[Glycoproteins in maternal and fetal blood and amniotic fluid. Variations in normal and pathologic pregnancies].

In this brief note, which is a preliminary report, the authors investigated systematically the variations, during normal and complicated pregnancies, of the concentrations of alpha-1-antitrypsin, orosomucoid, transferrin and alpha feto-protein, simultaneously in maternal serum, fetal serum and amniotic fluid. There exists during normal pregnancies a difference between the concentrations of alpha-1-antitrypsin and of orosomucoid found for primigravidae and for multigravidae. The role of these glycoproteins in preventing the mother from rejecting the fetus is discussed. In addition for Rhesus isoimmunization the clinical value of the variations in the levels of transferrin is discussed.