Acidic Glycosaminoglycans in Human Esophagus Tissue

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Abstract
The constitution of acidic glycosaminoglycans (AGAG) in the normal human esophagi which were obtained at autopsy from 13 female subjects from 30-59 yr old was biochemically analyzed by the procedures such as resin chromatographic separation, electrophoretic characterization in 3 buffer systems and enzymic assay with chondroitinases and hyaluronidase. The main AGAG was hyaluronic acid which amounts to 1/2 of total AGAG, followed by heparan sulfates and dermatan sulfate 1/5 of total AGAG each, and small amounts of chondroitin-4- and -6-sulfates and oversulfated chondroitin sulfate. Heparin was not detected. A possible role of the esophageal AGAG was discussed.

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