Search results for " Recombinant proteins"

showing 10 items of 24 documents

Anemia during treatment with peginterferon Alfa-2b/ribavirin and boceprevir: Analysis from the serine protease inhibitor therapy 2 (SPRINT-2) trial

2013

International audience; Boceprevir (BOC) added to peginterferon alfa-2b (PegIFN) and ribavirin (RBV) significantly increases sustained virologic response (SVR) rates over PegIFN/RBV alone in previously untreated adults with chronic hepatitis C genotype 1. We evaluate the relationship of incident anemia with triple therapy. A total of 1,097 patients received a 4-week lead-in of PegIFN/RBV followed by: (1) placebo plus PegIFN/RBV for 44 weeks (PR48); (2) BOC plus PegIFN/RBV using response-guided therapy (BOC/RGT); and (3) BOC plus PegIFN/RBV for 44 weeks (BOC/PR48). The management of anemia (hemoglobin [Hb]<10 g/dL) included RBV dose reduction and/or erythropoietin (EPO) use. A total of 1,080…

Male[SDV]Life Sciences [q-bio]MedizinGastroenterologyPolyethylene GlycolsPlaceboschemistry.chemical_compoundHemoglobins0302 clinical medicinehemic and lymphatic diseasesMedicine030212 general & internal medicineChronicSettore MED/12 - GastroenterologiaInterferon-alpha; Serine Proteinase Inhibitors; Proline; Recombinant Proteins; Hematinics; Humans; Ribavirin; Anemia; Antiviral Agents; Drug Therapy Combination; Erythropoietin; Hemoglobins; Adult; Treatment Outcome; Placebos; Polyethylene Glycols; Hepatitis C Chronic; Female; MaleAnemiaHepatitis CHepatitis CRecombinant Proteins3. Good health[SDV] Life Sciences [q-bio]Treatment OutcomeCombinationPeginterferon alfa-2b030211 gastroenterology & hepatologyDrug Therapy CombinationFemalemedicine.drugAdultmedicine.medical_specialtySerine Proteinase InhibitorsProlineAnemiaInterferon alpha-2PlaceboAntiviral Agentsprotease inhibitor03 medical and health sciencesDrug TherapyInternal medicineBoceprevirRibavirinHumansAdverse effectErythropoietinHepatologybusiness.industryRibavirinInterferon-alphaHepatitis C Chronicmedicine.diseaseSurgerychemistryErythropoietinHematinicsbusiness
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The Monod-Wyman-Changeux allosteric model accounts for the quaternary transition dynamics in wild type and a recombinant mutant human hemoglobin

2012

International audience; The acknowledged success of the Monod-Wyman-Changeux (MWC) allosteric model stems from its efficacy in accounting for the functional behavior of many complex proteins starting with hemoglobin (the paradigmatic case) and extending to channels and receptors. The kinetic aspects of the allosteric model, however, have been often neglected, with the exception of hemoglobin and a few other proteins where conformational relaxations can be triggered by a short and intense laser pulse, and monitored by time-resolved optical spectroscopy. Only recently the application of time-resolved wide-angle X-ray scattering (TR-WAXS), a direct structurally sensitive technique, unveiled th…

Models MolecularProtein ConformationcooperativityMESH: Catalytic DomainCooperativity01 natural sciencesMESH: Recombinant ProteinsHemoglobinsProtein structureMESH: Protein ConformationCatalytic Domainprotein structural dynamicsMESH: Allosteric Site0303 health sciencesMultidisciplinaryallosterybiologyMESH: KineticsChemistryBiological SciencesRecombinant Proteins[SDV.BBM.BP]Life Sciences [q-bio]/Biochemistry Molecular Biology/BiophysicsMESH: HemoglobinsAllosteric SiteMESH: Models MolecularAdultMESH: MutationStereochemistryKineticsAllosteric regulation010402 general chemistry03 medical and health sciencesprotein conformational changesflash photolysisallostery; cooperativity; flash photolysis; hemoglobin; protein conformational changes; protein structural dynamics; time-resolved wide angle x ray scattering; time-resolved x-ray scatteringHumans030304 developmental biologytime-resolved X-ray scattering; protein conformational changes; cooperativity; flash photolysisMESH: Humanstime-resolved X-ray scatteringWild typeActive sitetime-resolved wide angle x ray scatteringMESH: AdulthemoglobinSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)0104 chemical sciencesprotein conformational changeKineticsAllosteric enzymeMutationbiology.proteinHemoglobin
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Impact of Safety-Related Dose Reductions or Discontinuations on Sustained Virologic Response in HCV-Infected Patients: Results from the GUARD-C Cohor…

