Keywords: AD, Alzheimer’s disease; BrdU, 5-bromo-2′-deoxyuridine; CAT, catalase; CCK-8, cell counting Kit-8; CNS, central nervous system; DCF, dichlorofluorescin; DCF-DA, 2′,7′-dichlorofluorescin diacetate; DMEM, Dulbecco’s modified Eagle’s medium; FITC, fluorescei