Search results for "I-h"

showing 10 items of 184 documents

Predictors of Hepatitis B Surface Antigen Titers two decades after vaccination in a cohort of students and post-graduates of the Medical School at th…

2017

Introduction and objective. The introduction of a vaccine against hepatitis B virus (HBV) for newborn babies in Italy in 1991, extended to 12-year-old children for the first 12 years of application, has been a major achievement in terms of the prevention of HBV infection. The objective of this study was to analyse the long-term immunogenicity and effectiveness of HBV vaccination among healthcare students with different working seniorities. Materials and method. A cross-sectional observational study of undergraduate and postgraduate students attending the Medical School of the University of Palermo was conducted from January 2014 – July 2016. HBV serum markers were performed with commercial …

0301 basic medicineMaleHBsAgSettore MED/07 - Microbiologia E Microbiologia ClinicaStudents Medicalmedicine.disease_causeLogistic regressionCohort Studies0302 clinical medicine030212 general & internal medicineChildWaste Management and DisposalHBV infectionlcsh:Environmental sciencesSchools Medicallcsh:GE1-350Anti-HBs titreHepatitis BVaccinationCohortFemaleAdultmedicine.medical_specialtyHepatitis B virusAdolescent030106 microbiologyHBV infection HBV vaccination Anti-HBs titre Healthcare students postgraduate medical studentsHealthcare studentslcsh:Agriculture03 medical and health sciencesYoung AdultInternal medicinemedicineHumansHepatitis B VaccinesHepatitis B AntibodiesStudentsEcology Evolution Behavior and SystematicsHBV vaccinationHepatitis B virusHepatitis B Surface Antigensbusiness.industrySettore MED/44 - Medicina Del Lavorolcsh:SPublic Health Environmental and Occupational HealthOdds ratioConfidence intervalpostgraduate medical studentsCross-Sectional StudiesImmunologyObservational studybusinessBiomarkersFollow-Up Studies
researchProduct

Efficacy and tolerability of switching to a dual therapy with darunavir/ritonavir plus raltegravir in HIV-infected patients with HIV-1 RNA ≤50 cp/…

2017

Background: Nucleos(t)ide reverse transcriptase inhibitors (NRTI) toxicity may represent a threat for long-term success of combined antiretroviral therapy. Some studies have suggested a possible improvement of NRTI-related toxicity after switching to NRTI-sparing regimens. Objectives: We aimed to explore the efficacy and tolerability of switching to darunavir/ritonavir (DRV/r) plus raltegravir (RAL) while having a viral load (VL) ≤50 copies/mL in the clinical setting. Study design: Treatment-experienced HIV 1-infected patients enrolled in the ICONA Foundation Study cohort were included if they switched their current regimen to DRV/r + RAL with a HIV-RNA ≤50 copies/mL. Different defin…

0301 basic medicineMaleHIV InfectionsAntiretroviral therapy; Darunavir/ritonavir; Efficacy; NRTI-sparing regimen; Raltegravir; Tolerability; Microbiology (medical); Infectious DiseasesAntiretroviral therapy; Darunavir/ritonavir; Efficacy; NRTI-sparing regimen; Raltegravir; Tolerability; Adult; Anti-HIV Agents; Cohort Studies; Darunavir; Drug Therapy Combination; Female; HIV Infections; HIV-1; Humans; Italy; Male; Middle Aged; RNA Viral; Raltegravir Potassium; Ritonavir; Viral LoadGastroenterologyCohort StudiesAntiretroviral therapy; Darunavir/ritonavir; Efficacy; NRTI-sparing regimen; Raltegravir; Tolerability0302 clinical medicineMedicineNRTI-sparing regimen030212 general & internal medicineViralDarunavireducation.field_of_studyLamivudineGeneral MedicineMiddle AgedViral LoadTolerabilityAntiretroviral therapyInfectious DiseasesTolerabilityItalyCombinationRNA ViralDrug Therapy CombinationFemaleViral loadmedicine.drugAdultMicrobiology (medical)medicine.medical_specialtyEfficacyAnti-HIV Agents030106 microbiologyPopulationDarunavir/ritonavir; Raltegravir; Efficacy; Tolerability; Antiretroviral therapy; NRTI-sparing regimenSettore MED/17 - MALATTIE INFETTIVELower riskNO03 medical and health sciencesDrug TherapyInternal medicineRaltegravir PotassiumHumanseducationDarunavirRitonavirbusiness.industryDarunavir/ritonavirRaltegravirRaltegravirHIV-1RNARitonavirbusinessAntiretroviral therapy; Darunavir/ritonavir; Efficacy; NRTI-sparing regimen; Raltegravir; Tolerability;
researchProduct

