Figure 3.

The effect of H₂O₂ on colony formation ability of DBMSCs. (a) After 14 h in culture photomicrographs showing representative examples of a colony forming unit of DBMSCs preconditioned (Pre-DBMSC) with 50 and 100 μM H₂O₂ or untreated DBMSCs. (b) As compared to control DBMSC, the number of colonies of DBMSC preconditioned (Pre-DBMSC) with 100 μM H₂O₂ significantly increased (^∗P < 0.05) while the number of colonies of DBMSC preconditioned (Pre-DBMSC) with 50 μM H₂O₂ increased, but not significantly, P > 0.05. Experiments were carried out in triplicate using DBMSCs (Passages 3) prepared from five individual placentae. Bars represent standard errors.