2015

Background: Despite the introduction of direct-acting antiviral agents for chronic hepatitis C virus (HCV) infection, peginterferon alfa/ribavirin remains relevant in many resource-constrained settings. The non-randomized GUARD-C cohort investigated baseline predictors of safety-related dose reductions or discontinuations (sr-RD) and their impact on sustained virologic response (SVR) in patients receiving peginterferon alfa/ribavirin in routine practice. Methods: A total of 3181 HCV-mono-infected treatment-naive patients were assigned to 24 or 48 weeks of peginterferon alfa/ribavirin by their physician. Patients were categorized by time-to-first sr-RD (Week 4/12). Detailed analyses of the i…

Genetics and Molecular Biology (all)MaleChronic HepatitisHepacivirusRibavirin/adverse effectsAsthenia/chemically inducedHepacivirusPolyethylene GlycolBiochemistryPolyethylene GlycolsBody Mass IndexChronic Liver Disease0302 clinical medicineNeutropenia/chemically inducedInterferon-alpha/adverse effectsMedicineChroniclcsh:ScienceLiver Diseasesvirus diseasesAntiviral Agents/adverse effectsCohortScience & Technology - Other Topics030211 gastroenterology & hepatologyDrug Therapy CombinationCohort studyHumanmedicine.medical_specialtyAlpha interferonGastroenterology and HepatologyAntiviral AgentsMicrobiologyDose-Response Relationship03 medical and health sciencesPharmacotherapyHepatitis C Chronic/drug therapyDose Prediction MethodsDrug TherapyAnemia/chemically inducedHumansHemoglobinAgedMedicine and health sciencesBiochemistry Genetics and Molecular Biology (all)HepaciviruScience & TechnologyDose-Response Relationship DrugFlaviviruseslcsh:ROrganismsBiology and Life SciencesProteinsmedicine.diseasedigestive system diseaseschemistryAgricultural and Biological Sciences (all)Withholding TreatmentAstheniaImmunologyProportional Hazards Modellcsh:QHuman medicineRNA virusesPhysiologylcsh:MedicinePeginterferon-alfaPolyethylene Glycols/adverse effectsAdult; Aged; Anemia; Antiviral Agents; Asthenia; Cohort Studies; Dose-Response Relationship Drug; Drug Therapy Combination; Female; Hepacivirus; Hepatitis C Chronic; Host-Pathogen Interactions; Humans; Interferon-alpha; Male; Middle Aged; Neutropenia; Outcome Assessment (Health Care); Polyethylene Glycols; Proportional Hazards Models; RNA Viral; Recombinant Proteins; Ribavirin; Withholding Treatment; Agricultural and Biological Sciences (all); Biochemistry Genetics and Molecular Biology (all); Medicine (all)Cohort Studieschemistry.chemical_compoundOutcome Assessment Health CareMedicine and Health Sciences030212 general & internal medicineViralPathology and laboratory medicineMultidisciplinarybiologyHepatitis C virusPharmaceuticsMedicine (all)AnemiaHepatitis CHematologyRecombinant ProteinOutcome Assessment (Health Care)/methodsMiddle AgedMedical microbiologyHepatitis CRecombinant ProteinsHost-Pathogen InteractionMultidisciplinary SciencesPhysiological ParametersResearch DesignCombinationHost-Pathogen InteractionsVirusesRNA ViralFemaleDrugPathogensHost-Pathogen Interactions/drug effectsResearch ArticleAdultNeutropeniaClinical Research DesignResearch and Analysis MethodsOutcome Assessment (Health Care)Internal medicineRibavirinRecombinant Proteins/adverse effectsRNA Viral/bloodAdult; Aged; Anemia; Antiviral Agents; Asthenia; Cohort Studies; Dose-Response Relationship Drug; Drug Therapy Combination; Female; Hepacivirus; Hepatitis C Chronic; Host-Pathogen Interactions; Humans; Interferon-alpha; Male; Middle Aged; Neutropenia; Outcome Assessment (Health Care); Polyethylene Glycols; Proportional Hazards Models; RNA Viral; Recombinant Proteins; Ribavirin; Withholding TreatmentAdult; Aged; Anemia; Antiviral Agents; Asthenia; Cohort Studies; Dose-Response Relationship Drug; Drug Therapy Combination; Female; Hepacivirus; Hepatitis C Chronic; Host-Pathogen Interactions; Humans; Interferon-alpha; Male; Middle Aged; Neutropenia; Outcome Assessment (Health Care); Polyethylene Glycols; Proportional Hazards Models; RNA Viral; Recombinant Proteins; Ribavirin; Withholding Treatment; Medicine (all); Biochemistry Genetics and Molecular Biology (all); Agricultural and Biological Sciences (all)Proportional Hazards ModelsAntiviral Agentbusiness.industryRibavirinBody WeightHepacivirus/drug effectsViral pathogensInterferon-alphaHepatitis C Chronicbiology.organism_classificationHepatitis virusesMicrobial pathogensRNAAdverse EventsCohort StudiebusinessPloS one
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Pegylated interferon α plus ribavirin for the treatment of chronic hepatitis C: A multicentre independent study supported by the Italian Drug Agency

