• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Pre- and postnatal exposure to phthalates and child growth

Research Project

Project/Area Number 19K19453
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionHokkaido University

Principal Investigator

Minatoya Machiko  北海道大学, 環境健康科学研究教育センター, 客員研究員 (50733367)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsフタル酸エステル類 / 肥満傾向 / 子どもの発育 / 出生コーホート / 疫学研究 / 環境疫学
Outline of Research at the Start

フタル酸エステル類は半減期が短く、残留性がない一方、恒常的な曝露による健康影響が 懸念される物質である。本研究では、日常的に広く使用されるフタル酸エステル類の胎児期、 および生後の曝露が子どもの発育や体格に関係しているかを検討する。具体的には妊娠中の 母の血中フタル酸エステル類濃度、生後(幼児期~学童期)の尿中フタル酸エステル類濃度 が発育の指標である体重、身長、BMI、皮下脂肪厚、体脂肪率、血圧が関係するかを前向き 出生コーホートの追跡調査として検討し、胎児期、および生後のフタル酸エステル類曝露が、 子どもの肥満に影響を及ぼすか、また男女差があるかを明らかにすることを目的とする。

Outline of Final Research Achievements

The purpose of this study was to evaluate the effect of exposure to phthalates on obesity in children. Obesity and growth curves were assessed from school health examination records for children in the Hokkaido Study. Only for the sixth grade of elementary school, a higher maternal blood MiBP concentration was significantly associated with a lower obesity tendency, while a higher maternal blood MEHP concentration were significantly associated with a higher obesity tendency. However, there was no association between phthalate metabolite concentrations and obesity tendencies among children in other grades. Moreover, there was no association between obesity tendencies and lipid metabolites at age 7. No associations excluding the sixth grade of elementary school were observed, and the inconsistency in direction for obesity tendencies suggests that phthalate metabolite exposure was not strongly associated with childhood obesity.

Academic Significance and Societal Importance of the Research Achievements

化学物質曝露に脆弱な妊婦や子どもを含むヒトに関して、フタル酸エステル類曝露と肥満、脂肪量の関係について十分な検討がされていない。子どもの肥満は成人肥満のリスクとなるため、経時的に子どもを追跡し、胎児期、生後のフタル酸エステル類曝露が子どもの発育や肥満と関係するかを明らかにすることが重要である。

Report

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

    (11 results)

All 2022 2021 2020 2019 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Journal Article] The associations of prenatal exposure to dioxins and polychlorinated biphenyls with neurodevelopment at 6?Months of age: Multi-pollutant approaches2022

    • Author(s)
      Yim Gyeyoon、Minatoya Machiko、Kioumourtzoglou Marianthi-Anna、Bellavia Andrea、Weisskopf Marc、Ikeda-Araki Atsuko、Miyashita Chihiro、Kishi Reiko
    • Journal Title

      Environmental Research

      Volume: 209 Pages: 112757-112757

    • DOI

      10.1016/j.envres.2022.112757

    • Related Report
      2021 Research-status Report
  • [Journal Article] A Review of Recent Studies on Bisphenol A and Phthalate Exposures and Child Neurodevelopment2021

    • Author(s)
      Machiko Minatoya, Reiko Kishi
    • Journal Title

      Int J Environ Res Public Health .

      Volume: 18(7) Issue: 7 Pages: 3585-3585

    • DOI

      10.3390/ijerph18073585

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between atopic dermatitis and children's mental and behavioral health: The Hokkaido Study2020

    • Author(s)
      Machiko Minatoya, Satoshi Suyama, Reiko Kishi
    • Journal Title

      Nihon Koshu Eisei Zasshi(JAPANESE JOURNAL OF PUBLIC HEALTH)

      Volume: 67 Issue: 10 Pages: 745-751

    • DOI

      10.11236/jph.67.10_745

    • NAID

      130007959247

    • ISSN
      0546-1766, 2187-8986
    • Year and Date
      2020-10-15
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 胎児期の有機フッ素化合物ばく露と臍帯血中アディポサイトカイン濃度の関係の検討2021

    • Author(s)
      湊屋街子, 岸玲子
    • Organizer
      80回日本公衆衛生学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 化学物質のアディポカインへの影響、子どもの発育・発達との関連:北海道スタディ (奨励賞受賞講演)2021

    • Author(s)
      湊屋街子
    • Organizer
      80回日本公衆衛生学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Urinary cotinine levels of Japanese school children and associated demographic characteristics: the Hokkaido Study,2020

    • Author(s)
      Machiko Minatoya, Chihiro Miyashita, Atsuko Araki, Yu Ait Bamai, Sumitaka KObayashi, Reiko Kishi
    • Organizer
      The 10th International Network on Children’s Health, Environment and Safety (INCHES)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 妊娠中の母のフタル酸エステル類曝露と子どもの肥満の関連の検討2020

    • Author(s)
      湊屋街子, 岸玲子.
    • Organizer
      第79回日本公衆衛生学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Prenatal exposure to phthalates and childhood anthropometoric and metaolic related outcomes: the Hokkaido Study2019

    • Author(s)
      Minatoya M, Chihiro Miyashita, Yu Ait Bamai, Atsuko Araki, Reiko Kishi
    • Organizer
      ISEE-ISES AC 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 学童期の肥満に関連する要因の検討:北海道スタディ2019

    • Author(s)
      湊屋街子, 宮下ちひろ, 三浦りゅう, 荒木敦子, 岸玲子
    • Organizer
      北海道公衆衛生学会
    • Related Report
      2019 Research-status Report
  • [Remarks] 北海道大学 環境健康科学研究教育センター 研究実績

    • URL

      https://www.cehs.hokudai.ac.jp/research

    • Related Report
      2022 Annual Research Report
  • [Remarks] 研究業績 環境と子どもの健康に関するモニタリング調査 北海道スタディ

    • URL

      https://www.cehs.hokudai.ac.jp/hokkaidostudy/achievement

    • Related Report
      2021 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi