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The effects of training conditions for functional recovery and plasticity after stroke in view of GABA change.

Research Project

Project/Area Number 19K19785
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionHirosaki University

Principal Investigator

Sato Chihiro  弘前大学, 保健学研究科, 助教 (70757468)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords脳卒中モデル / 運動麻痺 / リハビリテーション / 脳可塑性 / GABA / KCC2 / 脳梗塞 / 脳出血 / 脳卒中 / 脳出血モデル / 脳梗塞モデル / 神経細胞新生 / 運動 / 脳卒中モデルラット / 作業療法 / 感覚刺激
Outline of Research at the Start

本研究では、リハビリテーションが運動機能回復へ及ぼす影響を行動学的ならびに脳機能の側面から併せて評価することにより、神経科学的根拠に基づいた有効な運動麻痺治療法の開発ならびに脳可塑性のメカニズム解明を目指す。
さらに、電気生理学的手法や形態学的手法を用いて脳可塑性をネットワーク再構築と神経新生の両側面から検証し、さらにGABA作用反転の影響という新しい視点からメカニズム解明を目指す。

Outline of Final Research Achievements

Exercise is effective for motor dysfunction after stroke. Elucidation of the mechanism is urgently needed, because it is unknown. We focused on the mechanism by GABA, an inhibitory substance in brain, acts on excitability through changing in KCC2 during development and having injury. In this study, we analyzed the effects of exrcise and changes in KCC2 after stroke using model animals. As a result, it was found that functional recovery was promoted by exercise, but was greatly affected by exercise style. In addition, KCC2 levels around the lesion decreased markedly after the onset of hemorrhage, and recovered over time.
These results suggested that the prognosis of functional recovery was greatly influenced by the selection of appropriate treatment according to the pathology, and that changing of KCC2 might be involved in the process of functional recovery.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果,脳卒中後に生じた運動機能の回復は運動療法により促進されるが,治療成績は運動様式に大きく左右されることが確認できた.さらに,脳出血巣の周辺組織においては発症直後からKCC2が著しく減少し,経過とともに回復することが明らかとなった.
以上の結果より,病態に応じた適切な治療種目の選択が機能回復の予後を大きく左右すること,機能回復の課程にはKCC2変動を通したGABA作用の転換が脳内ネットワークの再構築に関与する可能性が示唆された.本成果は未だ乏しい脳卒中後リハビリテーションの神経科学的根拠の提言につながるものと考えられる.

Report

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

    (21 results)

All 2023 2022 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (18 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] 研究 要介護女性高齢者の認知機能低下と金銭支払い能力との関係2021

    • Author(s)
      小枝周平, 手塚千尋, 對馬景子, 工藤洋子,佐藤ちひろ,山田順子
    • Journal Title

      作業療法ジャーナル

      Volume: 55 Issue: 6 Pages: 603-610

    • DOI

      10.11477/mf.5001202550

    • ISSN
      0915-1354
    • Year and Date
      2021-06-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of voluntary and forced exercises on motor function recovery in intracerebral hemorrhage rats2020

    • Author(s)
      Chihiro Sato, Kunikazu Tanji, Shuji Shimoyama, Mitsuru Chiba, Misaki Mikami, Shuhei Koeda, Koshi Sumigawa,Kazuki Akahira, Junko Yamada
    • Journal Title

      Neuroreport

      Volume: 31 Issue: 2 Pages: 189-195

    • DOI

      10.1097/wnr.0000000000001396

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrasound irradiation before high-load exercise reduce muscle rigidity associated with delayed- onset muscle soreness2019

    • Author(s)
      Shuhei Koeda, Tatsuki Yoshikawa, Chihiro Sato, Koshi Sumigawa, Junko Yamada
    • Journal Title

      The journal of Physical Therapy Science

      Volume: 31 Pages: 922-924

    • NAID

      130007751407

    • Related Report
      2019 Research-status Report
  • [Presentation] The effect of the forced limb using and stress for recovery of the motor paralysis in ischemic model rat by photochemically induced thrombosis (PIT).2023

    • Author(s)
      Chihiro Sato, Kazuki Akahira, Shuhei Koeda, Misaki Mikami, Kai Hatakenaka, Tomohito Nunomura, Junko Yamada
    • Organizer
      The 100th Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
  • [Presentation] Motor skills training with Forced limb use promotes the functional recovery in rat model of Photochemically induced thrombosis (PIT)2023

    • Author(s)
      Chihiro Sato, Kazuki Akahira, Shuhei Koeda, Misaki Mikami, Kai Hatakenaka, Tomohito Nunomura, Junko Yamada
    • Organizer
      第46回日本神経科学大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 運動様式の違いが脳出血モデルラットの運動麻痺回復に及ぼす影響2022

