Spinal Cord Hemisection Facilitates Aromatic L-Amino Acid Decarboxylase Cells to Produce Serotonin in the Subchronic but Not the Chronic Phase

Table 1

Summary of the results from the different animal groups.

Group	Number of animals	Spinal cord side	Density of 5-HT fibers in IMZ^1 (% of analyzed area)	Density of 5-HT fibers in VH^2 (% of analyzed area)	Density of AADC cells (number of cells/analyzed section)	Density of 5-HT cells (% of AADC cells)
5-day control	5	Injured	0.89 ± 0.48	1.19 ± 0.51	19.99 ± 3.83	0
		Uninjured	3.80 ± 1.22	5.02 ± 1.21	22.37 ± 7.11	0
5-day 5-HTP + carbidopa	8	Injured	1.26 ± 0.78	0.73 ± 0.18	19.36 ± 8.78	42.52 ± 19.15
		Uninjured	4.20 ± 1.82	3.13 ± 0.61	15.08 ± 7.61	25.86 ± 17.81
60-day control	6	Injured	0.36 ± 0.06	0.59 ± 0.38	8.83 ± 3.45	0
		Uninjured	3.24 ± 1.24	2.72 ± 1.25	7.10 ± 3.73	0
60-day 5-HTP + carbidopa	6	Injured	0.78 ± 0.34	0.35 ± 0.08	11.42 ± 5.94	15.98 ± 18.72
		Uninjured	2.41 ± 1.16	1.54 ± 0.46	10.85 ± 4.80	9.57 ± 15.00

IMZ: intermediate zone; ²VH: ventral horn.