Figure 4. The effects of As2O3 and baicalin on NADPH oxidase activity in HUVECs. A: HUVECs were treated with 0-20 μM As2O3 for 24 h and NADPH oxidase activity was evaluated as fold that of untreated cells. B: The effect on NADPH oxidase activity in HUVECs after pretreatment of baicalin for 1 h, and co-treatment of baicalin with 20 μM (◆), 10 μM (▼), 5 μM (▲) or 0 μM (●) As2O3 for 24 h. Data are the mean±SD for three independent experiments. *Significantly different at p<0.05 compared with untreated cells.
