Search results for "Sensitivity test"

showing 5 items of 355 documents

Thiazole Analogues of the Marine Alkaloid Nortopsentin as Inhibitors of Bacterial Biofilm Formation

2020

Anti-virulence strategy is currently considered a promising approach to overcome the global threat of the antibiotic resistance. Among different bacterial virulence factors, the biofilm formation is recognized as one of the most relevant. Considering the high and growing percentage of multi-drug resistant infections that are biofilm-mediated, new therapeutic agents capable of counteracting the formation of biofilms are urgently required. In this scenario, a new series of 18 thiazole derivatives was efficiently synthesized and evaluated for its ability to inhibit biofilm formation against the Gram-positive bacterial reference strains Staphylococcus aureus ATCC 25923 and S. aureus ATCC 6538 a…

thiazole derivativeAquatic OrganismsStaphylococcus aureusIndolesantibiotic resistanceSettore BIO/05 - ZoologiaPharmaceutical ScienceMicrobial Sensitivity TestsBacterial growthSettore BIO/19 - Microbiologia Generalemedicine.disease_cause01 natural sciencesArticlenortopsentinAnalytical ChemistryMicrobiologylcsh:QD241-441Inhibitory Concentration 50chemistry.chemical_compoundAlkaloidsAntibiotic resistancelcsh:Organic chemistryDrug DiscoverymedicinePhysical and Theoretical ChemistryThiazoleStrain (chemistry)010405 organic chemistryPseudomonas aeruginosamarine alkaloids analoguesAlkaloidOrganic ChemistryImidazolesBiofilmantibiofilm agentsSettore CHIM/08 - Chimica Farmaceuticamarine alkaloids analogueantibiofilm agent0104 chemical sciencesThiazoles010404 medicinal & biomolecular chemistrychemistryChemistry (miscellaneous)Staphylococcus aureusBiofilmsPseudomonas aeruginosathiazole derivativesMolecular MedicineMolecules
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Double copies of blaKPC-3::Tn4401a on an IncX3 plasmid in Klebsiella pneumoniae successful clone ST512 from Italy

2015

ABSTRACT A carbapenem-resistant sequence type 512 (ST512) Klebsiella pneumoniae carbapenemase 3 (KPC-3)-producing K. pneumoniae strain showing a novel variant plasmid content was isolated in Palermo, Italy, in 2014. ST512 is a worldwide successful clone associated with the spread of bla KPC genes located on the IncFIIk pKpQIL plasmid. In our ST512 strain, the bla KPC-3 gene was unusually located on an IncX3 plasmid, whose complete sequence was determined. Two copies of bla KPC-3 ::Tn 4401a caused by intramolecular transposition events were detected in the plasmid.

