Oxa 143
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Clinical and microbiological characteristics of OXA-23- and OXA-143-producing Acinetobacter baumannii in ICU patients at a teaching hospital, Brazil
ABSTRACT Background: Carbapenem-resistant Acinetobacter baumannii (CRAb) is an important cause of nosocomial infections especially in intensive care units. This study aimed to assess clinical aspects and the genetic background of CRAb among ICU patients at a Brazilian teaching hospital. Methods: 56 critically ill patients colonized or infected by CRAb, dur
Braz J Infect Dis. Publicado em: 2016-12
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2. Emergence of Acinetobacter baumannii ST730 carrying the blaOXA-72 gene in Brazil
Over the last decade, Acinetobacter baumannii resistant to carbapenems has emerged in many medical centres and has been commonly associated with high morbimortality. In Brazil, this resistance is mainly attributed to the spread of OXA-23-producing clones and, to a lesser extent, to OXA-143-producing clones. Here, we describe, for the first time, two OXA-72-p
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-09
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3. Antimicrobial resistance profiles and oxacillinase genes in carbapenem-resistant Acinetobacter baumannii isolated from hospitalized patients in Santa Catarina, Brazil
Abstract: INTRODUCTION: Carbapenems are the therapy of choice for treating severe infections caused by the Acinetobacter calcoaceticus-Acinetobacter baumannii complex. We aimed to assess the prevalence and antimicrobial susceptibility profiles of producers of distinct oxacillinases among nosocomial isolates of the A. calcoaceticus-A. baumannii complex in a
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-12
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4. Acinetobacter baumannii produtor de oxacilinases (OXA) no Brasil: impacto clínico, epidemiológico e opções terapêuticas
Seguindo uma tendência mundial, no Brasil, infecções por cepas de Acinetobacter baumannii multirresistentes (MRs) produtoras de carbapenemases do tipo oxacilinases (OXA) classe D de Ambler são atualmente consideradas uma emergência clínica e epidemiológica. Cepas de A. baumannii produtoras de OXA têm sido reportadas nos estados de Alagoas, Amazonas,
J. Bras. Patol. Med. Lab.. Publicado em: 2013-12
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5. Acinetobacter spp.: resistência a antimicrobianos, genotipagem e dinâmica da colonização em CTI de um Hospital Universitário um ano de estudo
As espécies do gênero Acinetobacter são freqüentes no ambiente, mas nas últimas décadas vêm se destacando como patógenos hospitalares, especialmente Acinetobacter baumannii e as genoespécies 3 e 13TU, que formam o Complexo A. baumannii e cuja diferenciação só é possível pela utilização de metodologias moleculares. São associadas a diferentes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/03/2012
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6. OXA-143, a Novel Carbapenem-Hydrolyzing Class D β-Lactamase in Acinetobacter baumannii▿
A carbapenem-resistant Acinetobacter baumannii strain was isolated in Brazil in 2004 in which no known carbapenemase gene was detected by PCR. Cloning experiments, followed by expression in Escherichia coli, gave an E. coli recombinant strain expressing a novel carbapenem-hydrolyzing class D β-lactamase (CHDL). OXA-143 showed 88% amino acid sequence identit
American Society for Microbiology (ASM).
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7. OXA-14, another extended-spectrum variant of OXA-10 (PSE-2) beta-lactamase from Pseudomonas aeruginosa.
Pseudomonas aeruginosa 455, isolated in Ankara, Turkey, produced a pI 6.2 beta-lactamase determined by plasmid pMLH53 and resisted all beta-lactams except carbapenems. This beta-lactamase, named OXA-14, corresponded to OXA-10 (PSE-2) except that aspartate replaced glycine at position 157 and thus is intermediate between OXA-10 and OXA-11, which has aspartate
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8. OXA-11, an extended-spectrum variant of OXA-10 (PSE-2) beta-lactamase from Pseudomonas aeruginosa.
Pseudomonas aeruginosa ABD, which was isolated in October 1991 from blood cultures of a burn patient in Turkey, was resistant to cephalosporins, particularly ceftazidime (MIC, 512 micrograms/ml), penicillins, aztreonam, and meropenem, but not to imipenem. Cephalosporin and penicillin resistance transferred to P. aeruginosa PU21 and was associated with a beta