Hum. Reprod. Advance Access originally published online on June 9, 2005
Human Reproduction 2005 20(8):2325-2329; doi:10.1093/humrep/deh888
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Exposure to bisphenol A is associated with recurrent miscarriage
1 Department of Obstetrics and Gynecology, Nagoya City University Medical School, Nagoya, 2 Department of Genetics, Institute for Developmental Research, Aichi Human Service Center and 3 Department of Obstetrics and Gynecology, Tokai University School of Medicine, Kanagawa, Japan
4 To whom correspondence should be addressed at: Department of Obstetrics and Gynecology, Nagoya City University Medical School, Mizuho-ku, Nagoya, 4678601 Japan. Email: og.mym{at}med.nagoya-cu.ac.jp
BACKGROUND: Little is known about the influence of high exposure to bisphenol A on recurrent miscarriage and immunoendocrine abnormalities. METHODS: Serum bisphenol A, antiphospholipid antibodies (aPLs), antinuclear antibodies (ANAs), natural killer cell (NK) activity, prolactin, progesterone, thyroid-stimulating hormone (TSH) and free T4 were examined in 45 patients with a history of three or more (311) consecutive first-trimester miscarriages and 32 healthy women with no history of live birth and infertility. Subsequent pregnancy outcome and embryonic karyotype of abortuses were examined prospectively. RESULTS: The mean±SD values for bisphenol A in patients were 2.59±5.23ng/ml, significantly higher than the 0.77±0.38ng/ml found for control women (P=0.024). High exposure to bisphenol A was associated with the presence of ANAs but not hypothyroidism, hyperprolactinaemia, luteal phase defects, NK cell activity or aPLs. A high level of bisphenol A in itself did not predict subsequent miscarriage. CONCLUSION: Exposure to bisphenol A is associated with recurrent miscarriage.
Key words: aneuploidy/antinuclear antibody/bisphenol A/embryonic karyotype/recurrent miscarriage
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