title: Studies on the half-life of Schwangerschaftsprotein 1 (SP1).
abstract: Schwangerschaftsprotein 1 (SP1) was measured in 10 women at intervals after delivery of the placenta. SP1 alpha decreased more sharply than SP1 beta and showed evidence of a two-compartmental distribution in the mother. Trace amounts of both proteins could still be detected 5 weeks after delivery. It is concluded that the findings support the view that the two proteins are separate biological entities and that there is a possibility that SP1 beta is generated from SP1 alpha in the maternal compartment.
mesh_terms: D000328:Adult; D005260:Female; D006207:Half-Life; D006801:Humans; D049590:Postpartum Period; D011247:Pregnancy; D011257:Pregnancy Proteins / Q000378:metabolism*; D011268:Pregnancy-Specific beta 1-Glycoproteins / Q000378:metabolism*; D013997:Time Factors
chemical_list: D011257:Pregnancy Proteins; D011268:Pregnancy-Specific beta 1-Glycoproteins