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  • Title: Regional distribution of water and glycosaminoglycan in immature articular cartilage.
    Author: Sweet MB, Thonar EJ, Immelman AR.
    Journal: Biochim Biophys Acta; 1977 Nov 07; 500(1):173-86. PubMed ID: 922036.
    Abstract:
    The distribution of water and glycosaminoglycan in different functional regions of bovine immature articular cartilage were studied. There was always more water in each articulating than in the corresponding growing zone, but there was less water in both zones in the areas of maximum contact. There was more hyaluronate and much more keratan sulphate in the articulating areas of maximum contact than in the minimum contact areas. In the growing zone the distribution of these two glycosaminoglycans did not vary as significantly but there was slightly more keratan sulphate in the area of maximum contact. Regional variations in chondroitin sulphate content were also present although not as striking as those of keratan sulphate. The results suggest that some keratan sulphate may be synthesized as a reaction to load.
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