Serum and Synovial Fluid Proteins in Arthritis

Serum and synovial fluid proteins in arthritis.

Synovial fluid is generally considered to be a dialysate of plasma to which mucin has been added during its passage through the synovial membrane (Ropes and Bauer, 1953). The proteins of the serum and synovial fluid have been shown to be qualitatively identical (Schmid and MacNair, 1956) and the concentrations of the various proteins in synovial fluid probably depend upon the following factors:...

The electrophoretic patterns of proteins in synovial fluid and serum in rheumatoid arthritis.

The electrophoretic patterns of plasma obtained from patients with rheumatoid arthritis have been described by many investigators and are discussed in the preceding paper (1). The electrophoretic distribution of proteins in synovial fluid has been studied less extensively (2-5). It seemed of interest, therefore, to determine the various patterns which may occur in joint fluid of patients with r...

Comparative Measurement of Rheumatoid Factor in Serum and Synovial Fluid of Rheumatoid Arthritis Patients by ELISA and Latex-Agglutination Test

Rheumatoid factors (RF) are autoantibodies with specificity for the Fc portion of human IgG. Production of RF is a characteristic feature of rheumatoid arthritis (RA) and is detectable in high titer in about 90% of these patients. In this study, we measured total IgM, IgA, IgMRF and IgARF in serum and synovial fluid of 45 RA patients by ELISA and the results were compared with those obtained b...

Serum and synovial fluid adenosine deaminase activity in patients with rheumatoid arthritis, osteoarthritis, and reactive arthritis.

Adenosine deaminase activity was determined in paired samples of serum and synovial fluid taken from patients with rheumatoid arthritis (n = 12), reactive arthritis (n = 13), and osteoarthritis (n = 7), and the value of this investigation in the diagnosis of synovial swellings was assessed. Increased activity was found in the synovial fluid taken from patients with rheumatoid disease and reacti...

Synovial Fluid in Patients with Lyme Arthritis