title: Maternal serum and amniotic fluid bisphenol A concentrations in the early second trimester.
abstract: To assess human exposure to bisphenol A (BPA) over a 10-year period, BPA concentrations in maternal serum (MS) and amniotic fluid (AF) obtained at early second trimester were determined. ELISA was used to measure BPA in 200 MS/AF pairs in women carrying fetuses with normal karyotypes (Group I) and in 48 pairs with abnormal karyotypes (Group II). In Group I, BPA concentrations in AF (median: 0.26 ng/ml) were lower (P<0.01) than in MS (2.24 ng/ml). Over a 10-year period, yearly BPA concentrations in MS decreased from 5.62 to 0.99 ng/ml (P<0.001). Eight of the Group I AF samples had relatively high concentrations of BPA (2.80-5.62 ng/ml). In Group II, BPA concentrations in AF (0 ng/ml) were lower (P<0.01) than in MS (2.97 ng/ml). MS BPA concentrations in Group II were higher (P<0.01) than in Group I.
authors.affiliation: Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Kita-ku N15 W7, Sapporo 060-8638, Japan. yhideto@med.hokudai.ac.jp
authors.forename: Hideto
authors.initials: H
authors.lastname: Yamada
authors.forename: Itsuko
authors.initials: I
authors.lastname: Furuta
authors.forename: Emi H
authors.initials: EH
authors.lastname: Kato
authors.forename: Soromon
authors.initials: S
authors.lastname: Kataoka
authors.forename: Yasuteru
authors.initials: Y
authors.lastname: Usuki
authors.forename: Gen
authors.initials: G
authors.lastname: Kobashi
authors.forename: Fumihiro
authors.initials: F
authors.lastname: Sata
authors.forename: Reiko
authors.initials: R
authors.lastname: Kishi
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Fujimoto
mesh_terms: D000328:Adult; D000653:Amniotic Fluid / Q000737:chemistry*; D001559:Benzhydryl Compounds; D004781:Environmental Exposure / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D004968:Estrogens, Non-Steroidal / Q000097:blood*; D005260:Female; D006801:Humans; D007564:Japan; D007621:Karyotyping; D010636:Phenols / Q000097:blood*; D011247:Pregnancy / Q000097:blood*; D011262:Pregnancy Trimester, Second; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D004968:Estrogens, Non-Steroidal; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds