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Brain microstructural alterations caused by metabolic dysfunction in older adults with type 2 diabetes.

Research Project

Project/Area Number 21K17675
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionNational Center for Geriatrics and Gerontology

Principal Investigator

SUGIMOTO Taiki  国立研究開発法人国立長寿医療研究センター, 研究所 認知症先進医療開発センター, 外来研究員 (70760338)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords高齢者糖尿病 / 持続血糖モニタリング / 認知機能低下 / 認知症 / 脳小血管病 / ラクナ梗塞 / 血管周囲腔拡大 / 拡散尖度画像 / 脳微細構造 / 認知機能
Outline of Research at the Start

本研究は、高齢者糖尿病を対象とした24か月間の前向き観察研究によって、持続血糖モニタリングを用いて評価した血糖異常が、拡散尖度画像 (Diffusion Kurtosis Imaging: DKI) を用いて評価した脳微細構造、認知機能に及ぼす影響を明らかにする。加えて、血糖異常に関連する生活習慣要因を明らかにすることで、高齢者糖尿病に合併する認知症を予防するための介入手段開発の基礎的データを得る。

Outline of Final Research Achievements

The aim of this 2-year longitudinal study is to examine the association of continuous glucose monitoring (CGM)-derived metrics with cognitive decline and brain alterations among older adults with type 2 diabetes. In this study, percentages of time in range (TIR, 70-180 mg/dL), time above range (TAR, >180 mg/dL), and time below range (TBR, <70 mg/dL) during monitoring were calculated. The study showed that hyperglycemia metrics and TIR were significantly associated with cognitive decline and cerebral small vessel disease, particularly lacunes and enlarged perivascular spaces.

Academic Significance and Societal Importance of the Research Achievements

糖尿病は認知機能低下のリスクが高いことが知られているが、そのメカニズムは明らかにされていない。本研究により、持続的な高血糖が認知機能低下や脳小血管病、特にラクナ梗塞や拡大した血管周囲腔と関連することが明らかになった。本成果は、糖尿病における認知機能低下を予防するための介入手段の開発に向けた基礎的なデータであり、また高齢者糖尿病診療ガイドラインや認知症疾患診療ガイドラインに貢献する成果である。

Report

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

    (15 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (7 results) (of which Invited: 2 results)

  • [Journal Article] Impact of Type 2 Diabetes and Glycated Hemoglobin Levels Within the Recommended Target Range on Mortality in Older Adults With Cognitive Impairment Receiving Care at a Memory Clinic: NCGG-STORIES2024

    • Author(s)
      Sugimoto Taiki、Sakurai Takashi、Uchida Kazuaki、Kuroda Yujiro、Tokuda Haruhiko、Omura Takuya、Noguchi Taiji、Komatsu Ayane、Nakagawa Takeshi、Fujita Kosuke、Matsumoto Nanae、Ono Rei、Crane Paul K.、Saito Tami
    • Journal Title

      Diabetes Care

      Volume: 47 Issue: 5 Pages: 864-872

    • DOI

      10.2337/dc23-2324

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cross-sectional association of continuous glucose monitoring-derived metrics with cerebral small vessel disease in older adults with type 2 diabetes2024

    • Author(s)
      Sugimoto Taiki、Saji Naoki、Takuya Omura、Tokuda Haruhiko、Miura Hisayuki、Kawashima Shuji、Ando Takafumi、Nakamura Akinori、Uchida Kazuaki、Matsumoto Nanae、Fugjita Kosuke、Kuroda Yujiro、Crane Paul、Sakurai Takashi
    • Journal Title

      Diabetes, Obesity and Metabolism

      Volume: - Issue: 8 Pages: 3318-3327

    • DOI

      10.1111/dom.15659

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Longitudinal association of continuous glucose monitoring‐derived metrics with cognitive decline in older adults with type 2 diabetes: A 1‐year prospective observational study2023

    • Author(s)
      Sugimoto Taiki, Tokuda Haruhiko, Miura Hisayuki, Kawashima Shuji, Omura Takuya, Ando Takafumi, Kuroda Yujiro, Matsumoto Nanae, Fujita Kosuke, Uchida Kazuaki, Kishino Yoshinobu, Sakurai Takashi
    • Journal Title

      Diabetes, Obesity and Metabolism

      Volume: 25 Issue: 12 Pages: 3831-3836

    • DOI

      10.1111/dom.15275

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cross‐sectional association of metrics derived from continuous glucose monitoring with cognitive performance in older adults with type 2 diabetes2022

    • Author(s)
      Sugimoto Taiki、Tokuda Haruhiko、Miura Hisayuki、Kawashima Shuji、Ando Takafumi、Kuroda Yujiro、Matsumoto Nanae、Fujita Kosuke、Uchida Kazuaki、Kishino Yoshinobu、Sakurai Takashi
    • Journal Title

