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Elucidation of the mechanism of sudden death in alcohol misuse - the establishment of forensic diagnosis on lethal arrhythmia

Research Project

Project/Area Number 18K10123
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58040:Forensics medicine-related
Research InstitutionMie University

Principal Investigator

KOZAWA Shuji  三重大学, 医学系研究科, 講師 (20379944)

Co-Investigator(Kenkyū-buntansha) 池松 和哉  長崎大学, 医歯薬学総合研究科(医学系), 教授 (80332857)
関島 秀久  三重大学, 医学系研究科, 助教 (60792447)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsアルコール性臓器障害 / RT-qPCR / ウェスタンブロット / 蛍光免疫染色 / 突然死 / 致死性不整脈 / 心エコー / ウェスタンブロット法 / 蛍光免疫染色法 / 心機能解析 / 免疫染色法
Outline of Final Research Achievements

Using a long-term alcohol-administered mouse model, we have attempted to elucidate the mechanism of sudden death, or lethal arrhythmia in alcohol misuse, and to establish the method of forensic diagnosis on sudden cardiac death. As a result, long-term administration of alcohol caused an imbalance between MMP and TIMP in the cardiac tissue of the mouse model and the effect of ctgf, resulting in myocardial remodeling , and a decrease in SERCA2a causes heart failure, resulting in sudden death, or lethal arrhythmia. Furthermore, it has been possible to focus on the candidate molecules that play a main role in causing these changes in cardiac tissue.

Academic Significance and Societal Importance of the Research Achievements

本研究では、アルコールの長期投与により心組織において特異的に変動する分子の候補を絞り込むことができている。これらの分子は、アルコール性突然死の発症に大きく寄与している分子と考えられる。この分子がアルコール誘発性致死性不整脈における主たる役割を担っていることを証明することができれば、アルコール性突然死の発症機構の解明ができるのみならず、その予防にも期待でき、さらには、アルコール性突然死、ひいては致死性不整脈の法医診断を可能とする分子となりうると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results)

  • [Journal Article] アルコール性突然死の発症機構の解明 致死性不整脈の法医学的診断法の確立に向けて2021

    • Author(s)
      小澤周二
    • Journal Title

      BIO Clinica

      Volume: 36(3) Pages: 82-85

    • Related Report
      2020 Annual Research Report
  • [Journal Article] アルコール性突然死の発症機構の解明 致死性不整脈の法医学的診断法の確立に向けて2020

    • Author(s)
      小澤周二
    • Journal Title

      BIO Clinica

      Volume: 35(9) Pages: 868-870

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Changes in myocardial SERCA2a expression in mouse model of chronic alcohol abuse.2019

    • Author(s)
      Kozawa S, Bhasima S, Sekijima H, Nata M.
    • Journal Title

      Albanian Journal of medical and health science

      Volume: 51

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of chronic alcohol use on mouse myocardial tissue.2019

    • Author(s)
      Kozawa S, Ikematsu K, Murase T, Nata M.
    • Journal Title

      Japanese Journal of Alcohol Studies and Drug Dependence

      Volume: 54(1) Pages: 25-38

    • NAID

      120006727135

    • Related Report
      2019 Research-status Report
    • Peer Reviewed

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Published: 2018-04-23   Modified: 2022-01-27  

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