Search results for "Host"

showing 10 items of 1982 documents

Echinostoma caproni: intestinal pathology in the golden hamster, a highly compatible host, and the Wistar rat, a less compatible host.

2005

The histopathological changes induced by Echinostoma caproni (Trematoda: Echinostomatidae) in a high (golden hamster) and a low compatible host (rat) were compared at 15 and 30 days post-infection. Infection of rats was characterized by a progressive increase in erosion of villi and elevated numbers of goblet cells, which could be related to the early expulsion of the parasite in a host of low compatibility. In contrast to rats, the number of goblet cell in E. caproni-infected hamsters was low, but increased numbers of neutrophils and mesenteric inflammatory cells were observed. This indicated that local inflammatory responses in hamsters were greater than in rats. An immunohistochemical st…

MalePathologymedicine.medical_specialtyImmunologyHamsterHost-Parasite InteractionsIntestinal mucosaAntigenSpecies SpecificityCricetinaeEchinostomamedicineAnimalsIntestinal Diseases ParasiticRats WistarGoblet cellAnalysis of VarianceEchinostomiasisbiologyMesocricetusGeneral Medicinebiology.organism_classificationRatsIntestinesInfectious Diseasesmedicine.anatomical_structureAntigens HelminthImmunoglobulin GInterleukin 13ParasitologyGoblet CellsEchinostomaMesocricetusGolden hamsterExperimental parasitology
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Human Epidermal Langerhans Cells Replenish Skin Xenografts and Are Depleted by Alloreactive T Cells In Vivo

2011

Abstract Epidermal Langerhans cells (LC) are potent APCs surveying the skin. They are crucial regulators of T cell activation in the context of inflammatory skin disease and graft-versus-host disease (GVHD). In contrast to other dendritic cell subtypes, murine LC are able to reconstitute after local depletion without the need of peripheral blood-derived precursors. In this study, we introduce an experimental model of human skin grafted to NOD-SCID IL2Rγnull mice. In this model, we demonstrate that xenografting leads to the transient loss of LC from the human skin grafts. Despite the lack of a human hematopoietic system, human LC repopulated the xenografts 6 to 9 wk after transplantation. By…

MalePathologymedicine.medical_specialtyT cellCellular differentiationTransplantation HeterologousImmunologyGraft vs Host DiseaseMice TransgenicHuman skinMice SCIDCD8-Positive T-LymphocytesBiologyLymphocyte ActivationMiceCell MovementMice Inbred NODIn vivomedicineAnimalsHumansImmunology and AllergyCells CulturedCell ProliferationMice KnockoutCell Deathintegumentary systemEpidermis (botany)Cell DifferentiationSkin TransplantationDendritic cellTransplantationDisease Models AnimalHaematopoiesismedicine.anatomical_structureLangerhans CellsCancer researchFemaleEpidermisThe Journal of Immunology
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Pathogenic factors in recurrent urinary tract infections and renal scar formation in children

1986

MalePathologymedicine.medical_specialtybusiness.industryUrinary systemInfantHost factorsCicatrixRecurrenceUrinary Tract InfectionsPediatrics Perinatology and Child HealthRenal scarsmedicineRenal scarHumansFemaleKidney DiseasesChildbusinessEuropean Journal of Pediatrics
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Multicentre Italian study of SARS-CoV-2 infection in children and adolescents, preliminary data as at 10 April 2020

2020

Data on features of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in children and adolescents are scarce. We report preliminary results of an Italian multicentre study comprising 168 laboratory-confirmed paediatric cases (median: 2.3 years, range: 1 day–17.7 years, 55.9% males), of which 67.9% were hospitalised and 19.6% had comorbidities. Fever was the most common symptom, gastrointestinal manifestations were frequent; two children required intensive care, five had seizures, 49 received experimental treatments and all recovered.

