thus , the present study clearly shows that pth and somatomedin-like growth factors have differential functions in bringing about the expression of the differentiated phenotype of chondrocytes : pth influences chain elongation and termination of glycosaminoglycans in proteoglycan i , while somatomedin-like growth factors affect primarily the synthesis and secretion of proteoglycan i .
C0053574
secretion
C1412792
proteoglycan i