Plasmid-mediated quinolone resistance among extended spectrum beta lactase producingEnterobacteriaceaefrom bloodstream infections
نویسندگان
چکیده
منابع مشابه
Prevalence of Plasmid-mediated Quinolone Resistance and Its Association with Extended-spectrum Beta-lactamase and AmpC Beta-lactamase in Enterobacteriaceae
BACKGROUND We investigated the prevalence of plasmid-mediated quinolone resistance and its association with extended-spectrum beta-lactamase (ESBL) and AmpC beta-lactamase in Enterobacteriaceae. METHODS A total of 347 non-duplicated isolates of Enterobacteriaceae were collected between August and October 2006 from 2 hospitals. Qnr determinant screening was conducted using PCR amplification, a...
متن کاملExtended-Spectrum-Beta-Lactamases, AmpC Beta-Lactamases and Plasmid Mediated Quinolone Resistance in Klebsiella spp. from Companion Animals in Italy
We report the genetic characterization of 15 Klebsiella pneumoniae (KP) and 4 isolates of K. oxytoca (KO) from clinical cases in dogs and cats and showing extended-spectrum cephalosporin (ESC) resistance. Extended spectrum beta-lactamase (ESBL) and AmpC genes, plasmid-mediated quinolone resistance (PMQR) and co-resistances were investigated. Among KP isolates, ST101 clone was predominant (8/15,...
متن کاملprevalence of plasmid-mediated quinolone resistance (pmqr) determinants among extended spectrum beta-lactamases (esbl)-producing isolates of escherichia coli and klebsiella pneumoniae in aleppo, syria
conclusions the most common qnr gene was qnrb, and none of the isolates carried qnra or qepa. the aac (6’)-ib-cr variant was the most prevalent pmqr gene, and it was associated with the prevalence of ciprofloxacin resistance in our esbl-producing isolates. results of the 123 isolates, 103 (83.73%) had one of the five pmqr genes, including 83 (83.83%) of the 99 e. coli strains and 20 (86.95%) of...
متن کاملExpanded-spectrum β-Lactamase and Plasmid-mediated Quinolone Resistance
To the Editor: The emergence of plasmid-mediated, and thus transfer-able, quinolone resistance determinants has been recently discovered (1) and shown to involve the pentapeptide repeat protein Qnr, which interacts with DNA gyrase and topoisomerase IV to prevent quinolone inhibition (2,3). Qnr determinants confer resistance to nalidixic acid and reduced susceptibility to fl uoroquinolones (3). ...
متن کاملPlasmid-mediated quinolone resistance in expanded spectrum beta lactamase producing enterobacteriaceae in Morocco.
INTRODUCTION Although independently acquired, plasmid-mediated quinolone resistance appears to be linked with extended-spectrum or AmpC-type beta-lactamases. Since no data are available in African countries, the prevalence of qnr genes at the University Hospital Ibn Rochd, Casablanca, Morocco, was investigated. METHODOLOGY Between October 2006 and March 2007, the following 39 randomly selecte...
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ژورنال
عنوان ژورنال: Acta Microbiologica et Immunologica Hungarica
سال: 2016
ISSN: 1217-8950,1588-2640
DOI: 10.1556/030.63.2016.002