campos [UNIFESP] |
author_role |
author |
author2 |
Rocchetti, Talita Trevizani [UNIFESP] Bauab, Karen de Castro [UNIFESP] Cappellano, Paola [UNIFESP] Quiles, Milene Goncalves [UNIFESP] Carlesse, Fabianne [UNIFESP] Oliveira, José Salvador Rodrigues de [UNIFESP] Pignatari, Antonio Carlos Campos [UNIFESP] |
author2_role |
author author author author author author author |
dc.contributor.institution.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) GRAACC Grp Apoio Adolescente & Crianca Canc Suppo |
dc.contributor.author.fl_str_mv |
Menezes, Liana Carballo [UNIFESP] Rocchetti, Talita Trevizani [UNIFESP] Bauab, Karen de Castro [UNIFESP] Cappellano, Paola [UNIFESP] Quiles, Milene Goncalves [UNIFESP] Carlesse, Fabianne [UNIFESP] Oliveira, José Salvador Rodrigues de [UNIFESP] Pignatari, Antonio Carlos Campos [UNIFESP] |
dc.subject.eng.fl_str_mv |
Bone marrow transplants Real-time polymerase chain reaction Antibiotic resistance genes Bloodstream infections |
topic |
Bone marrow transplants Real-time polymerase chain reaction Antibiotic resistance genes Bloodstream infections |
description |
Background: Early identification of pathogens and antimicrobial resistance in bloodstream infections (BSIs) decreases morbidity and mortality, particularly in immunocompromised patients. the aim of the present study was to compare real-time polymerase chain reaction (PCR) with commercial kits for detection of 17 pathogens from blood culture (BC) and 10 antimicrobial resistance genes.Methods: A total of 160 BCs were taken from bone marrow transplant patients and screened with Gram-specific probes by multiplex real-time PCR and 17 genus-specific sequences using TaqMan probes and blaSHV, blaTEM, blaCTX, blaKPC, blaIMP, blaSPM, blaVIM, vanA, vanB, and mecA genes by SYBR Green.Results: Twenty-three of 33 samples identified by phenotypic testing were concordantly positive by BC and real-time PCR. Pathogen identification was discordant in 13 cases. in 12 of 15 coagulase-negative staphylococci, the mecA gene was detected and four Enterococcus spp. were positive for vanA. Two blaCTX and three blaSHV genes were found by quantitative PCR. the blaKPC and metallo-beta-lactamase genes were not detected. Five fungal species were identified only by real-time PCR.Conclusions: Real-time PCR could be a valuable complementary tool in the management of BSI in bone marrow transplants patients, allowing identification of pathogens and antimicrobial resistance genes. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-04-05 |
dc.date.accessioned.fl_str_mv |
2016-01-24T14:31:34Z |
dc.date.available.fl_str_mv |
2016-01-24T14:31:34Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Bmc Infectious Diseases. London: Biomed Central Ltd, v. 13, 7 p., 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.unifesp.br/handle/11600/36198 http://dx.doi.org/10.1186/1471-2334-13-166 |
dc.identifier.issn.none.fl_str_mv |
1471-2334 |
dc.identifier.file.none.fl_str_mv |
WOS000317237700001.pdf |
dc.identifier.doi.none.fl_str_mv |
10.1186/1471-2334-13-166 |
dc.identifier.wos.none.fl_str_mv |
WOS:000317237700001 |
identifier_str_mv |
Bmc Infectious Diseases. London: Biomed Central Ltd, v. 13, 7 p., 2013. 1471-2334 WOS000317237700001.pdf 10.1186/1471-2334-13-166 WOS:000317237700001 |
url |
http://repositorio.unifesp.br/handle/11600/36198 http://dx.doi.org/10.1186/1471-2334-13-166 |
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eng |
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Bmc Infectious Diseases |
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dc.publisher.none.fl_str_mv |
Biomed Central Ltd |
publisher.none.fl_str_mv |
Biomed Central Ltd |
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