Fig. 3From: Exendin-4 enhances the differentiation of Wharton’s jelly mesenchymal stem cells into insulin-producing cells through activation of various β-cell markersGene expression analyses by qRT-PCR for several β-cell markers. a Pdx-1, b Nkx2.2, c Isl-1 and d MafA in differentiated IPCs derived from differentiation protocols A and B as compared with their control uninduced WJ-MSCs. Results are presented as mean ± standard error of mean, obtained from three independent experiments. *Means are significantly different from control uninduced WJ-MSCs at p < 0.05Back to article page