Incidence and risk factors for liver enzyme elevation among naive HIV-1-infected patients receiving ART in the ICONA cohort

2019

AbstractObjectivesTo evaluate the incidence and risk factors for liver enzyme elevations (LEE) in patients initiating first-line ART in the ICONA prospective observational cohort, between June 2009 and December 2017.Patients and methodsIn total, 6575 ART-naive patients were selected, initiating two NRTIs with the third drug being a boosted PI (n=2436; 37.0%), an NNRTI (n=2384; 36.3%) or an integrase strand transfer inhibitor (INSTI) (n=1755; 26.7%). HBV surface antigen and HCV RNA were detected in 3.9% and 5.8% of the study population. Inverse probability weighted Cox regression analysis was used to calculate the HRs, according to first-line regimen, for LEE, defined as ALT or AST increases…

0301 basic medicineMaleIntegrase inhibitorHepatitis B Surface AntigenHIV Infections0302 clinical medicineRisk Factorshivh epatitis c rna surface antigens follow-up homosexuality integrase inhibitors hepatitis b virus hepatitis b virus measurement hiv infections hepatotoxicity hepatitis c virus coinfection nucleoside reverse transcriptase inhibitors non-nucleoside reverse transcriptase inhibitors cox proportional hazards models baseline value liver enzyme raltegravirPharmacology (medical)HIV Infection030212 general & internal medicineProspective StudiesProspective cohort studyCoinfectionIncidence (epidemiology)Liver DiseaseIncidenceLiver Diseasesvirus diseasesHepatitis CMiddle AgedHepatitis CReverse Transcriptase InhibitorInfectious DiseasesCohortCoinfectionPopulation studyRegression AnalysisReverse Transcriptase InhibitorsFemalemedicine.drugHumanMicrobiology (medical)Adultmedicine.medical_specialtyAnti-HIV AgentsRegression AnalysiNO03 medical and health sciencesInternal medicinemedicineHumansHIV Integrase InhibitorsHIV Protease InhibitorPharmacologyHepatitis B Surface Antigensbusiness.industryAnti-HIV AgentHIV ARTHIV Protease Inhibitorsmedicine.diseaseRaltegravir030112 virologyHIV Integrase InhibitorProspective StudieHIV-1businessAdult Anti-HIV Agents Coinfection Female Hepatitis B Surface Antigens Hepatitis C HIV Infections HIV Integrase Inhibitors HIV Protease Inhibitors HIV-1 Humans Incidence Liver Diseases Male Middle Aged Prospective Studies Regression Analysis Reverse Transcriptase Inhibitors Risk Factors
researchProduct

PD-L1 in small bowel adenocarcinoma is associated with etiology and tumor-infiltrating lymphocytes, in addition to microsatellite instability

2020

Small bowel adenocarcinomas (SBAs) are often associated with poor prognosis and have limited therapeutic options. Programmed cell death protein-1 (PD-1)/programmed cell death ligand 1 (PD-L1) pathway blockade is an effective treatment in many microsatellite instability-high (MSI-H) solid tumors. We aimed at investigating PD-L1 and PD-1 expression in non-hereditary, non-ampullary SBAs, associated with celiac disease (CeD), Crohn’s disease (CrD), or sporadic, recruited through the Small Bowel Cancer Italian Consortium. We assessed PD-L1 and PD-1 by immunohistochemistry in a series of 121 surgically resected SBAs, including 34 CeD-SBAs, 49 CrD-SBAs, and 38 sporadic SBAs. PD-L1 and PD-1 express…

