| 5-methylTHF | 5:10-methylenetetrahydrofolate to 5-methyltetrahydrofolate |
| ATP | Adenosine triphosphate |
| SAHH | AdoHcy hydrolase |
| AGEs | Advanced glycation end products |
| AD | Alzheimer’s disease |
| APP | Amyloid precursor |
| ADMA | Asymmetric dimethylarginine |
| BHMT | Betaine-homocysteine methyltransferase |
| BBB | Blood–brain barrier |
| CAA | Cerebral amyloid angiopathy |
| CBF | Cerebral blood flow |
| SVD | Cerebral small vessel disease |
| CSF | Cerebrospinal fluid |
| CRP | C-reactive protein |
| cGMP | Cyclic guanosine monophosphate |
| cGMP | Cyclic guanosine-30,5-monophosphate |
| CBS | Cystathionine β-synthase |
| CSE | Cystathionine γ-lyase |
| DDAH | Dimethylarginine dimethylaminohydrolase |
| DUSPs | Dual-specificity phosphatases |
| HERP | Endoplasmic protein |
| ER | Endoplasmic reticulum |
| eNOS | Endothelial NO synthase |
| EDHF | Endothelium-derived hyperpolarizing factors |
| ERK | Extracellular signal-regulated kinase |
| ERM | Ezrin, radixin, and moesin |
| GABA | Gamma-amino butyric |
| PQC | Global cellular protein quality control |
| Hcy | Homocysteine |
| HERP | Hcy-induced Endoplasmic Reticulum Protein |
| HHcy | hyperhomocysteinemia |
| P-tau | Hyperphosphorylated tau protein |
| HIF 1 | Hypoxia-inducible factor 1 |
| ICAM-1 | Intercellular adhesion molecule-1 |
| IL-6 | Interleukin-6 |
| LOX | Lectin-like low-density lipoprotein |
| MMP | Matrix-metalloprotease |
| MST | 3-mercaptopyruvate sulfurtransferase |
| MAT | Methionine adenosyltransferase |
| MTR | Methionine synthase |
| MetRS | Methionyl-tRNA synthase |
| MT | Methyltransferase |
| PPM1 and PPM2A | Methyltransferase systems |
| MAP | Mitogen-activated protein kinases |
| MLCP | Myosin light-chain phosphatase |
| NADPH | Nicotinamide Adenine Dinucleotide Phosphate Hydrogen |
| NO | Nitric oxide |
| NOS | Nitric oxide synthase |
| NMDA | N-methyl D-Aspartate |
| SID | N-[(1,1-dimethyl ethoxy)carbonyl]-L-tryptophan-2-[[[2-[(2- ethyl phenyl)amino]-2-oxoethyl]thio]carbonyl]hydrazide |
| NFK-Beta | Nuclear factor kappa light-chain enhancer of activated B cells |
| PVS | Perivascular spaces |
| PAI-1 | Plasminogen activator inhibitor-1 |
| PHOX | Phagocytic NADPH oxidase |
| PC | Phosphatidylcholines |
| PEMT | Phosphatidylethanolamine N-methyltransferase |
| PS1 | Presenilin 1 |
| PRMTs | Protein arginine N-methyltransferases |
| PKM-2 | Pyruvate kinase muscle isoenzyme 2 |
| ROS | Reactive oxygen species |
| ROCK | Rho-associated protein kinase |
| SAM | S-adenosyl methionine |
| AdoHcy | S-adenosylhomocysteine |
| SAH | S-adenosyl-L-homocysteine |
| AdoMet | S-adenosylmethionine |
| STATs | Signal transducer and activator of transcription proteins |
| STAT3 | Signal transducer and activator of transcription 3 |
| SIRT1-HSF1 axis | Sirtuin/heat shock factor 1/heat shock protein axis |
| sTM | Soluble thrombomodulin |
| sVAD | Subcortical vascular dementia |
| SOD | Superoxide dismutase |
| DNMT | Toll like receptor/NF-KB-DNA methyltransferase |
| TLR | Toll-like receptor |
| UPS | Ubiquitin-proteasome system |
| UPR | Unfolded protein response |
| VEGF | Vascular endothelial growth factor |
| Cbl | Vitamin B12 |