[Alpha-amylase in the course of normal pregnancy and puerperium. I. Blood serum ].

The study was carried out in a group of 280 women (46 non-pregnant women, 24 pregnant women in I trimester, 50 pregnant women in II trimester, 108--in III trimester and 52 women on 3rd day of puerperium). All the women were healthy, the course of pregnancy normal, puerperium without complications. The women had the activity of alpha-amylase determined, by the Caravay method in the blood serum, blood taken in the morning on an empty stomach, from the cubital vein. The results were calculated statistically. It was found that the activity of alpha-amylase in the blood serum of healthy women decreases as normal pregnancy progresses. The activity of alpha-amylase in the blood serum of women on 3rd day of puerperium maintains the level as in III trimester of pregnancy.