Search results for "Drug Combination"

showing 10 items of 197 documents

Cytotoxic effects induced by patulin, deoxynivalenol and toxin T2 individually and in combination in hepatic cells (HepG2).

2018

Abstract Patulin (PAT), deoxynivalenol (DON) and toxin T-2 (T-2) are mycotoxins distributed worldwide in food and feed. Cytotoxicity of the three mycotoxins individually or in combination in human hepatocellular carcinoma (HepG2) cells was evaluated by MTT assay over 24, 48 and 72 h of exposure. The concentration ranges used were 0.625–15 μM for DON, 1.25–50 nM for T-2 and 0.45–7.5 μM for PAT. The IC 50 values obtained ranged from 9.30 to 2.53 μM, from 33.69 to 44.37 nM and from 2.66 to 1.17 μM for DON, T-2 and PAT, respectively. The most cytotoxic mycotoxin to HepG2 cells was T-2 followed by PAT and DON. The combination ratios used for the mixtures were 1:3 (DON: T-2), 1:5 (DON: PAT), 1:1.…

0301 basic medicineCell SurvivalComplex MixturesToxicologymedicine.disease_causePatulin03 medical and health scienceschemistry.chemical_compoundInhibitory Concentration 500404 agricultural biotechnologymedicineCytotoxic T cellHumansMTT assayDrug InteractionsCytotoxicityMycotoxinDose-Response Relationship DrugToxin04 agricultural and veterinary sciencesGeneral MedicineHep G2 CellsMycotoxinsmedicine.disease040401 food scienceMolecular biologyDrug CombinationsT-2 Toxin030104 developmental biologyPatulinchemistryLiverHepatocellular carcinomaHepatic stellate cellTrichothecenesFood ScienceFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association
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Differentiation and characterization of rat adipose tissue mesenchymal stem cells into endothelial-like cells

2018

In this study, mesenchymal stem cells were isolated from rat adipose tissue (AD-MSCs) to characterize and differentiate them into endothelial-like cells. AD-MSCs were isolated by mechanical and enzymatic treatments, and their identity was verified by colony-forming units (CFU) test and by differentiation into cells of mesodermal lineages. The endothelial differentiation was induced by plating another aliquot of cells in EGM-2 medium, enriched with specific endothelial growth factors. Five subcultures were performed. The expression of stemness genes (OCT4, SOX2 and NANOG) was investigated. The presence of CD90 and the absence of the CD45 were evaluated by flow cytometry. The endothelial-like…

0301 basic medicineCellular differentiationSettore VET/09 - Clinica Chirurgica VeterinariaSettore BIO/13 - Biologia Applicataimmunophenotypical analysiCell DifferentiationNanog Homeobox ProteinGeneral MedicineCadherinsFlow CytometryUp-RegulationPlatelet Endothelial Cell Adhesion Molecule-1Endothelial stem cellDrug CombinationsAdipose Tissueembryonic structuresVeterinary (all)ProteoglycansCollagenStem cellHomeobox protein NANOGadipose-derived mesenchymal stem cellDown-RegulationCD146 AntigenBiology03 medical and health sciencesMatrigel assaySOX2Antigens CDAdipose-derived mesenchymal stem cellsAnimalsEndothelial cells differentiationRats WistarImmunophenotypical analysisMatrigelGeneral VeterinaryGene Expression ProfilingSOXB1 Transcription FactorsMesenchymal stem cellEndothelial CellsMesenchymal Stem Cells3T3-L1Molecular biologyAdipose-derived mesenchymal stem cells; Endothelial cells differentiation; Gene expression; Immunophenotypical analysis; Matrigel assay; Rat; Veterinary (all)Culture MediaRats030104 developmental biologyadipose-derived mesenchymal stem cells; endothelial cells differentiation; gene expression; immunophenotypical analysis; matrigel assay; ratLeukocyte Common AntigensThy-1 AntigensRatLamininGene expressionOctamer Transcription Factor-3
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Which non-carbapenem antibiotics are active against extended-spectrum β-lactamase-producing Enterobacteriaceae?

