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Metabolic changes in pregnant women and application for the biomonitoring of phthalates

Research Project

Project/Area Number 17K15860
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hygiene and public health
Research InstitutionJapan Organization of Occupational Health and Safety Japan Bioassay Research Center

Principal Investigator

Goto Yuko  独立行政法人労働者健康安全機構 日本バイオアッセイ研究センター(試験管理部、病理検査部), その他部局等, 室長補佐 (80722090)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsフタル酸エステル / 妊婦 / 代謝速度 / モニタリング / 次世代影響 / 血中リパーゼ活性 / 構造-活性相関
Outline of Final Research Achievements

Recently, phthalates, which are softener additives for plastics, were pointed out the effects for next generation in animal and epidemiological studies. The purpose of this study was elucidation of the metabolic changes for phthalates in pregnant women and the potential for exposure monitoring for the appropriate exposure evaluation. Therefore, the effects of temperature, incubation time and concentration on the metabolism in the blood collected from pregnant women of di (2-ethylhexyl) phthalate (DEHP) were tested. In the case of low DEHP concentration, the DEHP metabolic rate did not changed during pregnancy, indicating the possibility of DEHP exposure monitoring using the blood collected from pregnant women. In the future, this measurement method of DEHP metabolic rate is desired to apply other phthalates.

Academic Significance and Societal Importance of the Research Achievements

ヒトにおけるフタル酸エステル類の代謝は肝臓や小腸などのいくつかの器官において行われるが、それらの代謝活性をヒトの臓器で直接計測することは倫理的に難しいことから、疫学研究や動物実験によるフタル酸エステル類の毒性の知見が収集されている。しかしながら、生物種によるフタル酸エステル類の代謝速度の違いも示されていることから、ヒトにおけるフタル酸エステル類の代謝を知るためには、ヒト試料を用いることが望ましい。本研究の結果により、ヒトの妊娠期のフタル酸エステル類の代謝状況が明らかとなり、ヒト母体中のフタル酸エステル類が胎児に与える影響との関連性がより鮮明となる。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (1 results)

All 2019

All Presentation (1 results)

  • [Presentation] 妊婦血液中のフタル酸ジ-2-エチルヘキシルの代謝2019

    • Author(s)
      ○後藤裕子、伊藤由起、内藤久雄、荒木敦子、岸玲子、 那須民江
    • Organizer
      第28回環境化学討論会
    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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