MalePediatricsEpidemiologyProtease InhibitorComorbiditymedicine.disease_causeClinical Laboratory TechniqueSevere Acute Respiratory SyndromeDisease OutbreaksFeces0302 clinical medicineSettore MED/38 - Pediatria Generale E SpecialisticaCOVID-19 TestingRetrospective StudiePandemic030212 general & internal medicineViralChildCoronavirusPediatricDisease OutbreakCoinfectionHospitals PediatricSettore MED/38HospitalsDiarrheaTreatment OutcomeSARS-CoV-2 infection; children; covid-19; hydroxychloroquine; pneumonia; Adolescent; Antiviral Agents; Betacoronavirus; COVID-19; COVID-19 Testing; Child; Child Preschool; Chronic Disease; Clinical Laboratory Techniques; Coinfection; Comorbidity; Coronavirus; Coronavirus Infections; Diarrhea; Disease Outbreaks; Feces; Female; Fever; Hospitals Pediatric; Humans; Immunocompromised Host; Infant; Infant Newborn; Italy; Male; Noninvasive Ventilation; Pandemics; Pneumonia Viral; Protease Inhibitors; Retrospective Studies; SARS-CoV-2; Severe Acute Respiratory Syndrome; Treatment OutcomeItalyChild PreschoolCoinfectionFemalemedicine.symptomCoronavirus InfectionsRapid CommunicationHumanDiarrheamedicine.medical_specialtyCOVID-19; ItalyhydroxychloroquineAdolescentFeverCoronaviruPneumonia ViralAntiviral Agents03 medical and health sciencesBetacoronavirusImmunocompromised Hostchildren030225 pediatricsVirologyIntensive caremedicineHumanspneumoniaProtease InhibitorsPreschoolPandemicsRetrospective StudiesAntiviral Agentchildren; covid-19; hydroxychloroquine; pneumonia; SARS-CoV-2 infection; Adolescent; Antiviral Agents; Betacoronavirus; Child; Child Preschool; Chronic Disease; Clinical Laboratory Techniques; Coinfection; Comorbidity; Coronavirus; Coronavirus Infections; Diarrhea; Disease Outbreaks; Feces; Female; Fever; Hospitals Pediatric; Humans; Immunocompromised Host; Infant; Infant Newborn; Italy; Male; Noninvasive Ventilation; Pandemics; Pneumonia Viral; Protease Inhibitors; Retrospective Studies; Severe Acute Respiratory Syndrome; Treatment OutcomeNoninvasive VentilationBetacoronaviruPandemicbusiness.industryClinical Laboratory TechniquesCoronavirus InfectionSARS-CoV-2pneumonia.SARS-CoV-2 infectionPublic Health Environmental and Occupational HealthInfant NewbornCOVID-19InfantRetrospective cohort studymedicine.diseaseNewbornComorbidityCoronavirusPneumoniaChronic DiseaseFecebusiness
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Differences among young adults, adults and elderly chronic myeloid leukemia patients

2014

Abstract BACKGROUND: The incidence of chronic myeloid leukemia (CML) increases with age, but it is unclear how the characteristics of the disease vary with age. In children, where CML is very rare, it presents with more aggressive features, including huge splenomegaly, higher cell count and higher blast cell percentage. PATIENTS AND METHODS: To investigate if after childhood the disease maintains or loses these characteristics of aggressiveness, we analyzed 2784 adult patients, at least 18 years old, registered by GIMEMA CML WP over a 40-year period. RESULTS: Young adults (YAs: 18-29 years old) significantly differed from adults (30-59 years old) and elderly patients (at least 60 years old)…