2018

In this study, the activity of 18 non-carbapenem antibiotics was evaluated against 100 extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (ESBL-Ec) and 50 ESBL-producing Klebsiella pneumoniae (ESBL-Kp) isolated from urinary tract infections and bacteraemia in 2016. Minimum inhibitory concentrations (MICs) were determined using reference methods and the susceptibility profiles were defined according to European Committee on Antimicrobial Susceptibility Testing (EUCAST) 2017 recommendations. All of the ESBL-Ec isolates were susceptible to ceftazidime/avibactam and a great majority of them were susceptible to fosfomycin (98%), piperacillin/tazobactam (97%), amikacin (97%) and nitr…

0301 basic medicineKlebsiella pneumoniaePenicillanic AcidCeftazidimeCeftazidimechemistry.chemical_compoundAntibiotics[ SDV.MP ] Life Sciences [q-bio]/Microbiology and Parasitologypolycyclic compoundsPharmacology (medical)biologyEnterobacteriaceae InfectionsGeneral MedicineAnti-Bacterial Agents3. Good healthDrug CombinationsKlebsiella pneumoniaeInfectious Diseases[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyAmikacinUrinary Tract InfectionsCeftolozanemedicine.drugMicrobiology (medical)TazobactamAvibactam030106 microbiologyMicrobial Sensitivity TestsTazobactambeta-LactamasesMicrobiology03 medical and health sciencesEnterobacteriaceaemedicineEscherichia coliHumansMecillinambusiness.industrybiochemical phenomena metabolism and nutritionbiology.organism_classificationbacterial infections and mycosesCephalosporinsAlternativesCarbapenemschemistryESBLSusceptibilitybacteriabusinessAzabicyclo CompoundsPiperacillin
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Is prolonged infusion of piperacillin/tazobactam and meropenem in critically ill patients associated with improved pharmacokinetic/pharmacodynamic an…

2016

Objectives: We utilized the database of the Defining Antibiotic Levels in Intensive care unit patients (DALI) study to statistically compare the pharmacokinetic/pharmacodynamic and clinical outcomes between prolonged- infusion and intermittent-bolus dosing of piperacillin/tazobactam and meropenem in critically ill patients using inclusion criteria similar to those used in previous prospective studies. Methods: This was a post hoc analysis of a prospective, multicentre pharmacokinetic point-prevalence study (DALI), which recruited a large cohort of critically ill patients from 68 ICUs across 10 countries. Results: Of the 211 patients receiving piperacillin/tazobactam and meropenem in the DAL…

0301 basic medicineMalePenicillanic Acidintensive care unitlaw.inventionthienamycin derivative abdominal infection[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseaseslawcentral nervous system infectioncreatinine clearancePharmacology (medical)Infusions IntravenouProspective StudiesInfusions IntravenousProspective cohort studyTazobactam Drug CombinationAged; Anti-Bacterial Agents; Blood Chemical Analysis; Critical Illness; Female; Humans; Infusions Intravenous; Intensive Care Units; Male; Meropenem; Microbial Sensitivity Tests; Middle Aged; Penicillanic Acid; Piperacillin; Piperacillin Tazobactam Drug Combination; Prospective Studies; Thienamycins; Treatment Outcome; Pharmacology; Microbiology (medical); Pharmacology (medical); Infectious Diseasescritical illneMicrobial Sensitivity TestadultRespiratory infectionclinical trialMiddle Agedcontinuous infusionanalogs and derivativeIntensive care unit3. Good healthAnti-Bacterial Agentsantiinfective agentintravenous drug administrationIntensive Care Units[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyTreatment OutcomeInfectious DiseasesPiperacillin/tazobactammulticenter study (topic)SOFA scoreFemaletreatment outcome AgedIntravenousprospective studyHumanmedicine.drugsurvival rateMicrobiology (medical)medicine.medical_specialtyInfusionspost hoc analysirespiratory tract infectionCritical IllnessAged; Anti-Bacterial Agents; Blood Chemical Analysis; Critical Illness; Female; Humans; Infusions Intravenous; Intensive Care Units; Male; Microbial Sensitivity Tests; Middle Aged; Penicillanic Acid; Piperacillin; Prospective Studies; Thienamycins; Treatment Outcome; Pharmacology; Pharmacology (medical); Infectious Diseases030106 microbiologybloodstream infectionMicrobial Sensitivity Testsminimum inhibitory concentrationpiperacillin plus tazobactamMeropenemTazobactamArticle03 medical and health sciencescritically ill patientInternal medicineAnti-Bacterial AgentmedicineSequential Organ Failure Assessment ScoreHumansThienamycinsurvival timeblood analysiAgedPiperacillinPharmacologybusiness.industryBlood Chemical AnalysiMeropenemmajor clinical studySurgeryProspective Studiemulticenter studyPharmacology; Pharmacology (medical); Infectious Diseases[SDV.SP.PHARMA]Life Sciences [q-bio]/Pharmaceutical sciences/PharmacologyThienamycinspiperacillin tazobactam drug combinationurinary tract infectionbusinessBlood Chemical AnalysisPiperacillin
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Performance of disc diffusion, MIC gradient tests and Vitek 2 for ceftolozane/tazobactam and ceftazidime/avibactam susceptibility testing of Pseudomo…

