Figure 2: Comparative analysis of the myogenic differentiation capability after the treatment of three types of MSCs with 5´-azacytidine for 72 h. (A) Expression of MyoD and Pax-7 were quantified by performing densitometry on Western blots and normalizing to β-actin protein levels. A positive linear correlation was observed between the 5´-azacytidine treatment time and changes in protein expression levels. (B and C) Error bars represent the standard error of the mean.