Figure 4.

The expressions of brain-derived neurotrophic factor (BDNF), GAP-43, and synapsin I in the different treatment groups were determined in brain and spinal cord following SCI. (A) BDNF, GAP-43, and synapsin I expressions in the brain (n = 4). (B) The relative intensity of BDNF, GAP-43, and synapsin I expression across treatment groups. (C) The BDNF, GAP-43, and synapsin I expressions in the spinal cord (n = 4). (D) The relative intensity of BDNF, GAP-43, and synapsin I expressions across treatment groups. *P < 0.05 in Veh versus Mel (10 mg/kg), **P < 0.01 in Veh versus Mel (10 mg/kg)

(sham group: Sham; vehicle group: Veh; melatonin group: Mel (10 mg/kg))