Me. Meyer et al., DALDA (H-TYR-D-ARG-PHE-LYS-NH2), A POTENT MU-OPIOID PEPTIDE AGONIST, AFFECTS VARIOUS PATTERNS OF LOCOMOTOR ACTIVITIES, Pharmacology, biochemistry and behavior, 51(1), 1995, pp. 149-151
The central effects of mu-opioid receptor agonist DALDA (ICV 0.00, 0.1
, or 1.0 mu g) were investigated in rats for 120 min on activity monit
ors. The durations in seconds of horizontal. movement time, rearing ti
me, and stereotypy time were measured during 12 consecutive 10-min tim
e blocks. DALDA (ICV, 0.1 and 1.0 mu g) resulted in biphasic effects,
inhibition followed by activation for horizontal movement, rearing, an
d stereotypy times.