抄録
With purpose of investigating constraction of the pregnant uterus from enzymological stand point the authors l,2) confirmed that the activity of actomyosin ATPase prepared from rat’s pregnant uterus was significantly elevated during contraction, and that the enzyme was activated by Mg and Ca ions and inhibited by Fe and Cu ions. In the present experiment the same enzyme activity was observed under influences of anorganic ions derivd from the placental tissue.
