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Development of heart failure therapy by altering cardiac energy metabolism

Research Project

Project/Area Number 18K11125
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionGihu University of Medical Science (2020-2023)
Gifu University (2018-2019)

Principal Investigator

Obata Koji  岐阜医療科学大学, 薬学部, 准教授 (40378229)

Co-Investigator(Kenkyū-buntansha) 高木 都  奈良県立医科大学, 医学部, 研究員 (00033358)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords心収縮 / エネルギー代謝 / 心不全 / 脂質代謝 / 高血圧 / 糖尿病 / 心臓 / 筋収縮 / 酸素消費 / エネルギー効率 / 心機能 / 収縮効率 / メタボローム解析 / 収縮 / エネルギー消費 / 収縮性 / メタボローム / 脂肪酸 / 拡張能 / 基礎代謝 / カルシウムハンドリング
Outline of Final Research Achievements

The goal of this study is to clarify whether cardiac functions such as left ventricular contraction and relaxation can be regulated by changing cardiac energy metabolism. It is also to propose methods to make the heart stronger and longer, and to prevent and treat heart disease. The heart converts chemical energy, called ATP, into mechanical energy, called pulsation (contraction and relaxation). In this study, we performed metabolomic analysis of the cardiac energy metabolism of spontaneously hypertensive rats (SHR), which develop heart failure due to pressure overload alone caused by hypertension, and the same strain of SHR/NDmc-cp (CP), which develops obesity and diabetes. In other words, we compared the amount of metabolites comprehensively. From the results, we will clarify the metabolic pathways involved in cardiac function.

Academic Significance and Societal Importance of the Research Achievements

高齢者社会において心不全パンデミックの到来が懸念されている。そこで、本研究では、心臓をエネルギー代謝の面から、強く長持ちさせる方法や心臓病の予防や治療法を提案することを目指している。従来の心不全治療は降圧薬や利尿薬といった負荷を軽減させるものか、強心薬のどちらかであるが、前者は弱ってしまった心臓を強く収縮させることはできない、後者は弱った心臓に鞭打つだけである。そのため、心不全パンデミックに向けて新規の治療法の開発が急がれる。そのため、本研究は近い将来に訪れるであろう心不全パンデミックの回避への基礎となる。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020 2019 2018

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (1 results) (of which Invited: 1 results)

  • [Journal Article] 心臓病治療薬開発に向けた左心室メカノエナジェティクス解析の重要性2022

    • Author(s)
      小畑孝二
    • Journal Title

      Precision Medicine誌

      Volume: 5 Pages: 87-89

    • Related Report
      2021 Research-status Report
  • [Journal Article] 心臓病治療に向けた左心室メカノエナジェティクス解析による収縮効率の重要性2021

    • Author(s)
      小畑孝二、高木 都
    • Journal Title

      Medical Science Digest

      Volume: 47(1) Pages: 40-42

    • Related Report
      2020 Research-status Report
  • [Journal Article] 左心室メカノエナジェティクス解析による心臓病治療に向けた収縮効率の重要性2020

    • Author(s)
      小畑孝二、高木 都
    • Journal Title

      BIO Clinica

      Volume: 35(9) Pages: 59-62

    • Related Report
      2020 Research-status Report
  • [Journal Article] Mechanism underlying the negative inotropic effect in rat left ventricle in hyperthermia: the role of TRPV12020

    • Author(s)
      Obata Koji、Morita Hironobu、Takaki Miyako
    • Journal Title

      The Journal of Physiological Sciences

      Volume: 70 Issue: 1 Pages: 4-4

    • DOI

      10.1186/s12576-020-00734-5

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The energy-saving effect of a new myosin activator, omecamtiv mecarbil, on LV mechanoenergetics in rat hearts with blood-perfused isovolumic contraction model2019

    • Author(s)
      Obata Koji、Morita Hironobu、Takaki Miyako
    • Journal Title

      Naunyn-Schmiedeberg's Archives of Pharmacology

      Volume: 392 Issue: 9 Pages: 1065-1070

    • DOI

      10.1007/s00210-019-01685-4

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Methods for the Preparation of an Excised, Cross-Circulated Rat Heart2018

    • Author(s)
      Obata Koji、Takaki Miyako
    • Journal Title

      Methods Mol Biol.

      Volume: 1816 Pages: 117-132

    • DOI

      10.1007/978-1-4939-8597-5_9

    • ISBN
      9781493985968, 9781493985975
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Left ventricular mechanoenergetics in excised, cross-circulated rat hearts under hypo-, normo-, and hyperthermic conditions2018

    • Author(s)
      Obata Koji、Takeshita Daisuke、Morita Hironobu、Takaki Miyako
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 16246-16246

    • DOI

      10.1038/s41598-018-34666-3

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ラット摘出心臓の血液交叉灌流実験系を用いた温度変化による左心室メカノエナジェティクス解析 ― TRPV1の役割 ―2020

    • Author(s)
      小畑孝二,森田啓之,高木 都
    • Organizer
      第97回 日本生理学会大会
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2025-01-30  

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