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Development of neurorehabilitation for stroke combined with pharmacological neuromodulation supported by in vivo bioluminescence

Research Project

Project/Area Number 20H04048
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionHokkaido University

Principal Investigator

Maejima Hiroshi  北海道大学, 保健科学研究院, 教授 (60314746)

Co-Investigator(Kenkyū-buntansha) 真先 敏弘  帝京科学大学, 医学教育センター, 教授 (00585028)
榊間 春利  鹿児島大学, 医歯学域医学系, 教授 (10325780)
高松 泰行  北海道大学, 保健科学研究院, 助教 (40802096)
芳賀 早苗  北海道大学, 保健科学研究院, 特任講師 (60706505)
尾崎 倫孝  北海道大学, 保健科学研究院, 教授 (80256510)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2020: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywordsリハビリテーション / 脳卒中 / 運動 / ニューロモジュレーション / 生体イメージング / 神経栄養因子 / 運動療法
Outline of Research at the Start

脳卒中リハビリテーションにおいて運動療法による機能回復を促進するため、脳の神経細胞の興奮性を制御する中枢性コンディショニングの併用が注目されている。そこで、脳卒中モデル動物を対象に興奮抑制に特異的に作用するシナプス外GABAA受容体の薬理的阻害と運動療法の相乗効果に焦点を当て、生体イメージングを用いた生体脳における神経活動、遺伝子発現を解析することにより、脳卒中の臨床像に極めて近似した生体修飾を精査する。

Outline of Final Research Achievements

We assessed the BDNF expression in the brain based on in vivo bioluminescence using Bdnf-Luc mice and showed the dynamics of exercise-enhance BDNF expression in the brain.GABAA receptors including α5 subunit relate to tonic inhibition of neuronal excitability in the central nervous system. Stroke impairs GABA transporter and inhibits neuronal excitability. Expecting activity-dependent neuroplasticity, we verified the effects of exercise therapy combined with pharmacological inhibition of GABAA receptors including α5 subunit using L-655, 708 on the recovery after hemorrhagic stroke. In model rats for intracerebral hemorrhage, pharmacological neuromodulation using L-655,708 increased the expression of BDNF, crucial factor for neuronal recovery. Combined therapy of exercise and L-655,708 ameliorated the sensorimotor impairment after stroke in a synergic manner.

Academic Significance and Societal Importance of the Research Achievements

脳卒中の回復期リハビリテーションにおいて、理学療法とりわけ運動療法による運動機能の再獲得が期待される。しかし、多くの脳卒中患者において重篤な機能障害が残存し、その後のQOLを著しく障害する。本研究は限られた治療機会において運動療法効果を最大限に促進するため、薬理的神経制御を併用した運動療法の有効性について脳卒中モデル動物を用いて検証し、その併用療法による相乗的な機能回復効果を示した。本研究の実験動物における成果は、従来の脳卒中リハビリテーションにおける運動療法に対するコンディショニングとしての薬理的神経制御の有効性を示す所見であり、今後、臨床応用が期待される基礎的研究成果である。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (17 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Temporal dynamics of brain BDNF expression following a single bout of exercise: a bioluminescence imaging study2023

    • Author(s)
      Inoue T., Ikegami R., Takamatsu Y., Fukuchi M., Haga S., Ozaki M., Maejima H.
    • Journal Title

      Neuroscience Letters

      Volume: 799 Pages: 137120-137120

    • DOI

      10.1016/j.neulet.2023.137120

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epigenetic modifications in the motor cortex caused by exercise or pharmacological inhibition of histone deacetylases (HDACs) after intracerebral hemorrhage (ICH)2023

    • Author(s)
      Maejima H., Okamura M., Inoue T., Takamatsu Y., Nishio T., Liu Y.
    • Journal Title

      Brain Research

      Volume: 1806 Pages: 148286-148286

    • DOI

      10.1016/j.brainres.2023.148286

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Combined treatment with exercise and α5GABAAR inhibitor promotes motor function recovery after intracerebral hemorrhage2022

    • Author(s)
      Inoue T., Takamatsu Y., Nishio T., Soma K., Okamura M., Tohyama H., Maejima H.
    • Journal Title

      Neuroscience Letters

      Volume: 766 Pages: 131344-131344

    • DOI

      10.1016/j.neulet.2021.136344

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ipsilateral BDNF mRNA expression in the motor cortex positively correlates with motor function of the affected forelimb after intracerebral hemorrhage2021

    • Author(s)
      Inoue T., Takamatsu Y., Okamura M., Maejima H.
    • Journal Title

