Figure 4From: IGF-I increases markers of osteoblastic activity and reduces bone resorption via osteoprotegerin and RANK-ligandCalcitonin receptor, RUNX2 and IGFBP-5 expressions. A. Bone gene and protein expression of calcitonin receptor (CTR). B. Gene expression of RUNX2 (a marker of early osteoblastogenesis), and C. Gene expression of IGFBP-5 (a promoter of bone IGF-I activities). *p < 0.05 vs CO. O.D., optical density.Back to article page