DSR-141562 (oral administration; 30 mg/kg; single dose; plasma and brain exposures 0.5, 1, 2, and 3 hours after administration) exhibits good brain uptake, with the brain-to-blood concentration ratio of unbound drug being 0.99 in rats.
DSR-141562 (oral administration; 10 mg/kg; single dose; 2 hours) slightly but significantly increases cGMP contents in the frontal cortex and striatum in rat.
DSR-141562 (oral administration; 30 mg/kg or 100 mg/kg; single dose; 2 hours) causes a significant increase in cGMP concentration in monkey CSF. The plasma concentrations of unbound this compound are above 43.9 nM (IC50s)for PDE1B in vitro (43.9 nM). DSR-141562 causes a significant increase in cGMP concentration in monkey CSF.
DSR-141562 (oral administration; 3 mg/kg, 10 mg/kg and 30 mg/kg; single dose) significantly reverses methamphetamine-induced locomotor hyperactivity, but has no effect on spontaneouslocomotor activity at 3 and 10 mg/kg.
DSR-141562 (oral administration; 0.3 mg/kg, 1 mg/kg or 3 mg/kg) significantly reversed the phencyclidine-induced decrease of social interaction time in mice.
Animal Model: |
Male SpragueDawley rats |
Dosage: |
3 mg/kg, 10 mg/kg and 30 mg/kg |
Administration: |
Oral administration; single dose |
Result: |
Inhibited methamphetamine-induced locomotor hyperactivity in rats, while it had only minimal effects on the spontaneous locomotor activity. |
Animal Model: |
Male SpragueDawley rats |
Dosage: |
0.3 mg/kg, 1 mg/kg or 3 mg/kg |
Administration: |
Oral administration; single dose |
Result: |
Reversed social interaction. |