MalePediatricsHost responseBCR-ABL; Chronic myeloid leukemia; Prognosis; Tyrosine kinase inhibitors; Young adults; Adult; Age Factors; Aged; Aged 80 and over; Antineoplastic Agents; Female; Humans; Leukemia Myelogenous Chronic BCR-ABL Positive; Male; Middle Aged; Prospective Studies; Protein Kinase Inhibitors; Protein-Tyrosine Kinases; Spleen; Splenomegaly; Young Adult; Oncology; HematologyTyrosine kinase inhibitorDiseaseAntineoplastic AgentTyrosin kinase inhibitorProtein-Tyrosine Kinasehemic and lymphatic diseases80 and overAge FactorProspective StudiesYoung adultChronicBCR-ABLAged 80 and overLeukemiaIncidence (epidemiology)Chronic myeloid leukemiaAge FactorsMyeloid leukemiaHematologyMiddle AgedProtein-Tyrosine KinasesPrognosisLeukemiaOncologybcr-abl1FemaleBCR-ABL; chronic myeloid leukemia; prognosis; tyrosine kinase inhibitors; young adultsHumanAdultyoung adultsmedicine.medical_specialtyPrognosiProtein Kinase InhibitorAntineoplastic Agentschronic myeloid leukemia; bcr-abl1; Tyrosin kinase inhibitor; prognosis; young adultsNOYoung Adultchronic myeloid leukemiaLeukemia Myelogenous Chronic BCR-ABL PositivemedicineHumansBCR-ABL; Chronic myeloid leukemia; Prognosis; Tyrosine kinase inhibitors; Young adults; Adult; Age Factors; Aged; Aged 80 and over; Antineoplastic Agents; Female; Humans; Leukemia Myelogenous Chronic BCR-ABL Positive; Male; Middle Aged; Prospective Studies; Protein Kinase Inhibitors; Protein-Tyrosine Kinases; Spleen; Splenomegaly; Young AdultProtein Kinase InhibitorsAgedTyrosine kinase inhibitorsAdult patientsbusiness.industrymedicine.diseaseClinical trialBCR-ABL; Chronic myeloid leukemia; Prognosis; Tyrosine kinase inhibitors; Young adults; Adult; Age Factors; Aged; Aged 80 and over; Antineoplastic Agents; Female; Humans; Leukemia Myelogenous Chronic BCR-ABL Positive; Male; Middle Aged; Prospective Studies; Protein Kinase Inhibitors; Protein-Tyrosine Kinases; Spleen; Splenomegaly; Young Adult; Hematology; OncologyProspective StudieBCR-ABL; Chronic myeloid leukemia; Prognosis; Tyrosine kinase inhibitors; Young adults; Adult; Age Factors; Aged; Aged 80 and over; Antineoplastic Agents; Female; Humans; Leukemia Myelogenous Chronic BCR-ABL Positive; Male; Middle Aged; Prospective Studies; Protein Kinase Inhibitors; Protein-Tyrosine Kinases; Spleen; Splenomegaly; Young Adult; Medicine (all); Hematology; OncologyImmunologySplenomegalyBCR-ABL PositiveBCR-ABL chronic myeloid leukemia prognosis tyrosine kinase inhibitors young adultsprognosisbusinessSpleenYoung adultsMyelogenous
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The Human Leukocyte Antigen-DPB1 Degree of Compatibility Is Determined by Its Expression Level and Mismatch Permissiveness: A German Multicenter Anal…

2021

T-cell epitope matching according to the TCE3 algorithm classifies HLA-DPB1 mismatches in permissive and non-permissive. This classification has been shown to be predictive for mortality and acute GvHD (aGvHD) events in large international cohorts. We retrospectively genotyped HLA-DPB1 in 3523 patients transplanted in Germany between 2000 and 2014 and in their unrelated donors using an Illumina amplicon-NGS based assay. Aim of the study was to evaluate DP-compatibility beyond the established TCE3 algorithm by assessing the combined effect of several DP-mismatch parameters on post-transplant outcome. We implemented an extended DP-mismatch assessment model where TCE3, DP allotype expression w…

MalePermissivenessOncologyGraft vs host diseaseEpitopes T-LymphocyteGraft vs Host DiseaseKaplan-Meier Estimategraft-versus-host-disease0302 clinical medicineGermanyImmunology and AllergyChild3' Untranslated RegionsHLA-DP beta-ChainsBone Marrow TransplantationOriginal Research0303 health sciencesHistocompatibility TestingIncidenceStem cell transplantationMiddle AgedAllograftsAllotype3. Good healthHLA-DPB1Child PreschoolHistocompatibility030220 oncology & carcinogenesisFemaleUnrelated Donorslcsh:Immunologic diseases. AllergyAdultRiskmedicine.medical_specialtyAdolescentImmunologyGraft vs Leukemia EffectHuman leukocyte antigenPolymorphism Single Nucleotidestem cell transplantationRelapse free survivalLymphocyte DepletionYoung Adult03 medical and health sciencesInternal medicinemedicineHumansTransplantat-Wirt-Reaktionddc:610PermissivePeriphere StammzellentransplantationAllelesAgedRetrospective Studies030304 developmental biologyPeripheral Blood Stem Cell TransplantationHLA-DPB1Donor selectionbusiness.industryInfant NewbornModels ImmunologicalInfantmedicine.diseaseGraft-versus-host diseaseHLA-DPB1-permissivenessHLA-DPB1 expressionlcsh:RC581-607businessFrontiers in Immunology
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Host-parasite relationships of Zootoca vivipara (Sauria: Lacertidae) in the Pyrenees (North Spain)

