Table 1. Experimental groups and numbers of animals.

Experimental groups	Abbreviations used in figures	Retrograde labelingwith Fast Blue	Immuno histochemistry	Western blotting
Normal animals	CONT	6	4	4
Spinal cord injury	SCI	6	5	4
SCI + N-acetyl-cysteine	NAC	5	4	4
SCI + Acetyl-L-carnitine	ALC	6	4	4