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  • Title: [Immunological findings in serum and synovial fluid in patients with rheumatoid arthritis (author's transl)].
    Author: Stojan B, Hasler F.
    Journal: Wien Klin Wochenschr; 1977 Nov 11; 89(21):713-6. PubMed ID: 919557.
    Abstract:
    Sera and synovial fluid were investigated in 45 patients with rheumatoid Arthritis and 50 patients with osteoarthritis in inflammatory exacerbation (control group). The following tests were performed: IgG, IgM, IgA determinations, complement components C3, C3, C4, C3-proactivator, ceruloplasmin, electrophoresis, LDH and total acid phosphatase. 1. Serum levels of the ceruloplasmin, alpha 1, alpha 2 and gamma fractions of electrophoresis are significantly higher in patients with rheumatoid arthritis than in patients with osteoarthritis. 2. Synovial fluid: a) There is a significantly higher concentration of IgG, IgM, IgA, C3-proactivator and total acid phosphatase in the synovial fluid of patients with rheumatoid arthritis. b) C4 is significantly lower in patients with rheumatoid arthritis. c) Both groups were also compared with the help of a point system. Every patient received a plus point when the following criteria were seen: IgM greater than 150 mg/100 ml, C3 greater than 50 mg/100 ml, ceruloplasmin greater than 35 mg/100 ml, alpha 1 greater than 0.21 g%, alpha 2 greater than 0.44 g%, beta greater than 0.60 g% and gamma fraction on electrophoresis greater than 0.90 g%. Another point was added if the criteria ceruloplasmin greater than 22 mg/100 ml and C4 less than 17 mg/100 ml were simultaneously seen. With the help of this points system 48 out of the 50 osteoarthritis patients (96%) received zero points, one received 1 point and one 2 points, as opposed to the patients with rheumatoid arthritis where 35 out of 45 (78%) received one or more points. d) The differentation is not improved through additional testing of the rheumatic factors.
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