title: Relationship between ABO and Secretor genotype with plasma levels of factor VIII and von Willebrand factor in thrombosis patients and control individuals.
abstract: In contrast to earlier reports, this study examined the relationship between plasma levels of factor VIII (FVIII) and von Willebrand factor (VWF) and ABO blood group and secretor status at the genetic level in 355 patients with venous thrombosis as well as in 236 controls. ABO glycosyl transferase alleles A(1) and B were more frequent in the thrombosis collective and alleles O(1), O(2) and A(2) were more frequent in the controls. A low-risk group for venous thrombosis of individuals with genotypes O(1)O(1), O(1)O(2) and O(1)A(2) (H-antigen rich) could be distinguished from a high-risk group with genotypes A(1)A(1), A(1)B, O(1)A(1) and O(1)B (H-antigen poor). In both the thrombosis and control groups, the H-antigen rich group showed significantly lower levels of FVIII coagulant activity (FVIII:C) and VWF antigen (VWF:Ag) than the H-antigen poor group. The frequency of the different secretor genotypes in the thrombosis group was not different from that in the control group. No significant differences of FVIII:C and VWF:Ag levels were seen between SeSe, Sese and sese individuals in the thrombosis and in the control group. Thus the risk of venous thrombosis is associated with the ABO blood group genotype but not with secretor status.
authors.affiliation: Abteilung für Transfusionsmedizin und Hämostaseologie, Klinikum der Ludwig-Maximilians-Universität München, Munich, Germany. M.Schleef@tm.med.uni-muenchen.de
authors.forename: Michael
authors.initials: M
authors.lastname: Schleef
authors.forename: Erwin
authors.initials: E
authors.lastname: Strobel
authors.forename: Andrea
authors.initials: A
authors.lastname: Dick
authors.forename: Josef
authors.initials: J
authors.lastname: Frank
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schramm
authors.forename: Michael
authors.initials: M
authors.lastname: Spannagl
mesh_terms: D000017:ABO Blood-Group System; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D002648:Child; D005169:Factor VIII / Q000032:analysis*; D005260:Female; D005647:Fucosyltransferases / Q000235:genetics; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D020246:Venous Thrombosis / Q000097:blood* / Q000235:genetics*; D014841:von Willebrand Factor / Q000032:analysis*; D000097631:Galactoside 2-alpha-L-fucosyltransferase
chemical_list: D000017:ABO Blood-Group System; D005169:Factor VIII; D005647:Fucosyltransferases; D014841:von Willebrand Factor; D000097631:Galactoside 2-alpha-L-fucosyltransferase