Shandong Qilu Stem Cell Engineering Co. Ltd. 1 article published in JoVE Neuroscience A Preclinical Model to Assess Brain Recovery After Acute Stroke in Rats Peng Liu*1, Xiu-Chun Song*2, Xiao-Shuai Yang1, Qi-Long Cao1, Yong-Yong Tang1, Xiao-Dun Liu3, Min Yang1, Wen-Qiang An1, Bai-Xiang Dong1, Xiu-Yun Song1 1Beijing Yinfeng Dingcheng Biological Engineering Technology Ltd., 2 The purpose of this study is to establish and validate an animal model for research in the recovery and sequela stages of brain ischemia by testing brain infarction and sensorimotor function after middle cerebral artery occlusion/reperfusion (MCAO/R) after 1-90 days in rats.