title: HLA and immunoglobulin allotypes in mixed connective tissue disease.
abstract: A group of patients with mixed connective tissue disease (MCTD) were HLA and immunoglobulin allotyped. We found that the incidence of DR4 in the patient group was increased compared with that in the normal controls, but the increase was restricted to the subgroup of patients with arthritis. The age at onset of MCTD was lower in patients with DR4 and higher in patients with DR2 compared with patients who did not have these antigens. A1, B8, and DR3 were more frequent, but not significantly so, in the MCTD patient group. We also found that there was a significant perturbation of the Gm allotype frequencies in patients with MCTD.
authors.affiliation: Department of Rheumatology, West Middlesex University Hospital, Isleworth, UK.
authors.forename: C M
authors.initials: CM
authors.lastname: Black
authors.forename: P J
authors.initials: PJ
authors.lastname: Maddison
authors.forename: K I
authors.initials: KI
authors.lastname: Welsh
authors.forename: R
authors.initials: R
authors.lastname: Bernstein
authors.forename: J C
authors.initials: JC
authors.lastname: Woodrow
authors.forename: R S
authors.initials: RS
authors.lastname: Pereira
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006680:HLA Antigens / Q000032:analysis* / Q000145:classification; D006801:Humans; D007126:Immunoglobulin Allotypes / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D007129:Immunoglobulin Gm Allotypes / Q000235:genetics / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D008947:Mixed Connective Tissue Disease / Q000235:genetics / Q000276:immunology* / Q000378:metabolism; D010641:Phenotype
chemical_list: D006680:HLA Antigens; D007126:Immunoglobulin Allotypes; D007129:Immunoglobulin Gm Allotypes