Figure 5. N‐acetylcysteine restored hypoxia‐induced down‐regulation of the BK_Ca channel β1 subunit in uterine arteries .

Uterine arteries of pregnant sheep were treated under control (21.0% O₂) and hypoxia (10.5% O₂) for 48 h in the absence or presence of 1 mm N‐acetylcysteine (NAC). Protein abundance of the β1 subunit was determined by Western blot. Data are means ± SEM of four tissues from four animals of each group. Data were analysed by two‐way ANOVA. *P < 0.05, hypoxia vs. control.