A 77-year-old woman experiences a sudden loss of consciousness, with loss of movement on the right side of the body. Cerebral angiography shows an occlusion of the left middle cerebral artery. Elaboration of which of the following mediators will be most beneficial in preventing further ischemic injury to her cerebral cortex?
Bradykinin Leukotriene E4 Nitric oxide Platelet-activating factor