Activities of some peptidases and glycolytic enzymes in cells of the amniotic fluid. i. Pregnancies terminated prematurely, at term, and postmaturely.

Activities of leucylaminopeptidase, gamma-glutamyl transpeptidase, oxytocinase and aldolase were significantly elevated in the cells of amniotic fluids from cases of premature delivery, compared with cases of delivery at term. The authors conclude that examination of the activities of the aforementioned enzymes can be utilized in prenatal diagnosis of the state of maturity of the fetus.