transposonsequence analysispolymerase chain reactionDrug ResistanceGene DosageSettore MED/42 - Igiene Generale E Applicatabacterial proteinbeta-Lactamaseopen reading framecarbapenemasePlasmidminocyclineplasmid DNAmeropenemPharmacology (medical)geneticscolistincefpodoximeceftazidime610 Medicine & healthCarbapenemBacterialpolymyxin Btimentingene expression regulationbacteriumKlebsiella pneumoniae carbapenemase 3 producing Klebsiella pneumoniae3. Good healthantiinfective agentmicrobial sensitivity testKlebsiella pneumoniaeItalypriority journaltigecyclineMultipleclone (Java method)cefotaxime030106 microbiologyKlebsiella pneumoniae carbapenemase 3tobramycinMicrobial Sensitivity Testsgentamicinpiperacillin plus tazobactamchemistryGene dosageArticleMicrobiology03 medical and health sciencesComplete sequenceClone CellOpen Reading FramesertapenemBacterial Proteinsmultidrug resistanceextensively drug resistant bacteriumAnti-Bacterial AgentcefepimePharmacologylevofloxacinmicrobiologycefoxitinbiochemical phenomena metabolism and nutritionbacterial infections and mycosesVirologyAnti-Bacterial Agents; Bacterial Proteins; Carbapenems; Clone Cells; Drug Resistance Multiple Bacterial; Gene Dosage; Italy; Klebsiella Infections; Klebsiella pneumoniae; Microbial Sensitivity Tests; Open Reading Frames; Plasmids; beta-Lactamases; DNA Transposable Elements; Gene Expression Regulation Bacterial; Pharmacology (medical); Pharmacology; Infectious Diseasesantibiotic sensitivityClone CellsKlebsiella InfectionsceftriaxoneCarbapenemsbacterial genetics0301 basic medicinemolecular cloningSettore MED/07 - Microbiologia E Microbiologia ClinicaKlebsiella pneumoniaeTransposition (music)Drug Resistance Multiple Bacterialpolycyclic compoundsgenetic screeningcell clonecarbapenem derivativeKlebsiella infectionunclassified drugAnti-Bacterial AgentsInfectious Diseasesbacterial genePlasmidsenzymologydoripenemBiologyminimum inhibitory concentrationbeta-Lactamasesbeta lactamaseMechanisms of ResistanceciprofloxacinAmikacin; aztreonam; carbapenemase; cefepime; cefotaxime; cefoxitin; cefpodoxime; ceftazidime; ceftriaxone; ciprofloxacin; colistin; cotrimoxazole; doripenem; doxycycline; ertapenem; gentamicin; imipenem; Klebsiella pneumoniae carbapenemase 3; levofloxacin; meropenem; minocycline; piperacillin plus tazobactam; plasmid DNA; polymyxin B; tigecycline; timentin; tobramycin; unclassified drug; antiinfective agent; bacterial protein; beta lactamase; carbapenem derivative; transposon antibiotic sensitivity; Article; bacterial gene; bacterial genetics; bacterial strain; bacterium; bacterium detection; bacterium isolation; Escherichia coli; extensively drug resistant bacterium; gene dosage; genetic screening; Italy; Klebsiella pneumoniae; Klebsiella pneumoniae carbapenemase 3 producing Klebsiella pneumoniae; minimum inhibitory concentration; molecular cloning; nonhuman; polymerase chain reaction; priority journal; sequence analysis; cell clone; chemistry; drug effects; enzymology; gene expression regulation; genetics; isolation and purification; Klebsiella infection; Klebsiella pneumoniae; metabolism; microbial sensitivity test; microbiology; multidrug resistance; open reading frame; plasmid; transposon Anti-Bacterial Agents; Bacterial Proteins; beta-Lactamases; Carbapenems; Clone Cells; DNA Transposable Elements; Drug Resistance Multiple Bacterial; Gene Dosage; Gene Expression Regulation Bacterial; Italy; Klebsiella Infections; Klebsiella pneumoniae; Microbial Sensitivity Tests; Open Reading Frames; Plasmidsplasmidbacterium isolationEscherichia coliGeneAmikacinbacterium detectionnonhumandoxycyclineisolation and purificationGene Expression Regulation Bacterialbiology.organism_classificationbacterial straincotrimoxazoleOpen reading frameDNA Transposable Elementdrug effectsDNA Transposable Elementsmetabolismaztreonamimipenem
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Antibacterial activity and cytotoxicity of selected Egyptian medicinal plants.

2011

Medicinal plants have been used as a source of remedies since ancient times in Egypt. The present study was designed to investigate the antibacterial activity and the cytotoxicity of the organic extracts from 16 selected medicinal plants of Egypt. The study was also extended to the isolation of the antiproliferative compound jaeschkeanadiol p-hydroxybenzoate (FH-25) from Ferula hermonis. The microbroth dilution was used to determine the minimal inhibitory concentration (MIC) of the samples against twelve bacterial strains belonging to four species, Providencia stuartii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli, while a resazurin assay was used to assess the cytoto…

