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

Development of ultra-early diagnosis of dementia using technology to visualize homeostatic changes of all related organs

Research Project

Project/Area Number 19H03561
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionNational Cardiovascular Center Research Institute (2020-2022)
Kyoto University (2019)

Principal Investigator

masamichi yamamoto  国立研究開発法人国立循環器病研究センター, 研究所, 特任部長 (70423150)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2022: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsアデノシン三リン酸 / エネルギー代謝 / イメージング / 臓器連関 / ミトコンドリア / 認知症 / アルツハイマー病 / アルツハイマー病モデルマウス / 恒常性 / 全臓器連関
Outline of Research at the Start

本研究の目的は、アルツハイマー病(以下AD)の簡便かつ高効率な超早期診断方法の確立に貢献する非臨床評価基盤を構築することである。申請者が開発する「恒常性変化(ATP量変化)として、脳とそれ以外の臓器との連関を可視化・解析する技術」を軸に、脳以外の組織・細胞が活用可能となる上記基盤の確立を目指す。本研究では、脳以外の臓器を起点とする、ADの超早期診断に繋がる新規因子を同定し、認知症の大規模研究(AMEDプレクリニカルなど)において、該因子が脳画像診断の前段階でAD患者候補の特定に利用されることを目指す。

Outline of Final Research Achievements

Using a technique to visualize ATP dynamics within the body, efforts were made to uncover the relationship between interconnected organs and apply it to early diagnosis of dementia. This technique enabled the measurement of ATP levels from the cellular to the organ level. Through research utilizing this technique, it was discovered that SGLT2 inhibitors, originally known to affect the kidneys, contribute to improving mitochondrial function in the heart. Additionally, experiments conducted on a dementia mouse model revealed that a reduction in ATP levels in the pyramidal cells of the hippocampus occurs three months prior to the manifestation of cognitive and behavioral abnormalities.

Academic Significance and Societal Importance of the Research Achievements

生体内のATP動態を可視化する技術の開発により、細胞質とミトコンドリアのエネルギー代謝をマウスモデルでイメージングすることが可能になりました。SGLT2阻害薬(エンパグリフロジン)が心臓のミトコンドリア機能を改善することを発見し、その適応拡大やメカニズムの解明に重要な意味があります。さらに、認知症モデルマウスで早期の異常が起こる領域と時期を特定することができ、ヒト臨床試験への応用にも期待があります。これらの研究結果を通じて、臨床応用に向けた整備が進み、学術的・社会的に重要な成果となる可能性があります。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (12 results)

All 2023 2022 2021 2019

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (7 results) (of which Invited: 6 results)

  • [Journal Article] The SGLT2 inhibitor empagliflozin improves cardiac energy status via mitochondrial ATP production in diabetic mice.2023

    • Author(s)
      Jungmi Choi, Naoki Matoba, Daiki Setoyama, Daiki Watanabe, Yuichiro Ohnishi, Ryuto Yasui, Yuichirou Kitai, Aki Oomachi, Yutaro Kotobuki, Yoichi Nishiya, Michael Paul Pieper, Hiromi Imamura, Motoko Yanagita, Masamichi Yamamoto
    • Journal Title

      Communications Biology

      Volume: 278 Issue: 1 Pages: 278-278

    • DOI

      10.1038/s42003-023-04663-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glycolytic System in Axons Supplement Decreased ATP Levels after Axotomy of the Peripheral Nerve.2023

    • Author(s)
      Tomofumi Takenaka , Yuichiro Ohnishi , Masamichi Yamamoto , Daiki Setoyama , Haruhiko Kishima
    • Journal Title

      eNeuro

      Volume: 10 Issue: 3 Pages: 0353-22

    • DOI

      10.1523/eneuro.0353-22.2023

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Osteoclasts adapt to physioxia perturbation through DNA demethylation2021

    • Author(s)
      Nishikawa Keizo、Seno Shigeto、Yoshihara Toshitada、Narazaki Ayako、Sugiura Yuki、Shimizu Reito、Kikuta Junichi、Sakaguchi Reiko、Suzuki Norio、Takeda Norihiko、Semba Hiroaki、Yamamoto Masamichi、et al
    • Journal Title

      EMBO reports

      Volume: 22 Issue: 12 Pages: 53035-53035

    • DOI

      10.15252/embr.202153035

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Two‐photon AMPK and ATP imaging reveals the bias between rods and cones in glycolysis utility2021

    • Author(s)
      He Jiazhou、Yamamoto Masamichi、Sumiyama Kenta、Konagaya Yumi、Terai Kenta、Matsuda Michiyuki、Sato Shinya
    • Journal Title

      The FASEB Journal

      Volume: 35 Issue: 9

    • DOI

      10.1096/fj.202101121r

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rostro-caudal different energy metabolism leading to differences in degeneration in spinal cord injury2021

    • Author(s)
      Ohnishi Yuichiro、Yamamoto Masamichi、Sugiura Yuki、Setoyama Daiki、Kishima Haruhiko
    • Journal Title

      Brain Communications

      Volume: 3 Issue: 2

    • DOI

      10.1093/braincomms/fcab058

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] マウス生体内のATP動態2022

    • Author(s)
      山本正道
    • Organizer
      がんとハイポキシア研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 運動時のATP代謝動態解析2022

    • Author(s)
      山本正道
    • Organizer
      日本体力医学学会大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マウス生体内におけるATP動態の可視化2022

    • Author(s)
      山本正道
    • Organizer
      日本生理学会年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マウス生体内におけるATP動態の可視化2022

    • Author(s)
      山本正道
    • Organizer
      第99回日本生理学会年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] マウス生体内におけるATP動態の可視化と応用2021

    • Author(s)
      山本正道
    • Organizer
      第94回 生化学学会年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] マウス生体内におけるATP動態の可視化と応用2021

    • Author(s)
      山本正道
    • Organizer
      第147回 関西実験動物研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] マウス生体内のATP可視化技術によるアルツハイマー病の解明2019

    • Author(s)
      山本正道
    • Organizer
      日本認知症学会
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi