Abstract
The isolated rat uterus contraction induced by oxytocin and Ca+ + after high-K depolarization were markedly inhibited by tetrandrine (Tet). The depression was immediately reversed by addition of Ca++ to the bath fluid. Tet and verapamil (Ver), which shifted the cumulative dose-response curves to the right and depressed the maximal responses to CaCl2 acted as non-competitive antagonists. The oxytocin-induced Ca++-dependent contractions were depressed by 4.8 and 30 μM Tet. Tet 30 μM also inhibited the Ca++ o-dependent component of the contraction.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call