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Elucidation of the onset and mechanisms of acute myocardial infarction and out-of-hospital cardiac arrest caused by particulate matter

Research Project

Project/Area Number 21K07356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionKumamoto University

Principal Investigator

Kojima Sunao  熊本大学, 病院, 客員教授 (50363528)

Co-Investigator(Kenkyū-buntansha) 小島 知子  熊本大学, 大学院先端科学研究部(理), 准教授 (80281137)
松井 邦彦  熊本大学, 病院, 教授 (80314201)
道川 武紘  東邦大学, 医学部, 准教授 (80594853)
Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords粒子状物質 / PM2.5 / 急性心筋梗塞 / 院外心停止 / non-shockable rhythm / 予後
Outline of Research at the Start

粒子状物質による健康被害について最近関心が高まっている。黄砂やPM2.5は大きさや構成成分などが異なるため、影響を受ける病態は最終的には多種多様になることが推測される。本研究の目的は、黄砂やPM2.5といった粒子状物質が重篤な病態である急性心筋梗塞や心停止発症にどの程度影響するのか、またその臨界値を推定できるのかを調査することである。心停止の原因は心原性のみならず、脳血管疾患や呼吸器疾患、悪性新生物など多岐にわたるため、粒子状物質による疾患感受性や粒子状物質の化学成分に基づいた発症メカニズムについて検討を行うことで、黄砂やPM2.5に対する臨床的予防や管理の意義について新たな知見を築く。

Outline of Final Research Achievements

This study conducted an epidemiological investigation into the effects of short-term exposure to PM2.5, a particulate matter, on disease onset and mortality. An increase in PM2.5 concentration has been found to have a significant impact on the incidence rates of respiratory-related out-of-hospital cardiac arrest and acute myocardial infarction (AMI), with black carbon components contributing notably to this effect. Furthermore, the risk of AMI increased significantly following the 2016 Kumamoto earthquake, indicating that changes in living environments caused by natural disasters may influence the risk of cardiovascular diseases. In addition, black carbon, a component of PM2.5, has been linked to the onset of AMI. However, no such associations were observed with water-soluble organic compounds, nitrate ions, or sulfate ions. These findings provide clarity regarding the health effects of particulate matter concentrations and their component-specific impacts.

Academic Significance and Societal Importance of the Research Achievements

粒子状物質による短期曝露が循環器疾患や呼吸器疾患のリスクを有意に高めることを疫学的に実証し、特に黒色炭素成分が重要な寄与因子であることを明らかにした点で学術的意義が高い。また、自然災害による環境変化が循環器リスクに与える影響も示し、環境医学、公衆衛生学、循環器病学の分野に新たな視点を提供した。さらに、粒子状物質の成分別リスク評価という新たなアプローチを提示した点でも意義が大きい。社会的には、大気質改善や災害対応を含む総合的な健康リスク管理の重要性を明確にし、循環器疾患予防、環境政策、災害医療体制整備に資する基盤情報を提供した。今後、地域特性や高リスク集団に応じた精緻な対策立案が求められる。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2025 2024 2023 2022 2021 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results) (of which Invited: 1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Long-Term Impact of the Kumamoto Earthquake on Out-of-Hospital Cardiac Arrest With Cardiac and Non-Cardiac Origins ― An Interrupted Time Series Analysis ―2025

    • Author(s)
      Kojima Sunao、Michikawa Takehiro、Tsujita Kenichi、Yonemoto Naohiro、Tahara Yoshio、Ikeda Takanori、on behalf of the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group
    • Journal Title

      Circulation Journal

      Volume: 89 Issue: 11 Pages: 1824-1832

    • DOI

      10.1253/circj.CJ-24-0277

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2025-10-24
    • Related Report
      2024 Annual Research Report
  • [Journal Article] Three-year follow-up of the impact of Kumamoto Earthquake on acute myocardial infarctions: An interrupted time series analysis2023

    • Author(s)
      Kojima Sunao、Michikawa Takehiro、Tsujita Kenichi
    • Journal Title

      American Heart Journal Plus: Cardiology Research and Practice

      Volume: 26 Pages: 100246-100246

    • DOI

      10.1016/j.ahjo.2022.100246

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fine particulate matter and out-of-hospital cardiac arrest of respiratory origin2021

    • Author(s)
      Kojima Sunao、Michikawa Takehiro、Matsui Kunihiko、Ogawa Hisao、Yamazaki Shin、Nitta Hiroshi、Takami Akinori、Ueda Kayo、Tahara Yoshio、Yonemoto Naohiro、Nonogi Hiroshi、Nagao Ken、Ikeda Takanori、Kobayashi Yoshio
    • Journal Title

      European Respiratory Journal

      Volume: 57 Issue: 6 Pages: 2004299-2004299

    • DOI

      10.1183/13993003.04299-2020

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Black Carbon as a Component of Fine Particulate Matter and the Risk of Acute Myocardial Infarction: a Time-stratified Case-crossover Study2025

    • Author(s)
      Sunao Kojima
    • Organizer
      第89回日本循環器学会学術集会 Late Breaking Cohort Studies
    • Related Report
      2024 Annual Research Report
  • [Presentation] Long-term Impact of Kumamoto Earthquake on Out-of-hospital Cardiac Arrest with Cardiac and Non-cardiac Origins: an Interrupted Time Series Analysis2024

    • Author(s)
      Sunao Kojima
    • Organizer
      第88回日本循環器学会学術集会 Late Breaking Cohort Studies
    • Related Report
      2023 Research-status Report
  • [Presentation] 粒子状物質による大気汚染と循環器疾患2023

    • Author(s)
      小島 淳
    • Organizer
      第64回日本脈管学会学術集会 学術委員会企画シンポジウム
    • Related Report
      2023 Research-status Report
    • Invited
  • [Book] 腎臓2022

    • Author(s)
      小島淳
    • Total Pages
      82
    • Publisher
      日本腎臓財団
    • Related Report
      2021 Research-status Report
  • [Remarks] PM2.5濃度上昇が 心疾患や呼吸器疾患を原因とする心停止の発生に影響?

    • URL

      https://www.atpress.ne.jp/news/252597

    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2026-01-16  

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