S Lactamases
Mostrando 1-12 de 201 artigos, teses e dissertações.
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1. Determination of antibiotic resistance genes and virulence factors in Escherichia coli isolated from Turkish patients with urinary tract infection
Abstract INTRODUCTION : Escherichia coli ranks among the most common sources of urinary tract infections (UTI). METHODS: Between November 2015 and August 2016, 90 isolates of E. coli were isolated from patients at Rize Education and Research Hospital in Turkey. Antibiotic susceptibility was determined for all isolates using the Kirby-Bauer disk diffusion
Rev. Soc. Bras. Med. Trop.. Publicado em: 27/06/2019
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2. Draft genome sequence of a GES-5-producing Serratia marcescens isolated in southern Brazil
Abstract Serratia marcescens is a Gram-negative rod intrinsically resistant to polymyxins and usually associated with wound, respiratory and urinary tract infections. The whole genome of the first GES-5-producing S. marcescens isolated from a Brazilian patient was sequenced using Ion Torrent PGM System. Besides blaGES-5, we were able to identify genes encodi
Braz. J. Microbiol.. Publicado em: 2017-06
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3. 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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4. Mutational and acquired carbapenem resistance mechanisms in multidrug resistant Pseudomonas aeruginosa clinical isolates from Recife, Brazil
An investigation was carried out into the genetic mechanisms responsible for multidrug resistance in nine carbapenem-resistant Pseudomonas aeruginosaisolates from different hospitals in Recife, Brazil. Susceptibility to antimicrobial agents was determined by broth microdilution. Polymerase chain reaction (PCR) was employed to detect the presence of genes enc
Mem. Inst. Oswaldo Cruz. Publicado em: 15/12/2015
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5. Activity of ceftaroline and comparators against pathogens isolated from skin and soft tissue infections in Latin America - results of AWARE surveillance 2012
ABSTRACT As part of the Assessing Worldwide Antimicrobial Resistance Evaluation (AWARE) surveillance program in 2012 the in vitro activity of ceftaroline and relevant comparator antimicrobials was evaluated in six Latin American countries (Argentina, Brazil, Chile, Colombia, Mexico and Venezuela) against pathogens isolated from patients with hospital associa
Braz J Infect Dis. Publicado em: 2015-12
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6. Potential virulence of Klebsiella sp. isolates from enteral diets
We aimed to evaluate the potential virulence of Klebsiellaisolates from enteral diets in hospitals, to support nosocomial infection control measures, especially among critical-care patients. Phenotypic determination of virulence factors, such as capsular expression on the external membrane, production of aerobactin siderophore, synthesis of capsular polysacc
Braz J Med Biol Res. Publicado em: 10/07/2015
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7. Widespread distribution of CTX-M and plasmid-mediated AmpC β-lactamases in Escherichia coli from Brazilian chicken meat
The dissemination of plasmid-mediated antimicrobial resistance genes may pose a substantial public health risk. In the present work, the occurrences ofblaCTX-M and plasmid-mediated ampCand qnrgenes were investigated in Escherichia colifrom 16 chicken carcasses produced by four commercial brands in Brazil. Of the brands tested, three were exporters, including
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-04
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8. Detecção de beta-lactamase em Staphylococcus aureus e Staphylococcus coagulase negativa isolados de mastite bovina
Os objetivos do presente estudo foram avaliar a presença/produção de beta-lactamases por ambos os métodos fenotípicos e genotípicos, verificar se os resultados são dependentes do tipo de bactéria (Staphylococcus aureus contra Staphylococcus coagulase negativa - CNS) e verificar a concordância entre os testes. Um total de 200 amostras bactérianas or
Pesq. Vet. Bras.. Publicado em: 2014-04
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9. Clavulanic acid production by the MMS 150 mutant obtained from wild type Streptomyces clavuligerus ATCC 27064
Clavulanic acid (CA) is a powerful inhibitor of the beta-lactamases, enzymes produced by bacteria resistants to penicillin and cefalosporin. This molecule is produced industrially by strains of Streptomyces clavuligerus in complex media which carbon and nitrogen resources are supplied by inexpensive compounds still providing high productivity. The genetic pr
Braz. J. Microbiol.. Publicado em: 24/01/2014
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10. Epidemiologia molecular e produção de β- lac-tamases de espectro estendido de Klebsiella pneumoniae isoladas de três propriedades leiteiras
Os objetivos deste estudo foram isolar Klebsiella pneumoniae de diferentes localidades em três propriedades leiteiras, utilizar a eletroforese em campo pulsátil para averiguar similaridades genotípicas entre os isolados de uma mesma propriedade, verificar a produção de beta-lactamases de espectro estendido (ESBLs) pela prova da disco-difusão dupla asso
Pesq. Vet. Bras.. Publicado em: 2013-07
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11. Production and characterization of Streptomyces clavuligerus enzymes related to the biosynthesis of clavulanic acid / Produção e caracterização de enzimas de Streptomyces clavuligerus relacionadas com a síntese do ácido clavulânico
Ácido clavulânico (AC) é um potente inibidor de β-lactamases, produzido por Streptomyces clavuligerus, usado clinicamente em combinação com antibióticos β-lactâmicos para tratar infecções bacterianas resistentes. Apesar da produção industrial de AC já ser bem estabelecida muitos aspectos importantes relacionados com sua biossíntese per
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2012
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12. Prevalência de fenótipos de resistência em Staphylococcus aureus e coagulase negativos isolados de úlceras venosas de pessoas atendidas na atenção primária
INTRODUÇÃO: Em úlceras venosas, a presença de Staphylococcus aureus e coagulase negativo com fenótipos de resistência pode constituir fator agravante e limita as opções terapêuticas. MÉTODOS: Foram avaliados estafilococos isolados de 69 pacientes, representando 98 úlceras no período de outubro de 2009 a outubro de 2010. A detecção fenotípica d
Rev. Soc. Bras. Med. Trop.. Publicado em: 2012-12