2020
Synergistic effects of Cinnamomum cassia L. essential oil in combination with polymyxin B against carbapenemase-producing Klebsiella pneumoniae and Serratia marcescens
Vasconcelos N, de Sá Queiroz J, da Silva K, de Paula Vasconcelos P, Croda J, Simionatto S. Synergistic effects of Cinnamomum cassia L. essential oil in combination with polymyxin B against carbapenemase-producing Klebsiella pneumoniae and Serratia marcescens. PLOS ONE 2020, 15: e0236505. PMID: 32701970, PMCID: PMC7377461, DOI: 10.1371/journal.pone.0236505.Peer-Reviewed Original ResearchMeSH KeywordsAnti-Bacterial AgentsBacterial ProteinsBeta-LactamasesCinnamomum aromaticumDrug Resistance, Multiple, BacterialDrug SynergismHumansKlebsiella InfectionsKlebsiella pneumoniaeOils, VolatilePolymyxin BSerratia InfectionsSerratia marcescensSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
2019
Origanum vulgare L. essential oil inhibits the growth of carbapenem-resistant gram-negative bacteria
Vasconcelos N, Croda J, Silva K, Motta M, Maciel W, Limiere L, Simionatto S. Origanum vulgare L. essential oil inhibits the growth of carbapenem-resistant gram-negative bacteria. Revista Da Sociedade Brasileira De Medicina Tropical 2019, 52: e20180502. PMID: 31271619, DOI: 10.1590/0037-8682-0502-2018.Peer-Reviewed Original ResearchConceptsCarbapenem-resistant strainsAlternative therapeutic optionTime-kill assaysMultidrug-resistant bacteriaTherapeutic optionsMinimum inhibitory concentrationAcinetobacter baumanniiCell countCarbapenemase productionKill assaysOriganum vulgare L. essential oilL. essential oilKlebsiella pneumoniaeInhibitory concentrationDrug developmentResistant bacteriaH treatmentSerratia marcescensAntimicrobial effectNegative bacteria
2018
A high mortality rate associated with multidrug-resistant Acinetobacter baumannii ST79 and ST25 carrying OXA-23 in a Brazilian intensive care unit
da Silva K, Maciel W, Croda J, Cayô R, Ramos A, de Sales R, Kurihara M, Vasconcelos N, Gales A, Simionatto S. A high mortality rate associated with multidrug-resistant Acinetobacter baumannii ST79 and ST25 carrying OXA-23 in a Brazilian intensive care unit. PLOS ONE 2018, 13: e0209367. PMID: 30592758, PMCID: PMC6310363, DOI: 10.1371/journal.pone.0209367.Peer-Reviewed Original ResearchMeSH KeywordsAcinetobacter baumanniiAcinetobacter InfectionsAdultAgedAged, 80 and overAnti-Bacterial AgentsBacterial ProteinsBeta-LactamasesBrazilCase-Control StudiesCross InfectionDrug Resistance, Multiple, BacterialFemaleHospital MortalityHumansIntensive Care UnitsMaleMicrobial Sensitivity TestsMiddle AgedConceptsOXA-23-producing A. baumanniiHigh mortality rateA. baumanniiMortality rateRisk factorsHealthcare-related risk factorsBrazilian intensive care unitsIntensive care unit patientsIntensive care unit settingCarbapenem-resistant Acinetobacter baumanniiISAba1 insertion sequenceA. baumannii infectionsCare unit patientsIntensive care unitBlaOXA-51 geneUse of cephalosporinsCase-control studyBaumannii infectionsUnit patientsCare unitNasogastric tubeTherapeutic optionsUnit settingNosocomial infectionsSuch infectionsAntibacterial mechanisms of cinnamon and its constituents: A review
Vasconcelos N, Croda J, Simionatto S. Antibacterial mechanisms of cinnamon and its constituents: A review. Microbial Pathogenesis 2018, 120: 198-203. PMID: 29702210, DOI: 10.1016/j.micpath.2018.04.036.Peer-Reviewed Original ResearchConceptsAntibacterial mechanismGram-negative bacteriaCell divisionMembrane porinsBiofilm formationPotential new sourceCell membraneResistant bacterial infectionsAnti-quorum sensing effectsPathogenic GramCurrent knowledgeBacteriaBacterial infectionsNew antibioticsCommercial antibioticsMulti-drug resistant bacterial infectionsSynergistic interactionTypes of mechanismsAntibacterial actionATPasesPorinCinnamic acidMechanismAntibacterial agentsGlobal health threat