title: IgG levels in mother-father-cord trios. Evidence for a large reduction of maternal IgG at birth.
abstract: Cord plasmas have a higher concentration of IgG than do the mothers, although autologous, fetal immunoglobulin G is only a small fraction of the neonate's complement. Maternal IgG levels are significantly lower than the nonpregnant adult female, a loss of about one third, which cannot be explained completely by maternal immunization of the fetus.
mesh_terms: D005220:Fathers; D005260:Female; D005312:Fetal Blood / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G; D007743:Labor, Obstetric; D008297:Male; D008431:Maternal-Fetal Exchange; D009035:Mothers; D010641:Phenotype; D011247:Pregnancy; D000509:alpha-Fetoproteins
chemical_list: D007074:Immunoglobulin G; D000509:alpha-Fetoproteins