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Elucidating the Effects of Exercise on Cognitive Function in Type 2 Diabetes Mellitus: Focus on Hippocampal Lactate Transport

Research Project

Project/Area Number 20K19565
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionGunma University

Principal Investigator

Shima Takeru  群馬大学, 共同教育学部, 講師 (60846377)

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: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords2型糖尿病 / 海馬 / 運動 / miRNA / miR-Seq / 学習・記憶機能 / 乳酸 / 情動認知 / モノカルボン酸トランスポーター
Outline of Research at the Start

Ⅱ型糖尿病は、海馬が司る学習・記憶機能の低下を招く。近年、学習・記憶機能を維持する脳機構として、海馬の乳酸輸送担体2(MCT2)を介した乳酸輸送が示されており、申請者はこれまでに、習慣的な運動がⅡ型糖尿病動物の海馬のMCT2を回復させると同時に学習・記憶機能を改善することを明らかにした。本研究では、運動効果の顕現におけるMCT2の重要性とともに、網羅的な遺伝子解析によりMCT2を中心とした海馬の乳酸輸送機構が変容するメカニズムの解明に迫ることで、Ⅱ型糖尿病の学習・記憶機能の改善に向けた分子標的の提案を目指す。

Outline of Final Research Achievements

The current study examined the effects of four weeks of light-intensity exercise on memory functions, hippocampal MCT2, and miRNA in type 2 diabetic animals (ob/ob mice). We found that four weeks of light-intensity exercise improved memory function and hippocampal Mct2 mRNA levels, which were reduced in sedentary ob/ob mice. Based on miR-Seq, the current exercise regimen reversed T2DM-induced alterations of hippocampal nine miRNAs. The hippocampal expression of miR-200a-3p, which is involved in the expression of Mct2, was reversed with light-intensity exercise, implying that miR-200a-3p/Mct2 in the hippocampus would be a possible clinical target for treating T2DM-induced memory dysfunction.

Academic Significance and Societal Importance of the Research Achievements

本研究を通じて、2型糖尿病に伴い低下する認知機能の海馬内機構や運動効果の標的候補が見出された。薬理学的な操作を含む更なる研究を積むことで、認知機能の維持を目的とした治療標的としての有用性や、最適な運動処方を提案することにつながりうる。加えて、運動効果という生理的な生体反応を基盤として、2型糖尿病の海馬を保護する、全く新しい運動擬似薬の開発につながる可能性もある。

Report

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

    (14 results)

All 2022 2021 2020 Other

All Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Remarks (3 results)

  • [Journal Article] Long-term light and moderate exercise intervention similarly prevent both hippocampal and glycemic dysfunction in presymptomatic type 2 diabetic rats2022

    • Author(s)
      Jesmin Subrina、Shima Takeru、Soya Mariko、Takahashi Kanako、Omura Koki、Ogura Kasane、Koizumi Hikaru、Soya Hideaki
    • Journal Title

      American Journal of Physiology-Endocrinology and Metabolism

      Volume: 322 Issue: 3 Pages: E219-E230

    • DOI

      10.1152/ajpendo.00326.2021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Four weeks of light-intensity exercise enhances empathic behavior in mice: the possible involvement of BDNF2022

    • Author(s)
      Shima Takeru、Kawabata-Iwakawa Reika、Onishi Hayate、Jesmin Subrina、Yoshikawa Tomonori
    • Journal Title

      Brain Research

      Volume: 1787 Pages: 147920-147920

    • DOI

      10.1016/j.brainres.2022.147920

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Influences of Changes in Physical Activity Levels With Easing Restriction of Access to the University Campus on Empathy and Social Supports in College Students During the COVID-19 Pandemic2022

    • Author(s)
      Shima Takeru、Nakao Hayato、Tai Kentaro、Shimofure Tomonori、Jesmin Subrina、Arai Yoshihiro、Kiyama Keiko、Onizawa Yoko
    • Journal Title

      Asia Pacific Journal of Public Health

      Volume: - Issue: 4 Pages: 101053952210833-101053952210833

    • DOI

      10.1177/10105395221083381

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between self-reported empathy and level of physical activity in healthy young adults2021

    • Author(s)
      Shima Takeru、Jesmin Subrina、Nakao Hayato、Tai Kentaro、Shimofure Tomonori、Arai Yoshihiro、Kiyama Keiko、Onizawa Yoko
    • Journal Title

      The Journal of Physical Fitness and Sports Medicine

      Volume: 10 Issue: 1 Pages: 45-49

    • DOI

      10.7600/jpfsm.10.45

    • NAID

      130007967779

    • ISSN
      2186-8123, 2186-8131
    • Year and Date
      2021-01-25
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Small Amounts of Physical Activity During the COVID-19 Pandemic May Contribute to Improve Empathy in Young Adults: An Observational Study2021

    • Author(s)
      Takeru Shima, Subrina Jesmin, Hayato Nakao, Kentaro Tai, Tomonori Shimofure, Yoshihiro Arai, Keiko Kiyama, and Yoko Onizawa
    • Journal Title

      Asia Pacific Journal of Public Health

      Volume: - Issue: 5 Pages: 1-3

    • DOI

      10.1177/10105395211016333

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between self-reported empathy and sport experience in young adults2021

    • Author(s)
      Takeru Shima、Kentaro Tai、Hayato Nakao、Tomonori Shimofure、Yoshihiro Arai、Keiko Kiyama、Yoko Onizawa
    • Journal Title

      Journal of Physical Education and Sport

      Volume: 21 Pages: 66-72

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 「体育・スポーツって必要なの?」に脳への作用から応える2022

    • Author(s)
      島 孟留
    • Organizer
      体育科学シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 2型糖尿病の認知機能は乳酸投与で改善するのか?2021

    • Author(s)
      島 孟留, 大西 颯, 吉川 僚慶, 齋藤 梨花子
    • Organizer
      第76回 日本体力医学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Benefits of Moderate Exercise Regimen that Ameliorates Cognitive Decline and Hippocampal Lactate Transporter in OLETF Rats2021

    • Author(s)
      Hideaki Soya, Takeru Shima
    • Organizer
      2021 International Congress on Obesity and MEtabolic Syndrome
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 大学生の運動習慣ならびに体力と共感性の関係2020

    • Author(s)
      島孟留、中雄勇人、田井健太郎、霜触智紀、新井淑弘、木山慶子、鬼澤陽子
    • Organizer
      第75回 日本体力医学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 中学校柔道授業が共感性に及ぼす影響 -固技を主体とした単元の検討-2020

    • Author(s)
      島孟留、田井健太郎
    • Organizer
      日本武道学会第53回大会
    • Related Report
      2020 Research-status Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/takerushima/published_papers/36461562/edit

    • Related Report
      2021 Annual Research Report
  • [Remarks] ResearchGate

    • URL

      https://www.researchgate.net/profile/Takeru-Shima

    • Related Report
      2021 Annual Research Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/takerushima

    • Related Report
      2020 Research-status Report

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

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