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Investigation about nteraction among carnitine deficiency, dynapenia and diaphragm muscle dysfunction for the effective nutritional intervention in heart failure

Research Project

Project/Area Number 19K08582
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Yamamoto Kazuhiro  鳥取大学, 医学部, 教授 (90303966)

Co-Investigator(Kenkyū-buntansha) 加藤 雅彦  鳥取大学, 医学部, 教授 (40362884)
三明 淳一朗  鳥取大学, 医学部, 准教授 (40372677)
衣笠 良治  鳥取大学, 医学部, 講師 (60598944)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords心不全 / フレイル / ダイナペニア / カルニチン / 横隔膜
Outline of Research at the Start

社会の高齢化とともに心不全患者が急増しており、心不全パンデミックと呼ばれている。心不全は患者の生命予後およびQOLを損なう進行性の病態である。我々は、四肢骨格筋の筋力低下、呼吸筋のひとつである横隔膜の機能障害、栄養障害の各々が心不全患者の運動能やQOLを低下させることを明らかとした。栄養素の中では、カルニチンの欠乏が心不全患者の退院後の予後と関係していることを報告している。この研究では心不全患者における四肢骨格筋の機能、横隔膜の機能、カルニチンレベルの相互関連を観察研究で明らかとし、カルニチン投与に有効性が期待できる患者群を見出し、介入研究に結びつけることを目指している。

Outline of Final Research Achievements

The aim of this study was to clarify the relation of carnitine deficiency with dynapenia and diaphragm muscle dysfunction in patients with heart failure. The observational study suggested the relation between carnitine deficiency and dynapenia. In contrast, there was no significant relation between carnitine deficiency and diaphragm muscle dysfunction. We randomly assigned elder HFpEF patients with carnitine deficiency into two groups treated with and without carnitine administration for 12 months. Handgrip strength significantly decreased in the patients treated without carnitine administration after 12 months, but was preserved in the patients treated with carnitine administration.
Our results suggest that carnitine administration is effective for dynapenia which is one of major causes for frailty in elder patients with heart failure.

Academic Significance and Societal Importance of the Research Achievements

高齢心不全患者のQOL低下にフレイルが大きな影響を及ぼしている。現在、心不全患者のフレイルに対する効果的な介入手段は確立していない。また、フレイルを有する高齢心不全患者の背景は多様であり、one-size-fits-allの発想では効果的な対策を講じることは困難とされている。本研究において、カルニチン欠乏とフレイルの大きな要因であるダイナペニアの関係が明らかとなった。この研究成果は、高齢心不全患者のカルニチン欠乏の有無をチェックする重要性、欠乏している患者へのカルニチン補充が効果的であることを示唆しており、高齢心不全患者のフレイル対策、さらにはQOL改善に寄与しうると考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results)

  • [Journal Article] Simple Score to Predict Treatment Response to Low-Dose Tolvaptan in Patients with Heart Failure2022

    • Author(s)
      Takami A, Kinugasa Y, Kamitani H, Nakamura K, Hirai M, Yanagihara K, Matsubara K, Kato M, Yamamoto K.
    • Journal Title

      International Heart Journal

      Volume: 63 Issue: 2 Pages: 247-254

    • DOI

      10.1536/ihj.21-558

    • NAID

      130008161343

    • ISSN
      1349-2365, 1349-3299
    • Year and Date
      2022-03-30
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of body mass index and ablation procedures on atrial fibrillation recurrence in Japanese patients2022

    • Author(s)
      Takami A, Miake J, Kato M, Ogura K, Okamura A, Tomomoti T, Tsujimoto D, Kawatani S, Kato M, Yamamoto K.
    • Journal Title

      J Asian Pacific Society Cardiol

      Volume: in press

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] HFpEFの理解はいまどこまで進んでいるか?2022

    • Author(s)
      山本 一博
    • Journal Title

      Heart View

      Volume: 26 Pages: 38-43

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Trimethylamine N-oxide and Outcomes in Patients Hospitalized with Acute Heart Failure and Preserved Ejection Fraction.2021

    • Author(s)
      Kinugasa Y, Nakamura K, Kamitani H, Hirai M, Yanagihara K, Kato M, Yamamoto K.
    • Journal Title

      ESC Heart Fail

      Volume: in press Issue: 3 Pages: 2103-2110

    • DOI

      10.1002/ehf2.13290

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Home-based inspiratory muscle training in patients with heart failure and preserved ejection fraction-a preliminary study-2020

    • Author(s)
      Kinugasa Y, Sota T, Ishiga N, Nakamura K, Kamitani H, Hirai M, Yanagihara K, Kato M, Yamamoto K.
    • Journal Title

      J Card Fail

      Volume: 26 Issue: 11 Pages: 1022-1023

    • DOI

      10.1016/j.cardfail.2020.08.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] L-carnitine supplementation in heart failure patients with preserved ejection fraction; a pilot study.2020

    • Author(s)
      Kinugasa Y, Sota T, Ishiga N, Nakamura K, Kamitani H, Hirai M, Yanagihara K, Kato M, Yamamoto K.
    • Journal Title

      Geriatr Gerontol Int

      Volume: 20 Issue: 12 Pages: 1244-1245

    • DOI

      10.1111/ggi.14060

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ultrasonographic assessment of organs other than the heart in patients with heart failure.2019

    • Author(s)
      Yamamoto K, Kinugasa Y, Sugihara S, Mukai-Yatagai N, Kato M.
    • Journal Title

      J Med Ultrasonics

      Volume: 46 Issue: 4 Pages: 389-397

    • DOI

      10.1007/s10396-019-00953-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Diastolic function in patients with frailty and dynapenia2021

    • Author(s)
      山本 一博
    • Organizer
      Echo Seoul & Cardiac Imaging 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Diagnostic components and classification.2020

    • Author(s)
      Yamamoto K
    • Organizer
      HFA Discoveries operated by Heart Failure Association of European Society of Cardiology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrasonographic Assessment of Non-Cardiac Organs in the Evaluation of the Severity of Heart Failure2019

    • Author(s)
      Yamamoto K
    • Organizer
      American Society of Echocardiography 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] HFpEF-associated changes related to microcirculation2019

    • Author(s)
      Yamamoto K
    • Organizer
      Heart Failure Seoul 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 左室駆出率の低下した心不全2019

    • Author(s)
      山本一博
    • Organizer
      第59回日本呼吸器学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 心不全における栄養管理の意義2019

    • Author(s)
      衣笠良治、中村研介、神谷裕子、平井雅之、柳原清孝、加藤雅彦、山本一博
    • Organizer
      第23回日本心不全学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 心不全の考え方 ~病態からガイドラインまで~2019

    • Author(s)
      山本一博
    • Organizer
      第25回日本心臓リハビリテーション学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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