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Central command pathways: involvement of the orexinergic system

Research Project

Project/Area Number 21H03321
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionTottori University

Principal Investigator

Koba Satoshi  鳥取大学, 農学部, 教授 (40565743)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywordsセントラルコマンド / 体性神経系 / 自律神経系 / オレキシン / 視床下部 / 運動 / 光遺伝学 / ラット / 交感神経 / 自律神経 / 歩行 / 交感神経活動 / 中脳
Outline of Research at the Start

運動するために高位中枢より生じるシグナル(セントラルコマンド,CC)は交感神経活性も司るが,その実体は不明である.研究代表者らは,CCの脳内回路の解明研究を進めている.本研究では,これまでに明らかにした知見をもとに,先端の遺伝子工学技術を融合したin vivo生理学実験を軸として,オレキシン系によるCC機能の生成とその投射経路を実験生物学的に調査する.

Outline of Final Research Achievements

Central command is a central neural process that regulates the autonomic nervous system during voluntary exercise, contributing to cardiorespiratory adjustments and thereby enhancing physical performance. Through various classical and modern research techniques, including rat transgenesis, optogenetics, histochemical analyses of the brain, and in vivo physiological experiments, this research project has successfully demonstrated that the hypothalamic orexinergic nervous system contributes to the generation of central command functions required for locomotor exercise. Moreover, the role of orexinergic neurons is likely mediated through the activation of the mesencephalic locomotor region, an area critical for parallel activation of central somatic and autonomic pathways necessary for locomotor exercise. Upstream neural pathways or circuits that regulate orexinergic neuronal activation during exercise deserve further study.

Academic Significance and Societal Importance of the Research Achievements

運動するには筋肉に十分量の血液を送るために自律神経系が働き、各器官の血管の太さや心臓の動きが直ちに変化する。この調節には、筋肉を動かすために脳内で生じるシグナル(セントラルコマンド,CC)による役割が重要である。本研究では、視床下部オレキシン神経系がCCの脳内回路の一端であることを突き止めた。体内の状態を運動に適したものへと速やかに変えていくこの神経系の働きは、歩行の開始・継続に理にかなっている。本研究成果は運動パフォーマンスが心理状態によって変わる仕組みの解明や、各疾病患者の日常生活で見られる血行動態異常の病態解明やその治療法開発に役立つことが期待される。

Report

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

    (20 results)

All 2024 2023 2022 2021 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (12 results) (of which Invited: 6 results) Remarks (3 results)

  • [Journal Article] Hypothalamic Orexinergic Neurons Projecting to the Mesencephalic Locomotor Region Are Activated by Voluntary Wheel Running Exercise in Rats2024

    • Author(s)
      Narai Emi、Watanabe Tatsuo、Koba Satoshi
    • Journal Title

      Yonago Acta Medica

      Volume: 67 Issue: 1 Pages: 52-60

    • DOI

      10.33160/yam.2024.02.006

    • ISSN
      0513-5710, 1346-8049
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Orexinergic neurons contribute to autonomic cardiovascular regulation for locomotor exercise2024

    • Author(s)
      Narai Emi、Yoshimura Yuki、Honaga Takaho、Mizoguchi Hiroyuki、Yamanaka Akihiro、Hiyama Takeshi Y.、Watanabe Tatsuo、Koba Satoshi
    • Journal Title

      The Journal of Physiology

      Volume: -

    • DOI

      10.1113/jp285791

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of <i>c-Fos</i> knockout rats, and observation of their phenotype2023

    • Author(s)
      Yoshimura Yuki、Nakamura Kazuomi、Seno Misako、Mochizuki Misa、Kawai Kenji、Koba Satoshi、Watanabe Tatsuo
    • Journal Title

      Experimental Animals

      Volume: 72 Issue: 1 Pages: 95-102

    • DOI

      10.1538/expanim.22-0077

    • ISSN
      0007-5124, 1341-1357, 1881-7122
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A brainstem monosynaptic excitatory pathway that drives locomotor activities and sympathetic cardiovascular responses2022

    • Author(s)
      Koba Satoshi、Kumada Nao、Narai Emi、Kataoka Naoya、Nakamura Kazuhiro、Watanabe Tatsuo
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 5079-5079

    • DOI

      10.1038/s41467-022-32823-x

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanisms of autonomic cardiovascular adjustments during exercise and stress2022

    • Author(s)
      木場 智史、奈良井 絵美
    • Journal Title

      The Autonomic Nervous System

      Volume: 59 Issue: 4 Pages: 354-357

    • DOI

      10.32272/ans.59.4_354

    • ISSN
      0288-9250, 2434-7035
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 運動興奮性の外側視床下部神経の交感神経抑制能と交感神経活性能2024

    • Author(s)
      木場智史、柴山夏蓮
    • Organizer
      第 76 回日本自律神経学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 自律神経学会学会賞受賞講演2024

    • Author(s)
      木場智史
    • Organizer
      第 76 回日本自律神経学会総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Locomotion and sympathetic cardiovascular responses by orexinergic neurons in rats2023

    • Author(s)
      Emi Narai, Yuki Yoshimura, Akihiro Yamanaka, Naoya Kataoka, Kazuhiro Nakamura, Tatsuo Watanabe, Satoshi Koba
    • Organizer
      第100回日本生理学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Sympathoinhibitory and sympathoexcitatory roles of running exercise-excited lateral hypothalamic neurons assessed by rat FosTRAP2023

    • Author(s)
      Satoshi Koba, Yuki Yoshimura, Kazuomi Nakamura, Karen Shibayama, Emi Narai, Takeshi Hiyama, Tatsuo Watanabe
    • Organizer
      第100回日本生理学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] セントラルコマンドを伝達する視床下部-中脳-延髄経路2023

    • Author(s)
      奈良井絵美,熊田奈桜, 吉村祐貴, 檜山武史, 渡邊達生, 木場智史
    • Organizer
      第17回環境生理学プレコングレス
    • Related Report
      2022 Annual Research Report
  • [Presentation] セントラルコマンドの脳回路メカニズム:オレキシン神経系の役割2022

    • Author(s)
      奈良井絵美,木場智史
    • Organizer
      第49回自律神経生理研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 心疾患と運動時交感神経制御の中枢メカニズム2022

    • Author(s)
      木場智史
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 運動時交感神経活性の中枢回路メカニズム2022

    • Author(s)
      木場智史
    • Organizer
      第75回日本自律神経学会総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 心不全や運動時の交感神経活性を司る中枢回路2022

    • Author(s)
      木場智史
    • Organizer
      第19回九州脳・高血圧・循環制御研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Fos expression in lateral hypothalamic neurons projecting to the mesencephalic locomotor region of rats following voluntary wheel running2022

    • Author(s)
      奈良井絵美、渡邊達生、木場智史
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 心不全の交感神経制御の脳内回路と運動2021

    • Author(s)
      木場智史
    • Organizer
      第76回日本体力医学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 運動とストレス2021

    • Author(s)
      木場智史
    • Organizer
      第74回日本自律神経学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/satoshi_koba

    • Related Report
      2022 Annual Research Report
  • [Remarks] 運動に適した体の状態をすばやく整える、 神経伝達路の発見

    • URL

      https://www.med.tottori-u.ac.jp/files/50172.pdf

    • Related Report
      2022 Annual Research Report
  • [Remarks] リサーチマップ

    • URL

      https://researchmap.jp/satoshi_koba

    • Related Report
      2021 Annual Research Report

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

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