ANTERIOR PITUITARY HORMONE IN THE BLOOD DURING PREGNANCY

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Abstract
The determination in recent years of exact details concerning the cyclic estrual changes that occur in common laboratory animals has served to open a most important field of research. Studies conducted with rats and mice have led to the identification of an ovarian and an anterior pituitary hormone, and in addition have resulted in the development of standard tests for these particular substances. It has thus been possible to find them in various tissues and under different conditions by means of injection experiments carried out with castrated and noncastrated mature and immature female white mice or rats. The present study has been undertaken to obtain some information regarding the presence of such hormones, and particularly the anterior pituitary hormone in the blood of pregnant women, and to note the changes set up in the genital organs of immature female white mice following the injection of human blood serum. TECHNIC The