2000

The helminths infesting the common lizard, Zootoca vivipara (Jacquin, 1787), were studied with special attention to the relations between the number of nematodes, Oswaldocruzia filiformis (Goeze, 1782), and the size, sex and age class of the host. The possible seasonality of the parasite intensity and the relationship with the feeding habits of the host were also tested. Helminth infracommunities of Z. vivipara were depauperate with lizards harbouring only two species, the trematode Plagiorchis molini (Lent et Freitas, 1940) and the nematode O. filiformis. A positive correlation between host size and the number of O. filiformis was found for female Z. vivipara. However, no correlation was d…

MalePlagiorchisfood.ingredientNematodaPopulationBiologyHost-Parasite Interactionsfoodbiology.animalparasitic diseasesHelminthsLacertidaeParasite hostingAnimalsSauriaeducationNematode Infectionseducation.field_of_studyHost (biology)LizardEcologyLizardsbiology.organism_classificationSpainParasitologyFemale
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Differential phenoloxidase activity between native and invasive gammarids infected by local acanthocephalans: differential immunosuppression?

2003

Manipulative endoparasites can alter the behaviour and the physiology of their intermediate hosts in ways that increase the probability of successful transmission to the final host. This requires that the parasite is able to circumvent its host's immune defence. Successful immune evasion may depend on host-parasite coevolutionary history and the appearance of new hosts invading the local host population may promote local parasite maladaptation. To test this hypothesis, we examined the effect of 2 acanthocephalan parasites, Pomphorhynchus laevis and Polymorphus minutus, on the immunity of their local and new invasive gammarid intermediate hosts, respectively Gammarus pulex and Gammarus roese…

MalePopulationZoologyAcanthocephalaHost-Parasite InteractionsImmune systemImmunityGammarus roeseliCrustaceaHemolymphAnimalseducationMaladaptationImmunosuppression Therapyeducation.field_of_studybiologyHost (biology)Monophenol Monooxygenasebiology.organism_classificationGammarus pulexInfectious DiseasesRegression AnalysisAnimal Science and ZoologyParasitologyPomphorhynchus laevisFemaleFranceParasitology
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Zygocotyle lunata: Proteomic analysis of the adult stage

2011

The somatic extract of Zygocotyle lunata (Trematoda: Paramphistomidae) adults collected from experimentally infected mice was investigated using a proteomic approach to separate and identify tryptic peptides from the somatic extract of Z. lunata adult worms. A shot-gun liquid chromatography/tandem mass spectrometry procedure was used. We used the MASCOT search engine (Matrix-Science) and ProteinPilot software v2.0 (Applied Biosystems) for the database search. A total of 36 proteins were accurately identified from the worms. The largest protein family consisted of metabolic enzymes. Structural, motor and receptor binding proteins and proteins related to oxygen transport were identified in th…

MaleProteomeProtein familySomatic cellImmunologyTrematode InfectionsBiologyBioinformaticsTandem mass spectrometryHost-Parasite InteractionsMiceTandem Mass SpectrometryAnimalsParasite hostingDatabase search engineParamphistomatidaeDatabases ProteinMice Inbred BALB COxygen transportHelminth ProteinsGeneral Medicinebiology.organism_classificationInfectious DiseasesBiochemistryProteomeParasitologyTrematodaChromatography LiquidExperimental Parasitology
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Proteomic analysis of the somatic and surface compartments from Dirofilaria immitis adult worms.

2014

31 páginas, 1 tabla, 4 figuras.-- The definitive version is available at http://www.elsevier.com

MaleProteomicsPathologymedicine.medical_specialtyProteomeSomatic cellDirofilaria immitisDirofilaria immitisProteomicsGenomeMicrobiologyTranscriptomeImmune systemmedicineParasite hostingAnimalsSomaticCATSGeneral VeterinarybiologyGeneral MedicineHelminth Proteinsbiology.organism_classificationSurfaceProtein TransportGene Expression RegulationAntigens SurfaceParasitologyFemaleVeterinary parasitology
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