Figure 4. Zileuton suppresses neuronal apoptosis after SAH. (A, C, D) Effect of Zileuton with and without LY294002 on expression levels of pro-apoptotic Bax and anti-apoptotic Bcl-2 (n = 6 per group). *P < 0.05 vs sham group and &P < 0.05 vs SAH group, #P < 0.05 vs SAH + Zileuton group. (B, E) TUNEL analysis of the effect of Zileuton with and without LY294002 on the incidence of apoptosis among neurons after SAH. Original magnification, 400×, n = 6 per group. *P < 0.05 vs sham group and &P < 0.05 vs SAH group, #P < 0.05 vs SAH + Zileuton group.