• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The role of the sensory nervous system and osteocytes in the propagation of mechanical stimulation in bone tissue

Research Project

Project/Area Number 21H03324
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 InstitutionNational Institute of Fitness and Sports in Kanoya

Principal Investigator

TAMAKI Hiroyuki  鹿屋体育大学, スポーツ生命科学系, 教授 (40253926)

Co-Investigator(Kenkyū-buntansha) 荻田 太  鹿屋体育大学, スポーツ生命科学系, 教授 (50224134)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2021: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Keywords骨組織 / ひずみ / マイクロCT / 骨 / 機械的刺激 / 神経
Outline of Research at the Start

本研究では、骨への機械的ストレスの効果をより引き出す、骨組織側の機械刺激への感受・反応性を高めることを目的とする。特に、機械的刺激に対する「骨組織側の反応性を高める内的条件のコーディネート」へと発想をシフトする。具体的には、①メカノセンサーである骨細胞が感受刺激をどこまで遠くに広めるかという骨細胞ネットワークの粗密(加齢変化)と骨量改善との関係を調べ、②骨内支配する神経系がこのネットワーク構築に影響するか明らかにする。骨の量的、構造的、強度的評価をCT撮影や骨破断強度試験、また顕微鏡観察や生化学的分析で細胞レベルで評価する。

Outline of Final Research Achievements

The osteocyte network, which influences the sensitivity and responsiveness to mechanical stimuli to bone, is an important structural factor in sensing mechanical stresses caused by exercise and other stimuli, and in promoting bone formation. We investigated the relationship between the sensory nerves in bone and osteocyte network, as well as bone mass and structural changes in rat trabecular bone using micro-CT imaging, bone strength tests, and microscopic observations. Pharmacologic sensory denervation negatively affected the osteocyte network, bone volume, and microstructure in trabecular bone. Aging also resulted in decreased osteocytes, higher stiffness, smaller bone strain, and lower bone volume in cortical bone. The results suggest that sensory nerves may have a role in influencing the osteocyte network and regulating bone tissue volume and structure.

Academic Significance and Societal Importance of the Research Achievements

本研究では、骨内を支配する感覚神経が骨細胞ネットワークと関連し、骨量や骨梁微細構造変化、骨組織の機械的特性にも影響することを示唆する結果を得た。骨への機械的刺激を広める骨細胞ネットワークは運動刺激効果の感受性・反応性に影響する因子のひとつとして理解され、新たな観点として運動処方プログラムの開発等に貢献する可能性がある。特に加齢に伴う骨組織の特性変化、骨のひずみやすさ、骨細胞ネットワークや骨内神経支配の粗密等については機械的刺激に対する感受・反応性に関与し、高齢期の高スティフネスの骨組織への運動効果改善策に意義を有する。

Report

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

    (8 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Tremor associated with muscle fatigue is temporary and beneficial: A case report.2022

    • Author(s)
      Tamaki H, Ogita F,
    • Journal Title

      Journal of Biomedical Science and Engineering

      Volume: 15 Issue: 03 Pages: 103-107

    • DOI

      10.4236/jbise.2022.153011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] TRPA1拮抗薬の投与がラット脛骨骨梁構造に及ぼす影響.2024

    • Author(s)
      田巻弘之, 大賀亮也, 中川弘毅, 古見飛博,
    • Organizer
      第129回日本解剖学会総会・全国学術集会,
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effects of sciatic nerve and capsaicin-induced sensory denervation on trabecular bone in young rats.2023

    • Author(s)
      Nakagawa K, Oga R, Yotani K, Ogita F, Tamaki H,
    • Organizer
      28th Annual Congress of European College of Sport Science,
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Muscle force profiles in the rat tibialis anterior as a function of different frequencies of eccentric muscle contraction.2023

    • Author(s)
      Oga R, Nakagawa K, Hayao K, Tamaki H,
    • Organizer
      28th Annual Congress of European College of Sport Science,
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of hypobaric swimming training on trabecular bone volume and structure in old type 2 diabetic rats.2022

    • Author(s)
      Tamaki H, Yotani K, Ogita F,
    • Organizer
      49th Annual Meeting of European Calcified Tissue Society Congress - ECTS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 若齢及び中高齢期ラット脛骨の荷重による骨ひずみ特性.2022

    • Author(s)
      田巻弘之,中川弘毅,大賀亮也,吉塚有紀子,西山 輝,横田幹太,與谷謙吾,
    • Organizer
      第77回日本体力医学会大会,
    • Related Report
      2022 Annual Research Report
  • [Presentation] In vivo bone strain environment of rat tibia during eccentric, concentric and isometric contractions induced by electrical stimulation.2021

    • Author(s)
      Tamaki H, Yotani K, Ogita F
    • Organizer
      2021 Annual Meeting of American Society for Bone and Mineral Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 坐骨神経及びカプサイシン感受性神経のdenervationがラット脛骨骨梁構造に及ぼす影響.2021

    • Author(s)
      田巻弘之, 與谷謙吾, 荻田 太
    • Organizer
      第76回日本体力医学会大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi