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Development of novel therapeutic method for diabetic nephropathy by using eicosapentaenoic acid

Research Project

Project/Area Number 17K18257
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental physiology(including physical medicine and nutritional physiology)
Eating habits
Research InstitutionKio University (2019)
Kindai University (2017-2018)

Principal Investigator

Yasuzawa Toshinori  畿央大学, 健康科学部, 助手 (80734425)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords糖尿病性腎症 / 血管内皮細胞 / エイコサペンタエン酸 / 内皮細胞間葉移行 / 脂肪細胞 / 栄養学 / 内皮間葉転換 / 肥満 / 生理学 / 腎臓内科学 / 病態生理学 / 糖尿病
Outline of Final Research Achievements

Endothelial to mesenchymal transition (EndMT) is considered as one of the causes of renal fibrosis in diabetic nephropathy. In this study, we investigated the effect of eicosapentaenoic acid (EPA) on improving diabetic nephropathy. Present study showed that EPA suppressed renal fibrosis in diabetic mice and ameliorated renal function. Moreover, it was demonstrated that the substance secreted by the hypertrophy of adipocytes caused EndMT of vascular endothelial cells. Furthermore, it was clarified that EPA inhibited EndMT induced by adipocyte hypertrophy. Thus, EPA may be effective as food ingredient controlling progression of renal fibrosis in diabetic nephropathy.

Academic Significance and Societal Importance of the Research Achievements

糖尿病性腎症患者の増加は非常に問題となっている。また、透析導入患者の原疾患としても糖尿病性腎症は増加しており、深刻な医療経済問題となっている。糖尿病性腎症の治療はRAS阻害薬を中心とした厳密な血圧管理や血糖管理、低蛋白質食、減塩食などである。実際の治療では糖尿病性腎症が進展するにつれ投薬量が多くなり、患者の服薬コンプライアンスに治療効果が左右される。本研究では、食品由来成分であるEPAが糖尿病性腎症の改善に有効である可能性を示し、糖尿病性腎症の腎線維化におけるEndMT に対するEPAの抑制効果も明らかにした。これは薬剤に頼らない糖尿病性腎症の新たな治療方法確立の基盤となり得る。

Report

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

    (20 results)

All 2020 2019 2018 2017 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (15 results) (of which Int'l Joint Research: 4 results) Remarks (1 results)

  • [Journal Article] Linagliptin affects IRS1/Akt signaling and prevents high glucose-induced apoptosis in podocytes2020

    • Author(s)
      Mima Akira、Yasuzawa Toshinori、Nakamura Tomomi、Ueshima Shigeru
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1

    • DOI

      10.1038/s41598-020-62579-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antithrombotic Effect of Oral Administration of Mozuku (<i>Cladosiphon okamuranus</i>, Brown Seaweed) Extract in Rat2019

    • Author(s)
      Yasuzawa T, Mima A, Ueshima S
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 65 Issue: 2 Pages: 171-176

    • DOI

      10.3177/jnsv.65.171

    • NAID

      130007639826

    • ISSN
      0301-4800, 1881-7742
    • Year and Date
      2019-04-30
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 脂肪細胞の内皮間葉移行(EndMT)誘導作用とエイコサペンタエン酸(EPA)の効果2019

    • Author(s)
      安澤 俊紀, 中村 友美, 黄 禾甯, 美馬 晶, 上嶋 繁
    • Journal Title

      日本病態生理学会雑誌 = Japanese journal of pathophysiology

      Volume: 28 Pages: 17-20

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Obesity-associated glomerular inflammation increases albuminuria without renal histological changes2018

    • Author(s)
      Mima Akira、Yasuzawa Toshinori、King George L.、Ueshima Shigeru
    • Journal Title

      FEBS open bio

      Volume: 8 Issue: 4 Pages: 664-670

    • DOI

      10.1002/2211-5463.12400

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Eicosapentaenoic acid suppresses Endothelial-to-Mesenchymal Transition of vascular endothelial cells induced by substances secreted by the progress of adipocyte hypertrophy2020