0301 basic medicineMalePD-L1 - small bowel adenocarcinoma - tumor-infiltrating lymphocytes - microsatellite instabilityPathologyBLOCKADEColorectal cancerLymphocyteSmall bowel adenocarcinomaGastroenterologyB7-H1 AntigenSettore MED/120302 clinical medicineCrohn DiseaseIntestine Smallsmall bowel adenocarcinomaSmall bowel adenocarcinomasMEDULLARY CARCINOMA; MORPHOLOGY; EXPRESSION; BLOCKADE; CANCERbiologymicrosatelliteinstabilityMiddle AgedCANCERmedicine.anatomical_structureMedullary carcinomatumor infiltrating lymphocytes030220 oncology & carcinogenesistumor-infiltrating lymphocytesAdenocarcinomaFemaleMicrosatellite InstabilityPD-L1Adultmedicine.medical_specialtysmall bowel adenocarcinoma tumor-infiltrating lymphocytes microsatelliteinstabilitySettore MED/08 - Anatomia PatologicaAdenocarcinomaMEDULLARY CARCINOMAPD-L1 small bowel adenocarcinomaNOPathology and Forensic Medicine03 medical and health sciencesLymphocytes Tumor-InfiltratingInternal medicinePD-L1expressionIntestinal NeoplasmsBiomarkers TumormedicineHumansPD-L1; small bowel adenocarcinoma; tumor infiltrating lymphocytesPD-L1 in small bowel adenocarcinoma MSI-HSmall bowel adenocarcinoma expression microsatellite instability biomarkersAgedRetrospective Studiesbusiness.industryTumor-infiltrating lymphocytesbiomarkersCancerCorrectionMicrosatellite instabilitymedicine.diseaseCeliac Disease030104 developmental biologybiology.proteinEtiologyMORPHOLOGYbusiness
researchProduct

Evolution of transmitted HIV-1 drug resistance and viral subtypes circulation in Italy from 2006 to 2016

2018

Objectives: The aim was to evaluate the evolution of transmitted HIV-1 drug resistance (TDR) prevalence in antiretroviral therapy (ART)-naïve patients from 2006 to 2016. Methods: HIV-1 sequences were retrieved from the Antiviral Response Cohort Analysis (ARCA) database and TDR was defined as detection of at least one mutation from the World Health Organization (WHO) surveillance list. Results: We included protease/reverse transcriptase sequences from 3573 patients; 455 had also integrase sequences. Overall, 68.1% of the patients were Italian, the median CD4 count was 348 cells/μL [interquartile range (IQR) 169–521 cells/μL], and the median viral load was 4.7 log 10 HIV-1 RNA copies/mL (IQR …

0301 basic medicineMaleantiretroviral therapy; HIV; recent HIV infection; resistance epidemiology; transmitted HIV drug resistance; Adult; Anti-HIV Agents; CD4 Lymphocyte Count; Female; HIV Infections; HIV-1; Humans; Italy; Male; Middle Aged; Mutation; Odds Ratio; Prevalence; Viral Proteins; Drug Resistance Viralantiretroviral therapy; HIV; recent HIV infection; resistance epidemiology; transmitted HIV drug resistance; Health Policy; Infectious Diseases; Pharmacology (medical)Drug ResistanceHIV InfectionsDrug resistanceGastroenterologyInterquartile rangeOdds RatioPrevalenceHIV InfectionPharmacology (medical)ViralbiologyHealth PolicyMiddle AgedIntegraseInfectious DiseasesItalyFemaleViral loadHumanresistance epidemiologyAdultmedicine.medical_specialtytransmitted HIV drug resistanceAnti-HIV AgentsHIV; antiretroviral therapy; recent HIV infection; resistance epidemiology; transmitted HIV drug resistance030106 microbiologyantiretroviral therapySettore MED/17 - MALATTIE INFETTIVEVirus03 medical and health sciencesrecent HIV infectionViral ProteinsInternal medicineDrug Resistance ViralmedicineViral ProteinHumansbusiness.industryAnti-HIV AgentHIVOdds ratioReverse transcriptaseConfidence intervalCD4 Lymphocyte CountMutationbiology.proteinHIV-1business
researchProduct

The purine analogues abacavir and didanosine increase acetaminophen-induced hepatotoxicity by enhancing mitochondrial dysfunction

