Studies on Sexual Hormones. IX. Hormonal Influence on the Uptake of Radiophosphorus by Endocrine Organs. (1)

The relationship between the weight of target organs (ovary and uterus) and the uptake of radiophosphorus under the influence of gonadotropin was examined and the response was expressed as the counts per organ reduced by the analysis of covariance with the organ weight. Periodical change of radioactivity of the target organs was traced after the administration of radiophosphorus. The phosphorus-accumulating activity of the target organs after the administration of gonadotropin was studied and the maxima of those of ovaries and uterus were found respectively at the 72nd and 96th hour.