PI3K/Akt/CREB activator 1 (compound AE-18; 5 and 10 mg/kg; i.g.; male Sprague-Dawley rats with chronic cerebral hypoperfusion (CCH) model) improves cerebral blood flow (CBF) recovery after bilateral common carotid artery occlusion (BCCAO). PI3K/Akt/CREB activator 1 (5 and 10 mg/kg; i.g.; for 5 d) mitigates impairment of learning and memory in chronic cerebral hypoperfusion (CCH) rat model and alleviates CCH-induced pathological injury in the hippocampus after BCCAO.