Journal of reproduction and fertility

Summary. Progesterone has an inhibitory action on the spontaneous motility and pharmacological reactivity of isolated myometrial strips from women in early pregnancy. This effect is similar to that observed on isolated uterine preparations …

Summary. Impregnated rats were given a subcutaneous injection of ergocornine methanesulphonate between 0·15 and 0·5 mg/rat on the 4th day of gestation. The earliest response studied was the appearance of the oestrous vaginal smear, 2 to 3 d…