Results 101 to 110 of about 4,586 (212)

Frequency of Plasmid-Mediated Quinolone-Resistance (qnr) Genes in Pseudomonas aeruginosa Strains Isolated from Hospitalized Patients [PDF]

Journal of Mazandaran University of Medical Sciences
Background and purpose: Quinolones and fluoroquinolones are used to treat infection with resistant strains of Pseudomonas aeruginosa; however, the inappropriate use of antibiotics regardless of resistance patterns has led to the emergence of new and ...
Hamid Reza Goli, Sayede Fateme Moradi, Mohammad Reza Haghshenas, Ghazaleh Elahi, Mehrdad Gholami   +4 more
doaj  

Structural insights into quinolone antibiotic resistance mediated by pentapeptide repeat proteins: conserved surface loops direct the activity of a Qnr protein from a Gram-negative bacterium

, 2011
Quinolones inhibit bacterial type II DNA topoisomerases (e.g. DNA gyrase) and are among the most important antibiotics in current use. However, their efficacy is now being threatened by various plasmid-mediated resistance determinants.
Woolfson, D.N., Peter Oelschlaeger, Spencer, J., Oelschlaeger, P, Oelschlaeger, P., Woolfson, DN, Xiong, X.L., Xiong, X, Bromley, EHC, Derek N. Woolfson, Elizabeth H. C. Bromley, Bromley, E.H.C., Spencer, J, Xiaoli Xiong, James Spencer   +14 more
core   +1 more source

Marcadores de resistencia plasmídica a quinolonas qnr en aislamientos clínicos de enterobacterias productoras de betalactamasas CTX-M en Lima, Perú

Revista Peruana de Medicina Experimental y Salud Pública, 2019
Con el objetivo de reportar marcadores de resistencia plasmídica a quinolonas qnr en aislamientos clínicos de enterobacterias productoras de betalactamasas CTX-M, se realizó un estudio descriptivo, con aislamientos del cepario del proyecto TO-06/09 del ...
Lesdyth Jessica Toribio Arias, Carlos Raúl Sevilla Andrade, Edgar Gonzales-Escalante   +2 more
doaj   +1 more source

The Emergence of Qnr-Mediated Quinolone Resistance among Enterobacteriaceae in Jamaica

, 2010
Objective: Quinolone resistance is usually caused by various chromosomal mutations, but has been more recently associated with plasmids which carry the qnr determinant.
. S Stephenson, PD Brown, A Holness, M Wilks
core  

Genomic analysis of qnr-harbouring IncX plasmids and their transferability within different hosts under induced stress

, 2022
BACKGROUND: Conjugative plasmids play a major role in the dissemination of antibiotic resistance genes. Knowledge of the plasmid characteristics and behaviour can allow development of control strategies.
Tomas Nohejl, Alexander M. Wailan, Papousek, Ivo, Marco Minoia, Monika Dolejska, Wailan, Alexander M., Pratova, Hana, Jana Palkovicova, Palkovicova, Jana, Dolejska, Monika, Ivo Papousek, Adam Valcek, Hana Pratova, Nohejl, Tomas, Valcek, Adam, Minoia, Marco   +15 more
core   +1 more source

EVALUATION OF PLASMID-MEDIATED QUINOLONE RESISTANCE ASSOCIATED WITH THE QNR GENES IN CLINICAL ISOLATES OF SHIGELLA SPP. IN BAGHDAD

The Iraqi Journal of Medical Sciences, 2016
Background:Although quinolone resistance results mostly from chromosomal mutations in Enterobacteriaceae, it may also be mediated by plasmid-encoded qnr determinants. Shigella harboring the novel qnr plasmid-mediated mechanism of quinolone resistance has
Thanaa R. Abdulrahman, Qudus W. Jamal, Wurood A. Kadhim, Sabah A. Belal   +3 more
doaj   +4 more sources

Evaluation of the Susceptibility profiles, genetic similarity and presence of qnr gene in Escherichia coli resistant to ciprofloxacin isolated in Brazilian hospitals

Brazilian Journal of Infectious Diseases
Increasing quinolone resistance has been reported worldwide, mainly among clinical isolates of Escherichia coli. The objectives of this study were to determine the susceptibility profile, the genetic relatedness, and the prevalence of the qnr gene among ...
Andrea S. Pereira, Soraya S. Andrade, Jussimara Monteiro, Helio S. Sader, Antonio C.C. Pignatari, Ana C. Gales   +5 more
doaj   +1 more source

Prevalência do gene QNR em isolados clínicos de Escherichia coli

, 2010
Mestrado em MicrobiologiaA resistência bacteriana a quinolonas tem emergido rapidamente nos últimos anos, sendo frequentemente consequência de mutações cromossomais.
Pereira, Ana Margarida Ribau
core  

Detection and significance of plasmid-mediated quinolone resistance (qnr) genes in Enterobacteriaceae isolates from bacteraemic patients in Hong Kong. [PDF]

, 2010
Lee, Ching Ching.Thesis (M.Phil.)--Chinese University of Hong Kong, 2010.Includes bibliographical references (leaves 90-103).Abstracts in English and Chinese.Acknowledgments --- p.iAbstract --- p.ii論文摘要 --- p.ivTable of Contents --- p.viList of ...

core  

High prevalence of plasmid-mediated quinolone resistance determinants in Enterobacter cloacae isolated from hospitals of the Qazvin, Alborz, and Tehran provinces, Iran

Revista da Sociedade Brasileira de Medicina Tropical, 2016
: INTRODUCTION: Plasmid-mediated quinolone resistance (PMQR) is a growing clinical concern worldwide. The main aims of this study were to detect qnr-encoding genes and to evaluate the clonal relatedness of qnr-positive Enterobacter cloacae isolates ...
Amir Peymani, Taghi Naserpour Farivar, Reza Najafipour, Samaneh Mansouri   +3 more
doaj   +1 more source