**Abbreviations**

AChE, acetylcholinesterase; AIF, apoptosis-inducing factor; Akt, protein kinase B; Bax, Bcl-2-associated X protein; Bcl-2, B-cell lymphoma 2; BDNF, brain-derived neurotrophic factor; ChAT, choline acetyltransferase; CREB, cAMP response element-binding protein; DIM, 3,3- -diindolylmethane; GCLC, glutamate-cysteine ligase catalytic subunit; GPx, glutathione peroxidase; GR, glutathione reductase; GSH, glutathione; HO-1, heme oxygenase-1; NQO-1, NAD(P)H quinine oxidoreductase-1; Nrf2, NF-E2-related factor-2; ROS, reactive oxygen species; TrkB, Tropomyosin-related kinase receptor B.
