Assertion: alkaloid's effect | /r/HasProperty | decrease
Facets:
Source sentences:
text: An experimental study in the isolated rat uterus has led to the presumption that cyclobuxine has an inhibitory effect (a decrease in peak tension and duration) on acetylcholine, oxytocin and Ba2+-induced contraction of the smooth muscle, which may be due to blocking of potassium-activated calcium channels, voltage-sensitive calcium channels.