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Elucidation of the mechanism of effectiveness of exercise therapy for acute kidney injury and secondary chronic kidney disease in diabetes

Research Project

Project/Area Number 17K01462
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Rehabilitation science/Welfare engineering
Research InstitutionTohoku Medical and Pharmaceutical University

Principal Investigator

Muroya Yoshikazu  東北医科薬科大学, 医学部, 准教授 (70754943)

Co-Investigator(Kenkyū-buntansha) 伊藤 修  東北医科薬科大学, 医学部, 教授 (00361072)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords急性腎障害 / 慢性腎臓病 / 糖尿腎症 / 糖尿病 / 虚血再灌流障害 / 腎内血流 / 糖尿病腎症 / 炎症 / 腎内炎症 / 運動療法 / 腎臓リハビリテーション
Outline of Final Research Achievements

The mechanism of hypersensitivity of diabetic nephropathy to acute kidney injury (AKI) is unknown. Furthermore, the mechanism of the exacerbation of chronic kidney disease (CKD) after AKI is not clear. In this study, ischemic AKI and secondary CKD were investigated using normal rats (SD) and spontaneously diabetic rats (T2DN). A secondary decrease in renal medulla blood flow (MBF) was observed in T2DN, and it was found that the degree of inflammation in the kidney was correlated with the degree of injury. In a chronic experiment, T2DN temporarily improved the Cr level after AKI, similar to SD, but the Cr level increased again and hypertension became more severe. In the examination of renal angiotensin metabolism, the AngII value increased about 5 times compared to the standard value.

Academic Significance and Societal Importance of the Research Achievements

急性腎障害(AKI)の致死率は非常に高く、近年その発生数と死亡数が増加している。しかしAKIの障害進展メカニズムは解明されておらず、現在までにAKIに対する確立した治療法はない。したがって、AKI発症後の透析導入数と死亡数の上昇が近年深刻化している。また、ヒトおよび実験動物において糖尿病によりAKIへの感受性が高まることが確認されているが、その機序は未だ明らかになっていない。さらに、AKI発症後にCKDが進行し末期腎不全になることも知られているが、その進展機序も不明である。以上のことより、AKIおよびCKDへの障害進展機序解明ならびに予防法の確立は国民の健康と財産を守るうえで非常に重要である。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] University of Mississippi Medical Center(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Mississippi Medical Center(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Exercise training delays renal disorders with decreasing oxidative stress and increasing production of 20-hydroxyeicosatetraenoic acid in Dahl salt-sensitive rats2020

    • Author(s)
      Ogawa Yoshiko、Takahashi Junta、Sakuyama Akihiro、Xu Lusi、Miura Takahiro、Muroya Yoshikazu、Ito Daisuke、Kohzuki Masahiro、Ito Osamu
    • Journal Title

      Journal of Hypertension

      Volume: 38 Issue: 7 Pages: 1-1

    • DOI

      10.1097/hjh.0000000000002409

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Mutation in γ-Adducin Impairs Autoregulation of Renal Blood Flow and Promotes the Development of Kidney Disease2020

    • Author(s)
      Fan Fan、Geurts Aron M.、Pabbidi Mallikarjuna R.、Ge Ying、Zhang Chao、Wang Shaoxun、Liu Yedan、Gao Wenjun、Guo Ya、Li Longyang、He Xiaochen、Lv Wenshan、Muroya Yoshikazu、Hirata Takashi、Prokop Jeremy、Booz George W.、Jacob Howard J.、Roman Richard J.
    • Journal Title

      Journal of the American Society of Nephrology

      Volume: 31 Issue: 4 Pages: 687-700

    • DOI

      10.1681/asn.2019080784

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enhanced renal ischemia-reperfusion injury in aging and diabetes2018

    • Author(s)
      Muroya Yoshikazu、He Xiaochen、Fan Letao、Wang Shaoxun、Xu Rui、Fan Fan、Roman Richard J.
    • Journal Title

      American Journal of Physiology-Renal Physiology

      Volume: 315 Issue: 6 Pages: F1843-F1854

    • DOI

      10.1152/ajprenal.00184.2018

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 急性腎障害における 20-ヒドロキシエイコサテトラエン酸の腎保護作用2019

    • Author(s)
      室谷嘉,一中村はな,衣笠哲史,谷 淳一,森 建文.
    • Organizer
      日本内分泌学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 自然発症2型糖尿病ラットにおける急性腎障害による炎症進展の検討2019

    • Author(s)
      室谷嘉一,太田耕平,中山晋吾,廣瀬卓男,衣笠哲史,森建文.
    • Organizer
      日本腎臓学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 自然発症2型糖尿病腎症ラットを用いた急性腎障害後慢性腎臓病発症メカニズムの検討2018

    • Author(s)
      室谷嘉一、矢花郁子、佐藤真一、中村はな、衣笠哲史、伊藤修、森建文
    • Organizer
      日本腎臓学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 糖尿病腎症における虚血性急性腎障害の感受性の検討2018

    • Author(s)
      室谷嘉一 、伊藤修
    • Organizer
      日本リハビリテーション学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Renal Ischemia-Reperfusion Injury in Aging and Diabetes2018

    • Author(s)
      Yoshikazu Muroya, Xiachen He, Fan Fan, Takefumi Mori, Osamu Ito, and Richard J. Roman
    • Organizer
      American Heart Association Council on Hypertension
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 自然発症2型糖尿病ラットにおける腎内炎症の特徴2018

    • Author(s)
      室谷嘉一、伊藤修、森建文
    • Organizer
      日本腎臓リハビリテーション学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 急性腎障害に対する包括的腎臓リハビリテーションの検討~急性腎障害後慢性腎臓病発症ラットモデルの作成~2018

    • Author(s)
      室谷嘉一、三浦裕、高橋麻子、内海由也、森建文、伊藤修
    • Organizer
      日本腎臓リハビリテーション学会学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] Diabetic Kidney is more Susceptible to Ischemia-Reperfusion Injury2017

    • Author(s)
      室谷嘉一、Richard J Roman、矢花郁子、衣笠哲史、森 建文、伊藤 修
    • Organizer
      腎臓学会学術総会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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