2022
Analysis of pCl107 a large plasmid carried by an ST25 Acinetobacter baumannii strain reveals a complex evolutionary history and links to multiple antibiotic resistance and metabolic pathways
Rafei R, Koong J, Osman M, Al Atrouni A, Hamze M, Hamidian M. Analysis of pCl107 a large plasmid carried by an ST25 Acinetobacter baumannii strain reveals a complex evolutionary history and links to multiple antibiotic resistance and metabolic pathways. FEMS Microbes 2022, 3: xtac027. PMID: 37332503, PMCID: PMC10117892, DOI: 10.1093/femsmc/xtac027.Peer-Reviewed Original ResearchComplex evolutionary historyEvolutionary historyMetabolic pathwaysHybrid assembly approachConjugative transfer systemOxford Nanopore sequencingLarge plasmidsMetabolic modulesComplete sequenceMetabolism modulesAntibiotic resistance genesAncestral structureIllumina MiSeqNanopore sequencingResistance genesPossible ancestorAntibiotic resistanceGlobal clone 2PlasmidMultiple antibiotic resistanceClone 2Important pathogenResistance islandsKb plasmidSequence types
2021
Cl415, a carbapenem-resistant Acinetobacter baumannii isolate containing four AbaR4 and a new variant of AbGRI2, represents a novel global clone 2 strain
Liepa R, Mann R, Osman M, Hamze M, Gunawan C, Hamidian M. Cl415, a carbapenem-resistant Acinetobacter baumannii isolate containing four AbaR4 and a new variant of AbGRI2, represents a novel global clone 2 strain. Journal Of Antimicrobial Chemotherapy 2021, 77: 345-350. PMID: 34741594, PMCID: PMC8809195, DOI: 10.1093/jac/dkab399.Peer-Reviewed Original ResearchConceptsWhole genome sequencesWide geographical distributionGene complementNovel variantsPhylogenetic analysisGenomic analysisNew lineageComplete genomeOxford NanoporeIllumina MiSeqGenetic contextResistance genesGenesAntibiotic resistance determinantsResistance phenotypeGeographical distributionCopiesAntibiotic resistance phenotypesResistance islandsGlobal distributionResistance determinantsComM geneAntibiotic resistanceSubcladesVariantsMolecular Characterization of Antimicrobial Resistance and Virulence Genes of Bacterial Pathogens from Bovine and Caprine Mastitis in Northern Lebanon
Abboud Z, Galuppo L, Tolone M, Vitale M, Puleio R, Osman M, Loria G, Hamze M. Molecular Characterization of Antimicrobial Resistance and Virulence Genes of Bacterial Pathogens from Bovine and Caprine Mastitis in Northern Lebanon. Microorganisms 2021, 9: 1148. PMID: 34071800, PMCID: PMC8228836, DOI: 10.3390/microorganisms9061148.Peer-Reviewed Original ResearchMolecular characterizationMatrix-assisted laser desorptionGram-positive bacteriaResistance genesGenesPolymerase chain reactionPhylogenetic group B1Virulence factorsVirulence genesAntimicrobial resistance genesBacterial pathogensToxin genesLaser desorptionMastitis-causing pathogensNegative bacteriaBeta-lactamase genesFlight mass spectrometryBacterial identificationBacteriaQuadruplex PCR methodSymptoms of mastitisDairy animalsPhylogenetic typingIsolatesPathogens
2019
Plasmid-mediated quinolone resistance: Mechanisms, detection, and epidemiology in the Arab countries
Yassine I, Rafei R, Osman M, Mallat H, Dabboussi F, Hamze M. Plasmid-mediated quinolone resistance: Mechanisms, detection, and epidemiology in the Arab countries. Infection Genetics And Evolution 2019, 76: 104020. PMID: 31493557, DOI: 10.1016/j.meegid.2019.104020.Peer-Reviewed Original ResearchConceptsQuinolone resistance mechanismsQuinolone resistancePlasmid-mediated quinolone resistance mechanismsPlasmid-mediated genesImportant antimicrobial classesResistance mechanismsTreatment failureEnterobacterial infectionsPMQR genesStewardship effortsAntimicrobial classesPMQRIrrational useMultiple mechanismsHigh rateEpidemiologyQuinolonesCommon associationCrucial antibioticsEnvironmental isolatesMethod of detectionEnterobacteriaceaeAntibiotic resistance genesAnimalsResistance genes
2015
Characterization of resistance genes to macrolides, lincosamides and streptogramins (MLS) among clinical isolates of Staphylococcus aureus in North Lebanon
Osman M, Nasbeh A, Rafei R, Mallat H, Achkar M, Dabboussi F, Hamze M. Characterization of resistance genes to macrolides, lincosamides and streptogramins (MLS) among clinical isolates of Staphylococcus aureus in North Lebanon. The International Arabic Journal Of Antimicrobial Agents 2015, 5 DOI: 10.3823/780.Peer-Reviewed Original ResearchClinical isolatesStaphylococcus aureusStaphylococcus aureus infectionS. aureusPrevalence of genesMLS resistance genesMSB phenotypeNini HospitalSignificant morbidityAureus infectionDisc diffusion methodHigh prevalenceLow prevalenceMefA geneNorth LebanonPrevalenceSignificant pathogenL phenotypeResistance determinantsMLS resistanceInducible resistanceAureusErmC genePhenotypeResistance genes