Research Article

The Protective Effect of Indole-3-Acetic Acid (IAA) on H2O2-Damaged Human Dental Pulp Stem Cells Is Mediated by the AKT Pathway and Involves Increased Expression of the Transcription Factor Nuclear Factor-Erythroid 2-Related Factor 2 (Nrf2) and Its Downstream Target Heme Oxygenase 1 (HO-1)

Figure 5

Analysis of ROS levels in human dental pulp stem cells (hDPSCs) after sequential treatment with H2O2 and IAA. ROS level was significantly higher in the model group than in the nontreated group. However, the ROS level in the model group was noticeably decreased after treatment with IAA. IAA treatment alone had no effect on ROS levels in hDPSCs. ,