    • Author(s)
      Tomomi Nakamura, Toshinori Yasuzawa, Akira Mima, Shigeru Ueshima
    • Organizer
      第97回日本生理学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 脂肪細胞の内皮間葉移行(EndMT)誘導作用とエイコサペンタエン酸(EPA)の効果2019

    • Author(s)
      安澤 俊紀, 中村 友美, 美馬 晶, 上嶋 繁
    • Organizer
      第29回日本病態生理学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] がん細胞の転移に及ぼすコリアンダーの影響について2019

    • Author(s)
      中村 友美, 安澤 俊紀, 上嶋 繁
    • Organizer
      第19回日本抗加齢医学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 慢性肝疾患モデルを用いた初期肝線維化の病理学的解明2019

    • Author(s)
      忍海辺 結実, 豊田 啓士, 蒲 尚子, 松田 邦子, 安澤 俊紀, 佐藤 隆夫, 伊藤 龍生
    • Organizer
      第73回日本栄養・食糧学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Loss of GPx4 in vascular endothelial cells induces accumulation of lipid peroxide and cell death2019

    • Author(s)
      Toshinori Yasuzawa, Yoshie Sumikawa, Osamu Sakai, Shigeru Ueshima
    • Organizer
      9th Federation of the Asian and Oceanian Physiological Societies Congress (FAOPS2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 糖尿病マウスの腎機能に及ぼすエイコサペンタエン酸の影響2018

    • Author(s)
      安澤俊紀、美馬晶、上嶋繁
    • Organizer
      第18回抗加齢医学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] コリアンダーがマウス由来メラノーマ細胞(B16F10)の転移能に及ぼす影響2018

    • Author(s)
      中村友美、安澤俊紀、上嶋繁
    • Organizer
      第28回日本病態生理学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 肥満が糸球体の炎症とアルブミン尿に及ぼす影響について2018

    • Author(s)
      安澤俊紀、美馬晶、上嶋繁
    • Organizer
      第28回日本病態生理学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Glomerular inflammation induced by obesity results in albuminuria without histological changes2018

    • Author(s)
      Toshinori Yasuzawa, Akira Mima, Mayuko Akada, Osamu Matsuo, Shigeru Ueshima
    • Organizer
      the 8th International Congress of Pathophysiology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Eicosapentaenoic acid-mediated inhibition of endothelial-to-mesenchymal transition decreases mesangial expansion and albuminuria in diabetic kidney disease2018

    • Author(s)
      Akira Mima, Toshinori Yasuzawa, Shigeru Ueshima
    • Organizer
      American Society for Cell Biology/ European Molecular Biology Organization 2018 Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] がん細胞の浸潤に及ぼすパクチー抽出物の効果2018

    • Author(s)
      黄 禾甯、安澤 俊紀、上嶋 繁
    • Organizer
      第95回日本生理学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Obesity-associated glomerular inflammation increases albuminuria without renal histological changes2017

    • Author(s)
      Akira Mima, Toshinori Yasuzawa, George L King, Shigeru Ueshima
    • Organizer
      International Diabetes Federation 2017 Congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] グルタチオンペルオキシダーゼ(GPx4)の減少による血管内皮細胞の障害とそれを改善する物質の探索2017

    • Author(s)
      安澤 俊紀, 酒井 修, 住川 淑絵, 上嶋 繁
    • Organizer
      日本病態生理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 米抽出物の培養ヒト結腸がん細胞(Caco‐2)遊走能抑制効果2017

    • Author(s)
      安澤 俊紀、木戸口 こころ、住川 淑絵、上嶋 繁
    • Organizer
      日本栄養・食糧学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 米抽出物の新たな機能性の探索2017

    • Author(s)
      安澤 俊紀、木戸口 こころ、住川 淑絵、上嶋 繁
    • Organizer
      第17回日本抗加齢医学会総会
    • Related Report
      2017 Research-status Report
  • [Remarks] 近畿大学農学部食品栄養学科生体機能学研究室

    • URL

      http://www.nara.kindai.ac.jp/laboratory/seitaikinougaku/index.html

    • Related Report
      2018 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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