Fig. 6

Western blot analysis for BMP-2, Col-1, OCN, VEGF, and bFGF in PDCs. a, b Representative Western blot images. c–g The quantification of protein levels of BMP-2 (c), Col-1 (d), OCN (e), VEGF (f), and bFGF (g) *p < 0.05 vs. control group. In control intra-group: #p < 0.05 vs. 3 days; △p < 0.05 vs. 7 days; ▲p < 0.05 vs. 14 days. In CGF intra-group: §p < 0.05 vs. 3 days; ◇p < 0.05 vs. 7 days; ◆p < 0.05 vs. 14 days. BMP bone morphogenetic protein, Col-1 type I collagen, OCN osteocalcin, VEGF vascular endothelial growth factor, bFGF basic fibroblast growth factor, PDCs periosteum-derived cells. All data were presented as the means ± SD. All experiments were performed independently (each experiment used PDCs and CGF from a different rabbit) and repeated three times