2016

Background NRTIs are essential components of HIV therapy with well-documented, long-term mitochondrial toxicity in hepatic cells, but whose acute effects on mitochondria are unclear. As acetaminophen-induced hepatotoxicity also involves mitochondrial interference, we hypothesized that it would be exacerbated in the context of ART. Methods We evaluated the acute effects of clinically relevant concentrations of the most widely used NRTIs, alone or combined with acetaminophen, on mitochondrial function and cellular viability. Results The purine analogues abacavir and didanosine produced an immediate and concentration-dependent inhibition of oxygen consumption and complex I and III activity. Th…

0301 basic medicineMicrobiology (medical)Mitochondrial DiseasesstavudineAnti-HIV Agentsantiretroviral therapyPurine analogueContext (language use)Mitochondria LiverMitochondrionPharmacologymedicine.disease_causeacute liver-failureCell Line03 medical and health sciencesOxygen ConsumptionmedicineHumansPharmacology (medical)Reverse-transcriptase inhibitorsAcetaminophenPharmacologychemistry.chemical_classificationmechanismsReactive oxygen speciesbusiness.industryassociationtoxicityAnalgesics Non-Narcoticmedicine.diseaseGlutathioneReactive Nitrogen SpeciesDideoxynucleosideshep3b cellsAcetaminophenMitochondrial toxicityDidanosine030104 developmental biologyInfectious DiseaseschemistryElectron Transport Chain Complex ProteinsToxicityhypersensitivityChemical and Drug Induced Liver Injurybusinesshepatic cellsOxidative stressmedicine.drug
researchProduct

Intrinsic volatility of synaptic connections — a challenge to the synaptic trace theory of memory

2017

According to the synaptic trace theory of memory, activity-induced changes in the pattern of synaptic connections underlie the storage of information for long periods. In this framework, the stability of memory critically depends on the stability of the underlying synaptic connections. Surprisingly however, synaptic connections in the living brain are highly volatile, which poses a fundamental challenge to the synaptic trace theory. Here we review recent experimental evidence that link the initial formation of a memory with changes in the pattern of connectivity, but also evidence that synaptic connections are considerably volatile even in the absence of learning. Then we consider different…

0301 basic medicineNeuronal PlasticityGeneral Neuroscience[SCCO.NEUR]Cognitive science/NeuroscienceModels NeurologicalTheoretical modelsBrain03 medical and health sciences030104 developmental biology0302 clinical medicineAnti-Hebbian learningMemoryNeuroplasticityMetaplasticityNeural PathwaysSynapsesAnimalsHumansLearningPsychologyNeuroscience030217 neurology & neurosurgeryComputingMilieux_MISCELLANEOUSTrace theory
researchProduct

p53 and p53-related mediators PAI-1 and IGFBP-3 are downregulated in peripheral blood mononuclear cells of HIV-patients exposed to non-nucleoside rev…

2019

The improved effectiveness and safety of the combined antiretroviral therapy (cART) has largely diminished mortality and AIDS-defining morbidity of HIV-patients. Nevertheless, chronic age-related diseases in these individuals are more common and their underlying pathogenic mechanisms of these actions seem to involve accelerated aging and enhanced inflammation. The present study explores markers of these processes in a heterogenous Spanish HIV cohort using peripheral blood samples of HIV-patients and matched uninfected controls. We isolated periheral blood mononuclear cells (PBMCs) and i) compared the expression of a panel of 14 genes related to inflammation and senescence in PBMCs of HIV-pa…

0301 basic medicineSenescenceAdultMaleAnti-HIV Agents030106 microbiologyDown-RegulationInflammationHIV InfectionsCCL2Peripheral blood mononuclear cell03 medical and health sciencesVirologyAntiretroviral Therapy Highly ActivePlasminogen Activator Inhibitor 1medicineCXCL10HumansCellular SenescencePharmacologyInflammationbusiness.industryInterleukin-6Interleukin-18virus diseasesMiddle AgedCCL20Chemokine CXCL10030104 developmental biologyInsulin-Like Growth Factor Binding Protein 3ImmunologyLeukocytes MononuclearReverse Transcriptase InhibitorsInterleukin 18Tumor necrosis factor alphaFemalemedicine.symptomTumor Suppressor Protein p53businessAntiviral research
researchProduct

