Studies on Sexual Hormones. X. Hormonal Influence on the Uptake of Radiophosphorus by Endocrine Organs. (2)

The ratio RNA-P/DNA-P was compared between the gonadotropin-treated group and the control, and the former showed a low ratio, suggesting a great mitotic activity while the latter showed a high ratio or low activity. Progesterone was found to be a hormone which accelerated the accumulation of the phosphorus at the estrogen-pretreated uterus. The radioisotope technique was applied to Aschheim-Zondek test and could shorten the assay period with a level of significance.