Search results for "human leucocyte antigen"

showing 4 items of 4 documents

The immunoglobulin γ marker 17 allotype and KIR/HLA genes prevent the development of chronic hepatitis B in humans

2020

Hepatitis B virus (HBV) infection causes a self-limiting disease in most individuals. However, < 10% of infected subjects develop a chronic disease. Genetic host variability of polymorphic genes at the interface of innate and acquired immunity, such as killer immunoglobulin-like receptors (KIR), their human leucocyte antigen (HLA) and IgG allotypes (GM), could explain this different clinical picture. We previously showed a protective role of the KIR2DL3 gene for the development of chronic hepatitis B (CHB), and a detrimental role of the KIR ligand groups, HLA-A-Bw4 and HLA-C2. We have expanded the previous analysis genotyping patients for GM23 and GM3/17 allotypes. The comparison of the …

0301 basic medicineHepatitis B virusKIR LigandImmunologyhepatitis B viruHuman leukocyte antigenHLA-C Antigensmedicine.disease_causeRisk Assessment03 medical and health sciences0302 clinical medicineHepatitis B ChronicGene FrequencyImmunoglobulin Gm AllotypesRisk Factorskiller immunoglobulin-like receptorImmunology and AllergyMedicineHumansGenetic Predisposition to DiseaseGenotypingHepatitis B virusSettore MED/04 - Patologia Generalebiologybusiness.industryOriginal ArticlesProtective FactorsAcquired immune systemAllotypeγ marker030104 developmental biologyPhenotypeHLA-B AntigensReceptors KIR2DL3Case-Control StudiesImmunologyHost-Pathogen Interactionsbiology.proteinGene polymorphismAntibodyhepatitis B virus; human leucocyte antigen; killer immunoglobulin-like receptor; ? markerbusiness030215 immunologyhuman leucocyte antigen

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Association between γ marker, human leucocyte antigens and killer immunoglobulin‐like receptors and the natural course of human cytomegalovirus infec…

2017

Natural killer (NK) cells provide a major defence against cytomegalovirus (HCMV) infection through the interaction of their surface receptors, including the activating and inhibitory killer immunoglobulin-like receptors (KIRs), and human leukocyte antigens (HLA) class I molecules. Also GM allotypes, able to influence the NK antibody-dependent cell-mediated cytotoxicity (ADCC), appear to be involved in the immunological control of virus infections, including HCMV. In some cases, their contribution requires epistatic interaction with other genes of the immune system, such as HLA. In the present report, with the aim to gain insight into the immune mechanisms controlling HCMV, we have studied t…

0301 basic medicineHuman cytomegalovirusGenotypeImmunologyPopulationCytomegalovirusPilot ProjectsHuman leukocyte antigenBiologyCohort Studies03 medical and health sciences0302 clinical medicineImmune systemReceptors KIRHLA Antigenskiller immunoglobulin-like receptormedicineImmunology and AllergyHumanshuman cytomegalovirueducationSicilySettore MED/04 - Patologia GeneraleAntibody-dependent cell-mediated cytotoxicityeducation.field_of_studynatural killerImmunosenescenceOriginal Articlesmedicine.diseaseVirologyγ markerTransplantationKiller Cells Natural030104 developmental biologyLogistic ModelsantibodieImmunologyCytomegalovirus Infectionsbiology.proteinAntibodyBiomarkershuman leucocyte antigen030215 immunology

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Relationship Between Human Leucocyte Antigen Class I and Class II and Chronic Idiopathic Urticaria Associated With Aspirin and/or NSAIDs Hypersensiti…

2006

Background. HLA genes play a role in the predisposition of several diseases. The aim was to analyze the prevalence of HLA class I phenotypes and HLA-DRB1*genotype in patients with CIU associated with ASA and NSAIDs hypersensitivity (AICU).Methods. 69 patients with AICU, and 200 healthy subjects.Results. Subjects with HLA-B44 and HLA-Cw5 antigens were more represented in patients with AICU than in control group. Subjects with HLA-A11, HLA-B13, HLACw4, and HLA-Cw7 antigen were more represented in control group than in patients with AICU. Multiple logistic regression demonstrated an association of HLA-Cw4 and HLA-Cw7 with a lower risk of AICU, whereas carriers of HLA-B44 phenotype had a higher…

AdultMaleSettore MED/09 - Medicina InternaChronic Idiopathic UrticariaGenotypeUrticariahuman leucocyte antigen class IImmunologyGenes MHC Class IIAnti-Inflammatory AgentsHuman leukocyte antigenLower riskDrug HypersensitivityResearch CommunicationAntigenGene FrequencyRisk FactorsGenotypelcsh:PathologyMedicineHumansAlleleAllele frequencyAllelesAspirinAspirinbusiness.industryAnti-Inflammatory Agents Non-SteroidalHistocompatibility Antigens Class ICase-control studyCell BiologyHLA-DR AntigensMiddle AgedNSAIDhuman leucocyte antigen class I; human leucocyte antigen class II; chronic idiopathic urticaria; aspirin; NSAIDs; hypersensitivityhuman leucocyte antigen class IIMHC Class IIPhenotypeGenesCase-Control StudiesImmunologyFemalehypersensitivityNon-Steroidalbusinesslcsh:RB1-214medicine.drugHLA-DRB1 ChainsMediators of Inflammation

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Clinical features and outcomes of patients with drug-induced autoimmune hepatitis: a retrospective cohort study.

2014

Abstract Background Drugs and herbal products can induce autoimmune hepatitis. We assessed frequency and clinical outcomes of patients suffering from drug-induced autoimmune hepatitis. Methods All patients with drug-induced liver injury admitted between 2000 and 2011 were retrospectively studied. Diagnoses of drug-induced autoimmune hepatitis and idiopathic autoimmune hepatitis were made according to simplified criteria. After discharge, all patients had regular follow-up and were contacted to update outcomes. Results Among 10,270 in-hospital patients, 136 (1.3%) were diagnosed with drug-induced liver injury. Among them, 12 (8.8%) were diagnosed as drug-induced autoimmune hepatitis (41.7% m…

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