Abstract
The emerging wapiti industry in North America is based largely on markets for velvet antlers which are used in oriental medicine. Despite the economic opportunity, enthusiasm has been dampened by incomplete understanding of the chemical and pharmacological properties of velvet antler. This study characterizes polysaccharide constituents of glycosaminoglycans in growing antler of wapiti (Cervus elaphus). Glycosaminoglycans were isolated from four sections (tip, upper, middle and base) of growing antlers, and were studied using cellulose acetate electrophoresis, gel electrophoresis, enzymatic digestion and gel chromatography. The tip and upper sections of the antler which are rich in cartilaginous tissues contained chondroitin sulfate as a major glycosaminoglycan with small amounts of hyaluronic acid. In the middle and base sections containing bone and bone marrow, chondroitin sulfate was also a major glycosaminoglycan with small amounts of hyaluronic acid and chondroitinase-ACI resistant materials. More than half of chondroitin sulfate from the middle and base sections had larger molecular size than did the chondroitin sulfates from the tip and upper sections. Key words: Glycosaminoglycans, chondroitin sulfate, antler, wapiti
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