Chengde Medical College 1 article published in JoVE Behavior Establishment of a Valuable Mimic of Alzheimer's Disease in Rat Animal Model by Intracerebroventricular Injection of Composited Amyloid Beta Protein Wu Xiaoguang*1,3,5, Cheng Jianjun*1,3,4, Cao Qinying*2, Zhang Hui2,3, Yang Lukun1,3,4, Shang Yazhen1,3,4 1Institute of Traditional Chinese Medicine, Chengde Medical College, 2Shijiazhuang Obstetrics and Gynecology Hospital, 3Hebei Province Key Research Office of Traditional Chinese Medicine Against Dementia, 4Hebei Province Key Laboratory of Traditional Chinese Medicine Research and Development, 5Institute of Basic Medical Research of Basic Medical School This is a protocol to mimic Alzheimer's Disease in rats by evaluation of spatial memory impairment, neuronal pathological changes, neuronal amyloid beta protein (Aβ) burden, and neurofibrillary tangles aggregation, induced by the injection of Aβ25-35 combined with aluminum trichloride and recombinant human transforming growth factor-β1.