title: HLA-DR versus HLA-B5-CREG antigens in rheumatoid arthritis (RA).
abstract: Thirty caucasian patients suffering from classic erosive rheumatoid arthritis (RA), with a condition persisting for more than 8 years, were examined together with 67 healthy control subjects with regard to associations to HLA-DR and HLA-B-CREG antigens (B5-, B8-, B12-, B16- and B27-CREG). We found a significant correlation of seropositive RA (SPRA) with HLA-DR4 (9/14 patients = 64% chi 2 = 11.8, p less than 0.05), and seronegative RA (SNRA) with B5-CREG antigens (14/16 patients = 88%, chi 2 = 7.8, p less than 0.05). This HLA locus-differing association of SPRA and SNRA could, in addition to the known differences in clinicophenomenological parameters, be additional proof of the independent entity of these two forms of illness.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000145:classification / Q000235:genetics*; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D015235:HLA-B Antigens; D006681:HLA-D Antigens / Q000032:analysis*; D006684:HLA-DR Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D006680:HLA Antigens; D015235:HLA-B Antigens; C035270:HLA-B5 antigen; D006681:HLA-D Antigens; D006684:HLA-DR Antigens