| 5-Aza-CdR | 5-aza-2’-deoxycitidine | HD | Huntington’s disease |
| 5-Aza-CR | 5-Azacytidine | HDAC | Histone deacetylase |
| 5caC | 5-carboxylcytosine | HDACi | Histone deacetylases inhibitor |
| 5fC | 5-formylcytosine | HTT | Huntingtin |
| 5hmC | 5-hydroxylcytosine | KDM5D | Lys (K)-specific demethylase 5D |
| 5mC | 5-methycytosine | KDM5D | Lys-specific demethylase 5D |
| A2AR | A2A receptor | L-DOPA | 3, 4-dihydroxy-l-phenylalanine |
| AD | Alzheimer’s disease | MAPT | Microtubule-associated protein Tau |
| ADD | ATRX-DNMT3-DNMT3L domain | MAPT | Microtubule-associated protein Tau |
| Aβ | Amyloid-beta peptide | MFG | Middle frontal gyrus |
| AβPP | Amyloid-β protein precursor | MPTP | 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine |
| BER | Base excision repair | MTG | Middle temporal gyrus |
| CNS | Central nervous system | NPC | Neural progenitor cell |
| DhMR | Differentially hydroxymethylated region | OL | Oligodendrocyte |
| DNMT | DNA methyltransferase | OPC | Oligodendrocyte progenitor cell |
| UHRF1 | Ubiquitin-like, containing PHD and RING finger domain | PD | Parkinson’s disease |
| DNMTi | DNA methyltransferases inhibitor | polyQ | Polyglutamine |
| ELVOL2 | ELOVL Fatty Acid Elongase 2 | PSEN1 | Presenilin1 |
| EOPD | Early-onset Parkinson’s disease | SAM | S-adenosylmethionine |
| ESC | Embryonic stem cell | SNCA | α-synuclein |
| EWAS | Epigenome-wide association study | SNCB | β-synuclein |
| FDA | Food and Drug Administration | TBRS | Tatton-Brown-Rahman syndrome |
| GC | Granule cells | TDG | Thymine DNA glycosylase |
| H3K4me | Histone H3K4 methylation | TET | Ten-eleven translocation dioxygenase |
| H3K4me3 | Trimethylation of histone H3K4 | TNF-α | Tumor necrosis factor α |
| H3K9me | Histone H3K9 methylation | YAC128 | 128 CAG repeats |