초록
Changes in the concentration of total protein, albumin, ${\alpha}_1-,{\alpha}_2-,{\beta}-,$ and ${\gamma}-globulin$ in Serum from 138 healthy, normal pregnant woman were studied by the method of cellulose-acetate electrophoresis. 1. The concentration of total serum protein decreased gradually during the first 7 month, and showed a tendency to increase thereafter. 2. The concentration of serum albumin showed a steady continuous fall untill term. 3. During pregnancy,${\alpha}_1$ and ${\beta}-globulin$ value rose, ${\gamma}-globulin$ value fell and ${\alpha}_2-globulin$ value showed no significant change.