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Epidemiological study to clarify the relation between trace elements in hair and blood and developmental disorder

Research Project

Project/Area Number 19H03883
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 58020:Hygiene and public health-related: including laboratory approach
Research InstitutionShinshu University

Principal Investigator

NOMIYAMA TETSUO  信州大学, 学術研究院医学系, 教授 (70286441)

Co-Investigator(Kenkyū-buntansha) 當房 浩一  信州大学, 学術研究院医学系, 助教 (10741027)
稲葉 雄二  信州大学, 医学部, 特任教授 (30334890)
塚原 照臣  信州大学, 医学部, 教授(特定雇用) (50377652)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords神経発達障害 / 微量元素 / 小児 / 重金属 / 誘導結合プラズマ質量分析 / 微量金属 / 神経発達症 / 毛髪
Outline of Research at the Start

本研究は、生体内微量金属と神経発達症の関連を明らかにすることを目的とする。そのために神経発達症患者を対象、非神経発達症患者を対照とした症例対照研究により、両者の毛髪中微量元素濃度の比較を行う。同時に、研究代表者が所属する組織で参加しているエコチル調査(子どもの健康と環境に関する全国調査)甲信サブユニットセンターで当該調査に参加する学童調査(平成31年度より始まる8歳児調査)において実施するコンピュータを使った神経発達検査と血中微量元素との関連を明らかにする。

Outline of Final Research Achievements

The aim of this study is to clarify the relationship between trace elements and neurodevelopmental disorders. Therefore, we followed up the target population from birth to 8-year-old children, evaluated the high-functioning Autism Spectrum Screening Questionnaire (ASSQ) scores of 8-year-old children (with a cutoff of 19 points) in a birth cohort study, and examined the relationship between ASSQ score positive (=>19) and trace elements in hair. In addition, case-control study was employed for the evaluation between neurodevelopmental disease patients as a case group and the siblings of neurodevelopmental disease patients and trace elements in the hair. These studies suggest a relationship between multiple trace elements and neurodevelopmental disorders. In the future, it is necessary to elucidate the mechanism and consider confounding factors in these relations.

Academic Significance and Societal Importance of the Research Achievements

神経発達障害と微量元素との関連は明らかになっていない。今回の研究結果により、複数の微量元素と神経発達障害との関係が示唆された。今後、個別の微量元素と神経発達障害との機序について更なる基礎研究は必要とされ、また、疫学研究で払拭されていない、交絡因子を加味した更なる疫学研究は必要であるが、今後の研究の方向性について、一定の回答を得ることができた意義は大きいと考えられる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (3 results)

All 2024 2023

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results)

  • [Journal Article] Associations between prenatal exposure to per- and polyfluoroalkyl substances and wheezing and asthma symptoms in 4-year-old children: The Japan Environment and Children's Study2024

    • Author(s)
      Atagi T, Hasegawa K, Motoki N, Inaba Y, Toubou H, Shibazaki T, Nakayama SF, Kamijima M, Tsukahara T, Nomiyama T; Japan Environment and Children's Study (JECS) Group.
    • Journal Title

      Environmental Research

      Volume: 240 Pages: 117499-117499

    • DOI

      10.1016/j.envres.2023.117499

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of dog and/or cat ownership on functional constipation at 3 years of age: the Japan Environment and Children’s study2023

    • Author(s)
      Motoki N, Inaba Y, Toubou H, Hasegawa K, Shibazaki T, Tsukahara T, Nomiyama T; Japan Environment and Children’s Study (JECS) Group.
    • Journal Title

      BMC Pediatrics

      Volume: 23 Issue: 1 Pages: 595-595

    • DOI

      10.1186/s12887-023-04412-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of breastfeeding during infancy on functional constipation at 3 years of age: the Japan Environment and Children’s Study2023

    • Author(s)
      Motoki N, Inaba Y, Toubou H, Hasegawa K, Shibazaki T, Tsukahara T, Nomiyama T; Japan Environment and Children’s Study (JECS) Group.
    • Journal Title

      International Breastfeeding Journal

      Volume: 18 Issue: 1 Pages: 57-57

    • DOI

      10.1186/s13006-023-00592-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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