HMOX1 and subarachnoid hemorrhage: Levels of heme oxygenase-1 protein were significantly increased in the choroid plexus removed at 1 (2.5-fold; p < 0.05), 3 (2.4-fold; p < 0.05), and 7 days (1.9-fold; p < 0.05) after subarachnoid hemorrhage induction.