2014

a b s t r a c t Background: Data on the efficacy of Peg-interferon/ribavirin therapy for chronic hepatitis C are mostly derived from treatment of selected patients enrolled in clinical trials. This study aimed to assess the effectiveness of Peg-interferon/ribavirin therapy in “real world” chronic hepatitis C patients in Italy. Methods: Independent observational multicentre study including consecutive patients receiving Peginterferon/ribavirin in the 18 months before (retrospective phase) and after (prospective phase) the start of the study. Results: 4176 patients were eligible. The final study population consisted of 2051 patients in the retrospective and 2073 in the prospective phase. Sust…

RegistrieMaleCirrhosismedicine.disease_causePolyethylene GlycolGastroenterologyPolyethylene Glycolschemistry.chemical_compoundHepatitis VirusesHepatitis ViruseProspective StudiesViralRegistriesChronicProspective cohort studyDrug CarrierDrug CarriersSettore MED/12 - GastroenterologiaMedicine (all)GastroenterologyRecombinant ProteinMiddle AgedHepatitis CRecombinant ProteinsTreatment OutcomeItalyCombinationRNA ViralPopulation studyDrug Therapy CombinationFemaleHumanmedicine.medical_specialtyGenotypeHepatitis C virusAlpha interferonRibavirin; Sustained virological response (SVR); TreatmentAntiviral AgentsFollow-Up StudieRibavirin; Sustained virological response (SVR); Treatment; Hepatology; GastroenterologyDrug TherapyInternal medicineRibavirinmedicineHumansAntiviral AgentHepatologybusiness.industryRibavirinInterferon-alphaHCV therapyHepatitis C ChronicHepatologymedicine.diseaseClinical trialTreatmentProspective StudiechemistryImmunologyRNARibavirin; Sustained virological response (SVR); Treatment; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Female; Follow-Up Studies; Genotype; Hepatitis C Chronic; Hepatitis Viruses; Humans; Interferon-alpha; Italy; Male; Middle Aged; Polyethylene Glycols; Prospective Studies; RNA Viral; Recombinant Proteins; Ribavirin; Treatment Outcome; RegistriesbusinessRibavirin; Sustained virological response (SVR); Treatment; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Female; Follow-Up Studies; Genotype; Hepatitis C Chronic; Hepatitis Viruses; Humans; Interferon-alpha; Italy; Male; Middle Aged; Polyethylene Glycols; Prospective Studies; RNA Viral; Recombinant Proteins; Ribavirin; Treatment Outcome; Registries; Gastroenterology; Hepatology; Medicine (all)Follow-Up StudiesSustained virological response (SVR)
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Add-on peginterferon alfa-2a to nucleos(t)ide analogue therapy for Caucasian patients with hepatitis B ‘e’ antigen-negative chronic hepatitis B genot…

