| AD | Alzheimer’s disease |
| ABCA7 | ATP-binding cassette sub-family A member 7 |
| AChEIs | acetylcholinesterase inhibitors |
| ACTB | actin beta |
| ADAM10 | disintegrin and metalloproteinase domain-containing protein 10 |
| AET | aerobic exercise training |
| AGEs | advanced glycation end products |
| AKT | protein kinase B |
| AMPK | adenosine monophosphate-activated protein kinase |
| APLP1/2 | amyloid precursor-like protein 1/2 |
| APOE | apolipoprotein E |
| APOE-ε4 | apolipoprotein E epsilon 4 |
| APP | amyloid precursor protein |
| ATP | adenosine triphosphate |
| Aβ | amyloid-beta |
| BACE1 | beta-site amyloid precursor protein cleaving enzyme 1 |
| BBB | blood–brain barrier |
| BDNF | brain-derived neurotrophic factor |
| BIN1 | bridging integrator 1 |
| BIR | brain insulin resistance |
| BMI | body mass index |
| CD2AP | cortactin-CD2-associated protein |
| CDK5 | cyclin-dependent kinase 5 |
| CDKN1A | cyclin-dependent kinase inhibitor 1A |
| cFDR | conditional false discovery rate |
| CLU | clusterin |
| CNS | central nervous system |
| COL22A1 | collagen type XXII alpha 1 chain |
| CR1 | complement receptor type 1 |
| CRP | C-reactive protein |
| CSF | cerebrospinal fluid |
| CT | computed tomography |
| CVD | cardiovascular disease |
| DASH | dietary approaches to stop hypertension |
| DEG | differentially expressed gene |
| dTg | double transgenic |
| EIF4A | eukaryotic initiation factor 4A |
| EOAD | early-onset AD |
| EPHA1 | ephrin type-A receptor 1 |
| FADH2 | flavin adenine dinucleotide |
| FAD | familial Alzheimer’s disease |
| FDA | food and drug administration |
| GABA | γ-aminobutyric acid |
| GFAP | glial fibrillary acidic protein |
| GI | glycemic index |
| GLUT1/3/4 | glucose transporter protein 1/3/4 |
| GLP-1 | glucagon-like peptide-1 |
| GSK-3β | glycogen synthase kinase 3 beta |
| GWASs | genome-wide association studies |
| HbA1c | hemoglobin A1c |
| HIIT | high-intensity interval training |
| IDE | insulin-degrading enzyme |
| IGF-1/2 | insulin-like growth factor 1/2 |
| IL-1β | interleukin 1 beta |
| IL-9 | interleukin 9 |
| IRβ | insulin receptor beta |
| IRS-(1) | insulin receptor substrate-(1) |
| KD | ketogenic diet |
| LOAD | late-onset AD |
| LTP | long-term synaptic potentiation |
| MAPK | mitogen-activated protein kinase |
| MAPT | microtubule-associated protein tau |
| MCI | mild cognitive impairment |
| MCT | medium-chain triglyceride |
| MCP-1 | monocyte chemoattractant protein-1 |
| MeDS | Mediterranean diet |
| MICT | moderate-intensity continuous training |
| MIND | Mediterranean-DASH intervention for neurodegenerative delay |
| miRNAs | microRNAs |
| MMSE | mini-mental state examination |
| MRI | magnetic resonance imaging |
| MTBD | microtubule-binding domain |
| mTOR | mechanistic target of rapamycin |
| NADH | reduced nicotinamide adenine dinucleotide |
| NDUFAF6 | nicotinamide adenine dinucleotide + reduced ubiquinone oxidoreductase complex assembly factor 6 |
| NF-κB | nuclear factor kappa B |
| NFTs | neurofibrillary tangles |
| NMF | non-negative matrix factorization |
| NMDA | N-methyl-D-aspartate |
| PA | physical activity |
| PDK1 | 3-phosphoinositide-dependent protein kinase 1 |
| PDPKs | proline-directed protein kinases |
| PET | positron emission tomography |
| PHFs | paired helical filaments |
| PI3K | phosphatidylinositol 3-kinase |
| PICALM | phosphatidylinositol binding clathrin assembly protein |
| PIP3 | phosphatidylinositol 3,4,5-trisphosphate |
| PP2A | protein phosphatase 2 A |
| PPAR-γ | peroxisome proliferator-activated receptor gamma |
| PRR | proline-rich region |
| PSEN1 | presenilin 1 |
| PSEN2 | presenilin 2 |
| PTP1B | protein tyrosine phosphatase 1B |
| RAGEs | receptors for AGEs |
| REM | rapid eye movement |
| ROS | reactive oxygen species |
| S6K | ribosomal protein S6 kinase |
| sAPPα | soluble APP alpha |
| SCFAs | short-chain fatty acids |
| Ser473 | serine 473 |
| SERINC3 | serine incorporator 3 |
| SFs | straight filaments |
| SGLT-2 | sodium–glucose cotransporter-2 |
| SLC1A1 | solute carrier family 1 member 1 |
| SNPs | single nucleotide polymorphisms |
| SORL1 | sortilin-related receptor 1 |
| T2DM | type 2 diabetes mellitus |
| Thr308 | threonine 308 |
| TMA | trimethylamine |
| TMAO | trimethylamine N-oxide |
| TNF-α | tumor necrosis factor-alpha |
| TOMM40 | translocase of outer mitochondrial membrane 40 |
| TP53INP1 | tumor protein p53 inducible nuclear protein 1 |
| TZDs | Thiazolidinediones |
| UDP-GlcNAc | uridine diphosphate N-acetylglucosamine |
| VIM | Vimentin |
| WHO | world health organization |
| YOAD | young-onset AD |
| ZMIZ1 | zinc finger MIZ-type containing 1 |
| β-CTF | β-carboxy-terminal fragment |