CNS	Central nervous system
SCI	Spinal cord injury
PU	Polyurethane
PLDL	Poly(l-lactide-co-d,l-lactide)
OECs	Olfactory ensheathing cells
ASCs	Adipose stromal stem cells
ROS	Reactive oxygen species
NO	Nitric oxide
SOD	Superoxide dismutase
FBS	Fetal bovine serum
DMEM	Dulbecco’s Modified Eagle Medium
HBSS	Hank’s Balanced Salt Solution
GFAP	Glial fibrillary acidic protein