Interactive effects of nonylphenol and bisphenol A exposure with oxidative stress on fetal reproductive indices

Yu Fang Huang, Pei Wei Wang, Li Wei Huang, Meng Han Lin, Winnie Yang, Hsin Chang Chen, Kuo Pin Yu, Mei Lien Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Nonylphenol (NP) and/or bisphenol A (BPA) may have reproductive effects. Although the mechanisms of action remain unclear, steroid hormones biosynthesis, hypothalamus pituitary adrenal axis activity, oxidative stress, and crosstalk interaction of NP and BPA mixture and its pathways may play a contributory role. This cross-sectional study examined whether the interactive effects of NP/BPA and oxidative stress biomarkers played a role in reproductive indices (penis length and anogenital distance (AGD)) in 244 mother-fetus pairs. Four biomarkers of oxidative stress, (8-hydroxy-2′-deoxyguanosine (8-OHdG), 8-nitroguanine (8-NO2Gua), 8-iso-prostaglandin F (8-isoPF), and 4-hydroxy-2-nonenal-mercapturic acid (HNE-MA)) were simultaneously analyzed using the high-performance liquid chromatography-electrospray ionization tandem mass spectrometry method. No significant associations were found between reproductive indices and NP/BPA or oxidative stress biomarkers. Maternal exposure to a mixture of NP and BPA may enhance 8-OHdG. Interactive effects were found in the high 8-isoPF group, and prenatal NP exposure was inversely associated with penis length (β = −3.68 mm; p = 0.01). Similar results were noted among boys who were born to mothers in the high 8-isoPF group, in which BPA was inversely associated with penis length (β = −4.43 mm; p = 0.005). Our findings suggest important implications for prenatal exposure to oxidative stress, as evidenced by the 8-isoPF2α level. Thus, NP and BPA may interact to shape fetal reproductive tract development, particularly in boys. The interactive effects of NP/BPA, oxidative stress, and reproductive indices should be considered.

Original languageEnglish
Pages (from-to)567-574
Number of pages8
JournalEnvironmental Research
Volume167
DOIs
StatePublished - Nov 2018

Keywords

  • Bisphenol A
  • Nonylphenol
  • Oxidative stress
  • Reproductive indices

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