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Verification of the effectiveness of very early stroke rehabilitation and development of new treatment strategies

Research Project

Project/Area Number 20K11269
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionNiigata University of Health and Welfare

Principal Investigator

Tamakoshi Keigo  新潟医療福祉大学, リハビリテーション学部, 講師 (30632658)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords脳卒中 / リハビリテーション / 運動療法 / 超早期運動 / 運動機能評価 / 梗塞巣 / 脳出血 / 超早期介入 / 運動 / ミクログリア / 超急性期 / 脳内改善機序
Outline of Research at the Start

近年,脳卒中発症後24時間以内の超急性期リハの是非が国際的に議論されている.現在,世界各国で,不適切な超急性期リハが提供されているおそれがあるため,早急に治療方針を策定する必要がある.申請者は,脳出血モデルラットを用いたこれまでの検証で,脳出血発症24時間以内の運動介入は脳内炎症を促進させ,機能障害を悪化させることを突き止めた.本研究では,ミクログリア活性化機構や神経細胞死誘導機構から分子細胞基盤を明確にするとともに,残存神経細胞の軸索再編および神経回路再編への悪影響を解明する.さらに,脳内および運動機能障害に悪影響のない超急性期リハの治療法を探索し,臨床応用への手掛かりを見つけ出す.

Outline of Final Research Achievements

This study examined the effect of very early exercise on motor recovery and associated brain damage following intracerebral hemorrhage (ICH) in rats. Collagenase solution was injected into the left striatum to induce ICH. Rats were randomly assigned to receive placebo surgery without exercise or ICH without (ICH) or with very early exercise within 24 h of surgery (ICH+VET). We observed sensorimotor behaviors before surgery, after surgery pre-exercise, and post-exercise. Post-exercise brain tissue was collected 27 h after surgery to investigate Il1b, Tgfb1, and Igf1 mRNA levels in the striatum and sensorimotor cortex. We observed significantly increased skillful sensorimotor impairment and significantly higher Il1b mRNA levels in the striatum of the ICH+VET group compared with the ICH group. Our results suggest that very early exercise may be associated with an exacerbation of motor dysfunction due to increased neuronal death and region-specific changes in inflammatory factors.

Academic Significance and Societal Importance of the Research Achievements

現在の脳卒中超急性期リハビリテーションには科学的根拠が不十分な点が多くあるため早急な解明研究が必要である.特に,脳出血後の超急性期リハビリテーションの効果を分子細胞基盤から全容解明する実証的研究は世界的にも未だ試みられていないため,本研究成果は,臨床研究に向けた基盤データとして活用でき,トランスレーショナル研究の足掛かりとなりえる.さらに,我が国に留まらず世界各国において,脳卒中超急性期リハビリテーション方針の策定や再考のための研究資料となりえ,今後の治療戦略に役立つ.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Comparison of motor function recovery and brain changes in intracerebral hemorrhagic and ischemic rats with similar brain damage2023

    • Author(s)
      Tamakoshi Keigo, Meguro Kota, Takahashi Yuri, Oshimi Ryu, Iwasaki Natsuka
    • Journal Title

      NeuroReport

      Volume: 34(6) Issue: 6 Pages: 332-337

    • DOI

      10.1097/wnr.0000000000001898

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of exercise from a very early stage after intracerebral hemorrhage on microglial and macrophage reactivity states in rats2022

    • Author(s)
      Tamakoshi Keigoa, Maeda Madoka, Murohashi Nae, Saito Amia
    • Journal Title

      Neuroreport

      Volume: 33 Issue: 7 Pages: 304-311

    • DOI

      10.1097/wnr.0000000000001782

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Very Early Exercise Rehabilitation After Intracerebral Hemorrhage Promotes Inflammation in the Brain2021

    • Author(s)
      Keigo Tamakoshi, Madoka Maeda, Shinnosuke Nakamura, Nae Murohashi
    • Journal Title

      Neurorehabilitation and Neural Repair

      Volume: in press Issue: 6 Pages: 501-512

    • DOI

      10.1177/15459683211006337

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Alteration of inflammatory factor expression by very early exercise in rats with cortical infarction.2023

    • Author(s)
      Keigo Tamakoshi, Ami Saito, Akane Watanabe, Masahiro Motoyama, Wataru Arioka
    • Organizer
      第100回日本生理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 脳出血モデルラットにおける超早期運動介入が運動機能回復およびミクログリア活性化に与える影響2021

    • Author(s)
      玉越敬悟, 前田まどか, 室橋七衣, 斉藤愛海
    • Organizer
      第26回日本基礎理学療法学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effects of very early exercise intervention on motor function recovery and microglial activation in a rat model of cerebral hemorrhage2021

    • Author(s)
      Tamakoshi K, Maeda M, Murohashi N, Saito A
    • Organizer
      第64回日本神経化学会大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Very early rehabilitation promotes pro-inflammatory factor expression and delays motor function recovery in cerebral hemorrhage model rats2020

    • Author(s)
      Keigo Tamakoshi, Madoka Maeda, Shintaro nakamura, and Nae Murohashi
    • Organizer
      neuro2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Very early rehabilitation promotes pro-inflammatory factors and neuronal cell death in cerebral hemorrhage rats2020

    • Author(s)
      Keigo Tamakoshi, Madoka Maeda, Shinnosuke nakamura, and Nae Murohashi
    • Organizer
      63rd Annual Meeting of the Japanese Society for Neurochemistry
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脳出血モデルラットにおける超早期リハビリテーションは炎症促進因子の増加および神経細胞死を促進する2020

    • Author(s)
      玉越敬悟 前田まどか 中村慎之介 室橋七衣
    • Organizer
      第25回日本基礎理学療法学会学術大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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