ved/biology.organism_classification_rank.speciesPharmaceutical ScienceBreast NeoplasmsMicrobial Sensitivity TestsProvidenciamedicine.disease_causeAnalytical Chemistrychemistry.chemical_compoundMinimum inhibitory concentrationInhibitory Concentration 50MagnoliopsidaCell Line TumorKlebsiellaPseudomonasDrug DiscoverymedicineEscherichia coliHumansVitisCytotoxicityMedicinal plantsEscherichia coliPharmacologyLeukemiaPlants MedicinalbiologyTraditional medicineved/biologyPlant ExtractsProvidencia stuartiiOrganic ChemistryResazurinbiology.organism_classificationAntineoplastic Agents PhytogenicAnti-Bacterial AgentsFerulaComplementary and alternative medicinechemistryDrug Resistance NeoplasmMolecular MedicineEgyptFemaleAntibacterial activitySesquiterpenesFerula hermonisPhytotherapyPlanta medica
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In-Depth Characterization of Bioactive Extracts from Posidonia oceanica Waste Biomass

2019

© 2019 by the authors.

ved/biology.organism_classification_rank.speciesPhytochemicalsPharmaceutical ScienceBiomassMicrobiologiaantioxidant capacity7. Clean energy01 natural sciencesEcologia marinaAntioxidantsFoodborne Diseaseschemistry.chemical_compoundMicevalorisationAnti-Infective AgentsDrug DiscoveryFood scienceAntifungal activityBiomasslcsh:QH301-705.5Pharmacology Toxicology and Pharmaceutics (miscellaneous)Caliciviridae InfectionsPlant Proteinschemistry.chemical_classificationFeline calicivirusAlismatalesbiologyultrasound04 agricultural and veterinary sciences040401 food scienceantiviralLipids6. Clean waterAntioxidant capacityMicrobiologia marinaPosidonia oceanicaMitosporic FungiValorisationValorisationMicrobial Sensitivity TestsPolysaccharideArticle0404 agricultural biotechnologyPhenolsPolysaccharidesUltrasoundAnimalsHumansAntiviralHot water extractionEthanolEthanol010405 organic chemistryved/biologyPlant Extractsantifungal activityNorovirusWaterbiology.organism_classification0104 chemical sciencesEcologiaHot water extractionRAW 264.7 Cellslcsh:Biology (General)chemistryCatsSolventsAntiviralesQuímica Analíticahot water extractionMurine norovirusCalicivirus FelineMarine Drugs
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Characterization and antimicrobial activity of the volatile components of the flowers of Magydaris tomentosa (Desf.) DC. collected in Sicily and Alge…

2014

The essential oils of the flowers of Magydaris tomentosa (Desf.) DC. (Apiaceae) collected in Sicily (MSi) and Algeria (MAl), respectively, were obtained by hydrodistillation, and their compositions were analysed. The analyses allowed the identification and quantification of 23 components in MSi and 60 compounds in MAl, respectively, showing a very different profile in the composition of the two populations. The main components of MSi were cembrene (28.2%), α-springene (17.5%) and β-springene (14.8%), also present in MAl but in lesser amount (0.4%, 1.8% and 0.9%, respectively), whereas the principal constituents of MAl were (E)-nerolidol (35.4%), α-costol (13.3%) and β-costol (6.8%). Both MS…

β-springeneFlowersMicrobial Sensitivity TestsPlant ScienceBiochemistryMagydaris tomentosaGas Chromatography-Mass Spectrometryessential oilAnalytical ChemistryAnti-Infective Agentsα\-springeneStaphylococcus epidermidisparasitic diseasesOils VolatileMagydarisSicilyApiaceaeantimicrobial activitybiologyTraditional medicineOrganic ChemistrySettore CHIM/06 - Chimica Organicabiology.organism_classificationAntimicrobialαspringeneAnti-Bacterial AgentsPlant LeavesChemotaxonomyAlgerialipids (amino acids peptides and proteins)Composition (visual arts)DiterpenesAntibacterial activitySesquiterpenesApiaceae
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