Abstract
Summary
The preliminary administration of high dosages of stilbestrol, estrone, estradiol benzoate and estradiol dipropionate resulted in a marked increase in the ovarian weights of immature rats induced by a chorionic gonadotrophin. The control series were given sesame oil, cottonseed oil, pregnenolone, cholesterol or progesterone. The increase also did not occur if stilbestrol was administered after, instead of before, the chorionic hormone. Although progesterone did not produce increased ovarian weight when given before, a marked enhancement did result when it was administered after, the chorionic hormone.
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