2019

Nucleos(t)ide analogues (NAs) and peginterferon have complementary effects in chronic hepatitis B, but it is unclear whether combination therapy improves responses in genotype D-infected patients. We conducted an open-label study of peginterferon alfa-2a 180 μg/week added to ongoing NA therapy in hepatitis B e antigen (HBeAg)-negative, genotype D-infected patients with HBV DNA <20 IU/mL. The primary endpoint was proportion of patients with ≥50% decline in serum HBsAg by the end of the 48-week add-on phase. Seventy patients received treatment, 11 were withdrawn at week 24 for no decrease in HBsAg, and 14 withdrew for other reasons. Response rate (per-protocol population) was 67.4% (29/43) at…

MaleHBsAgGastroenterologyPolyethylene Glycolschronic hepatitis B; HBeAg-negative; nucleos(t)ide analogues; peginterferon; treatment; Hepatology; Infectious Diseases; Virology0302 clinical medicineInterferonGenotypeHBVHepatitis B e Antigenspeginterferonchronic hepatitis b; hbeag-negative; nucleos(t)ide analogues; peginterferon; treatment; adult; antiviral agents; drug administration schedule; drug therapy combination; female; genotype; hepatitis b e antigens; hepatitis b virus; hepatitis b chronic; humans; interferon-alpha; male; middle aged; nucleosides; polyethylene glycols; recombinant proteins; treatment outcomeeducation.field_of_studytreatmentnucleos(t)ide analoguesvirus diseasesNucleosidesMiddle AgedRecombinant ProteinsTreatment OutcomeInfectious Diseasesnucleos(t)ide analogueHBeAg030220 oncology & carcinogenesisDrug Therapy CombinationFemale030211 gastroenterology & hepatologyPeginterferon alfa-2amedicine.drugAdultHepatitis B virusmedicine.medical_specialtyGenotypeCombination therapyPopulationHBeAg-negativeInfectious DiseaseHBeAg-negative; chronic hepatitis B; nucleos(t)ide analogues; peginterferon; treatmentchronic hepatitis B; HBeAg-negative; nucleos(t)ide analogues; peginterferon; treatmentAntiviral AgentsDrug Administration Schedule03 medical and health sciencesHepatitis B ChronicInternal medicineVirologymedicineHumanschronic hepatitis BeducationHepatologybusiness.industryInterferon-alphaConfidence intervalbusiness
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Erythropoietin and subarachnoid hemorrhage.

2010

Pathologymedicine.medical_specialtySubarachnoid hemorrhageErytTime Factorserythropoietin subarachnoid hemorragelaw.inventionAnimals; Brain Ischemia; Clinical Trials; Phase II as Topic; Disease Models; Animal; Eryt; Humans; Neuroprotective Agents; Randomized Controlled Trials as Topic; Recombinant Proteins; Subarachnoid Hemorrhage; Time Factors; hropoietinBrain IschemiaBrain ischemialawmedicineAnimalsHumansClinical TrialsRandomized Controlled Trials as TopicSettore MED/27 - Neurochirurgiabusiness.industryAnimalPhase II as TopicGeneral MedicinehropoietinSubarachnoid Hemorrhagemedicine.diseaseRecombinant ProteinsNeuroprotective AgentsErythropoietinDisease ModelsRecombinant DNAbusinessmedicine.drug
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Recombinant erythropoietin vs. blood transfusion care in infants with hereditary spherocytosis: a retrospective cohort study of A.I.E.O.P. patients (…

