Blood Group Antigens
Mostrando 1-12 de 253 artigos, teses e dissertações.
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1. Frequency of Rh and K antigens in blood donors in Riyadh
ABSTRACT Objectives: Investigate the prevalence of Rh and the K antigens and their phenotypes in the red blood cells of blood donors in Riyadh, Saudi Arabia. Methods: This is a retrospective study. The five principal Rh antigens (D, C, c, E, e) and the Kell antigen from the Kell blood group were tested in 4,675 random samples collected from four blood bank
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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2. Expression Levels of the CA9, WT1, and PRAME Genes and Genotyping-Associated Antigens for the Diagnosis and Prognosis of Colorectal Cancer
ABSTRACT Background Colorectal cancer (CRC) is the third most prevalent type of cancer worldwide, and is one of the major health problems in Asia, Africa, Europe, and America. The tumor antigens recently are of interesting indicators as diagnostic and prognostic tools, The aim of the present study is to detect the expression levels of carbonic anhydrase IX
Journal of Coloproctology (Rio de Janeiro). Publicado em: 2022
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3. Association between FY*02N.01 and the severity of COVID-19: initial observations
ABSTRACT Introduction The pro-inflammatory immune response underlies severe cases of COVID-19. Antigens of the Duffy blood group systems are receptors for pro-inflammation chemokines. The ACKR1 c.-67T>C gene variation silences the expression of Duffy antigens on erythrocytes and individuals presenting this variant in homozygosity have impaired inflammatory
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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4. Frequency of antigen Dia on the blood donor population of the Hemocenter coordinator of the Hemopa Foundation
ABSTRACT Introduction: Erythrocyte phenotyping is a very important test in the adoption of prophylactic measures to reduce transfusion reactions/alloimmunizations in polytransfused patients. The blood group Diego, in its current, form has 22 antigens, of which 4 are immunogenic, being Dia/Dib and Wra/Wrb, while the others are less expressive. The antigen Di
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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5. Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis
Abstract INTRODUCTION: Biomarkers are critical tools for finding new approaches for controlling the spread of tuberculosis (TB), including for predicting the development of TB therapeutics, vaccines, and diagnostic tools. METHODS: Expression of immune biomarkers was analyzed in peripheral blood cells stimulated and non-stimulated with M. tuberculosis ant
Rev. Soc. Bras. Med. Trop.. Publicado em: 16/05/2019
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6. Methods for blood group antigens detection: cost-effectiveness analysis of phenotyping and genotyping
Abstract Background Alloimmunization is a major problem in transfusion practice due to the clinical complications of the patients and the difficulty of choosing a unit of compatible blood product. Serological methods are widely used in blood banks, but they not always determine the phenotype. Thus, genotyping is an important complement to the serology tool
Hematol., Transfus. Cell Ther.. Publicado em: 15/04/2019
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7. Genotyping of Dombrock and Lutheran blood group systems in blood donors from the southwestern region of the state of Paraná, Southern Brazil
Abstract Background Lutheran and Dombrock are two blood group systems with low immunogenic antigens; they can cause mild-to-moderate transfusion reactions. For both, immunophenotyping is not performed in the pretransfusion routine in Brazil. In addition, the distribution of their antigenic frequencies is an important marker of ethnicity. Thus, the goal of t
Hematol., Transfus. Cell Ther.. Publicado em: 15/04/2019
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8. Lack of association between Kidd blood group system and chronic kidney disease
Abstract Background: The Kidd blood group system has three antigens, Jka, Jkb and Jk3, found on red blood cells and on endothelial cells of the inner lining of blood vessels in the renal medulla. These are known as urea transporter B (UT-B). Researchers have found that individuals carrying the Jk(a − b−) or Jk-null (UT-B null) phenotypes have a lower ur
Rev. Bras. Hematol. Hemoter.. Publicado em: 2017-12
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9. Structural diversity and biological importance of ABO, H, Lewis and secretor histo-blood group carbohydrates
ABSTRACT ABO, H, secretor and Lewis histo-blood system genes control the expression of part of the carbohydrate repertoire present in areas of the body occupied by microorganisms. These carbohydrates, besides having great structural diversity, act as potential receptors for pathogenic and non-pathogenic microorganisms influencing susceptibility and resistanc
Rev. Bras. Hematol. Hemoter.. Publicado em: 2016-12
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10. Study of possible clinical and laboratory predictors of alloimmunization against red blood cell antigens in cancer patients
Background: The inflammatory background of patients influences the process of alloimmunization against red blood cell antigens. Proof of this statement to clinical practice is still lacking. Objective: The aim of this study was to verify whether factors related to disease severity and inflammatory status of cancer patients can predict alloimmunization.
Rev. Bras. Hematol. Hemoter.. Publicado em: 2013
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11. An easy and efficient strategy for KEL genotyping in a multiethnic population
BACKGROUND: The Kell blood group system expresses high and low frequency antigens with the most important in relation to transfusion including the antithetic KEL1 and KEL2; KEL3 and KEL4; KEL6 and KEL7 antigens. Kell is a clinically relevant system, as it is highly immunogenic and anti-KEL antibodies are associated with hemolytic transfusion reactions and he
Rev. Bras. Hematol. Hemoter.. Publicado em: 2013
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12. Mycobacterium leprae virulence-associated peptides are indicators of exposure to M. leprae in Brazil, Ethiopia and Nepal
Silent transmission of Mycobacterium leprae, as evidenced by stable leprosy incidence rates in various countries, remains a health challenge despite the implementation of multidrug therapy worldwide. Therefore, the development of tools for the early diagnosis of M. leprae infection should be emphasised in leprosy research. As part of the continuing effort to
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-12