Brain edema and neurological deficit evaluation following administration of AG490 at day 1 after SAH. (A) Brain water content was significantly higher in the SAH and SAH + DMSO groups compared with the Sham group at day 1 after SAH. AG490 administration significantly reduced brain edema after SAH compared with the SAH and SAH + DMSO groups; (B) Neurological scoring was significantly lower in the SAH and SAH + DMSO groups compared with the Sham group at days 1, 3 and 7 after SAH. However, neurological deficits significantly improved in the SAH + AG490 group compared with the SAH and SAH + DMSO groups at days 1, 3 and 7 after SAH. Data are presented as the mean ± standard deviation. *P<0.05 vs. the SAH and SAH + DMSO groups. SAH, subarachnoid hemorrhage; DMSO, dimethyl sulfoxide.