2021

AbstractObjectivesTo assess performance of disc diffusion, gradient tests and Vitek 2 system to determine the susceptibility of clinical Pseudomonas aeruginosa strains to ceftolozane/tazobactam (C/T) and ceftazidime/avibactam (CZA).MethodsTwo-hundred non-duplicate P. aeruginosa strains isolated by 47 French medical laboratories were selected to cover a wide range of C/T and CZA MICs. Performance of C/T disc (30/10 μg, Bio-Rad), CZA discs (10/4 μg) (Thermo Fisher and Bio-Rad), C/T and CZA gradient tests (Etest, BioMérieux; MIC Test Strip, Liofilchem), and AST-XN12 card of Vitek 2 system (BioMérieux) were compared with a broth microdilution (BMD) method (Thermo Fisher). MIC and disc results w…

0301 basic medicineMicrobiology (medical)TazobactamAvibactam030106 microbiologyCeftazidimeMicrobial Sensitivity Testsmedicine.disease_causeTazobactamCeftazidime03 medical and health scienceschemistry.chemical_compound0302 clinical medicinemedicineHumansPharmacology (medical)Pseudomonas Infections030212 general & internal medicineEtestPharmacologyChromatographyPseudomonas aeruginosaChemistryBroth microdilutionCeftazidime/avibactamAnti-Bacterial AgentsCephalosporinsDrug CombinationsInfectious Diseases[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyPseudomonas aeruginosaCeftolozaneAzabicyclo Compoundsmedicine.drug
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Trifluridine/tipiracil : an emerging strategy for the management of gastrointestinal cancers

2018

Fluoropyrimidines are currently the backbone of treatment for gastrointestinal (GI) cancers but development of resistance to these agents remains a major problem. Trifluridine/tipiracil is an oral chemotherapeutic agent recently approved for third-line treatment of chemorefractory metastatic colorectal cancer. This article reviews the clinical value of trifluridine/tipiracil as a monotherapy, including recent trials in GI cancers, and the potential benefit of combining it with other agents in patients with GI cancers, including the preclinical rationale for combination therapy and recently completed and ongoing clinical trials. Data gathered so far suggest that trifluridine/tipiracil has t…

0301 basic medicineOncologyCancer Researchmedicine.medical_specialtyIndolesPyrrolidinesOrganoplatinum CompoundsCombination therapyColorectal cancerTrifluridineDocetaxelIrinotecanTrifluridine03 medical and health scienceschemistry.chemical_compound0302 clinical medicineInternal medicineAntineoplastic Combined Chemotherapy ProtocolsmedicineHumansGastrointestinal cancerContinuum of careUracilGastrointestinal NeoplasmsTipiracilClinical Trials as Topicbusiness.industryGeneral Medicinemedicine.diseaseBevacizumabOxaliplatinClinical trialDrug Combinations030104 developmental biologyOncologychemistry030220 oncology & carcinogenesisColonic NeoplasmsQuality of LifeClinical valueCamptothecinTaxoidsFluorouracilImmunotherapyHuman medicinebusinessThyminemedicine.drugFuture oncology
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Functional characterization of a novel 3D model of the epithelial-mesenchymal trophic unit

2017

Background/Aim: Epithelial-mesenchymal communication plays a key role in tissue homeostasis and abnormal signaling contributes to chronic airways disease such as COPD. Most in vitro models are limited in complexity and poorly represent this epithelial-mesenchymal trophic unit. We postulated that cellular outgrowth from bronchial tissue would enable development of a mucosal structure that recapitulates better in vivo tissue architecture. Materials and Methods: Bronchial tissue was embedded in Matrigel and outgrowth cultures monitored using time-lapse microscopy, electrical resistance, light and electron microscopy. Cultures were challenged repetitively with cigarette smoke extract (CSE). Res…

