TABLE 2

Effects of acute treatment with PDE4 inhibitors on immobility in the forced-swim test

Values shown are means ± S.E. for times of immobility of separate groups of rats tested in the forced-swim test; n = 6 per group. Rats were treated with PDE4 inhibitors and tested in forced-swim test 0.5 or 2 h post-treatment.

Immobility
0.5 h Post-Treatment2 h Post-Treatment
s
Vehicle154 ± 10.2138 ± 14.2
Rolipram84 ± 12.1*144 ± 7.4
    0.3 mg/kg174 ± 9.2122 ± 7.0
    1 mg/kg
    3 mg/kg201 ± 8.6127 ± 10.9
Piclamilast58 ± 6.24**132 ± 5.9
    0.3 mg/kg
    1 mg/kg
    3 mg/kg129 ± 25.4123 ± 9.3
CDP84091 ± 6.5*141 ± 10.6
    3 mg/kg122 ± 19.0126 ± 12.5
    10 mg/kg
    30 mg/kg125 ± 15.0123 ± 6.1
  • ** P < 0.01; *P < 0.05 vs. corresponding control.