Figure 3.
The effects of p-cresol on osteogenesis of MSC: Osteogenic differentiation of MSCs were determined which included the expression of osteogenic-associated genes, ALP activity, and mineralization. The expression levels of osteogenic-associated genes; RUNX2, OPN, and COL1A1 were examined after treatment with p-cresol for 7 days and 14 days of osteogenic differentiation (A). The alkaline phosphatase (ALP) activity was assessed after treatment with p-cresol (10, 40, 80, and 160 µg/ml) for 7 day and 10 day of differentiation (B). The data were presented as relative ALP activity (U/ml) from four individual experiment (N=4). * P-value < 0.05 comparison with control. Alizarin red S staining was investigated for calcium deposition at day 14 of differentiation (C) (Scale bar: 200 µm).