these 4 m guanidinium chloride soluble , cold water soluble protein fractions initiate a dose-dependent increase in the amount of cartilage formed following an 8-10 day continuous exposure as evidenced by the presence of greater numbers of chondrocytes when viewed with phase optics , more intense toluidine blue metachromatic staining in fixed plates and elevated 35s-sulfate incorporation into the cell layer ( as a maker for proteoglycan biosynthesis ) .
C0225369
chondrocytes
C0007634
cell