title: Increased frequency of HLA-Cw3 and HLA-Dw4 in rheumatoid arthritis.
abstract: Thirty-nine patients with rheumatoid arthritis were HLA typed for the full range of A and B locus specificities and for Cw3 and Dw4. HLA-Dw4 was significantly more frequent in patients (36%) than in controls (13%). The frequency of Cw3 was also increased, probably because this allele is in linkage disequilibrium with Dw4.
mesh_terms: D000483:Alleles; D001172:Arthritis, Rheumatoid / Q000235:genetics / Q000276:immunology*; D005260:Female; D005787:Gene Frequency; D008040:Genetic Linkage; D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006720:Homozygote; D006801:Humans; D008297:Male
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens