Key result
Nifedipine almost abolishes calcium-induced contractions following K+ depolarization in human placental arteries.
Why the study?
The mechanisms of nifedipine effects on contractile responses in small human placental arteries were not fully understood.
Does nifedipine reduce contractile responses in human placental arteries?
Does nifedipine reduce contractile responses in human placental arteries?
Nifedipine inhibits contractile responses in human placental arteries, suggesting its clinical use may decrease fetal placental vascular resistance.
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May lower fetal placental resistance; hypothesis-generating from Level 5 animal data, requiring clinical trials.
Maigaard et al. (2010) studied Normal vaginal delivery (human placentas). Nifedipine was evaluated on Contractile response to potassium, 5-HT, and PGF2 alpha. Nifedipine (10^-7 M) almost abolished the contractile response induced by calcium after K+ depolarization in human placental arteries.
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