Table 1.

Tissue concentrations of DA, 5‐HT and NE in the striatum and the cortex of 6‐OHDA‐lesioned rats

	Tissue levels in 6‐OHDA rats (ng/mg of tissue)
	Ipsilateral	Contralateral
Striatum
DA	ND	7147 ± 155
5‐HT	293 ± 90	336 ± 32
Cortex
NE	236 ± 22	258 ± 19
5‐HT	164 ± 16	195 ± 12

Each value, expressed in ng/mg of tissue, represents the mean ± SEM of 48 rats in unilaterally 6‐hydroxydopamine (6‐OHDA)‐lesioned rats. Brain tissues were collected 2 h after the end of microdialysis experiments that were performed 3–4 weeks after the unilateral injection of 6‐OHDA in the median forebrain bundle.

ND, not detectable.