1 mA	1-methyladenine
2 MeCP2	methyl-CpG-binding protein 2
3 mA	3-methyladenine
5 mC	5-methylcytosine
6 mA	N6-methyl deoxyadenosine
AD	Alzheimer’s disease
ASD	autism spectrum disorder
BDNF	brain-derived neurotrophic factor
CREB2	cAMP response element binding protein 2
DNMT1	DNA methyltransferase 1
DNMT3A	DNA methyltransferase 3A
DNMT3B	DNA methyltransferase 3B
DNMTs	DNA methyltransferases
eRNAs	enhancer RNAs
ESC	embryonic stem cells
GATA3	GATA binding protein 3
HAT	histone acetyltransferase
HDACs	histone deacetylases
HDACIs	histone deacetylase inhibitors
hmC	5-hydroxymethylcytosine
HMT	histone methyltransferase
IEGs	immediate early genes
KDAC	lysine deacetylase
KMT	histone lysine methyltransferase
lncRNAs	long non-coding RNAs
LTP	long-term potentiation
MBPs	methyl-CpG binding proteins
mCH	non-CG methylation
MBD	methyl-binding domain
MBD1–5	Methyl-CpG-binding domain protein 1 to 5
mRNA	messenger RNA
miRNAs	microRNAs
NaB	sodium butyrate
ncRNAs	non-coding RNAs
NMDA	N-methyl-D-aspartate
NSCs	neural stem cells
PD	Parkinson’s disease
piRNAs	PIWI-interacting RNAs
pri-miRNA	hairpin-containing primary transcripts
RGCs	radial glial cells
ROS	reactive oxygen species
RPCs	retinal precursor cells
SA-gal	senescence-associated-galactosidase
SASP	senescence-associated secretory phenotype
siRNAs	small interfering RNAs
SIRT1	sirtuin 1
SRA	SET- and RING-associated domain proteins
SUMO	small ubiquitin-like modifier
TGM2	transglutaminase 2
TNFα	tumor necrosis factor α
TSA	trichostatin A
UHRF1	ubiquitin-like containing PHD ring finger 1
UHRF1	ubiquitin-like containing PHD ring finger 1
ZBTB4	zinc finger and BTB domain-containing protein 4
ZBTB33	zinc finger and BTB domain-containing protein 33
ZBTB 38	zinc finger and BTB domain-containing protein 38