Clinical Characteristics and Outcomes of Patients with COVID-19 Infection: The Results of the SARS-RAS Study of the Italian Society of Hypertension

2021

: The COVID-19 infection has rapidly spread around the world and a second wave is sweeping in many countries. Different clinical and epidemiological aspects characterize the disease and their understanding is necessary to better face the management of the pandemic in progress. The Italian society of arterial hypertension with the SARS-RAS study has contributed significantly to the knowledge of the interaction between inhibition of the renin-angiotensin system and COVID-19 infection. Furthermore, the study results help to understand some of the main aspects related to mortality and morbidity deriving from the infection through a multicentre analysis throughout the national territory.

0301 basic medicineSettore MED/09 - Medicina InternaCross-sectional studyDiseaseComorbiditySeverity of Illness IndexComorbiditiesRenin-Angiotensin System0302 clinical medicineRisk FactorsSex-differences.EpidemiologyPandemicFrailtySars-Cov2Treatment OutcomeItalyAnti-hypertensive therapy; comorbidities; frailty; Sars-Cov2; sex-differencesHypertensionComorbiditiePosition PaperRisk assessmentCardiology and Cardiovascular Medicinemedicine.medical_specialtySex-differenceRisk Assessment03 medical and health sciencesPharmacotherapySex FactorsSeverity of illnessmedicineAnti-hypertensive therapy Sars-Cov2 Frailty Comorbidities Sex-differencesInternal MedicineHumansArterial PressureAnti-hypertensive therapy Comorbidities Frailty Sars-Cov2 Sex-differencesIntensive care medicineAnti-hypertensive therapyAntihypertensive AgentsAnti-hypertensive therapy; Comorbidities; Frailty; Sars-Cov2; Sex-differences; Antihypertensive Agents; Arterial Pressure; COVID-19; Comorbidity; Cross-Sectional Studies; Frailty; Humans; Hypertension; Italy; Renin-Angiotensin System; Risk Assessment; Risk Factors; Severity of Illness Index; Sex Factors; Treatment OutcomeSettore MED/14 - Nefrologiabusiness.industryCOVID-19medicine.diseaseComorbiditySex-differences030104 developmental biologyCross-Sectional Studiesbusiness030217 neurology & neurosurgery
researchProduct

Virological response and retention in care according to time of starting ART in Italy: data from the Icona Foundation Study cohort

2020

Abstract Objectives To describe: (i) factors associated with rapid and delayed ART initiation; (ii) rates of 12 week virological response; and (iii) virologically controlled retention in care by 1 year from ART initiation according to timing of start in a real-life setting. Methods All individuals in the Icona cohort diagnosed with HIV in 2016–17 who initiated ART were grouped according to the time between HIV diagnosis and ART initiation: Group 1, ≤7 days; Group 2, 8–14 days; Group 3, 15–30 days; Group 4, 31–120 days; and Group 5, >120 days. Multivariable logistic regression models were used to identify factors associated with: (i) the probability of rapid (Group 1) and very delayed…

0301 basic medicinediagnosishivcommunicable diseasesHIV InfectionsLogistic regressionVirological responseCohort Studies0302 clinical medicineRetention in CareMedicinePharmacology (medical)HIV Infection030212 general & internal medicineProspective cohort studycd4 count determination proceduredrugsuppressionViral LoadCD4 Lymphocyte Count; Cohort Studies; Humans; Italy; Viral Load; Anti-HIV Agents; HIV Infections; Retention in CarevirologyInfectious DiseasesItalyblood hiv rnaCohorthiv cd4 count determination procedure communicable diseases incomeitaly diagnosis virology blood hiv rna retention in careincomeitalyViral loadHIV ARTCohort studyHumanMicrobiology (medical)medicine.medical_specialtyAnti-HIV Agentsantiretroviral therapySettore MED/17 - MALATTIE INFETTIVENO03 medical and health sciencesHIV viral loadInternal medicineHumansHIV CD4 ARTPharmacologybusiness.industrydouble blindAnti-HIV AgentHIV viral load antiretroviral therapy double blind initiation suppression infectionRetention in care030112 virologyinfectioninitiationCD4 Lymphocyte CountObservational studyCohort Studiebusiness
researchProduct