Distinct role of heme oxygenase-1 in early- and late-stage intracerebral hemorrhage in 12-month-old mice

Intracerebral hemorrhage (ICH) is a devastating form of stroke with high morbidity and mortality. Heme oxygenase-1 (HO-1), the key enzyme in heme degradation, is highly expressed after ICH, but its role is still unclear. In this study, we used an HO-1 inducer and inhibitor to test the role of HO-1 in different stages of ICH in vivo and in vitro. In the early stage of ICH, high HO-1 expression worsened the outcomes of mice subjected to the...