2017

MalePediatricsmedicine.medical_specialtyBlood transfusionReticulocytesAnemiamedicine.medical_treatmentSpherocytosisSpherocytosisMEDLINEErythrocyte Count; Erythropoietin; Female; Follow-Up Studies; Hemoglobins; Humans; Infant; Infant Newborn; Italy; Male; Recombinant Proteins; Reticulocytes; Retrospective Studies; Spherocytosis Hereditary; Blood Transfusion; HematologyHereditary spherocytosis03 medical and health sciencesHemoglobins0302 clinical medicinemedicineHumansBlood TransfusionRecombinant erythropoietinErythropoietinErythrocyte Count; Erythropoietin; Female; Follow-Up Studies; Hemoglobins; Humans; Infant; Infant Newborn; Italy; Male; Recombinant Proteins; Reticulocytes; Retrospective Studies; Spherocytosis Hereditary; Blood TransfusionRetrospective Studiesbusiness.industryInfantRetrospective cohort studyHematologymedicine.diseaseNewbornRecombinant ProteinsSurgeryHereditaryItalyErythropoietin030220 oncology & carcinogenesisErythrocyte Count030211 gastroenterology & hepatologyFemalebusinessmedicine.drugFollow-Up Studies
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Replacement therapy for bleeding episodes in factor VII deficiency: A prospective evaluation

2013

Patients with inherited factor VII (FVII) deficiency display different clinical phenotypes requiring ad hoc management. This study evaluated treatments for spontaneous and traumatic bleeding using data from the Seven Treatment Evaluation Registry (STER). One-hundred one bleeds were analysed in 75 patients (41 females; FVII coagulant activity <1-20%). Bleeds were grouped as haemarthroses (n=30), muscle/subcutaneous haematomas (n=16), epistaxis (n=12), gum bleeding (n=13), menorrhagia (n=16), central nervous system (CNS; n=9), gastrointestinal (GI; n=2) and other (n=3). Of 93 evaluable episodes, 76 were treated with recombinant, activated FVII (rFVIIa), eight with fresh frozen plasma (FFP), s…

MaleRegistrieTime FactorsFactor VII Deficiency030204 cardiovascular system & hematologyReplacement therapyProspective evaluationchemistry.chemical_compound0302 clinical medicineMedicineProspective StudiesRegistriesYoung adultProspective cohort studyFactor VII deficiencyChildHematologyFactor VIIHematologyMiddle AgedRecombinant ProteinBlood Coagulation FactorsRecombinant ProteinsTreatment OutcomeCoagulantChild PreschoolFemaleBlood Coagulation FactorHumanAdultmedicine.medical_specialtyAdolescentTime FactorHemorrhageBlood Component TransfusionFactor VIIaBleeds; Factor VII deficiency; Replacement therapy; Adolescent; Adult; Aged; Blood Coagulation Factors; Child; Child Preschool; Coagulants; Drug Administration Schedule; Factor VII Deficiency; Factor VIIa; Female; Hemorrhage; Humans; Infant; Infant Newborn; Male; Middle Aged; Prospective Studies; Recombinant Proteins; Registries; Time Factors; Treatment Outcome; Young Adult; Blood Component Transfusion; HematologyDrug Administration Schedule03 medical and health sciencesYoung AdultInternal medicineHumansAgedBleeding episodesbusiness.industryCoagulantsInfant NewbornInfantSurgeryProspective StudieTreatment evaluationchemistryBleedbusiness030215 immunology
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The Sea Urchin sns Insulator Blocks CMV Enhancer following Integration in Human Cells

