2020
Antimicrobial activity of plant extracts against carbapenem-producing Klebsiella pneumoniae and in vivo toxicological assessment
Vasconcelos N, Vaz M, Radai J, Kassuya C, Formagio A, Graciani F, Leal M, Oliveira R, da Silva K, Croda J, Simionatto S. Antimicrobial activity of plant extracts against carbapenem-producing Klebsiella pneumoniae and in vivo toxicological assessment. Journal Of Toxicology And Environmental Health Part A 2020, 83: 719-729. PMID: 32981476, DOI: 10.1080/15287394.2020.1824135.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnti-Bacterial AgentsCarbapenemsKlebsiella pneumoniaeMaleMiceMicrobial Sensitivity TestsPlant ExtractsConceptsSwiss male miceMultidrug-resistant strainsSplenic phagocytosisMale miceAgar disk diffusionBeneficial effectsToxicological assessmentMicronucleus assayKlebsiella pneumoniaePlant extractsVivo toxicological assessmentDisk diffusionAntibioticsAntimicrobial activityMutagenic activityGlobal spreadExtractMolecular characterizationAssessmentAntibacterial activityActivityMiceActive productsSynergismBlutaparon portulacoides ethanolic extract reduced IL-1β and inflammatory parameters induced by the Mycobacterium complex and carrageenan in mice
Kassuya R, Radai J, Macorini L, Nunes V, Salvador M, Leite P, Oliveira R, Croda J, Arena A, Kassuya C. Blutaparon portulacoides ethanolic extract reduced IL-1β and inflammatory parameters induced by the Mycobacterium complex and carrageenan in mice. Inflammopharmacology 2020, 29: 439-450. PMID: 32910315, DOI: 10.1007/s10787-020-00752-0.Peer-Reviewed Original ResearchMeSH KeywordsAmaranthaceaeAnimalsAnti-Inflammatory AgentsAntitubercular AgentsCarrageenanDisease Models, AnimalDose-Response Relationship, DrugEdemaFemaleInflammationInterleukin-1betaMaleMiceMice, Inbred C57BLMicrobial Sensitivity TestsMycobacterium tuberculosisPlant ExtractsPleurisyRatsRats, WistarConceptsSwiss miceIL-1β levelsC57BL-6 miceEthanolic extractInflammation/infectionSafe new drugsM. tuberculosis growthMechanical hyperalgesiaInflammatory parametersOral treatmentIL-1βPleurisy modelMinimum inhibitory concentrationPharmacoeconomic perspectiveC57BL6 miceComplete adjuvantSubcutaneous injectionOral administrationWistar ratsMiceMycobacterium tuberculosisNew drugsHealth benefitsTuberculosis growthInhibitory concentration
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 infections
2015
Coproduction of KPC-2 and IMP-10 in Carbapenem-Resistant Serratia marcescens Isolates from an Outbreak in a Brazilian Teaching Hospital
Silva K, Cayô R, Carvalhaes C, Sacchi F, Rodrigues-Costa F, da Silva A, Croda J, Gales A, Simionatto S. Coproduction of KPC-2 and IMP-10 in Carbapenem-Resistant Serratia marcescens Isolates from an Outbreak in a Brazilian Teaching Hospital. Journal Of Clinical Microbiology 2015, 53: 2324-2328. PMID: 25878341, PMCID: PMC4473237, DOI: 10.1128/jcm.00727-15.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnti-Bacterial AgentsBeta-Lactam ResistanceBeta-LactamasesBrazilCarbapenemsChild, PreschoolCross InfectionDisease OutbreaksDNA, BacterialFemaleGenes, BacterialHospitals, TeachingHumansInfantIntegronsMaleMicrobial Sensitivity TestsMiddle AgedMinocyclineMolecular Sequence DataPlasmidsSequence Analysis, DNASerratia InfectionsSerratia marcescensTigecycline
2014
Evaluation of the anti-mycobacterium tuberculosis activity and in vivo acute toxicity of Annona sylvatic
Araujo R, Neves F, Formagio A, Kassuya C, Stefanello M, Souza V, Pavan F, Croda J. Evaluation of the anti-mycobacterium tuberculosis activity and in vivo acute toxicity of Annona sylvatic. BMC Complementary Medicine And Therapies 2014, 14: 209. PMID: 24974069, PMCID: PMC4082671, DOI: 10.1186/1472-6882-14-209.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnnonaAntitubercular AgentsBrazilFemaleMiceMicrobial Sensitivity TestsMicrobial ViabilityMycobacterium tuberculosisPlant ExtractsConceptsVivo acute toxicityAnti-mycobacterial activityLC-MSFirst chemical characterizationAnti-Mycobacterium tuberculosis activityLiquid-liquid partitioningMinimal inhibitory concentrationEthyl acetate fractionChemical characterizationAntituberculosis activitySpectroscopic dataBody weightIsolation of quercetinAcute toxicityChemical fractionationChromatographic analysisFemale Swiss miceMultidrug-resistant Mycobacterium tuberculosis strainsControl of tuberculosisAcute toxicity evaluationToxicity evaluationMycobacterium tuberculosis strainsTuberculosis activityAlmunequinEAF fractions