Figure 2.

Effects of bFGF and FN on osteoblasts seeded into bio-derived bone scaffolds after culturing for 25 days assessed by MTT assay. bFGF, basic fibroblast growth factor; FN, fibronectin; PLL, poly-L-lysine. **P<0.01, FN-modified groups at different concentrations of bFGN (0, 0.1, 1, 10, 100 ng/ml) vs. the unmodified groups (Non-PLL and PLL-groups); ^##P<0.01, bFGF-stimulated groups (the groups whose concentration of bFGF were above 0 ng/ml) at different concentrations of FN (0.1, 1, 10, 100 µg/ml) vs. the unstimulated groups (the groups whose concentration of bFGF were 0 ng/ml).