title: Clinical significance of synovial fluid total hemolytic complement activity.
abstract: Total hemolytic complement (CH50) was measured in 174 synovial fluids (SF) to determine its diagnostic and and prognostic value. SF CH50 was reduced relative to serum CH50 in 61% of patients with rheumatoid arthritis and 60% of patients with crystal-induced arthritis. There was no correlation of SF CH50 levels with disease duration, SF leukocyte count, presence of IgM rheumatoid factor, or radiologic evidence of erosions.
mesh_terms: D016918:Arthritis, Reactive / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D002805:Chondrocalcinosis / Q000276:immunology; D003165:Complement System Proteins / Q000378:metabolism*; D006073:Gout / Q000276:immunology; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000276:immunology; D013582:Synovial Fluid / Q000276:immunology*
chemical_list: D003165:Complement System Proteins