Tyrosine (TYR) effects on catecholamine metabolites levels in
vivo. TYR (31.75 – 1000 μM) was administered into
the medial prefrontal cortex (MPFC) or striatum by reverse microdialysis. Time
course of DOPAC during administration of L-TYR 250 μM within (A) MPFC or
(B) striatum. DOPAC in MPFC (C) or striatum (D) after 3.0 h of vehicle (VEH) or
TYR. HVA in MPFC (E) or striatum (F) after 3.0 h of VEH or TYR. MHPG in MPFC (G)
after 3.0 h of VEH or TYR. Significantly different from baseline: *
p < 0.05, ** p
< 0.01, *** p < 0.001. Significantly
different from VEH-treated group, † p < 0.01,
†† p < 0.001. Mean ± SEM, n =
5/group.