Analysis of dentine glycosaminoglycans using high-performance liquid chromatography

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Abstract
Puppy dentine was prepared using ultracentrifugation of tooth powder in organic density gradients. The glycosaminoglycans of the obtained tissue fraction were prepared after papain digestion andβ-elimination, using preparative chromatography on DEAE-cellulose and CPC-cellulose. These polysaccharide fractions were analyzed using highly sensitive HPLC procedures. One such HPLC procedure allowed hyaluronic acid to be determined in less than microgram amounts. The glycosaminoglycans thus prepared consisted only of chondroitin-4-sulfate, chondroitin-6-sulfate, and small amounts of highly hybridized dermatan sulfate, while the experiments failed to demonstrate even trace amounts of keratan sulfate, hyaluronic acid or heparan sulfate.

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