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Development of small vesell disease score in middle-age to stratify the risk of Alzheimer's disease

Research Project

Project/Area Number 21K10510
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionKansai Medical University

Principal Investigator

YAKUSHIJI Yusuke  関西医科大学, 医学部, 教授 (80418813)

Co-Investigator(Kenkyū-buntansha) 松本 明子  佐賀大学, 医学部, 准教授 (10330979)
原 めぐみ  佐賀大学, 医学部, 准教授 (90336115)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsDementia / Brain MRI / small vessel disease / MRI / 脳ドック健診 / 認知症 / 脳小血管病 / アルツハイマー病 / 血液脳関門 / 中年期 / 生活習慣病
Outline of Research at the Start

アルツハイマー病(AD)は、中年期の1mm未満の脳微細血管障害(通称“脳小血管病” cerebral small vessel disease: cSVD)”による神経・血管ユニット破綻から始まるという説が注目されている。cSVDは、生活習慣病による細動脈硬化の結果として脳MRI上に多様な形態で可視化されるが、これらcSVD画像病変とAD発症との関連は明らかになっていない。
本研究の目的は、健常人集団を用いた縦断研究で、老年期AD発症リスクを層別化する包括的cSVDスコアモデルを中年期MRI画像から構築することにある。

Outline of Final Research Achievements

We sent the Japanese version of Informant Questionnaire on Cognitive Decline in the Elderly(IQCODE -J)questionnaire to 1,698 people who underwent brain checkups. We analyzed 686 people (mean age 58 years, 50% male) who provided valid responses. Those with an IQCODE-J average score of 3.3 or higher were classified as the cognitive decline group, and those below the threshold were classified as the non-cognitive decline group. Univariate analysis showed that hypertension was associated with cognitive decline as a modifiable factor. In a multivariate logistic regression analysis adjusted for age, hypertension, and education history, only age remained as an associated factor for cognitive decline group. As a result, we were unable to prove that baseline higher SVD burden (total SVD score 2 or higher) contributes to future cognitive decline, as hypothesized.

Academic Significance and Societal Importance of the Research Achievements

今回は残念ながら脳MRI上の脳小血管病負債過多が将来の認知症発症に関与することを証明できなかった。本研究のリミテーションとして、当初予定していた認知症移行候補者への直接面談がCOVID-19パンデミックにより実現できなかった点があげられる。今回の結果が真実なのか否かは本領域の今後の研究の積み重ねを待つしかないが、単変量解析で得られた高血圧と認知機能低下に関しては啓蒙の余地があるかもしれない。また違うMRIパラメータを加えた(例えば脳萎縮率など)研究の必要性も反省としてあげられた。

Report

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

    (8 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Associations for progression of cerebral small vessel disease burden in healthy adults: the Kashima scan study2023

    • Author(s)
      Ide Toshihiro、Yakushiji Yusuke、Suzuyama Kohei、Nishihara Masashi、Eriguchi Makoto、Ogata Atsushi、Matsumoto Akiko、Hara Megumi、Hara Hideo
    • Journal Title

      Hypertension Research

      Volume: 47 Pages: 302-310

    • DOI

      10.1038/s41440-023-01419-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hypertension, cerebral Amyloid, aGe Associated Known neuroimaging markers of cerebral small vessel disease Undertaken with stroke REgistry (HAGAKURE) prospective cohort study: Baseline characteristics and association of cerebral small vessel disease with prognosis in an ischemic stroke cohort2023

    • Author(s)
      Ikeda Shuhei、Yakushiji Yusuke、Tanaka Jun、et al.
    • Journal Title

      Frontiers in Aging Neuroscience

      Volume: 15 Pages: 01-09

    • DOI

      10.3389/fnagi.2023.1117851

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脳小血管病 -その負債の臨床的閾値はどこか?-2024

    • Author(s)
      藥師寺祐介
    • Organizer
      日本神経学会 2023 年度近畿地区生涯教育講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Type-1 cerebral small vessel disease It's time to move on!2023

    • Author(s)
      Yusuke Yakushiji
    • Organizer
      第64回日本神経学会学術大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 脳卒中ハイリスク患者の選別とその降圧管理 -脳MRIの有効活用-2023

    • Author(s)
      藥師寺祐介
    • Organizer
      第45回日本高血圧学会総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ASSOCIATIONS FOR PROGRESSION OF CEREBRAL SMALL VESSEL BURDEN IN HEALTHY ADULTS: THE KASHIMA SCAN STUDY2022

    • Author(s)
      Toshihiro Ide, Yusuke Yakushiji, Kohei Suzuyama, et al.
    • Organizer
      European Stroke Organization Conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Associations for Progression of Cerebral Small-vessel Disease Burden in Healthy Adults: Seven-year follow-up study of the Kashima Scan Study2022

    • Author(s)
      Toshihiro Ide, Yusuke Yakushiji, Kohei Suzuyama, et al.
    • Organizer
      The 10th Korea-Japan Joint Stroke Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Informant questionnaire on cognitive decline in the elderly (IQCODE) 日本語版の妥当性2021

    • Author(s)
      溝口惠, 藥師寺祐介 , 江里口誠, 田中淳 , 鈴山耕平, 井手俊宏 , 吉川正章, 星野有紀, 飯田紘太郎 , 平原凛太郎, 津村圭亮, 原照子 , 坂本麻衣子, 堀川悦夫, 原英夫
    • Organizer
      日本脳ドック学会
    • Related Report
      2021 Research-status Report

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

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