Chondrocytes from osteoarthritic cartilage have increased expression of insulin-like growth factor I (IGF-I) and IGF-binding protein-3 (IGFBP-3) and -5, but not IGF-II or IGFBP-4. - Olney,R.C.; Tsuchiya,K.; Wilson,D.M.; Mohtai,M.; Maloney,W.J.; Schurman,D.J.; Smith,R.L. (J Clin Endocr Metab, 1996)