Figure 7. Sensitivity of porcine trabecular meshwork (PTM) cells to H₂O₂ for 8 h after pretreatment with LY294002, U0126, and SB203580. The mean percentages of dead cells (propidium iodide-positive cells) to total number of cells (Hoechst 33342-positive cells) were estimated with medium alone (A) or 600 μM H₂O₂ (B) treatment for 8 h after pretreatment with each inhibitor or vehicle (n=4). *p<0.05 compared with control. Bars indicate the standard deviations.