0301 basic medicinePulmonary and Respiratory MedicinePathologymedicine.medical_specialtyClinical BiochemistryBronchiRespiratory MucosaBiologyImmunofluorescenceModels Biologicalfibroblastbronchial03 medical and health sciencesIn vivoSmokemedicineHumansFibroblastMolecular BiologyCells CulturedTissue homeostasisMicroscopyMatrigelECMelectron microscopymedicine.diagnostic_testcigarette smokeMesenchymal stem cellEpithelial CellsMesenchymal Stem CellsEpitheliumCell biologyDrug Combinations030104 developmental biologymedicine.anatomical_structurein vitro modelMotile ciliumProteoglycansCollagenLamininepitheliumExperimental Lung Research
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Perspectives for the Treatment of Brucellosis in the 21st Century: The Ioannina Recommendations

2007

Policy Forum. Competing interests: ER has received research grants from Daiichi, Bayer, and Theravance and has served as a consultant to Pfizer, Theravance, Bayer, Wyeth, Rosetta, and BiondVax. Summary Points Brucellosis remains the commonest anthropozoonosis worldwide, and its treatment remains complex, requiring protracted administration of more than one antibiotic. In November 2006, a consensus meeting aimed at reaching a common specialist statement on the treatment of brucellosis was held in Ioannina, Greece under the auspices of the International Society of Chemotherapy and the Institute of Continuing Medical Education of Ioannina. The author panel suggests that the optimal treatment o…

:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Recurrence [Medical Subject Headings]Veterinary medicine:Chemicals and Drugs::Carbohydrates::Glycosides::Aminoglycosides::Streptomycin [Medical Subject Headings]:Phenomena and Processes::Microbiological Phenomena::Drug Resistance Microbial [Medical Subject Headings]DiseaseGlobal Health:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]:Health Care::Population Characteristics::Health::World Health [Medical Subject Headings]Terminología como AsuntoBrucellosi:Organisms::Eukaryota::Animals [Medical Subject Headings]:Health Care::Health Care Economics and Organizations::Organizations::International Agencies::United Nations::World Health Organization [Medical Subject Headings]Policy ForumMedicine in Developing CountriesGentamicinasDrug Resistance MicrobialBrucelosisAdhesión a DirectrizGeneral MedicineHumanosDrug CombinationsAntibacterianosDoxycyclineStreptomycinEstreptomicinaMedicine:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds with 4 or More Rings::Rifamycins::Rifampin [Medical Subject Headings]Drug Therapy CombinationGuideline AdherenceRifampinFluoroquinolonesSalud Mundialmedicine.medical_specialtyEfficacyResultado del TratamientoInvestigación BiomédicaRecurrenciaTherapeuticsWorld Health OrganizationMicrobiologyAntibiotic resistanceTerminology as Topic:Disciplines and Occupations::Social Sciences::Internationality::International Cooperation::Developing Countries [Medical Subject Headings]HumansMedical journalIntensive care medicineDeveloping Countries:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds 1-Ring::Pyrimidines::Trimethoprim::Trimethoprim-Sulfamethoxazole Combination [Medical Subject Headings]medicine.diseaseCotrimoxazoleAnimalesQuimioterapia:Humanities::Humanities::History::History Modern 1601-::History 21st Century [Medical Subject Headings]GentamicinsBrucel·losiBiomedical ResearchCommunicable diseases:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds 2-Ring::Quinolines::Quinolones::Fluoroquinolones [Medical Subject Headings]Human diseaseRecurrence:Chemicals and Drugs::Pharmaceutical Preparations::Drug Combinations [Medical Subject Headings]:Information Science::Information Science::Communication::Language::Linguistics::Terminology as Topic [Medical Subject Headings]biologyIraqi patientsRMetaanalysis:Diseases::Bacterial Infections and Mycoses::Bacterial Infections::Gram-Negative Bacterial Infections::Brucellosis [Medical Subject Headings]Historia del Siglo XXIAnti-Bacterial AgentsCombinación Trimetoprim-SulfametoxazolTreatment OutcomeInfectious Diseases:Disciplines and Occupations::Natural Science Disciplines::Science::Research::Biomedical Research [Medical Subject Headings]:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Polycyclic Hydrocarbons Aromatic::Naphthacenes::Tetracyclines::Doxycycline [Medical Subject Headings]Fluoroquinolonas:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Anti-Infective Agents::Anti-Bacterial Agents [Medical Subject Headings]:Chemicals and Drugs::Carbohydrates::Glycosides::Aminoglycosides::Gentamicins [Medical Subject Headings]Países en Desarrollo:Analytical Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Drug Therapy::Drug Therapy Combination [Medical Subject Headings]BrucellaHistory 21st CenturyBrucellosisWorld healthTrimethoprim Sulfamethoxazole Drug CombinationmedicineAnimals:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis::Treatment Outcome [Medical Subject Headings]Resistencia a Medicamentosbusiness.industryOrganización Mundial de la SaludBrucellosisMalalties infecciosesTerapèuticabiology.organism_classificationCombinación de MedicamentosDoxiciclinaTherapybusinessBrucella melitensisPLoS Medicine
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Drug resistance patterns of bacteria isolated from patients with nosocomial pneumonia at Tehran hospitals during 2009-2011

