Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses

A prospective analysis on β-lactam resistance mechanisms and β-lactamase prevalence was conducted on Prevotella intermedia and Prevotella nigrescens recovered from patients with chronic periodontitis and peritonsillar abscesses. Both phenotypic and genotypic methods were performed to characterize th...

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Detalles Bibliográficos
Autores: Fernández Canigia, Liliana, Cejas, Daniela, Gutkind, Gabriel Osvaldo, Radice, Marcela Alejandra
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/37630
Acceso en línea:http://hdl.handle.net/11336/37630
Access Level:acceso abierto
Palabra clave:Cfxa
Periodontitis
Peritonsillar Abscesses
Prevotella Intermedia
Prevotella Nigrescens
Β-Lactamases
https://purl.org/becyt/ford/3.3
https://purl.org/becyt/ford/3
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spelling Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscessesFernández Canigia, LilianaCejas, DanielaGutkind, Gabriel OsvaldoRadice, Marcela AlejandraCfxaPeriodontitisPeritonsillar AbscessesPrevotella IntermediaPrevotella NigrescensΒ-Lactamaseshttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3A prospective analysis on β-lactam resistance mechanisms and β-lactamase prevalence was conducted on Prevotella intermedia and Prevotella nigrescens recovered from patients with chronic periodontitis and peritonsillar abscesses. Both phenotypic and genotypic methods were performed to characterize the β-lactamases, their coding genes and their genetic contexts. Overall, β-lactamase production was observed in 64% (16/25) P.intermedia and 23.8% (5/21) P.nigrescens (p<0.01). Besides higher β-lactamase production rates were observed in P.intermedia (8/16) than in P.nigrescens (2/16) recovered from chronic periodontitis, almost all isolates from peritonsillar abscesses were producers (8/9 and 3/3, respectively). cfxA, but not cepA and cblA, was detected in those isolates, which were previously categorized as β-lactamase producers. CfxA producing isolates displayed higher β-lactam MICs than non-producers in both species. The most frequent allele was cfxA2, followed by cfxA3 and a new allelic variant named cfxA6. The analysis of the downstream flanking region in the three cfxA variants revealed the association with mobA of Tn. 4555, suggesting their localization in a mobilizable element. β-lactam resistance and cfxA carriage prevalence seems to be not only related to the bacterial species but also to the infection site.Fil: Fernández Canigia, Liliana. Hospital Alemán; ArgentinaFil: Cejas, Daniela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Gutkind, Gabriel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Radice, Marcela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaElsevier2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37630Fernández Canigia, Liliana; Cejas, Daniela; Gutkind, Gabriel Osvaldo; Radice, Marcela Alejandra; Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses; Elsevier; Anaerobe; 33; 6-2015; 8-131075-9964CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1075996415000086info:eu-repo/semantics/altIdentifier/doi/10.1016/j.anaerobe.2015.01.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:56:43Zoai:ri.conicet.gov.ar:11336/37630instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 13:56:44.172CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
title Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
spellingShingle Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
Fernández Canigia, Liliana
Cfxa
Periodontitis
Peritonsillar Abscesses
Prevotella Intermedia
Prevotella Nigrescens
Β-Lactamases
https://purl.org/becyt/ford/3.3
https://purl.org/becyt/ford/3
title_short Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
title_full Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
title_fullStr Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
title_full_unstemmed Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
title_sort Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses
dc.creator.none.fl_str_mv Fernández Canigia, Liliana
Cejas, Daniela
Gutkind, Gabriel Osvaldo
Radice, Marcela Alejandra
author Fernández Canigia, Liliana
author_facet Fernández Canigia, Liliana
Cejas, Daniela
Gutkind, Gabriel Osvaldo
Radice, Marcela Alejandra
author_role author
author2 Cejas, Daniela
Gutkind, Gabriel Osvaldo
Radice, Marcela Alejandra
author2_role author
author
author
dc.subject.none.fl_str_mv Cfxa
Periodontitis
Peritonsillar Abscesses
Prevotella Intermedia
Prevotella Nigrescens
Β-Lactamases
https://purl.org/becyt/ford/3.3
https://purl.org/becyt/ford/3
topic Cfxa
Periodontitis
Peritonsillar Abscesses
Prevotella Intermedia
Prevotella Nigrescens
Β-Lactamases
https://purl.org/becyt/ford/3.3
https://purl.org/becyt/ford/3
description A prospective analysis on β-lactam resistance mechanisms and β-lactamase prevalence was conducted on Prevotella intermedia and Prevotella nigrescens recovered from patients with chronic periodontitis and peritonsillar abscesses. Both phenotypic and genotypic methods were performed to characterize the β-lactamases, their coding genes and their genetic contexts. Overall, β-lactamase production was observed in 64% (16/25) P.intermedia and 23.8% (5/21) P.nigrescens (p<0.01). Besides higher β-lactamase production rates were observed in P.intermedia (8/16) than in P.nigrescens (2/16) recovered from chronic periodontitis, almost all isolates from peritonsillar abscesses were producers (8/9 and 3/3, respectively). cfxA, but not cepA and cblA, was detected in those isolates, which were previously categorized as β-lactamase producers. CfxA producing isolates displayed higher β-lactam MICs than non-producers in both species. The most frequent allele was cfxA2, followed by cfxA3 and a new allelic variant named cfxA6. The analysis of the downstream flanking region in the three cfxA variants revealed the association with mobA of Tn. 4555, suggesting their localization in a mobilizable element. β-lactam resistance and cfxA carriage prevalence seems to be not only related to the bacterial species but also to the infection site.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/37630
Fernández Canigia, Liliana; Cejas, Daniela; Gutkind, Gabriel Osvaldo; Radice, Marcela Alejandra; Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses; Elsevier; Anaerobe; 33; 6-2015; 8-13
1075-9964
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37630
identifier_str_mv Fernández Canigia, Liliana; Cejas, Daniela; Gutkind, Gabriel Osvaldo; Radice, Marcela Alejandra; Detection and genetic characterization of β-lactamases in Prevotella intermedia and Prevotella nigrescens isolated from oral cavity infections and peritonsillar abscesses; Elsevier; Anaerobe; 33; 6-2015; 8-13
1075-9964
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1075996415000086
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.anaerobe.2015.01.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 15,812429

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