1. Nitric oxide radicals (NO) play an important role in the pathophysiology
of focal cerebral ischemia.
2. Vascular NO can reduce ischemic brain injury by increasing CBF, whereas
neuronal NO may mediate neurotoxicity following brain ischemia, mainly by i
ts reaction with superoxide to generate peroxynitrite.
3. These findings could contribute to a strategy for the treatment of cereb
ral ischemia.