      Diabetes, Obesity and Metabolism

      Volume: 25 Issue: 1 Pages: 222-228

    • DOI

      10.1111/dom.14866

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Time trends (2012-2020) in glycated hemoglobin and adherence to the glycemic targets recommended for elderly patients by the Japan Diabetes Society/Japan Geriatrics Society Joint Committee among memory clinic patients with diabetes mellitus2022

    • Author(s)
      Sugimoto Taiki、Noma Hisashi、Kuroda Yujiro、Matsumoto Nanae、Uchida Kazuaki、Kishino Yoshinobu、Saji Naoki、Niida Shumpei、Sakurai Takashi
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 13 Issue: 12 Pages: 2038-2046

    • DOI

      10.1111/jdi.13897

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cross-Sectional Associations of Sarcopenia and Its Components with Neuropsychological Performance among Memory Clinic Patients with Mild Cognitive Impairment and Alzheimer’s Disease2022

    • Author(s)
      Sugimoto T.、Kuroda Y.、Matsumoto N.、Uchida K.、Kishino Y.、Saji N.、Niida S.、Sakurai T.
    • Journal Title

      Journal of Frailty & Aging

      Volume: 11 Issue: 2 Pages: 182-189

    • DOI

      10.14283/jfa.2022.3

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An update on cognitive frailty: Its definition, impact, associated factors and underlying mechanisms, and interventions2021

    • Author(s)
      Sugimoto Taiki、Arai Hidenori、Sakurai Takashi
    • Journal Title

      Geriatrics & Gerontology International

      Volume: 22 Issue: 2 Pages: 99-109

    • DOI

      10.1111/ggi.14322

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Multi-Domain Intervention Trial in Older Adults With Diabetes Mellitus for Prevention of Dementia in Japan: Study Protocol for a Multi-Center, Randomized, 18-Month Controlled Trial2021

    • Author(s)
      Sugimoto T, Araki A, Fujita H, Honda K, Inagaki N, Ishida T, Kato J, Kishi M, Kobayashi K, Kouyama K, Noma H, Ohishi M, Satoh-Asahara N, Shimada H, Sugimoto K, Suzuki S, Takeya Y, Tamura Y, Tokuda H, Umegaki H, Watada H, Yamada Y, Sakurai T
    • Journal Title

      Front Aging Neurosci

      Volume: 13

    • DOI

      10.3389/fnagi.2021.680341

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 持続血糖モニタリングによって評価した血糖指標と認知機能低下との関連:1年間の前向き観察研究2023

    • Author(s)
      杉本大貴,徳田治彦,三浦久幸,川嶋修司,安藤貴史,黒田佑次郎,松本奈々恵,藤田康介, 内田一彰, 櫻井 孝
    • Organizer
      第65回日本老年医学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高齢者2型糖尿病における持続血糖モニタリングによって評価した血糖指標と脳小血管病との関連2023

    • Author(s)
      杉本大貴, 佐治直樹, 中村昭範, 徳田治彦, 三浦久幸, 川嶋修司, 安藤貴史, 黒田佑次郎, 松本奈々恵, 藤田康介, 内田一彰, 岸野義信, 櫻井孝
    • Organizer
      第66回日本糖尿病学会年次学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 持続血糖モニタリングによって評価した血糖指標と認知機能との関連2022

    • Author(s)
      杉本 大貴, 徳田 治彦, 三浦 久幸, 川嶋 修司, 安藤 貴史, 黒田 佑次郎, 松本 奈々恵, 内田 一彰, 岸野 義信, 櫻井 孝
    • Organizer
      第64回日本老年医学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 持続血糖モニタリングによる血糖コントロール指標と認知機能および身体機能との関連2022

    • Author(s)
      杉本大貴, 徳田治彦, 三浦久幸, 川嶋修司, 安藤貴史, 黒田佑次郎, 松本奈々恵, 内田一彰, 岸野義信, 櫻井孝
    • Organizer
      第41回日本認知症学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 糖尿病を有するもの忘れ外来通院患者における血糖管理状況の年次推移2022

    • Author(s)
      杉本 大貴, 野間 久史, 黒田 佑次郎, 松本 奈々恵, 内田 一彰, 岸野 義信, 佐治 直樹, 新飯田 俊平, 櫻井 孝.
    • Organizer
      第65回日本糖尿病学会年次学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 糖尿病における認知機能障害の非薬物的な予防・治療法2021

    • Author(s)
      杉本大貴、櫻井孝
    • Organizer
      第63回日本老年医学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 高齢者糖尿病における多因子介入の重要性2021

    • Author(s)
      杉本大貴、櫻井孝
    • Organizer
      第64回日本糖尿病学会年次学術集会
    • Related Report
      2021 Research-status Report
    • Invited

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

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