Objective To explore the effects of Zishen Xingnao Decoction on the learning and memory ability of Alzheimer disease(AD)model rats based on the BDNF/TrkB/PI3K/Akt signaling pathway;To discuss its possible mechanism.Methods AD rat model was established by intracerebroventricular injection ofβ-amyloid protein,and the sham operation group was injected with equal volume of normal saline.The model rats were randomly divided into model group,traditional Chinese medicine(TCM)group and positive control group,with 6 rats in each group.TCM group and pos...