The action oe progesterone on the uterus of the rabbit and its antagonism by œstrone

Interactions Between Oestradiol and Progestogens in the Uterus of the Mouse

“…In the rabbit it inhibits the effects of oestrogen on uterine motility (Reynolds & Allen, 1932) and reverses oestrogenic inhibition of progestational proliferation (Robson, 1936). Similar results have been obtained in the baboon (Gillman & Stein, 1939), while in the mouse the injection of progesterone prevents uterine weight increase under the influence of oestrogen (Edgren & Calhoun, 19576).…”

Bisexual Properties and Co-operative Activity of Sex Hormones

“…Testosterone propionate is of special interest and importance, since its activity is much greater than that of pure testosterone. Some of the results obtained in our experiments were confirmed or independently obtained on rats or other animals by Collip and co-workers Selye, McEuen, and Collip, 1936;Selye, Browne, and Collip, 1936), Hain (1937), Deanesly and, Klein and Parkes (1936), Robson (1936 and, and Zuckerman (1937). * Personal communication.…”

Effect of Vasopressin on the Uteroplacental Circulation: An Angiographic Study in the Rabbit

“…Such an increase in resistance could be caused by active vasoconstriction or compression of vessels by the contraction of myometrial muscle. It is unlikely that myometrial contraction plays a role since, although vasopressin stimulates myometrial activity in women, it has not been shown to have this effect in rabbits : large doses depress motility and tonus whilst small ones have no effect (Weinstein & Friedman, 1935;Morgan, 1937;Robson, 1937;Fuchs, 1964).…”