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© 1973 Oxford University Press

research-article

PROTEIN/POLYSACCHARIDE RELATIONSHIPS IN TISSUES SUBJECTED TO REPEATED STRESS THROUGHOUT LIFE II. THE INTERVERTEBRAL DISC

D. A. HALL and F. B. REED

University of Leeds, Department of Medicine, General Infirmary Leeds

As indices of protein/polysaccharide relationships in intervertebral discs, moisture and collagen contents have been measured for both annulus and nucleus. The moisture content of the annulus, contrary to the observations of other workers, rises with age (above 30 years of age) whereas that of the nucleus falls with age. The collagen content of the annulus remains roughly constant throughout life until the seventh decade, thereafter rising rapidly. The nucleus on the other hand has a low collagen level throughout.

This evidence is discussed in the light of the relative degrees of solvation of individual glycosaminoglycans and the possibility of the formation of protein/polysaccharide complexes.


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