Fig. 4From: Tridax procumbens flavonoids promote osteoblast differentiation and bone formationEffects of TPF with noggin on Alp, Osteocalcin, Osterix and Runx2, mRNA expression in calvarial cells (a–d). The cells were cultured for 6 days in the presence or absence of TPF treatment. The data are expressed as the mean ± SD (n = 3) for each group. *p < 0.05Back to article page