Cerebrovascular accident(CVA)or stroke is one of the world’s leading causes of death and permanent disability.The high social and medical costs associated with this pathology mean there is an urgent need to find effective therapies.Occlusion of the middle cerebral artery(MCAO),mainly by clots,is the origin of most CVAs in humans. Cerebrovascular accident (CVA) or stroke is one of the world’s leading causes of death and permanent disability. The high social and medical costs associated with this pathology mean there is an urgent need to find effective therapies. Occlusion of the middle cerebral artery (MCAO) , mainly by clots, is the origin of most CVAs in humans.