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  • Title: Increased release of matrix components from articular cartilage in experimental canine osteoarthritis.
    Author: Ratcliffe A, Billingham ME, Saed-Nejad F, Muir H, Hardingham TE.
    Journal: J Orthop Res; 1992 May; 10(3):350-8. PubMed ID: 1569498.
    Abstract:
    The release rates of specific components of the proteoglycan aggregates (G1 domain, the chondroitin sulfate and keratan sulfate containing portion of the protein core, and link protein) of the articular cartilage of mature beagles were studied at early stages of canine experimental osteoarthritis (OA), generated by transection of the anterior cruciate ligament. Analysis of cartilage explants and synovial fluids indicates that at early stages of experimental OA, there is increased release of the proteoglycan aggregates of the articular cartilage. This involves a release from the tissue of the components of the proteoglycan that are specifically involved with aggregation together with the glycosaminoglycans of the proteoglycan. These components were detected at elevated levels in the media of explants of cartilage from the operated joint, and in the synovial fluids of the operated joints.
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