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Effects of exercise and atrophy on skeletal muscle mitochondria

Research Project

Project/Area Number 18K10809
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionMeiji University (2020-2021)
University of Tsukuba (2018-2019)

Principal Investigator

Kohei Takeda  明治大学, 政治経済学部, 専任講師 (00807349)

Project Period (FY) 2018-04-01 – 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 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords骨格筋 / ミトコンドリア / 運動 / 顕微鏡観察 / イメージング
Outline of Final Research Achievements

The aim of this study was to observe the mitochondria structure in skeletal muscle using an optical microscope system. Muscle atrophy by sciatic denervation induced elimination of transverse mitochondria in muscle fiber. Similar results showed by hindlimb suspension induced muscle atrophy.Though the muscle weight recovery of atrophy by reloading, disorganized mitochondria structure was observed. These results indicate that the change of mitochondria structure do not coincide with muscle weight recovery.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果として光学顕微鏡システムで骨格筋に存在するミトコンドリアを直接観察することが可能となった。また、筋萎縮時に起きるミトコンドリア構造の変化の一端について新たに示すことができた点に学術的意味がある。
今後はこの手法を用いることで糖尿病や加齢が骨格筋ミトコンドリア構造に及ぼす影響について明らかとすることを目指す。また、ミトコンドリア構造に限らず筋線維内の種々のタンパク質局在についても解析することができるため更なる研究の発展が期待できる。

Report

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

    (8 results)

All 2021 2019 2018

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] 代償性過負荷により肥大した骨格筋に対するカロリー制限の影響2021

    • Author(s)
      永瀨麻梨凜、白井隆長、北岡 祐、武田紘平、武政 徹
    • Journal Title

      日本運動生理学雑誌

      Volume: 28 Pages: 1-8

    • NAID

      40022538581

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of eicosapentaenoic acid intake on denervation-induced mitochondrial adaptation in mouse skeletal muscle2018

    • Author(s)
      Kohei Takeda, Yu Kitaoka, Koichi Watanabe, Shumpei Miyakawa, Martin R. Lindley and Tohru Takemasa
    • Journal Title

      The Journal of Physical Fitness and Sports Medicine

      Volume: 7 Issue: 5 Pages: 261-267

    • DOI

      10.7600/jpfsm.7.261

    • NAID

      130007489421

    • ISSN
      2186-8123, 2186-8131
    • Year and Date
      2018-09-25
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-intensity Intermittent Swimming Training Increases Mitochondrial Dynamics Proteins in Mouse Skeletal Muscle2018

    • Author(s)
      Kohei TAKEDA, Yu KITAOKA and Tohru TAKEMASA
    • Journal Title

      Adv. Exerc. Sports Physiol

      Volume: 24 Pages: 13-16

    • NAID

      40021603877

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Effect of Sciatic Denervation on Mitochondrial Structure in Single Muscle Fiber2019

    • Author(s)
      Kohei Takeda, Kaoru Kato, Tohru Takemasa
    • Organizer
      European College of Sports Science Congress Prague 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 後肢懸垂および再接地が骨格筋ミトコンドリアダイナミクスに及ぼす影響2019

    • Author(s)
      武田紘平、武政徹
    • Organizer
      第27回日本運動生理学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 後肢懸垂および再接地による骨格筋ミトコンドリア構造適応の3次元解析2019

    • Author(s)
      武田紘平、加藤薫、武政徹
    • Organizer
      第74回日本体力医学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 筋萎縮に伴う骨格筋ミトコンドリア構造の適応2019

    • Author(s)
      武田紘平
    • Organizer
      第11回分子骨格筋代謝研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 除神経による筋線維ミトコンドリア構造適応の超解像顕微鏡解析2018

    • Author(s)
      武田紘平、石山静葉、加藤薫、武政徹
    • Organizer
      第73回日本体力医学会大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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