m6A	N6-methyladenosine
TBI	Traumatic brain injury
BGA	Brain-gut axis
IBD	Inflammatory bowel disease
CNS	Central nervous system
ENS	Enteric nervous system
ANS	Autonomic nervous system
HPA	Hypothalamus-pituitary-adrenal
TNF-α	Tumour necrosis factor-alpha
IL-1β/6/1/8/17	Interleukin-1 beta/6/1/8/17
BBB	Blood–brain barrier
TJs	Tight junctions
PD	Parkinson’s disease
AD	Alzheimer’s disease
ALS	Amyotrophic lateral sclerosis
MS	Multiple sclerosis
BCAAs	Branched chain amino acids
LPS	Lipopolysaccharides
BFLPS	Bacteroides fragilis lipopolysaccharides
iNOS	Inducible nitric oxide synthase
p-tau	Phosphorylated tau
NFκB	Nuclear factor kappaB
COX-2	Cyclooxygenase-2
CCR9+	C-C chemokine receptor type 9+
IFNγ	Interferon-γ
c-Maf	C-musculoaponeurotic-fibrosarcoma
RORγt	Retinoic acid-related orphan receptor gamma t
SPMS	Secondary progression multiple sclerosis
ZO	Zonula occludens
VE-cadherin	Vascular endothelial–cadherin
JAM-1	Junction adhesion molecule-1
GCs	Glucocorticoids
ICAM-1	Intracellular adhesion molecule-1
IEC	Intestinal epithelial cell
SAE	Sepsis-associated encephalopathy
YTHDF1/2/3	YTH domain family 1/2/3
WT	Wild type
GAPDH	Glyceraldehyde-3-phosphate dehydrogenase
METTL3/14/16/5	Methyltransferase-like 3/14/16/5
WTAP	Wilms’tumor 1-associating protein
SAM	S-adenosylmethionine
NLSs	Nuclear localisation signals
ZC3H13	Zinc finger CCCH-type containing 13
MTC	Methyltransferase cpmplex
RBM15	RNA binding motif protein 15
ZCCHC4	Zinc finger CCHC domain containing 4
MACOM	m6A-METTL Associated Complex
RNA POL II	RNA polymerase II
ZFD1/2	Zinc finger domain1/2
RRM	RNA recognition motif
SPOC domain	SpenParalog and OrthologsC-terminal domain
ssRNA	Single-stranded RNA
snRNA	Small nuclear RNA
lncRNA	Long non-coding RNA,
CPSF5/6	Cleavage and polyadenylation specific factor 5/6
FTO	Fat mass and obesity-associated protein
ALKBH5	AlkB homolog 5
m6Am	N6, 2′-O-dimethyladenosine
M1A	N1-methyladenosine
YTHDC1/2	YTH domain containing 1/2
HNRNPA2B1	Heterogenous nuclear ribonucleoprotein A2B1
HNRNPC	Heterogenous nuclear ribonucleoprotein C
hn-RNPG	Heterogenous nuclear ribonucleoprotein G
EIF3	Eukaryotic initiation factor 3
IGF2BP1/2/3	Insulin-like growth factor 2 mRNA-binding protein 1/2/3
hm6A	N6-hydroxymethyladenosine
f6A	N6-formyladenosine
A	Adenosine
DCP2	Decapping RNA2
dCasRx-M3	Dead RfxCas13d-Methyltransferase-like 3
dCasRx-A5	Dead RfxCas13d-AlkB homolog 5
SRSF3/10	Serine/arginine-rich splicing Factor 3/10
MCM4/5/2	Minichromosome maintenance deficient 4/5/2
AML	Acute myeloid leukaemia
HIF-1α	Hypoxia-inducible factor 1α
Dgcr8	DiGeorge syndrome critical region gene 8
3′/5′UTR	3′/5′untranslated region
G3BP1/2	Ras GTPase-activating protein-binding protein 1/2
Dapk1	Death Associated Protein Kinase 1
Fadd	Fas-associated death domain
Ngfr	Nerve growth factor receptor
mESC	Mouse embryonic stem cell
SYP	Synaptophysin
CXCL2	C-X-C motif chemokine ligand 2
IFN-CD4	Interferon-CD4
GRIN1/2A	Glutamate receptor, ionotropic,N-methyl D-aspartate 1/2A
GRIA1	Glutamate Receptor AMPA Type Subunit 1
CAMK2A/2B	Calcium/Calmodulin Dependent Protein Kinase 2A/2B
NSPCs	Neural stem/progenitor cells
Apc	Adenomatous polyposis coli
PTEN	Phosphatase and tensin homolog deleted on chromosome ten
OGD	Oxygen-glucose deprivation
HNSCC	Head and neck squamous cell carcinoma
CBP	CREB binding proteins
SOCSS	Suppressors of cytokine signaling
H/R	Hypoxia/reoxygenation
MCAO/R	Middle cerebral arteryocclusion/reperfusion
OGD/R	Oxygen-glucose deprivation/reoxygenation
CCI	Controlled cortical impact
6-OHDA	6-hydroxydop amine
SCFAs	Short-chain fatty acids
MERIP-Seq	Methylated RNA immunoprecipitation sequencing
GF	Germ free
SPF	Specific pathogen free
NSPs	Nonstarch polysaccharides
ILC3	Innate lymphoid cells
Nr4a1	Nuclear receptor subfamily 4 group A member1
TRAF6	Tumour necrosis factor receptor-associated factor 6
DDX60	DEXD/H box helicase 60
XPO1	Exportin 1
TCGA	The Cancer Genome Atlas
COAD	Colonic adenocarcinoma
NMDA	N-methyl-D-aspartate
ROS	Reactive oxygen stke
NLRP3	Nucleotide-binding oligomerization domain-like receptor pyrin domain-containing-3
p75NTR	P75-neurotrophin receptor
Nrf2	Nuclear factor erythroid 2-related factor 2
TINCR	Non-protein coding RNA
GSDMD	Gasdermin D
HO-1	Heme oxygenase-1
MMPs/2/9	matrix metalloproteinases/2/9
Keap1	Kelch-like ECH-associated protein 1
ARE	Antioxidant response element