DDS	Drug delivery system
PNI	Peripheral nerve injury
SCs	Schwann cells
NTs	Neurotrophic factors
NGC	Nerve guidance channel
NGF	Nerve growth factor
MPs	Microparticles
NPs	Nanoparticles
PLGA	Poly(lactic-co-glycolic acid)
GDNF	Glia cell-derived neurotrophic factor
BDNF	Brain-derived nerve factor
BSA	Bovine serum albumin
EPO	Erythropoietin
NT-3	Neurotrophin 3
NT4/5	Neurotrophin 4/5
TrKA	Tyrosine kinases receptor A
TrkB	Tyrosine kinases receptor B
DS	Delivery system
CNTF	Ciliary neurotrophic factor
DRG	Dorsal root ganglia
FGF	Fibroblast growth factor
FK506	Tacrolimus
TM	Thrombomodulin
4-AP	4-aminopyridine
MSs	Microspheres
PEG	Polyethylene glycol
PCL	Polycaprolactone
PLLA	Poly(L-lactic acid)
CNAP	Compound nerve action potential
CMAP	Compound muscle action potential
NCV	Nerve conduction velocity
HNTs	Halloysite nanotubes
MNP	magnetic nanoparticle
VEGF	Vascular endothelial growth factor
PDLLA	Poly (D, L- lactic acid)
MLT	Melatonin
MAPK	Mitogen-activated protein kinase
P(LLA-CL)	Poly(L-lactic acid-co-ε-caprolactone)
HFMF	High-frequency magnetic field