A method for the quantification of cartilage proteoglycan structures liberated to the synovial fluid during developing degenerative joint disease
- 1 January 1985
- journal article
- research article
- Published by Taylor & Francis in Scandinavian Journal of Clinical and Laboratory Investigation
- Vol. 45 (5), 421-427
- https://doi.org/10.1080/00365518509155238
Abstract
An enzyme linked immunosorbent assay for the quantification of proteoglycans or proteoglycan fragments in biological fluids is presented. The assay has been used to determine concentrations of articular cartilage proteoglycans and/or fragments thereof in synovial fluid in early stages of osteoarthrosis. Osteoarthrosis was induced in one knee joint of nine German wire haired pointers by transection of the anterior cruciate ligament. All dogs developed osteoarthrosis in terms of macroscopic as well as microscopic criteria. Attempts were made to aspirate synovial fluid, prior to surgery and at various times in the postoperative period, from the joint operated on as well as from the contralateral joint. Concentrations of proteoglycans (fragments) of one type of aggregating proteoglycan were significantly higher in the synovial fluid samples from the joint operated on compared to the contralateral joint (p<0.001), while the difference observed when the other type of aggregating proteoglycan was used as the test antigen was less significant (p<0.05). The concentration of proteoglycans (fragments) in synovial fluid samples from joints operated on was significantly higher after the operation when compared with the preoperative concentration (p<0.001). No correction has been made for the increased dilution due to hydrops of the joints operated on.Keywords
This publication has 9 references indexed in Scilit:
- Separation and characterization of two populations of aggregating proteoglycans from cartilageBiochemical Journal, 1985
- Articular Cartilage Proteoglycans in Aging and OsteoarthritisPublished by Elsevier ,1982
- Immunochemical analysis of cartilage proteoglycans. Radioimmunoassay of the molecules and the substructuresBiochemical Journal, 1980
- Variability in the adsorption properties of microtitre plates used as solid supports in enzyme immunoassay.Clinical Chemistry, 1980
- Immunochemical analysis of cartilage proteoglycans. Antigenic determinants of substructuresBiochemical Journal, 1979
- Synthesis of sulphated proteoglycans by rheumatoid and normal synovial tissue in culture.Annals Of The Rheumatic Diseases, 1979
- Experimentally-induced osteoarthritis in the dog.Annals Of The Rheumatic Diseases, 1973
- Chondroitin sulphate in the normal and rheumatoid synovial fluidClinica Chimica Acta; International Journal of Clinical Chemistry, 1972