抄録
Chemical properties were examined in the homogeneous product of gonadotropic hormone obtained from the placenta and that obtained from the urine of pregnant women, and it was found that the two substances were qualitatively identical in the constituent amino acids, sugars, amino sugar, and C- and N-terminal amino acids, although there was a slight difference in each amount. On the other hand, molecular weight of the substance obtained from the placenta was about twice that of the substance obtained from the urine. It was assumed from the foregoing facts that the gonadotropic hormone is present as a dimer in the placenta and this is dissociated during excretion into the urine.