2001

Insulators are a new class of genetic elements that attenuate enhancer function directionally. Previously, we characterized in sea urchin a 265-bp-long insulator, termed sns. To test insulator activity following stable integration in human cells, we placed sns between the CMV enhancer and a tk promoter up-stream of a GFP transgene of plasmid or retroviral vectors. In contrast to controls, cells transfected or transduced with insulated constructs displayed a barely detectable fluorescence. Southern blot and PCR ruled out vector rearrangement following integration into host DNA; RNase protection confirmed the enhancer blocking activity. Finally, we demonstrate that two cis-acting sequences, p…

animal structuresSea UrchinVirus IntegrationTransgeneMolecular Sequence DataBiophysicsCytomegalovirusSettore BIO/11 - Biologia MolecolareSimian virus 40BiologyTransfectionPolymerase Chain ReactionBiochemistrySodium ChannelsNAV1.8 Voltage-Gated Sodium ChannelPlasmidTumor Cells CulturedAnimalsHumansEnhancer trapDNA Polymerase Chain ReactionEnhancerBinding Sites; DNA Polymerase Chain Reaction; Recombinant Proteins; Sea Urchins;Tumor Cells Cultured; Enhancer Elements Genetic; Virus Integration;Molecular BiologyVirus IntegrationSouthern blotBinding SitesBase SequenceBinding SiteCell BiologyTransfectionRecombinant ProteinMolecular biologyRecombinant ProteinsChromatinSettore BIO/18 - GeneticaEnhancer Elements GeneticSea UrchinsDNA ViralBiochemical and Biophysical Research Communications
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Boceprevir is highly effective in treatment-experienced hepatitis C virus-positive genotype-1 menopausal women

2014

AIM: To investigate the safety/efficacy of Boceprevirbased triple therapy in hepatitis C virus (HCV)-G1 menopausal women who were historic relapsers, partial-responders and null-responders. METHODS: In this single-assignment, unblinded study, we treated fifty-six menopausal women with HCV-G1, 46% F3-F4, and previous PEG-α/RBV failure (7% null, 41% non-responder, and 52% relapser) with 4 wk lead-in with PEG-IFNα2b/RBV followed by PEGIFNα2b/RBV+Boceprevir for 32 wk, with an additional 12 wk of PEG-IFN-α-2b/RBV if patients were HCV-RNA-positive by week 8. In previous null-responders, 44 wk of triple therapy was used. The primary objective of retreatment was to verify whether a sustained virolo…

Time FactorsViral HepatitisClinical Trials StudyHepacivirusViral hepatitiPolyethylene GlycolPolyethylene Glycolschemistry.chemical_compoundPegylated interferonOdds RatioMultivariate AnalysiPegylated InterferonGastroenterologyGeneral MedicineHepatitis CHepatitis c virus treatmentMiddle AgedRecombinant ProteinViral LoadGenotype 1Recombinant ProteinsMenopauseTreatment OutcomeItalyRNA ViralDrug Therapy CombinationFemaleMenopauseViral hepatitisViral loadPegylated interferonHumanmedicine.drugmedicine.medical_specialtyGenotypeLogistic ModelProlineTime FactorInterferon alpha-2Hepatitis C virus treatmentAntiviral AgentsPharmacotherapyInternal medicineBoceprevirRibavirinmental disordersmedicineHumansAntiviral AgentHepacivirubusiness.industryInterferon-alphaBiomarkerGenotype 1; Hepatitis c virus treatment; Menopause; Pegylated interferon; Viral hepatitis; Antiviral Agents; Biomarkers; Drug Therapy Combination; Female; Genotype; Hepacivirus; Hepatitis C Chronic; Humans; Interferon-alpha; Italy; Logistic Models; Middle Aged; Multivariate Analysis; Odds Ratio; Polyethylene Glycols; Proline; RNA Viral; Recombinant Proteins; Ribavirin; Time Factors; Treatment Outcome; Viral Load; Menopause; GastroenterologyHepatitis C Chronicmedicine.diseaseVirologyLogistic ModelschemistryHepatitis C Virus PositiveMultivariate AnalysisGenotype 1; Hepatitis C virus treatment; Menopause; Pegylated Interferon; Viral HepatitisbusinessBiomarkers
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