Results 21 to 30 of about 3,945 (212)

Characterization of carbapenemases, ESBLs, and plasmid-mediated quinolone determinants in carbapenem-insensitive Escherichia coli and Klebsiella pneumoniae in Riyadh hospitals

Journal of Infection and Public Health, 2018
The main objective of this work was to characterize carbapenemases, extended-spectrum β-lactamases (ESBLs), and plasmid-mediated quinolone resistance (PMQR) among carbapenem-insensitive Klebsiella pneumoniae and Escherichia coli clinical isolates which ...
Mohamed H. Al-Agamy, Abduelah Aljallal, Hesham H. Radwan, Atef M. Shibl   +3 more
doaj   +2 more sources

Assessment of nucleic acid extraction protocols for antibiotic resistance genes (ARGs) quantification in aircraft wastewater

Human Genomics
This study evaluated ten nucleic acid extraction protocols (EP1 to EP10) for measuring five endogenous antibiotic resistance genes (ARGs) in four aircraft wastewater samples (AWW1 to AWW4). The targeted ARGs, including bla CTX-M , bla NDM-1 , ermB, qnrS,
Wendy J. M. Smith, Yawen Liu, Stuart L. Simpson, Aaron Bivins, Warish Ahmed   +4 more
doaj   +3 more sources

Evaluation of Potential ARG Packaging by Two Environmental T7-Like Phage during Phage-Host Interaction

Viruses, 2020
The increase in antimicrobial resistance is a threat to both human and animal health. The transfer of antibiotic resistance genes (ARG) via plasmids has been studied in detail whereas the contribution of bacteriophage-mediated ARG transmission is ...
Junlin Liu, Peng Liu, Fenglin Feng, Junxuan Zhang, Fulin Li, Mianzhi Wang, Yongxue Sun   +6 more
doaj   +2 more sources

Wastewater-Based Assessment of Antimicrobial Resistance and Bacterial Communities in Urban and Rural Areas in the Province of Trento (Italy). [PDF]

Microbiologyopen
Wastewater from urban and rural areas was analyzed to investigate antimicrobial‐resistant bacteria and resistance genes. ESBL‐Escherichia coli and genes coding for clinically relevant resistances, namely, those to macrolides, carbapenems, and vancomycin, were higher in urban than in rural areas.
Petricciuolo M, Carnevali A, Torboli A, Postinghel M, Guasticchi A, Foladori P, Cadonna M, Federici E.   +7 more
europepmc   +2 more sources

Plasmid –mediated antimicrobial resistance bla CMY-2 gene and qnr (qnr A,qnr B and qnr S) genes in Salmonella isolated from human, animal and milk

Basrah Journal of Veterinary Research, 2021
  This study was conducted to detect the blaCMY-2 gene and qnr genes (qnrA, qnrB and qnrS)in Salmonella isolates from 278 different samples (50 direct milk samples, 50 indirect milksamples, 50 feces samples, 50 teat swab samples, 28 manual milk swabs and 50 stoolsamples) in Basrah province.
Mohammed Khudor, Marwan Mohammed
openaire   +2 more sources

qnr Gene Nomenclature [PDF]

Antimicrobial Agents and Chemotherapy, 2008
Since the plasmid-borne quinolone resistance gene qnr was reported in 1998 (8), many additional qnr alleles have been discovered on plasmids or the bacterial chromosome (reviewed in references 9 and 13). The plasmid-borne qnr genes currently comprise three families, qnrA, qnrB, and qnrS, differing from each other 40% or more in nucleotide sequence ...
George, Jacoby, Vincent, Cattoir, David, Hooper, Luis, Martínez-Martínez, Patrice, Nordmann, Alvaro, Pascual, Laurent, Poirel, Minggui, Wang   +7 more
openaire   +2 more sources

QNR Optimization based Pansharpening [PDF]

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
Quality Without Reference (QNR) index can be used to globally assess the quality of pansharpened images without the need of a reference high resolution multispectral (MS) image. The QNR index relies on local calculation of the Q4 index. Exploiting the local Q4 calculation property of the QNR index, we propose an injection model for pansharpening.
Muhammad Murtaza Khan, Luciano Alparone, Jocelyn Chanussot   +2 more
openaire   +1 more source

Hyperspectral pansharpening using QNR optimization constraint [PDF]

2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2009
This paper presents a method for pansharpening of low resolution Hyperspectral (HS) images. The proposed method is based upon the optimization of both the spectral and spatial quality criteria of the QNR quality assessment index. The simultaneous optimization of the spectral and spatial quality constraints is obtained by means of the Pareto solutions ...
Muhammad Murtaza Khan, Jocelyn Chanussot, Luciano Alparone   +2 more
openaire   +1 more source

A qnr -plasmid allows aminoglycosides to induce SOS in Escherichia coli [PDF]

eLife, 2021
Abstract The plasmid-mediated quinolone resistance (PMQR) genes have been shown to promote high-level bacterial resistance to fluoroquinolone antibiotics, potentially leading to clinical treatment failures. In Escherichia coli , sub-inhibitory concentrations (sub-MIC)
Babosan, Anamaria, Skurnik, David, Muggeo, Anaëlle, Pier, Gerald, Baharoglu, Zeynep, Jové, Thomas, Ploy, Marie-Cécile, Griveau, Sophie, Bedioui, Fethi, Vergnolle, Sébastien, Moussalih, Sophie, de Champs, Christophe, Mazel, Didier, Guillard, Thomas   +13 more
openaire   +6 more sources

Functional verification of computationally predicted qnr genes [PDF]

Annals of Clinical Microbiology and Antimicrobials, 2013
The quinolone resistance (qnr) genes are widely distributed among bacteria. We recently developed and applied probabilistic models to identify tentative novel qnr genes in large public collections of DNA sequence data including fragmented metagenomes.By using inducible recombinant expressions systems the functionality of four identified qnr candidates ...
Flach, Carl-Fredrik, Boulund, Fredrik, Kristiansson, Erik, Larsson, DG   +3 more
openaire   +2 more sources