2013

Introduction: Nosocomial pneumonia remains an important cause of mortality and morbidity worldwide. Surveillance programs play an important role in the identification of common etiologic agents and local patterns of antimicrobial resistance. Methodology: In this study we determined the frequency and antimicrobial susceptibility of pathogens isolated from patients with nosocomial pneumonia during 2009 to 2011. Results: A total of 642 bacteria were isolated from 516 suspected samples. Acinetobacter baumannii (21.1%, n = 136), was the commonest isolated pathogen followed by Pseudomonas aeruginosa (17.4%, n = 112) , Staphylococcus aureus (15.8%, n = 102) and enterococci (8.4% n = 54). The most …

Acinetobacter baumanniiSettore MED/07 - Microbiologia E Microbiologia ClinicaPenicillanic AcidDrug resistanceIranmedicine.disease_causechemistry.chemical_compoundLevofloxacinDrug Resistance Multiple BacterialPrevalenceRespiratory Tract InfectionsPolymyxin BCross InfectionbiologyCeftriaxoneGeneral MedicineHospitalsAcinetobacter baumanniiAnti-Bacterial AgentsInfectious DiseasesPiperacillin Tazobactam Drug CombinationPseudomonas aeruginosaCeftriaxonemedicine.drugMethicillin-Resistant Staphylococcus aureusStaphylococcus aureusMicrobial Sensitivity TestsMicrobiologyTazobactamMicrobiologyAntibiotic resistanceAcinetobacter baumanniiiVirologymedicinePneumonia BacterialHumansTehran hospitalsGram-Positive Bacterial InfectionsPiperacillindrug resistancebusiness.industryPseudomonas aeruginosanosocomial pneumoniaSputumbiochemical phenomena metabolism and nutritionbacterial infections and mycosesbiology.organism_classificationchemistrynosocomial pneumonia; drug resistance; Acinetobacter baumanniii; Pseudomonas aeruginosa; Tehran hospitalsLinezolidParasitologybusinessGram-Negative Bacterial Infections
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Viral exanthema as manifestation of SARS-CoV-2 infection

2020

Abstract Rationale: The clinical manifestations of the SARS-CoV-2 infection are mainly respiratory but the virus can cause a variety of symptoms. Dermatological findings are less well-characterized. Data is scarce on their timing, type and correlation with the immune response. Patient concerns: We present the case of SARS-CoV-2 infection in a previously healthy woman who presented with respiratory symptoms and developed anosmia, diarrhea, and an erythematous maculo-papular rash on day 15 from symptom onset. Diagnosis: The nasopharyngeal swab tested by real time PCR for COVID-19 was positive. We interpreted this as a viral exanthema likely caused by an immune response to SARS-CoV-2 nucleotid…

Administration TopicalvirusesAzithromycinAzithromycinLopinavirimmune responseCOVID-19 Testing0302 clinical medicine030212 general & internal medicineclinical manifestations4900virus diseasesLopinavirGeneral MedicineRashDrug CombinationsDiarrheaTreatment Outcome030220 oncology & carcinogenesisFemaleSymptom Assessmentmedicine.symptomCoronavirus InfectionsHydroxychloroquineResearch Articlemedicine.drugAdultmedicine.medical_specialtyPneumonia ViralAnosmiaAntiviral AgentsBetacoronavirus03 medical and health sciencesImmune systemImmunitymedicineHumansClinical Case ReportGlucocorticoidsPandemicsRitonavirClinical Laboratory TechniquesSARS-CoV-2business.industryfungiCOVID-19HydroxychloroquineExanthemabiochemical phenomena metabolism and nutritionDermatologybusinessanosmiaMedicine
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