Ad-MSCs	Adipose-Derived Mesenchymal Stem Cells
ALG	Aligned Chitosan Fiber Hydrogel
AMSCs	Amniotic Mesenchymal Stem Cells
BDNF	Brain Derived Neurotrophic Factor
BM-MSCs	Bone Marrow Mesenchymal Stem Cells
CNS	Central Nervous System
DPSCs	Dental Pulp Stem Cells
EPO	Erythropoietin
ES	Electrical Stimulation
FS	Fibrin sealant
LIU	Low-intensity Ultrasound
GFs	Growth Factors
GDNF	Glial-Cell Derived Neurotrophic Factor
HAP	Hair Follicle Associated Pluripotent Cells
HFS	Heterologous fibrin sealant
MSCs	Mesenchymal Stem Cells
MPC	Muscle Progenitor Cells
NCC	Neural Crest Stem Cells
NGCS	Nerve Guide Conduits
NGF	Nerve Growth Factor
NMNAT/NMNAT2	Nicotinamide Mononucleotide Adenyltransferase
OM-MSCs	Olfactory Mucosa Mesenchymal Stem Cells
PBMT	Photobiomodulation Therapy
PEG	Polyethylene Glycol
PLGA	Poly(lactide-co-glycolide)
PNI	Peripheral Nerve Injury
PNS	Peripheral Nervous System
PUFA	Poly-Unsaturated Fatty Acids
SCs	Schwann Cells
SFI	Sciatic Functional Index
Sk-SCs	Skeletal-muscle-derived Mesenchymal Stem Cells
UC-MSCs	Umbilical Cord Mesenchymal Stem Cells
VEGF	Vascular Endothelial Growth Factor
WD	Wallerian Degeneration
WRL	Withdrawal Reflex Latency
4-AP	Aminopyridine