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Parent bisphenol A accumulation in the human maternal-fetal-placental unit.

Bisphenol A (BPA), an endocrine disruptor, is employed in the manufacture of a wide range of consumer products. The suggestion that BPA, at amounts to which we are exposed, alters the reproductive organs of developing rodents has caused concern. At present, no information exists concerning the expos...

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Autores principales: Schönfelder, Gilbert, Wittfoht, Werner, Hopp, Hartmut, Talsness, Chris E, Paul, Martin, Chahoud, Ibrahim
Formato: Texto
Lenguaje:English
Publicado: 2002
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1241091/
https://www.ncbi.nlm.nih.gov/pubmed/12417499
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author Schönfelder, Gilbert
Wittfoht, Werner
Hopp, Hartmut
Talsness, Chris E
Paul, Martin
Chahoud, Ibrahim
author_facet Schönfelder, Gilbert
Wittfoht, Werner
Hopp, Hartmut
Talsness, Chris E
Paul, Martin
Chahoud, Ibrahim
author_sort Schönfelder, Gilbert
collection PubMed
description Bisphenol A (BPA), an endocrine disruptor, is employed in the manufacture of a wide range of consumer products. The suggestion that BPA, at amounts to which we are exposed, alters the reproductive organs of developing rodents has caused concern. At present, no information exists concerning the exposure of human pregnant women and their fetuses to BPA. We therefore investigated blood samples from mothers (n = 37) between weeks 32 and 41 of gestation. Afer the births, we also analyzed placental tissue and umbilical cord blood from the same subjects. We developed a novel chemical derivatization-gas chromatography/mass spectrometry method to analyze parent BPA at concentrations < 1 micro g/mL in plasma and tissues. Concentrations of BPA ranged from 0.3 to 18.9 ng/mL (median = 3.1 ng/mL) in maternal plasma, from 0.2 to 9.2 ng/mL (median = 2.3 ng/mL) in fetal plasma, and from 1.0 to 104.9 ng/g (median = 12.7 ng/g) in placental tissue. BPA blood concentrations were higher in male than in female fetuses. Here we demonstrate parent BPA in pregnant women and their fetuses. Exposure levels of parent BPA were found within a range typical of those used in recent animal studies and were shown to be toxic to reproductive organs of male and female offspring. We suggest that the range of BPA concentrations we measured may be related to sex differences in metabolization of parent BPA or variable maternal use of consumer products leaching BPA.
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spelling pubmed-12410912005-11-08 Parent bisphenol A accumulation in the human maternal-fetal-placental unit. Schönfelder, Gilbert Wittfoht, Werner Hopp, Hartmut Talsness, Chris E Paul, Martin Chahoud, Ibrahim Environ Health Perspect Research Article Bisphenol A (BPA), an endocrine disruptor, is employed in the manufacture of a wide range of consumer products. The suggestion that BPA, at amounts to which we are exposed, alters the reproductive organs of developing rodents has caused concern. At present, no information exists concerning the exposure of human pregnant women and their fetuses to BPA. We therefore investigated blood samples from mothers (n = 37) between weeks 32 and 41 of gestation. Afer the births, we also analyzed placental tissue and umbilical cord blood from the same subjects. We developed a novel chemical derivatization-gas chromatography/mass spectrometry method to analyze parent BPA at concentrations < 1 micro g/mL in plasma and tissues. Concentrations of BPA ranged from 0.3 to 18.9 ng/mL (median = 3.1 ng/mL) in maternal plasma, from 0.2 to 9.2 ng/mL (median = 2.3 ng/mL) in fetal plasma, and from 1.0 to 104.9 ng/g (median = 12.7 ng/g) in placental tissue. BPA blood concentrations were higher in male than in female fetuses. Here we demonstrate parent BPA in pregnant women and their fetuses. Exposure levels of parent BPA were found within a range typical of those used in recent animal studies and were shown to be toxic to reproductive organs of male and female offspring. We suggest that the range of BPA concentrations we measured may be related to sex differences in metabolization of parent BPA or variable maternal use of consumer products leaching BPA. 2002-11 /pmc/articles/PMC1241091/ /pubmed/12417499 Text en
spellingShingle Research Article
Schönfelder, Gilbert
Wittfoht, Werner
Hopp, Hartmut
Talsness, Chris E
Paul, Martin
Chahoud, Ibrahim
Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title_full Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title_fullStr Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title_full_unstemmed Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title_short Parent bisphenol A accumulation in the human maternal-fetal-placental unit.
title_sort parent bisphenol a accumulation in the human maternal-fetal-placental unit.
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1241091/
https://www.ncbi.nlm.nih.gov/pubmed/12417499
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