Detection of OXA-370, an OXA-48-related class D β-lactamase, in Enterobacter hormaechei from Brazil.

نویسندگان

  • Jorge L M Sampaio
  • Vanessa B Ribeiro
  • Juliana Coutinho Campos
  • Franciéli P Rozales
  • Cibele M Magagnin
  • Diego R Falci
  • Renato Cassol F da Silva
  • Micheline G Dalarosa
  • Daniela I Luz
  • Fabiane J Vieira
  • Laura C Antochevis
  • Afonso Luis Barth
  • Alexandre P Zavascki
چکیده

Jorge L. M. Sampaio, Vanessa B. Ribeiro, Juliana Coutinho Campos, Franciéli P. Rozales, Cibele M. Magagnin, Diego R. Falci, Renato Cassol F. da Silva, Micheline G. Dalarosa, Daniela I. Luz, Fabiane J. Vieira, Laura C. Antochevis, Afonso Luis Barth, Alexandre P. Zavascki Departamento de Análises Clínicas e Toxicológicas—Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil; Microbiologia—Fleury Medicina e Saúde, São Paulo, Brazil; Laboratório de Pesquisa em Resistência Bacteriana—LABRESIS, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Programa de PósGraduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Infection Control Service, Hospital Nossa Senhora da Conceição, Porto Alegre, Brazil; Infectious Diseases Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Department of Internal Medicine, Medical School, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil

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Role of class 1 Integron in prevalence extended-spectrum beta-lactamases of class D (oxa-2 , oxa-10) along with determining antibiotic resistance pattern in Pseudomonas strains isolated from clinical specimens

Aim and Background:Eradicating infections is difficult due to the presence of genes on the introns, especially the beta-lactamase enzymes and  The importance of their resistance is high.The purpose of this study was to determine the beta-lactamase genes (OXA-2 , OXA-10) , Integron class 1  and antibiotic resistance. Material and methods:In this cross sectional descriptive study, 120 Pseudomona...

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OXA-48-like carbapenemases: the phantom menace.

OXA-48-type carbapenem-hydrolysing class D β-lactamases are increasingly reported in enterobacterial species. To date, six OXA-48-like variants have been identified, with OXA-48 being the most widespread. They differ by a few amino acid substitutions or deletions (one to five amino acids). The enzymes hydrolyse penicillins at a high level and carbapenems at a low level, sparing broad-spectrum c...

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Kinetics of avibactam inhibition against Class A, C, and D β-lactamases.

Avibactam is a non-β-lactam β-lactamase inhibitor with a spectrum of activity that includes β-lactamase enzymes of classes A, C, and selected D examples. In this work acylation and deacylation rates were measured against the clinically important enzymes CTX-M-15, KPC-2, Enterobacter cloacae AmpC, Pseudomonas aeruginosa AmpC, OXA-10, and OXA-48. The efficiency of acylation (k2/Ki) varied across ...

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Heterogeneous hydrolytic features for OXA-48-like β-lactamases.

OBJECTIVES Carbapenem-hydrolysing class D β-lactamases of the OXA-48 type are increasingly reported from Enterobacteriaceae. β-Lactamase OXA-48 hydrolyses penicillins very efficiently, but carbapenems only weakly and spares broad-spectrum cephalosporins. Recently, diverse OXA-48-like β-lactamases have been identified worldwide (OXA-162, OXA-181, OXA-163, OXA-204 and OXA-232). They differ by few...

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OXA-253, a variant of the carbapenem-hydrolyzing class D β-lactamase OXA-143 in Acinetobacter baumannii.

The carbapenem-hydrolyzing class D β-lactamase OXA-253 was identified in an Acinetobacter baumannii clinical isolate belonging to sequence type 113 (ST113) in Brazil. OXA-253 shares 93.8% amino acid identity with OXA-143. The blaOXA-253 gene is located on a ca. 20-kb plasmid. The genetic environment of the blaOXA-253 gene shares the highest identity with ubiquitous GR2 group plasmids usually ca...

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عنوان ژورنال:
  • Antimicrobial agents and chemotherapy

دوره 58 6  شماره 

صفحات  -

تاریخ انتشار 2014