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Genotype and phenotype analysis in arrhythmia induced or related cardiomyopathy

Research Project

Project/Area Number 18K08035
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionOsaka University

Principal Investigator

Ohtani Tomohito  大阪大学, 医学系研究科, 講師 (30623897)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords心筋症 / 不整脈 / 頻脈 / 遺伝的素因 / ミトコンドリア機能 / 心筋可塑性 / ミトコンドリア / genotype / phenotype
Outline of Final Research Achievements

Pathogenic, likely pathogenic, or deleterious variants in the cardiomyopathy-related genes reported in dilated cardiomyopathy were detected in some patients with arrhythmia-induced cardiomyopathy. The frequency was not high and similarly to dilated cardiomyopathy, whereas the numbers of detected variants in each patient were different.
The assessments with 99m-technetium-MIBI scintigraphy revelated that the reversibility of myocardial function in arrhythmia-induced cardiomyopathy was associated with not mitochondria dysfunction reflected wash-out rate but myocardial injury evaluated by the indices of %uptakes. This result indicates that the perfusion index of %uptake combined with arrhythmic information may become a helpful marker for differentiating arrhythmia-induced cardiomyopathy from dilated cardiomyopathy with less reversible myocardium.

Academic Significance and Societal Importance of the Research Achievements

不整脈や頻脈という環境因子により心筋症が発症する人としない人が存在するが、未だ明らかになっていないその発症の差異をもたらす個人差の解明につながっていく研究成果である。アルコールや妊娠などの他の環境因子と同じような疾患発症病態の存在が不整脈と関連する心筋症においても示唆され、研究の発展により将来の心筋症の発症リスクや発症予防、治療法の開発に発展することが期待される。

Report

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

    (15 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (12 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (2 results)

  • [Journal Article] Universal Definition and Classification of Heart Failure: A Report of the Heart Failure Society of America, Heart Failure Association of the European Society of Cardiology, Japanese Heart Failure Society and Writing Committee of the Universal Definition of Heart Failure2021

    • Author(s)
      Bozkurt B, Coats AJ, Tsutsui H, Abdelhamid M, Adamopoulos S, Albert N, Anker SD, Atherton J, Butler J, Drazner MH, Felker GM, Filippatos G, Fonarow GC, Fiuzat M, Gomez-Mesa JE, Heidenreich P, Imamura T, Januzzi J, Jankowska EA, Khazanie P, Kinugawa K, Lam CSP, Matsue Y, Metra M, Ohtani T, et al
    • Journal Title

      J Card Fail

      Volume: - Issue: 4 Pages: 387-413

    • DOI

      10.1016/j.cardfail.2021.01.022

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Perfusion Defect Extent on Myocardial Technetium-99m Sestamibi Predicts Left Ventricular Recovery after Left Ventricular Assist Device Implantation in Non-ischemic Cardiomyopathy2021

    • Author(s)
      Chimura M, Ohtani T, Sera F, Nakamoto K, Konishi S, Higuchi R, Kajitani K, Miyawak H, Suna S, Sakata Y
    • Organizer
      第85回日本循環器学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Myocardial Technetium-99m sestamibi uptake is useful to identify the myocardial reversibility in patients with non-ischemic cardiomyopathy in Stage C and D2021

    • Author(s)
      Chimura M, Ohtani T, Nakamoto K, Sera F, Konishi S, Kajitani K, Higuchi R, Miyawaki H, Sawa Y, Sakata Y
    • Organizer
      9th Annual Utah Cardiac Recovery Symposium (U-CARS) 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 頻脈誘発性心筋症2020

    • Author(s)
      大谷朋仁
    • Organizer
      第6回日本心筋症研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Genetic Backgrounds of Arrhythmia Induced Cardiomyopathy2020

    • Author(s)
      宮脇大、大谷朋仁、宮下洋平、山本泰士、梶谷憲司、仙石薫子、千村美里、小西正三、中本敬、世良英子、木岡秀隆、朝野仁裕、坂田泰史
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非虚血性心筋症患者における安静心筋核医学検査による心臓再同期療法治療効果予測の検討2020

    • Author(s)
      千村美里, 大谷朋仁, 世良英子, 小西正三, 宮脇大, 梶谷憲司, 中本敬, 竹田泰治, 坂田泰史
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非虚血性心筋症患者における血中トロポニン値と心筋症関連遺伝子変異との関連性の検討2019

    • Author(s)
      宮脇大、大谷 朋仁、宮下洋平、木岡秀隆、朝野仁裕、坂田泰史
    • Organizer
      第5回日本心筋症研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 心筋症の遺伝子診断における問題点と解決策2019

    • Author(s)
      朝野仁裕、宮下洋平、山本泰士、永田美保、宮脇大、木岡秀隆、大谷朋仁、坂田泰史
    • Organizer
      第23回日本心不全学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 頻脈誘発性心筋症の遺伝的背景2019

    • Author(s)
      宮脇大、大谷朋仁、宮下洋平、小西正三、世良英子、木岡秀隆、朝野仁裕、坂田 泰史
    • Organizer
      第23回日本心不全学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Myocardial Technetium-99m Sestamibi Examination can prdict potential myocardial reversibility2019

    • Author(s)
      大谷朋仁、千村美里、坂田泰史
    • Organizer
      第83回日本循環器学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Clinical course in severe patients with idiopathic dilated cardiomyopathy who are evaluated the eligibility for heart transplantation2018

    • Author(s)
      宮脇 大、大谷 朋仁、世良 英子、中本 敬、小西 正三、千村 美里、仙石 薫子、樋口 理絵、塚本 泰正、彦惣 俊吾、坂田 泰史
    • Organizer
      第22回日本心不全学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 拡張相肥大型心筋症におけるMYH7遺伝子変異と重症臨床経過との関連性2018

    • Author(s)
      宮脇 大、大谷 朋仁、多久和 綾子、宮下 洋平、木岡 秀隆、朝野 仁裕、坂田 泰史
    • Organizer
      第66回 日本心臓病学会学術集会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 遺伝子の配列情報と発現情報の比較による心筋症原因変異の同定2018

    • Author(s)
      多久和綾子、朝野仁裕、宮脇大、大谷朋仁、山田憲明、四宮春輝、伯井秀行、山本泰士、木岡秀隆、彦惣俊吾、澤芳樹、高島成二、坂田泰史
    • Organizer
      第4回日本心筋症研究会
    • Related Report
      2018 Research-status Report
  • [Book] 循環器診療コンプリート 心筋症2021

    • Author(s)
      北岡裕章(編)、岡田厚、泉知里、奥村貴裕、久保亨、大野聖子、前田修一、寺崎文生、本郷健一、辻田賢一、武田充人、廣野恵一、神谷千津子、大谷朋仁、小垣滋豊、明石嘉浩、猪又孝元、井手友美、筒井裕之
    • Total Pages
      272
    • Publisher
      学研メディカル秀潤社
    • ISBN
      9784780904079
    • Related Report
      2020 Annual Research Report
  • [Book] 医学のあゆみ 277巻4号2021

    • Author(s)
      大谷朋仁
    • Publisher
      医歯薬出版
    • Related Report
      2020 Annual Research Report

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

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