Figure 4. Cell viability of MSCs. (A) Population doubling levels of WT (blue) and MDPL MSCs (orange, green and light blue) from 0 to 96 hours. (B) Cell death count in MSCs of WT and MDPL MSCs from 0 to 96 h. (C) MTS assay, histogram representing the percentage of cell viability at 48 h of WT and MDPL MSCs at 5 × 103 and 10 × 103 cell seeded. The WT data are derived from the mean of the values obtained from the two healthy control samples. Error bars indicate the standard deviation ± standard error of the mean (SEM). *p < 0.1, **p < 0.01, by one-way ANOVA test.