Figure 3From: Osteoblastic differentiation and stress response of human mesenchymal stem cells exposed to alternating current electric fields mRNA Expression Levels during Osteogenic Differentiation. (a) ALP mRNA expression relative to GAPDH vs. time. (b) Col1 mRNA expression relative to GAPDH vs. time. Statistical significance between groups is marked by an asterisk (p < 0.05).Back to article page