    • Author(s)
      佐藤 ちひろ,山田 順子
    • Organizer
      第49回日本脳科学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Enrich environment causes the emotional and behavioral changes to the mouse model of autism spectrum disorder.2022

    • Author(s)
      Shuhei Koeda, Honami Yanagimachi, Misaki Mikami, Chihiro Sato, Junko Yamada
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 運動嫌いにより介入が困難であった発達性協調運動障害の一症例2021

    • Author(s)
      小枝周平, 三上美咲, 斉藤まなぶ, 佐藤ちひろ,富田桃子,中村和彦,山田順子
    • Organizer
      第4回日本DCD学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 自閉症モデルマウスに対する強制運動の悪影響2021

    • Author(s)
      小枝周平 , 三上美咲 , 佐藤ちひろ , 山田順子
    • Organizer
      第55回日本作業療法学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Forced exercise causes the negative emotional and behavioral changes to the mouse model of autism spectrum disorder.2021

    • Author(s)
      Shuhei Koeda, Ayaka Monden, Misaki Mikami, Chihiro Sato, Junko Yamada
    • Organizer
      The 44th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Research-status Report
  • [Presentation] The motor recovery and synaptic plasticity was affected by the types of exercise in the hemorrhage model rat2021

    • Author(s)
      Chihiro Sato, Kunikazu Tanji, Koeda Suhei, Mana Kishimoto, Shun Mori, Misaki Mikami, Junko Yamada
    • Organizer
      the 98th Annual Meeting of The Physiological Society of Japan, the 126th Annual Meeting of The Japanese Association of Anatomists
    • Related Report
      2020 Research-status Report
  • [Presentation] 脳出血モデルラットにおける運動種類の違いが運動麻痺回復および脳可塑性関連因子に及ぼす影響2020

    • Author(s)
      佐藤ちひろ, 小枝周平, 三上美咲, 山田順子
    • Organizer
      第54回日本作業療法学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 脳出血ラットにおける運動種類の違いが機能回復に与える影響2020

    • Author(s)
      佐藤ちひろ, 小枝周平, 三上美咲, 山田順子
    • Organizer
      第52回東北生理談話会
    • Related Report
      2020 Research-status Report
  • [Presentation] The motor recovery synaptic plasticity after stroke were affected by the types of exercise2020

    • Author(s)
      Chihiro Sato, Kunikazu Tanji, Mitsuru Chiba, Misaki Mikami, Junko Yamada
    • Organizer
      The 43th Annual Meeting of the Japan Neuroscience Society 2020
    • Related Report
      2020 Research-status Report
  • [Presentation] ニューロリハビリテーション研究紹介~機能回復は脳回復・脳可塑性は可能性~2020

    • Author(s)
      佐藤ちひろ
    • Organizer
      令和2年度 第2回 弘前大学生体応答科学研究センターサロン
    • Related Report
      2020 Research-status Report
  • [Presentation] 脳出血モデルラットにおける異なる種類の運動が機能回復に与える影響2020

    • Author(s)
      佐藤ちひろ、小枝周平、三上美咲、赤平一樹、山田順子
    • Organizer
      第157回弘前医学例会
    • Related Report
      2019 Research-status Report
  • [Presentation] The comparison of the synaptic changes with voluntary and forced rehabilitation in intracerebral hemorrhage model rats.2019

    • Author(s)
      Chihiro Sato, Kunikazu Tanji,Shuji Shimoyama, Misaki Mikami, Kazuki Akahira, Junko Yamada
    • Organizer
      The 1st Japan-Korea-Taiwan Neurorehabilitation Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Chihiro Sato, Kunikazu Tanji,Shuji Shimoyama, Misaki Mikami, Kazuki Akahira, Junko Yamada2019

    • Author(s)
      The effect of the voluntary and forced exercise for the motor recovery and neural function in the stoke model rat
    • Organizer
      The 42th Annual Meeting of the Japan Neuroscience Society.
    • Related Report
      2019 Research-status Report
  • [Presentation] 脳出血モデルラットにおける運動に伴うモチベーションが麻痺回復および脳機能に及ぼす効果2019

    • Author(s)
      佐藤ちひろ、澄川幸志、小枝周平、赤平一樹、山田順子
    • Organizer
      第53回日本作業療法学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 要介護女性高齢者の認知機能低下と金銭支払い動作との関係2019

    • Author(s)
      小枝周平, 佐藤ちひろ, 澄川幸志, 吉川達己, 工藤洋子
    • Organizer
      第53回日本作業療法学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 作業療法学生における授業形式とストレスの関係2019

    • Author(s)
      澄川幸志, 佐藤ちひろ, 田中 真, 小枝周平
    • Organizer
      第53回日本作業療法学会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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