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Effects of amyloid beta accumulation in the brain on the neuroprotective mechanism of anti-inflammatory effects of physical activity

Research Project

Project/Area Number 20K19442
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionNational Center for Geriatrics and Gerontology

Principal Investigator

Makino Keitaro  国立研究開発法人国立長寿医療研究センター, 老年学・社会科学研究センター, 研究員 (90775545)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords身体活動 / 炎症 / アミロイド / アミロイドβ
Outline of Research at the Start

身体活動による神経保護および認知機能の保持には、神経炎症の抑制が関与していると考えられている。また、神経炎症と脳内アミロイドβ(Aβ)は密接な関連性が示唆されている。本研究では、地域高齢者を対象とした2年間の縦断調査から、身体活動の抗炎症作用による神経保護メカニズムに対して脳内アミロイドβ蓄積が及ぼす影響の解明を目指す。本研究により、今後の非薬物療法による認知症予防施策の効率化が期待される。

Outline of Final Research Achievements

In the present study, we aimed to examine whether the prospective association between daily physical activity, inflammatory marker, and cognitive function differs depending on the amount of amyloid-β accumulation in the brain among community-dwelling older people.
In the age-adjusted analysis, change of physical activity and inflammatory marker were associated with change of memory performance in the group with high amyloid-β accumulation, but not in the group with low amyloid-β accumulation. Our results suggest that the interaction between physical activity, inflammatory markers, and cognitive function in community-dwelling older people may differ depending on the amount of amyloid-β accumulation in the brain.

Academic Significance and Societal Importance of the Research Achievements

近年、脳内におけるアミロイドβの蓄積および神経炎症の亢進がアルツハイマー病の発症と密接に関連していることが明らかにされた。また、脳の健康状態に対する身体活動の有益性には神経炎症の抑制が関わっている可能性が示唆されているが、アミロイドβの脳内蓄積量を考慮した検討は未だ十分に行われていなかった。本研究で得られた知見は、身体活動による認知機能の維持向上効果が現れやすい対象者の層別化など、今後の認知症予防戦略の効率化へ寄与し得ると考えられる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Prospective associations of physical frailty with future falls and fear of falling: A 48-month cohort study2021

    • Author(s)
      Makino K, Lee S, Bae S, Chiba I, Harada K, Katayama O, Shinkai Y, Makizako H, Shimada H
    • Journal Title

      Phys Ther

      Volume: 101 Issue: 6

    • DOI

      10.1093/ptj/pzab059

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Difference in sarcopenia characteristics associated with physical activity and disability incidences in older adults2021

    • Author(s)
      Chiba I, Lee S, Bae S, Makino K, Shinkai Y, Katayama O, Harada K, Takayanagi N, Shimada H
    • Journal Title

      J Cachexia Sarcopenia Muscle

      Volume: 12 Issue: 6 Pages: 1983-1994

    • DOI

      10.1002/jcsm.12801

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lifestyle Activity Patterns Related to Physical Frailty and Cognitive Impairment in Urban Community-Dwelling Older Adults in Japan2021

    • Author(s)
      Katayama Osamu、Lee Sangyoon、Bae Seongryu、Makino Keitaro、Shinkai Yohei、Chiba Ippei、Harada Kenji、Shimada Hiroyuki
    • Journal Title

      Journal of the American Medical Directors Association

      Volume: 22 Issue: 3 Pages: 583-589

    • DOI

      10.1016/j.jamda.2020.05.031

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship between instrumental activities of daily living performance and incidence of mild cognitive impairment among older adults: A 48-month follow-up study2020

    • Author(s)
      Makino K, Lee S, Bae S, Shinkai Y, Chiba I, Shimada H
    • Journal Title

      Arch Gerontol Geriat

      Volume: Epub ahead of print Pages: 104034-104034

    • DOI

      10.1016/j.archger.2020.104034

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Life satisfaction is associated with the relationship between mild cognitive impairment and the incidence of disability2021

    • Author(s)
      Katayama O, Lee S, Bae S, Makino K, Chiba I, Harada K, Shinkai Y, Shimada H
    • Organizer
      Alzheimer's Association International Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 認知機能評価ツール(NCGG-FAT)の成績に関連する脳部位の同定2021

    • Author(s)
      原田健次, 李相侖, 裵成琉, 牧野圭太郎, 千葉一平, 片山脩, 新海陽平, 島田裕之
    • Organizer
      第10回日本認知症予防学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 地域在住高齢者における身体活動量と要介護発生との関連~運動機能及び骨格筋量による検討~2020

    • Author(s)
      千葉一平, 李相侖, 裵成琉, 原田健次, 牧野圭太郎, 新海陽平, 片山脩, 島田裕之
    • Organizer
      第62回日本老年医学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 地域在住高齢者における身体的フレイルによる海馬内構造体の容積の違い2020

    • Author(s)
      原田健次, 裵成琉, 李相侖, 千葉一平, 牧野圭太郎, 片山脩, 新海陽平, 島田裕之
    • Organizer
      第62回日本老年医学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 地域在住高齢者における座位時間の身体活動時間への置き換えと要介護発生との関連-isotemporal substitution model による検討-2020

    • Author(s)
      千葉一平, 李相侖, 裵成琉, 牧野圭太郎, 新海陽平, 原田健次, 片山脩, 島田裕之
    • Organizer
      第7回日本予防理学療法学会学術大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2023-01-30  

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