Results: 9

The relevance of a bank with genotyped platelets donors

ABSTRACT Objective: Describe the clinical and laboratory characteristics and the transfusion strategy of patients at Hospital Israelita Albert Einstein with platelet refractoriness and identify their etiological characteristics. Standardize the platelet immunofluorescence technique by flow cytometry as ...

Platelet antibodies identification: comparison between two laboratory tests

ABSTRACT Introduction: Platelet antibody identification is indispensable for diagnosing the human platelet antigen (HPA) or human leukocyte antigen (HLA) immunization, mostly because it can restrict the compatibility and results of transfusions. Correct detection of these antibodies is of utmost importa...

Human platelet antigen-3 polymorphism as a risk factor for rheumatological manifestations in hepatitis C

Abstract INTRODUCTION: Hepatitis C virus (HCV) infection is involved in the pathogenesis of autoimmune and rheumatic disorders. Although the human platelet antigens (HPA) polymorphism are associated with HCV persistence, they have not been investigated in rheumatological manifestations (RM). This study ...

Introducción del genotipaje molecular de los antigenos plaquetarios
Introduction of molecular genotypingof plateles antigens

Introducción: Los antígenos plaquetarios humanos (HPA) se expresan en 6 glucoproteínas plaquetarias diferentes. Se ha descrito que estos antígenos pueden estimular la producción de aloanticuerpos una vez expuestos a plaquetas humanas con diferentes HPA, lo que provoca complicaciones clínicas como l...

Anticuerpos antiplaquetarios en pacientes cubanos en espera de trasplante renal

Introducción: Los antígenos específicos de plaquetas, conocidos como antígenos de plaquetas humanas (HPA, del inglés human platelet antigens), se incluyen dentro del espectro de antígenos de histocompatibilidad no-HLA, debido a que los anticuerpos anti-HPA participan en el rechazo del trasplante, a...

Allele and haplotype frequencies of human platelet and leukocyte antigens in platelet donors

Einstein (Säo Paulo); 17 (1), 2019
ABSTRACT Objective To described the allele and haplotype frequencies of human leukocyte antigen genes at the -A, -B loci and human platelet antigen genes for human platelet antigen systems 1 to 9, 11 and 15 in blood. Methods We included 867 healthy unrelated volunteer donors who donated platelets bet...

HPA-1a/1b could be considered a molecular predictor of poor prognosis in chronic hepatitis C

Abstract INTRODUCTION: HPA polymorphism has been associated with HCV presence and fibrosis progression in chronic hepatitis C. However, it is unknown if there is an association between HPA-1 polymorphism and hepatocellular carcinoma (HCC). Therefore, this study aimed to evaluate HPA-1 polymorphism in t...

Molecular typing of human platelet antigens in immune thrombocytopenia patients in northern Brazil

ABSTRACT Background: Immune thrombocytopenia is an immune disease characterized by thrombocytopenia and bleeding due to platelet antibodies against platelet membrane glycoproteins. Human platelet antigens are derived from polymorphisms of these glycoproteins. The aim of this study was to investigate hum...

Natural history of liver fibrosis progression in patients confected with hepatitis c virus and human immunodeficiency virus type 1