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Elucidating brain connectivity networks in freezing of gait in Parkinson's disease

Research Project

Project/Area Number 21K17524
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionOsaka University (2022-2023)
National Institute of Information and Communications Technology (2021)

Principal Investigator

Taniguchi Seira  大阪大学, 大学院医学系研究科, 特別研究員(PD) (00894370)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsすくみ足 / パーキンソン病 / 脳機能 / Dynamic Causal Modeling / リハビリテーション / Dynamic causal modeling / Freezing of gait / 脳内ネットワーク / fMRI
Outline of Research at the Start

パーキンソン病の主な運動障害の1つにすくみ足がある.これまでのメカニズム解明の試みでは,局所的な脳活動や結合を「静的」脳モデルとして説明したが,刻々と変化するすくみ足を治療するためには,従来の「静的」脳モデルではなく,大局的なプロセスを含んだダイナミックな脳活動という側面から病態を捉え直す必要性がある(「動的」脳モデル).さらに,すくみ足は根治的な治療法が無いため,リハビリテーションへの期待が高い.そこで,本研究は大規模な脳機能研究により,すくみ足の原因となる脳活動の動的パターンを突き止め,「動的」脳モデルを構築した上で,リハビリテーションの新規治療法を提案する.

Outline of Final Research Achievements

The aim of this study was to identify effective connectivity underlying freezing of gait in patients with Parkinson’s disease (PD), and to propose treatments based on a model. Applying spectral dynamic causal modeling, we have identified novel effective connectivity and an independent self-inhibitory connectivity underlying freezing of gait. Our findings imply that modulating the effective connectivity between the left DLPFC and MLR through neurostimulation or other interventions could be a target for reducing freezing of gait in PD.

Academic Significance and Societal Importance of the Research Achievements

本研究は、データ駆動型アプローチを用いて、すくみ足の脳内メカニズムとなるeffective connectivityを特定した初めての研究となった。本研究の成果は、左背外側前頭前野の脳活動を調節することで、すくみ足に関与する両側の中脳歩行誘発野の機能を正常化できる可能性を示した。この結果は、すくみ足の脳内メカニズムの解明に寄与するだけでなく、治療のターゲットとなる脳領域を明らかにした点でも意義深い。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (3 results)

All 2023 2022 2021

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

  • [Journal Article] Measurement instruments to assess basic functional mobility in Parkinson's Disease: A systematic review of clinimetric properties and feasibility for use in clinical practice2023

    • Author(s)
      Seira Taniguchi, Ariko Yamamoto
    • Journal Title

      Japanese Journal of Comprehensive Rehabilitation Science

      Volume: 14 Issue: 0 Pages: 16-25

    • DOI

      10.11336/jjcrs.14.16

    • ISSN
      2185-5323
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determinants of impaired bed mobility in Parkinson’s disease: Impact of hip muscle strength and motor symptoms2022

    • Author(s)
      Seira Taniguchi、Nicholas D'cruz、Miho Nakagoshi、Toshinori Osaki、Alice Nieuwboer
    • Journal Title

      NeuroRehabilitation

      Volume: - Issue: 4 Pages: 445-452

    • DOI

      10.3233/nre-210301

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Validation and Reliability of the Japanese Version of the Modified Parkinson Activity Scale (M-PAS)2021

    • Author(s)
      Taniguchi Seira、Nakata Yoko、Inoue Michiko、Marumoto Kohei
    • Journal Title

      Progress in Rehabilitation Medicine

      Volume: 6 Issue: 0 Pages: n/a

    • DOI

      10.2490/prm.20210051

    • NAID

      130008132085

    • ISSN
      2432-1354
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2021-04-28   Modified: 2025-01-30  

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