STUDIES ON THE PHOSPHOROUS COMPOUNDS IN THE UTERINE MUSCLE OF RAT

Abstract

For the purpose of the investigation of the mechanism of the labour, the phosphorous compounds in the uterine muscle of rat were measured through each stage of pregnancy, parturition and weaning.1) RNA-P and RNA-P/DNA-P ratio increased in pregnancy and showed the maximum value at the end stage of pregnancy, and then rapidly decreased in parturition.Since ten days after parturition it began to approach to the value of non-pregnancy.2) DNA-P increased in pregnancy and later on it remained approximately constant.3) Acidsoluble P and lipid P showed a similar change with RNA-P.4) Phosphoprotein was not found through all the stages.