      Brain Research

      Volume: 1767 Pages: 147536-147536

    • DOI

      10.1016/j.brainres.2021.147536

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of detraining on preconditioning exercise-induced neuroprotective potential after ischemic stroke in rats2021

    • Author(s)
      Otsuka Shotaro、Sakakima Harutoshi、Tani Akira、Nakanishi Kazuki、Takada Seiya、Norimatsu Kosuke、Maejima Hiroshi、Maruyama Ikuro
    • Journal Title

      Brain Structure and Function

      Volume: 226 Issue: 7 Pages: 2169-2180

    • DOI

      10.1007/s00429-021-02317-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] In vivo imaging of exercise-induced BDNF expression in the brain using Bdnf-Luc Tg mice2022

    • Author(s)
      Maejima H., Ikagami R., Inoue T., Yakamatsu Y., Fukuchi M., Haga S., Ozaki M.
    • Organizer
      The Society for Neuroscience 51th Annual Meeting (Neuroscience 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Different epigenetic modifications between ipsilateral and contralateral motor cortex caused by exercise and pharmacological inhibition of histone deacetylases after intracerebral hemorrhage.2022

    • Author(s)
      Maejima H., Okamura M., Inoue T., Takamatsu Y. Different epigenetic modifications between ipsilateral and contralateral motor cortex caused by exercise and pharmacological inhibition of histone deacetylases after intracerebral hemorrhage
    • Organizer
      The 44st Annual Meeting of the Japan Neurosciece Society (Neuro2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳出血およびその後の運動が海馬における脳由来神経栄養因子発現に与える影響2022

    • Author(s)
      高松 泰行,相馬 希帆,西尾 太一, 高村 巴菜 , 三島 大雅, 井上 貴博, 前島 洋
    • Organizer
      第27回日本基礎理学療法学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 脳内出血後の運動は損傷側大脳皮質におけるヒストンアセチル化を増強する2022

    • Author(s)
      西尾 太一, 井上 貴博, 高松 泰行, 三島 大雅, 高村 巴菜, 相馬 希帆, 前島 洋
    • Organizer
      第27回日本基礎理学療法学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Temporal changes in GFAP gene expression in the motor cortex after intracerebral hemorrhage2021

    • Author(s)
      Inoue T., Takamura H., Nishio T., Soma K., Takamatsu Y., Maejma H.
    • Organizer
      The 44st Annual Meeting of the Japan Neurosciece Society
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Treadmill exercise concurrent with pharmacological inhibition of alpha5-GABAA receptor improves motor function and enhances spinal cord plasticity after intracerebral hemorrhage in rats.2021

    • Author(s)
      Inoue T., Takamatsu Y., Nishio T., Soma K., Okamura M., Tohyama K., Maejma H.
    • Organizer
      The Society for Neuroscience 50th Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 運動とα5GABA受容体阻害薬の併用は脳出血後の脊髄TrkB遺伝子発現を促進する2021

    • Author(s)
      井上貴博, 高松泰行, 西尾太一, 前島 洋
    • Organizer
      第19回コ・メディカル形態機能学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 運動介入とα5GABA受容体阻害薬の投与が脳出血モデルラットの機能回復に与える影響2021

    • Author(s)
      井上 貴博, 高松 泰行, 西尾 太一, 相馬 希帆, 岡村 未里, 遠山 晴一、前島 洋
    • Organizer
      第26回日本基礎理学療法学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 脳出血モデルラットに対するトレッドミル運動は前肢運動協調性を改善する2021

    • Author(s)
      西尾 太一, 三島 大雅, 相馬 希帆, 近藤 裕輝, 高村 巴菜, 井上 貴博, 岡村 未里, 高松 泰行, 前島 洋
    • Organizer
      第26回日本基礎理学療法学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bdnf mRNA expression level in the ipsilateral motor cortex correlates with motor impairment of paralyzed forelimbafter intracerebral hemorrhage in rats.2021

    • Author(s)
      Inoue T., Takamatsu Y., Okamura M., Maejima H.
    • Organizer
      SfN Global Connectome, A Virtual Event
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time course of motor impairments after intracerebral hemorrhage with internal capsule injury in rats.2020

    • Author(s)
      Inoue T., Takamatsu Y., Okamura M., Nani H., Maejima H.
    • Organizer
      The 42st Annual Meeting of the Japan Neurosciece Society
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pharmacological neuromodulation reducing tonic inhibition of GABAA receptors upregulates neuronal activity in the motor cortex in rats.2020

    • Author(s)
      Inoue T. Takamatsu Y. Okamura H. Mani H. Hasegawa N. Maejima H.
    • Organizer
      11th World Congress for Neurorehabilitation
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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