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Search for predictive markers of diabetic kidney disease

Research Project

Project/Area Number 20K16539
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Koezuka Ryo  国立研究開発法人国立循環器病研究センター, 病院, 医師 (90791864)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords糖尿病性腎臓病 / 心障害マーカー / 心エコー指標 / 血糖変動 / HDL機能 / 尿エクソソーム解析 / 心エコー / 持続血糖変動 / 心腎連関
Outline of Research at the Start

本研究は、当院通院中の2型糖尿病患者を対象に、HbA1c、インスリン分泌能など糖尿病関連の項目や尿検査、測定精度が高いDEXCOM G6を使用した持続血糖変動、HDLの質的評価(引抜能、抗酸化能、抗炎症作用)、尿エクソソーム解析、心エコー(左室拡張能や心肥大)、血管内皮機能(エンドパッド、CD34+細胞)、心障害マーカー(高感度トロポニンT)、酸化ストレス(尿中8 OHdG)、炎症マーカー(IL-6)などを測定し、糖尿病性腎臓病(DKD)の発症・進展に関わる危険因子を明らかにすることを目的とした。DKDとHDL機能低下、血糖変動、尿エクソソーム解析に関する報告はほぼなく、先進的研究である。

Outline of Final Research Achievements

The aim of this study was to identify risk factors associated with the development and progression of diabetic kidney disease(DKD) in patients with type 2 diabetes and to explore predictive markers of DKD. We have previously reported the correlation between low ABI and eGFR, and between mildly elevated plasma BNP and worsening renal function. Other centers have reported that NT-ProBNP correlates with renal impairment and cardiovascular events. In the present study, our study revealed that high plasma BNP levels were associated with renal events (Cre1.5times increase), and that echocardiographic left atrial diameter enlargement (LAD>37) was associated with an increased risk of renal events. A study using the same database was also able to show that the presence of retinopathy and nephropathy was associated with a higher risk of developing HFpEF.

Academic Significance and Societal Importance of the Research Achievements

今回の後ろ向き観察研究にて、血漿BNP高値や心エコーでLAD高値がDKDの発症・進展に関係することが明らかとなった。
今後、現在行っている前向き観察研究によりこれらの関係性をより明確とし、血糖変動やHDL引き抜き能、尿エクソソームとeGFR変化率との相関を明らかとするため研究を進めている。
COVID-19の流行により新規コホートの症例登録は現在目標登録数の92%と遅れているが、血糖変動、HDL引き抜き能、尿エクソソームとeGFR変化率、尿糸球体障害マーカー、尿細管障害マーカーとの関係性を調査した臨床研究はまだ少なく、学術的・社会的意義を有すると考える。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (6 results)

All 2024 2023

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (4 results)

  • [Journal Article] Diabetic microvascular complications predicts non‐heart failure with reduced ejection fraction in type 2 diabetes2023

    • Author(s)
      Tochiya Mayu、Makino Hisashi、Tamanaha Tamiko、Omura‐Ohata Yoko、Matsubara Masaki、Koezuka Ryo、Noguchi Michio、Tomita Tsutomu、Asaumi Yasuhide、Miyamoto Yoshihiro、Yasuda Satoshi、Hosoda Kiminori
    • Journal Title

      ESC Heart Failure

      Volume: 10 Issue: 2 Pages: 1158-1169

    • DOI

      10.1002/ehf2.14280

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The effect of continuous glucose monitoring-guided glycemic control on progression of coronary atherosclerosis in type 2 diabetic patients with coronary artery disease: The OPTIMAL randomized clinical trial.2023

    • Author(s)
      Yu Kataoka, , Ryo Koezuka, et al.
    • Journal Title

      J Diabetes Complications .

      Volume: oct;37(10) Issue: 10 Pages: 108592-108592

    • DOI

      10.1016/j.jdiacomp.2023.108592

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 血糖変動の評価指標と認知機能の関連解明のための前向き観察研究2024

    • Author(s)
      肥塚諒、竹川達也、橡谷真由、大畑洋子、 玉那覇民子、野口倫生、槇野久士
    • Organizer
      2024年 日本糖尿病学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Progression of Diabetic Microvascular Complications Predicts Hospitalization for Non-HFrEF in Type 2 Diabetes Patients2023

    • Author(s)
      橡谷真由、槇野久士、玉那覇民子、大畑洋子、肥塚諒、野口倫生、冨田努、宮本恵宏、細田公則
    • Organizer
      2023年 日本循環器学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Association between HDL Function and Atherosclerosis in Patients with Type 2 Diabetes2023

    • Author(s)
      槇野久士、小倉正恒、松尾美紀、肥塚諒、橡谷真由、大畑洋子、玉那覇民子、野口倫生、斯波真理子、細田公則
    • Organizer
      2023年 日本循環器学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 2 型糖尿病患者におけるHDL のcholesterol efflux capacity と動脈硬化の関連2023

    • Author(s)
      槇野久士、小倉正恒、肥塚諒、松原正樹、橡谷真由、大畑洋子、玉那覇民子、野口倫生、斯波真理子、細田公則
    • Organizer
      2023年 日本動脈硬化学会総会
    • Related Report
      2023 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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