EA	electroacupuncture
EAA	EA-induced analgesia
CNS	central nerve system
MAPK	mitogen-activated protein kinase
ERK	extracellular signal-regulated kinase
PAG	periaqueductal gray
PCA	principal component analysis
SDH	spinal dorsal horn
PENK	proenkephalin
POMC	proopiomelanocortin
PDYN	preprodynorphin
DBI	diazepam-binding inhibitor
Pcsk1n	proprotein convertase 1 inhibitor
RPKM	Reads Per Kilobase of exon model per Million mapped reads
DEGs	differentially expressed genes
OPRK1	opioid receptor kappa 1
GO	gene ontology
KEGG	kyoto Encyclopedia of Genes and Genomes
GRIA1	glutamate receptor 1
Slc1a3	excitatory amino acid transporter
SYT1	synaptotagmin-1
GABBR1	γ-aminobutyric acid type B receptor subunit 1
GABA	γ-aminobutyric acid
GABAa	γ-aminobutyric acid type A
GABAb	γ-aminobutyric acid type B
TMSB4	thymosin β4 (gene)
Tβ4	thymosin β4 (protein)
NMDA	N-Methyl-d-aspartate