title: Hashimoto's thyroiditis and HLA in Japanese.
abstract: To investigate genetic factors involved in the pathogenesis of Hashimoto's thyroiditis (HT; goitrous autoimmune thyroiditis), HLA class I and class II antigens were analyzed in both seropositive HT (99 patients) and seronegative HT (43 patients). The frequency of HLA-DRw53 antigen was increased significantly in both seropositive HT (antigen frequency, 0.83; relative risk, 33.3; P less than 0.0002; corrected P less than 0.001) and seronegative HT (antigen frequency, 0.81; relative risk, 3.02; P less than 0.01; corrected P less than 0.05). The etiological fraction values for HLA-DRw53 in seropositive HT and seronegative HT were 0.58 and 0.54, respectively. An increased frequency of HLA-DQw4 and a decreased frequency of HLA-DQw1 were observed in patients with seronegative HT. These data suggest that susceptibility to HT is primarily associated with HLA-DRw53 and that HLA-DQ alleles may control the production of autoantibodies to the thyroid gland. The mode of inheritance of disease susceptibility for HT (controlled by a major gene in linkage disequilibrium with HLA-DRw53) was investigated by the method of Thomson and Bodmer, and it was suggested that disease susceptibility was inherited in a dominant manner.
authors.affiliation: Department of Genetics, Faculty of Medicine, Kyushu University, Fukuoka Japan.
authors.forename: K
authors.initials: K
authors.lastname: Honda
authors.forename: H
authors.initials: H
authors.lastname: Tamai
authors.forename: T
authors.initials: T
authors.lastname: Morita
authors.forename: K
authors.initials: K
authors.lastname: Kuma
authors.forename: Y
authors.initials: Y
authors.lastname: Nishimura
authors.forename: T
authors.initials: T
authors.lastname: Sasazuki
mesh_terms: D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D006650:Histocompatibility Testing; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012698:Serologic Tests; D013967:Thyroiditis, Autoimmune / Q000276:immunology*
chemical_list: D006680:HLA Antigens