Table 2

Potency values of RP 73401 and rolipram on spontaneous contractile activity of myometrial strips

RP 73401Rolipram
pD2npD2n
Nonpregnant−8.8  ± 0.28−8.1  ± 0.22-a 8
Pregnant−8.8  ± 0.32-b 6−7.2  ± 0.22-c 2-d 6

Contractile activity of isolated myometrial strips were measured in the presence or the absence of increasing doses of either RP 73401 or rolipram. Calculated potency (pD2) values were obtained with the Inplot computer software. Data are given as the means ± S.E. for n myometrial strips isolated from different nonpregnant or pregnant women.

  • 2-a Nonsignificantly different from values obtained with RP 73401.

  • 2-b Nonsignificantly different from values obtained with nonpregnant samples.

  • 2-c Significantly different (P < .01) from values obtained with nonpregnant samples.

  • 2-d Significantly different (P < .01) from values obtained with RP 73401.