title: Molecular genetic analysis of HLA-DRB, -DQA, and -DQB polymorphisms in Hungarians and distribution of the DRB1*03 allele in adults and newborns.
abstract: We describe here the genetic variability of HLA-DRB1, -DQA, and -DQB in 140 healthy individuals from Hungary, including 95 randomly selected adults and 45 newborns. Allele and haplotype frequencies as well as linkage disequilibria were calculated. It was found that HLA-DRB1*11, -DQA1*0501, and -DQB1*0301 predominate in Hungarians. This information may be helpful in the future for HLA and disease association studies. Simultaneously, we observed that the frequency of the DRB1*03 allele differs between adults and newborns. Since it is well known that bearers of HLA-DR3 (and/or B8) antigens may display significant changes in immune parameters, the lower frequency in adults indicates that children with the DR3 antigen are predisposed to immune diseases in adulthood.
authors.affiliation: Albert Szent-Györgyi Medical University, Blood Transfusion Centre, Szeged, Hungary. varga@blood.szote.u.-szeged.hu
authors.forename: E
authors.initials: E
authors.lastname: Varga
authors.forename: E
authors.initials: E
authors.lastname: Endreffy
authors.forename: G
authors.initials: G
authors.lastname: Samu
authors.forename: E
authors.initials: E
authors.lastname: Szekeres
authors.forename: F
authors.initials: F
authors.lastname: Tóth
authors.forename: O
authors.initials: O
authors.lastname: Bede
authors.forename: I B
authors.initials: IB
authors.lastname: Petri
mesh_terms: D000293:Adolescent; D000328:Adult; D000483:Alleles; D005787:Gene Frequency / Q000235:genetics; D006683:HLA-DQ Antigens / Q000235:genetics*; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006239:Haplotypes / Q000235:genetics; D006801:Humans; D006814:Hungary / Q000208:ethnology; D007231:Infant, Newborn; D008875:Middle Aged; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D006683:HLA-DQ Antigens; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; C069050:HLA-DQA1 antigen; C057615:HLA-DQbeta antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains