title: Concentrations of pregnancy-specific beta 1-glycoprotein in maternal blood in normal pregnancy and in intrauterine growth retardation.
abstract: A radioimmunoassay has been developed for pregnancy-specific beta 1-glycoprotein (S.P.1), a product of the human placenta. Circulating concentrations of S.P.1 were measured in 153 women in the third trimester of normal pregnancy and in 27 women who delivered children with birth-weight below the 10th centile of the normal range--i.e., with intrauterine growth regardation (I.U.G.R.). Concentrations of S.P.1 showed a skewed distribution and rose progressively to reach a plateau in the last four weeks of pregnancy. In over 70% of women with I.U.G.R. of the fetus, concentrations of S.P.1 were low. Measurement of serum-S.P.1 may provide a new index of fetal wellbeing.
mesh_terms: D001724:Birth Weight; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006023:Glycoproteins / Q000097:blood*; D006801:Humans; D006973:Hypertension / Q000097:blood; D007231:Infant, Newborn; D010922:Placenta Diseases / Q000097:blood*; D010925:Placental Function Tests; D010927:Placental Insufficiency / Q000097:blood*; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000097:blood; D011263:Pregnancy Trimester, Third; D011863:Radioimmunoassay
chemical_list: D006023:Glycoproteins