Keywords: SCI; spinal cord injury; LPO; lipid peroxidation; NO; nitric oxide; , NOx; nitrate/nitrite; MMPs; matrix metalloproteases; MDA; malondialdehyde; 4-HNE; 4-hydroxynonenal; T8; the 8th thoracic; dpi; days post injury; BBB; Basso-Beattie-Bresnahan; 8-OhdG; 8-