with 35so4 to measure newly synthesized proteoglycan , we found that chondrocytes derived from osteoarthritic cartilage secreted significantly less ( p less than 0.05 ) high density proteoglycan into the culture medium than did chondrocytes from nonarthritic cartilage after 20 hr of radiolabeling .
C0225369
chondrocytes
C0007301
cartilage