| ACh | acetylcholine |
| AChE | acetylcholinesterase |
| AD | Alzheimer’s disease |
| ApoE | apolipoproteinE |
| APP | amyloid precursor protein |
| AR | autoradiography |
| ATP | adenosine triphosphate |
| Aβ | beta amyloid |
| α-BTX | alpha-bungarotoxin |
| BACE1 | beta-site amyloid precursor protein cleaving enzyme 1 |
| BFCS | basal forebrain cholinergic system |
| CA1 | cornu ammonis 1 |
| CA3 | cornu ammonis 3 |
| CaMKII | Ca2+/calmodulin-dependent protein kinase II |
| CAP | cholinergic anti-inflammatory pathway |
| CD | cluster of differentiation |
| E-LTP | early long-term potentiation |
| eNMDAR | extrasynaptic NMDA receptor |
| EphB2 | ephrin type-B receptor 2 |
| ERK | extracellular signal-regulated kinase |
| GABA | gamma-aminobutyric acid |
| GCLC | glutamate-cysteine ligase catalytic subunit |
| GLAST | glutamate aspartate transporter |
| GSK | glycogen synthase kinase |
| HO1 | heme oxygenase I |
| IHC | immunohistochemistry |
| IkBa | NF-κB inhibitor alpha |
| IL | interleukin |
| IP3 | inositol triphosphate |
| ISH | in situ hybridization |
| JAK2 | Janus kinase 2 |
| L-LTP | late-long-term potentiation |
| LPS | lipopolysaccharide |
| LTD | long-term depression |
| LTP | long-term potentiation |
| mAChR | muscarinic acetylcholine receptor |
| MAPK | mitogen-activated protein kinase |
| MCI | mild cognitive impairment |
| mEPSC | miniature excitatory postsynaptic current |
| MIP-1α | macrophage inflammatory protein-1 alpha |
| MLA | methyllycaconitine |
| MPP+ | 1-methyl-4-phenylpyridinium |
| nAChR | nicotinic acetylcholine receptor |
| NADPH | nicotinamide adenine dinucleotide phosphate |
| NF-kB | nuclear factor-kappa B |
| NGF | nerve growth factor |
| NgR1 | nogo receptor 1 |
| NMDA | N-methyl-D-aspartate |
| Nrf-2 | nuclear factor erythroid 2–related factor 2 |
| P2X7R | purinergic P2X7 receptor |
| p75NTR | p75 neurotrophin receptor |
| PAMP | pathogen-associated molecular pattern |
| PET | positron emission tomography |
| PI3K | phosphoinositide 3-kinase |
| PKA | protein kinase A |
| PKC | protein kinase C |
| PLC | phospholipase C |
| PP2B | Serine/threonine protein phosphatase 2B (calcineurin) |
| Prpc | cellular prion protein |
| PS1 | presenilin 1 |
| RAGE | receptor for advanced glycation end products |
| RANTES | regulated on activation, normal T cell expressed and secreted |
| ROS | reactive oxygen species |
| shRNA | short hairpin RNA |
| STAT3 | signal transducer and activator of transcription 3 |
| STEP | Striatal-enriched phosphatase |
| TNF | tumor necrosis factor |
| TR-FRET | time-resolved fluorescence energy transfer |
| TXNRD1 | thioredoxin reductase 1 |
| VGCC | voltage-gated Ca2+ channel |
| WB | Western blot |