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Role of mechanical load in human myocardial excitation contraction coupling

Research Project

Project/Area Number 20300159
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionOkayama University

Principal Investigator

IRIBE Gentarou  Okayama University, 大学院・医歯薬学総合研究科, 助教 (90284885)

Co-Investigator(Renkei-kenkyūsha) NARUSE Keiji  岡山大学, 医歯(薬)学総合研究科, 教授 (40252233)
MOURI Satoshi  川崎医科大学, 医学部, 教授 (00294413)
KATANOSAKA Yuki  岡山大学, 医歯(薬)学総合研究科, 助教 (60432639)
SANO Shunji  岡山大学, 医歯(薬)学総合研究科, 教授 (50235438)
OOSHIMA Yuu  岡山大学, 医歯(薬)学総合研究科, 助教 (80364347)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Keywords生体システム・フィジオーム / 数理モデル / 機械刺激 / 興奮収縮連関 / SAKCAチャネル / 機械電気帰還現象 / 機械電気相互作用 / 心筋細胞モデル / カルシムハンドリング / カルシウムスパーク / カルシウムハンドリング / 国際研究者交流 / イギリス
Research Abstract

The normal heartbeat is the results of complex interactions of individual cardiomyocytes in the heart. Any mechanical disturbance in their interaction could be the risk of heart rhythm disturbances. In the present study, we revealed the underlying mechanisms that cause mechanically-induced arrhythmic beat by investigating mechanically-induced influx and efflux of ions via mechano-sensitive channels.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (20 results)

All 2010 2009 2008 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (14 results) Book (2 results)

  • [Journal Article] Effects of axial stretch on sarcolemmal BKCa channels in post-hatch chick ventricular myocytes.2010

    • Author(s)
      Iribe G, Jin H, Kaihara K, Naruse K.
    • Journal Title

      Exp Physiol. 95(6)

      Pages: 699-711

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of axial stretch on sarcolemmal BKCa channels in post-hatch chick ventricular myocytes2010

    • Author(s)
      Iribe, G
    • Journal Title

      Experimental Physiology

      Volume: 95 Pages: 699-711

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Axial stretch of rat single ventricular cardiomyocytes causes an acute and transient increase in Ca2+ spark rate.2009

    • Author(s)
      Iribe G, Ward CW, Camelliti P, Bollensdorff C, Mason F, Burton RA, Garny A, Morphew MK, Hoenger A, Lederer WJ, Kohl P.
    • Journal Title

      Circ Res. 104(6)

      Pages: 787-795

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Axial stretch of rat single ventricular cardiomyocytes causes an acute andtransient increase in Ca^<2+> spark rate2009

    • Author(s)
      Iribe, G
    • Journal Title

      Circulation Research 104

      Pages: 787-795

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Integrative modelling study of stretch-induced arrhythmia2010

    • Author(s)
      Iribe, G
    • Organizer
      The 4th Shanghai International Conference on Biophysics and Molecular Biology
    • Place of Presentation
      上海
    • Year and Date
      2010-08-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Integrative modelling study of stretch-induced arrhythmia2010

    • Author(s)
      入部玄太郎
    • Organizer
      第49回日本生体医工学会
    • Place of Presentation
      大阪
    • Year and Date
      2010-06-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Stretch-sensitivity of stretch-activated BKCa channels in post-hatch chick ventricular myocytes2010

    • Author(s)
      Iribe, G
    • Organizer
      Biophysical Society 54th Annual Meeting
    • Place of Presentation
      サンフランシスコ
    • Year and Date
      2010-02-22
    • Related Report
      2009 Annual Research Report
  • [Presentation] Role of stretch-activated BKCa channels on stretch-induced arrhythmias in isolated chick ventricle2009

    • Author(s)
      Iribe, G
    • Organizer
      Venice Arrhythmia 2009
    • Place of Presentation
      ベネチア
    • Year and Date
      2009-10-05
    • Related Report
      2009 Annual Research Report
  • [Presentation] Reverse excitation-contraction coupling : the role of the sarcomere2009

    • Author(s)
      Iribe, G
    • Organizer
      European Society of Cardiology Congress 2009
    • Place of Presentation
      バルセロナ
    • Year and Date
      2009-08-31
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effects of bepridil on stretch-induced arrhythmia in isolated chick ventricles2009

    • Author(s)
      Iribe, G
    • Organizer
      European Society of Cardiology Congress 2009
    • Place of Presentation
      バルセロナ
    • Year and Date
      2009-08-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Mechano-electric interaction via calcium handling2009

    • Author(s)
      Iribe, G
    • Organizer
      The 36th Congress of the International Union of Physiological Sciences Satellite Symposium #8
    • Place of Presentation
      香川県直島
    • Year and Date
      2009-08-03
    • Related Report
      2009 Annual Research Report
  • [Presentation] Mechanical modulation of cardiac calcium handling2009

    • Author(s)
      Iribe, G
    • Organizer
      The 36th Congress of the International Union of Physiological Sciences
    • Place of Presentation
      京都
    • Year and Date
      2009-07-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Stretch-sensitivity of chick SAKCA channel after hatching2009

    • Author(s)
      入部玄太郎
    • Organizer
      第48回日本生体医工学会
    • Place of Presentation
      東京
    • Year and Date
      2009-04-25
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effects of bepridil on stretch-induced arrhythmia in isolated chick ventricles.2009

    • Author(s)
      Iribe G, Jin H, Naruse K.
    • Organizer
      European Society of Cardiology Congress 2009
    • Place of Presentation
      Barcelona, Spain.
    • Related Report
      2010 Final Research Report
  • [Presentation] Mechanical modulation of cardiac calcium handling.2009

    • Author(s)
      Iribe G.
    • Organizer
      36th International Congrss of Physiological Sciences
    • Place of Presentation
      Kyoto, Japan.
    • Related Report
      2010 Final Research Report
  • [Presentation] Mechano-electric interaction via calcium handling.2009

    • Author(s)
      Iribe G.
    • Organizer
      36th International Congrss of Physiological Sciences Satellite symposium #8
    • Place of Presentation
      Kyoto, Japan.
    • Related Report
      2010 Final Research Report
  • [Presentation] New Insight into Acute Stretch Effects on Cardiac Calcium Handling2008

    • Author(s)
      Iribe, G
    • Organizer
      European Society of Cardiology Congress 2008
    • Place of Presentation
      ミュンヘン(ドイツ)
    • Year and Date
      2008-09-01
    • Related Report
      2008 Annual Research Report
  • [Presentation] New Insight into Acute Stretch Effects on Cardiac Calcium Handling.2008

    • Author(s)
      Iribe G.
    • Organizer
      European Society of Cardiology Congress 2008
    • Place of Presentation
      Munich, Germany.
    • Related Report
      2010 Final Research Report
  • [Book] 第5章 心血管系細胞への機械刺激負荷技術、バイオテクノロジーシリーズ 細胞分離・操作技術の最前線2008

    • Author(s)
      片野坂友紀、入部玄太郎、山田章、成瀬恵治
    • Publisher
      (株)シーエムシー出版
    • Related Report
      2010 Final Research Report
  • [Book] Chapter 5 "Non-Sarcolemmal Stretch-Activated Channels" in "Cardiac Mechano-Electric Coupling & Arrhythmias 2^<nd> edition"

    • Author(s)
      Iribe G, Kohl P.
    • Publisher
      in press
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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