Figure 5.
Effect of PDBu on SK opener-induced relaxations of uterine arteries from pregnant sheep. Uterine arteries were isolated from pregnant sheep and incubated under 21% O2 or 10.5% O2 for 48 h. SK opener NS309 -induced relaxations of uterine arteries under normoxic (panel A) and hypoxic (panel B) treatment were determined in uterine arteries pre-contracted with norepinephrine (1 μM), in the absence (control) or presence of 1 μM PDBu. Data are means ± SEM of tissues from 5-8 animals in each group.