Fig. 3

ALP activity was significantly increased at seven and 14 days post seeding for samples seeded with rhBMP2_108 when compared to control tissue culture plastic alone (All experiments were conducted in triplicate with three independent experiments (n = 9). Data represents means +/− SEM. * denotes significant difference between 500 ng/ml and 10 ng/ml rhBMP2, p < 0.05; ** denotes significantly higher than all other modalities, p < 0.05, # denotes control samples significantly lower than all other treatment modalities, p < 0.05)