Figure 6

Immunohistochemical study of osteocalcin in the BMP-2/atelocollagen pellet 3 weeks after implantation. Osteocalcin is positively stained both in osteoblasts and surrounding matrix in control ectopic bone (A). Expression of osteocalcin is restricted in osteoblasts in the ectopic bone of G-CSF mice (B). Original magnification, × 100.