Sökning: "blood group A glycosyltransferase"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden blood group A glycosyltransferase.

  1. 1. Elucidating Genetic and Biochemical Aspects of the P1 and Sda Carbohydrate Histo-Blood Group Antigens

    Författare :Linn Stenfelt; Avdelningen för hematologi och transfusionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood Group; P1 antigen; Sda antigen; A4GALT; B3GALNT2; glycosyltransferase; red blood cell; transfusion medicine;

    Sammanfattning : Human histo-blood groups are inherited polymorphic variants that occur in the molecular structures on the humanred blood cell (RBC) surface. Introducing foreign RBCs into a recipient lacking an antigen may activate the humoraldefence leading to a hemolytic transfusion reaction. LÄS MER

  3. 2. Genetics and Expression of Glycosphingolipids in the P1PK and GLOB Histo-Blood Group Systems

    Författare :Julia Westman; Avdelningen för hematologi och transfusionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; glycosphingolipid; glycosyltransferase; null allele; GLOB; P1PK; Blood group;

    Sammanfattning : The glycosphingolipid (GSL) antigens in the clinically important P1PK and GLOB blood group systems are present on erythrocytes as well as other tissues and are so-called histo-blood group antigens. Blood group antigens of carbohydrate nature are products of enzymes, so-called glycosyltransferases, adding sugars in a step-wise manner to an acceptor substrate. LÄS MER

  4. 3. Studies on the genetic basis of Pk, P and P1 blood group antigen expression

    Författare :Åsa Hellberg; Avdelningen för hematologi och transfusionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunologi; serology; serologi; transplantation; Immunology; SNP; phenotype; erythrocyte; blood group; glycosyltransferase;

    Sammanfattning : The clinically important carbohydrate P/GLOB blood group systems and collection give rise to both common (P1, P2) and rare (p, P1k, P2k) blood group phenotypes. The associated antibodies are implicated in severe transfusion reactions and recurrent spontaneous abortions. LÄS MER

  5. 4. Genetic Characterisation of Human ABO Blood Group Variants with a Focus on Subgroups and Hybrid Alleles

    Författare :Bahram Hosseini Maaf; Avdelningen för hematologi och transfusionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; glycosyltransferase; SNP; computer modelling; ABO genotyping; Immunology; serology; hybrid; Blood group ABO; transplantation; subgroup; Immunologi; serologi; rare O allele;

    Sammanfattning : ABO is the most important blood group system in transfusion medicine and transplantation immunology. The ABO blood groups differ by the presence or absence of antigens on RBCs and antibodies in plasma. Accurate determination of ABO status is critical. Genomic typing can increase the precision of blood group determination in complicated cases, e. LÄS MER

  7. 5. Biochemical studies of carbohydrate blood group antigens - Carbohydrate phenotype in relation to cellular glycosyltranferases

    Författare :Mette Diswall; Göteborgs universitet; []
    Nyckelord :glycosphingolipid; glycosyltransferase; genetic modification; carbohydrate; mass spectrometry; proton NMR spectroscopy; xenotransplantation; GalT-KO pig;

    Sammanfattning : The possibility to alter the cell surface carbohydrate expression by insertion or deletion of glycosyltransferase genes is a powerful technique to study the biological function of selected carbohydrate antigens. However, shifting the equilibrium between competing glycosyltransferases might lead to unexpected phenotypic effects, such as accumulation of other carbohydrate antigens and exposure of antigen structures that normally are cryptic or present in minute amounts on the cell surface. LÄS MER