while short-term or long-term influence ( each at 100 micrograms/ml ) of chondroitin-4-sulfate , chondroitin-6-sulfate and hyaluronic acid resulted in a slight inhibition of incorporation of both radioactive precursors into cell-bound glycosaminoglycans , heparin ( between 20 and 500 micrograms/ml ) or heparan sulfate ( at 100 or 500 micrograms/ml ) significantly stimulated 14c-glycosamine incorporation into cell-bound glycosaminoglycans , what appeared to be predominantly into the hyaluronic acid fraction .
C0019143
heparan sulfate
C0017973
glycosaminoglycans