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Studies for elucidation of pathological status on multiple chemical sensitivity from immunological function tests

Research Project

Project/Area Number 17K09179
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hygiene and public health
Research InstitutionLouis Pasteur Center for Medical Research

Principal Investigator

Tanigawa Mari  公益財団法人ルイ・パストゥール医学研究センター, その他部局等, 研究員(移行) (50291018)

Co-Investigator(Kenkyū-buntansha) 内山 巌雄  公益財団法人ルイ・パストゥール医学研究センター, その他部局等, 研究員(移行) (20151897)
野瀬 三佳  公益財団法人ルイ・パストゥール医学研究センター, その他部局等, 研究員(移行) (30590228)
東 賢一  近畿大学, 医学部, 准教授 (80469246)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords化学物質過敏症 / 免疫機能異常 / IFN-γ産生能 / 内科 / 公衆衛生 / サイトカイン産生 / 免疫機能 / 自律神経 / におい / 環境保健
Outline of Final Research Achievements

Backgrounds: The etiology of multiple chemical sensitivity (MCS) is poorly understood, but dysregulation of the immune system has been assumed as part of the pathophysiology. Methods: Blood samples were obtained from MCS individuals and from age-and sex- matched healthy controls. Lymphocyte subsets were analyzed. Productions of cytokines were assayed. All participants completed a questionnaire including questions on MCS (QEESI).
Results: Significantly lower γ-IFN productions were revealed in MCS patients (P < 0.05) compared with controls. In MCS, numbers of regulatory T cells or other immunological parameters were not significantly different from controls. Conclusion: Decreased γ-IFN production in MCS suggested dysfunctions of immunological reactions through Th1 and associated cytokine response not involving lgE mediated mechanisms. Further examinations are required for understanding the immunological disorders in MCS.

Academic Significance and Societal Importance of the Research Achievements

日本における化学物質過敏症(MCS)の患者数は数十万人と推定される。化学物質への曝露後多様な症状が反復し社会活動が困難となる例が多いが一般臨床検査では異常がなく診断がつかない。診断は既知の疾患除外と化学物質への曝露既往、質問票による評価等から診療経験のある少数の医師に委ねられている。
MCSは化学物質暴露による神経、内分泌、免疫系の異常を介し起こるとされるが、発症機序や病態は解明されておらず、臨床や公衆衛生の観点からも早急な検査・診断法の開発が必要である。本研究によりMCSの病態理解が進み、指標になる検査が見つかれば、医学的、社会学的にも助けになることが期待され、その社会的貢献度は高い。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 2018 2017

All Journal Article (8 results) (of which Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Journal Article] Risk assessment concepts and approaches for indoor air chemicals in Japan2020

    • Author(s)
      Kenichi Azuma, Hideto Jinno, Toshiko Tanaka-Kagawa, Shinobu Sakai
    • Journal Title

      International Journal of Hygiene and Environmental Health, International Journal of Hygiene and Environmental Health

      Volume: 225 Pages: 1-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chemical intolerance: involvement of brain function and networks in exposure to extrinsic stimulus substances perceived as hazardous2019

    • Author(s)
      Kenichi Azuma, Iwao Uchiyama, Mari Tanigawa, Ikuko Bamba, Michiyo Azuma, Hirohisa Takano, Toshikazu Yoshikawa, Kou Sakabe
    • Journal Title

      Environmental Health and Preventive Medicine

      Volume: - Pages: 24-61

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 化学物質過敏症患者の嗅覚知覚に関する検討2019

    • Author(s)
      萬羽郁子,東賢一,東実千代,谷川真理,内山巌雄
    • Journal Title

      におい・かおり環境学会誌

      Volume: 50 Pages: 27-39

    • NAID

      130008113186

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Factors affecting self-reported chemical intolerance: A five-year follow-up study in Japan.2019

    • Author(s)
      Azuma K, Uchiyama I, Kunugita N.
    • Journal Title

      J Psychosom Res.

      Volume: 118 Pages: 1-8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 健康リスクの立場から見た環境過敏症の予防について2019

    • Author(s)
      東 賢一
    • Journal Title

      室内環境

      Volume: 22

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] 化学物質過敏症患者の嗅覚知覚に 関する検討2019

    • Author(s)
      萬羽郁子、東賢一、東実千代、谷川真理、内山巌雄
    • Journal Title

      におい・かおり環境学会誌

      Volume: 50 Pages: 27-39

    • NAID

      130008113186

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 健康リスクの立場からみた環境過敏症の予防について2019

    • Author(s)
      東 賢一
    • Journal Title

      室内環境

      Volume: 22

    • NAID

      130007687131

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] シックハウス(室内空気汚染)間題に関する国内での取り組みについて2018

    • Author(s)
      東賢一
    • Journal Title

      ビルと環境

      Volume: 161 Pages: 51-55

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Effects of olfactory stimullusby by odor on cersbral blood flow and peripheralblood oxygenl evels in multiple chemical sennsiyhity2018

    • Author(s)
      Azuma K.,Uchiyama I, Tanigawa M, Bamba I, Azuma M, Takano H, Yoshikawa T, Sakabe
    • Organizer
      the 32nd International Congress on OccupationalHealth
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 脳科学的見地からみた環境過敏症2018

    • Author(s)
      東 賢一
    • Organizer
      第27回日本臨床環境医学会学術集会シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 健康リスクの立場からみた環境過敏症の予防について2018

    • Author(s)
      東 賢一
    • Organizer
      平成30年度室内環境学会学術大会環境過敏症分科会セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Effects of olfactory stimulus by odor on cerebral blood flow and peripheral blood oxygen levels in multiple chemical sensitivity2017

    • Author(s)
      Azuma K, Uchiyama I, Tanigawa M, Bamba I, Azuma M, Takano H, Yoshikawa T, Sakabe K
    • Organizer
      The 32 nd International Congress on Ocupational Health, Dublin, Ireland, 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2021-02-19  

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