Table 1.

Pearson’s coefficient of correlation values (r) for the concentration of pairs of neurotransmitters in the lumbar spinal cord of rats.

	GABA	GLU	DA	SER	E	NE
GABA		0.95	0.56	0.55	0.6	0.33
GLU	0.95		0.47	0.68	0.51	0.2
DA	0.56	0.47		0.93	0.3	0.52
SER	0.55	0.68	0.93		0.44	0.45
E	0.6	0.51	0.3	0.44		0.6
NE	0.33	0.2	0.52	0.45	0.6