title: [Chorionic gonadotropin (beta-HCG) in the amniotic fluid in normal pregnant women].
abstract: Human chorionic gonadotropin beta subunit (beta-HCG) was measured in amniotic fluid and radioimmunoassay levels compared with those obtained in plasma from normal pregnant women. Amniotic beta-HCG exhibited a secretory pattern similar to that seen in the plasma compartment. Nonetheless amniotic beta-HCG had an elevation peak later than its plasma counterpart, with a progressive decrease that persisted throughout gestation without reaching a nadir as it occurred in plasma. Such a pattern of HCG production contained in the amnion is compatible with an HCG conformation released by the syncytiotrophoblast.
authors: A R
authors: AR
authors: Ayala
authors: J
authors: J
authors: Serrano
authors: E
authors: E
authors: de la Luna-Olsen
authors: M T
authors: MT
authors: Leis
authors: H
authors: H
authors: Bustos
authors: R
authors: R
authors: López-García
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D006063:Chorionic Gonadotropin / Q000032:analysis* / Q000097:blood; D018997:Chorionic Gonadotropin, beta Subunit, Human; D005260:Female; D005865:Gestational Age; D006801:Humans; D010446:Peptide Fragments / Q000032:analysis* / Q000097:blood; D011247:Pregnancy; D011863:Radioimmunoassay; D014327:Trophoblasts / Q000378:metabolism
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments
vernacular_title: Gonadotropin coriónica (beta-HCG) en el líquido amniótico de embarazadas normales.