The association between prenatal perfluoroalkyl substance exposure and symptoms of attention-deficit/hyperactivity disorder in 8-year-old children and the mediating role of thyroid hormones in the Hokkaido study

Itoh, Sachiko; Yamazaki, Keiko; Suyama, Satoshi et al.

Environment international, 2022, 159, 107026

Permalink : https://hdl.handle.net/2115/83948

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https://doi.org/10.1016/j.envint.2021.107026     4

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アクセス権
metadata only access
URI
https://hdl.handle.net/2115/83948
タイトル
The association between prenatal perfluoroalkyl substance exposure and symptoms of attention-deficit/hyperactivity disorder in 8-year-old children and the mediating role of thyroid hormones in the Hokkaido study
著者
Itoh, Sachiko ; Yamazaki, Keiko ; Suyama, Satoshi ; Ikeda-Araki, Atsuko ; Miyashita, Chihiro ; Bamai, Yu Ait ; Kobayashi, Sumitaka ; Masuda, Hideyuki ; Yamaguchi, Takeshi ; Goudarzi, Houman ; Okada, Emiko ; Kashino, Ikuko ; Saito, Takuya ; Kishi, Reiko
e-Rad_Researcher
90580936
著者名
Itoh, Sachiko
e-Rad_Researcher
60732120
著者名
Yamazaki, Keiko
著者名
Suyama, Satoshi
e-Rad_Researcher
00619885
著者名
Ikeda-Araki, Atsuko
e-Rad_Researcher
70632389
著者名
Miyashita, Chihiro
e-Rad_Researcher
90752907
著者名
Bamai, Yu Ait
e-Rad_Researcher
10733371
著者名
Kobayashi, Sumitaka
e-Rad_Researcher
20869119
著者名
Masuda, Hideyuki
e-Rad_Researcher
80894972
著者名
Yamaguchi, Takeshi
e-Rad_Researcher
40713607
著者名
Goudarzi, Houman
e-Rad_Researcher
00766537
著者名
Okada, Emiko
e-Rad_Researcher
20515936
著者名
Kashino, Ikuko
e-Rad_Researcher
20246961
著者名
Saito, Takuya
e-Rad_Researcher
80112449
著者名
Kishi, Reiko
言語
英語
キーワード
Perfluoroalkyl substances
Neurodevelopment
Thyroid hormone
Mediation analysis
Birth cohort
発行日
2022
出版者
Elsevier
収録物名
Environment international
巻(号)
159
ページ
107026
抄録
Background: Disruption of thyroid hormone (TH) levels during pregnancy contributes to attention deficit hyperactivity disorder (ADHD). Exposure to perfluoroalkyl substances (PFAS) during gestation may affect levels of maternal and neonatal TH; however, little is known about the effect of PFAS on ADHD mediated by TH. Objectives: We investigated the impact of maternal PFAS exposure on children's ADHD symptoms with the mediating effect of TH. Methods: In a prospective birth cohort (the Hokkaido study), we included 770 mother-child pairs recruited between 2002 and 2005 for whom both prenatal maternal and cord blood samples were available. Eleven PFAS were measured in maternal serum obtained at 28-32 weeks of gestation using ultra-performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry. TH and thyroid antibody, including thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), free thyroxine (FT4), thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb) were measured in maternal blood during early pregnancy (median 11 gestational weeks) and in cord blood at birth. ADHD symptoms in the children at 8 years of age were rated by their parents using the ADHD-Rating Scale (ADHD-RS). The cut-off value was set at the 80th percentile for each sex. Results: Significant inverse associations were found between some PFAS in maternal serum and ADHD symptoms among first-born children. Assuming causality, we found only one significant association: maternal FT4 mediated 17.6% of the estimated effect of perfluoroundecanoic acid exposure on hyperactivity-impulsivity among firstborn children. Discussion: Higher PFAS levels in maternal serum during pregnancy were associated with lower risks of ADHD symptoms at 8 years of age. The association was stronger among first-born children in relation to hyperactivity-impulsivity than with regard to inattention. There was little mediating role of TH during pregnancy in the association between maternal exposure to PFAS and reduced ADHD symptoms at 8 years of age.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0160-4120
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1016/j.envint.2021.107026