Ctx M
Mostrando 13-24 de 256 artigos, teses e dissertações.
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13. Molecular epidemiology of 16S rRNA methyltransferase in Brazil: RmtG in Klebsiella aerogenes ST93 (CC4)
Abstract Aminoglycosides are a class of antibiotics that play a key role in antimicrobial treatment of Multidrug resistant (MDR) Gram-negative bacilli, typically in combination with β-lactams. Ribosomal 16S RNA modification by methyltransferases (e.g. RmtG) is an aminoglycoside resistance mechanism that, along with the occurrence carbapenem-resistant Entero
An. Acad. Bras. Ciênc.. Publicado em: 17/12/2018
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14. pMEX01, a 70 kb plasmid isolated from Escherichia coli that confers resistance to multiple β-lactam antibiotics
Abstract Multidrug-resistant microorganisms are of great concern to public health. Genetic mobile elements, such as plasmids, are among the most relevant mechanisms by which bacteria achieve this resistance. We obtained an Escherichia coli strain CM6, isolated from cattle presenting severe diarrheic symptoms in the State of Querétaro, Mexico. It was found t
Braz. J. Microbiol.. Publicado em: 2018-09
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15. Virulência, resistência e relação genética de Escherichia coli e Klebsiella sp.isoladas de potros de muar
RESUMO Doenças respiratórias são comuns em potros de equinos, porém pouco se sabe sobre tais infecções em potros de muar. Este estudo buscou caracterizar Escherichia coli e Klebsiella sp. isolados de lavados traqueais (TW) e amostras fecais (FS) de potros de muar com e sem evidências citológicas de doença respiratória. As amostras bacterianas foram
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2017-10
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16. Molecular detection of β-lactamase and integron genes in clinical strains of Klebsiella pneumoniae by multiplex polymerase chain reaction
Abstract INTRODUCTION: Infections caused by β-lactamase-producing gram-negative bacteria, such as Klebsiella pneumoniae, are increasing globally with high morbidity and mortality. The aim of the current study was to determine antimicrobial susceptibility patterns and the prevalence of antibiotic resistance genes (β-lactamase and integron genes) using mul
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-06
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17. Detection and molecular characterization of β-lactamase genes in clinical isolates of Gram-negative bacteria in Southern Ecuador
ABSTRACT This work performed a phenotypic and genotypic characterization of 79 clinical isolates of Enterobacteriaceae and Pseudomonadaceae collected in hospitals of Southern Ecuadorin 2013. Our results showed a high incidence of β-lactamases and ESBLs with blaTEM and blaCTX-M as the prevalent genes, respectively. By direct sequencing of PCR amplicons, the
Braz J Infect Dis. Publicado em: 2016-12
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18. Detecção de genes de resistência a antimicrobianos em Klebsiella pneumoniae produtoras de betalactamases e carbapenemases por culturas de vigilância de pacientes em uma unidade de terapia intensiva no Rio de Janeiro, Brasil
RESUMO Introdução: O aumento da incidência de microrganismos multirresistentes é considerado um dos principais problemas de saúde pública. Uma das rotinas incluídas na prática hospitalar é a busca de pacientes colonizados e/ou infectados. Objetivo: Avaliar a variabilidade genética e as relações clonais de K. pneumoniae produtoras de betalactama
J. Bras. Patol. Med. Lab.. Publicado em: 2016-10
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19. CTX-M extended-spectrum β-lactamase-producing Klebsiella spp, Salmonella spp, Shigella spp and Escherichia coli isolates in Iranian hospitals
Abstract This study was conducted in Iran in order to assess the distribution of CTX-M type ESBLs producing Enterobacteriaceae. From January 2012 to December 2013, totally 198 E. coli, 139 Klebsiella spp, 54 Salmonella spp and 52 Shigella spp from seven hospitals of six provinces in Iran were screened for resistance to extended-spectrum cephalosporins. After
Braz. J. Microbiol.. Publicado em: 2016-09
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20. Characterization of a small outbreak of Salmonella enterica serovar Infantis that harbour CTX-M-65 in Ecuador
Braz J Infect Dis. Publicado em: 2016-08
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21. Occurrence and characteristics of extended spectrum beta-lactamases-producing Enterobacteriaceae from foods of animal origin
Abstract Presence of extended spectrum beta-lactamases (ESBL) in bacteria is a growing health concern of global significance. The local, regional, national, and international epidemiological studies for extended spectrum beta-lactamases-producing Enterobacteriaceae and their encoding genes in foods are still incomplete. The objective of this study was to det
Braz. J. Microbiol.. Publicado em: 2016-06
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22. Resistance patterns, ESBL genes, and genetic relatedness of Escherichia coli from dogs and owners
Abstract Antimicrobial resistance in Escherichia coli isolated from pet dogs can be considered a potential threat of infection for the human population. Our objective was to characterize the resistance pattern, extended spectrum beta-lactamase production and genetic relatedness of multiresistant E. coli strains isolated from dogs (n = 134), their owners (n =
Braz. J. Microbiol.. Publicado em: 2016-03
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23. Whole genome sequence of Klebsiella pneumoniae U25, a hypermucoviscous, multidrug resistant, biofilm producing isolate from India
Klebsiella pneumoniae U25 is a multidrug resistant strain isolated from a tertiary care hospital in Chennai, India. Here, we report the complete annotated genome sequence of strain U25 obtained using PacBio RSII. This is the first report of the whole genome of K. pneumoniaespecies from Chennai. It consists of a single circular chromosome of size 5,491,870-bp
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-02
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24. Phenotypic and molecular characterization of CTX-M extended-spectrum beta-lactamase-producing Escherichia coli isolates in Shiraz, Iran
AbstractINTRODUCTIONThe aim of this study was to detect the prevalence of the extended-spectrum beta-lactamase (ESBL)-encoding CTX-M gene in Escherichia coliisolates.METHODS:Phenotypic screening of 376 E. coli isolates for ESBL was conducted using disk diffusion. ESBL-producing isolates were tested using PCR and specific primers. The blaCTX-M cluster was ide
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-08