Top: Representative autoradiogram of Keap1, Nrf2, and HO-1 expression in the brain after SAH.

Results show that there was more expression of these proteins in the SAH groups and further up-regulated after tBHQ treatment. Lane 1, control; lane 2, SAH; lane 3, SAH+vehicle; lanes 4, SAH+tBHQ, respectively. Bottom: Quantitative analysis of the Western blot results shows that these protein levels in SAH groups are significantly higher than in control group and progressively induced by tBHQ. Bars represent the mean±SD (n = 10, each group). **P<0.01 and *P<0.05 between control animals vs. SAH animals; ##P<0.01 and #P<0.05 between SAH+vehicle animals vs. SAH+tBHQ animals; nsP >0.05 between SAH animals vs. SAH+vehicle animals.