Inhibition of oxytocin receptor function by direct binding of progesterone.

Presents research which studied the effect of progesterone on uterine sensitivity to oxytocin. Functions of the steroid hormone progesterone in mammals; Non-genomic action of progesterone on the uterine oxytocin receptor (OTR); Progesterone inhibiting oxytocin binding; Effects highly steroid- and receptor-specific; Direct interaction between a steroid hormone and a G-protein-coupled receptor; More.