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Development of a Dimethylarginine Dimethylarminohydrase Assay for a Functional Food Ingredients Screening

Research Project

Project/Area Number 17K18275
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Eating habits
Applied health science
Research InstitutionMukogawa Women's University

Principal Investigator

Yokoro Miyuki  武庫川女子大学, 生活環境学部, 助教 (80757188)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords非対称性ジメチルアルギニン / 一酸化窒素 / 血管内皮機能 / スクリーニング / 評価法 / ELISA / ジメチルアルギニンジメチルアミノヒドラーゼ / スクリーニング系 / DDAH-1 / 機能性食品成分 / プルダウンアッセイ / 免疫沈降 / 活性測定
Outline of Final Research Achievements

An excessive increase of asymmetric dimethylarginine (ADMA) causes endothelial dysfunction. In this study, we aimed to development an ADMA degrading activity screening for an exploratory of functional food ingredients. First, we tried to produce an biosensor to measure an ADMA degrading activity. Second, a protocol of ADMA-ELISA method, which we previously developed, was simplified and applied to ADMA degrading activity assay using cultured cells. In the future, we are going to explore functional food ingredients for degrading ADMA using improved ADMA-ELISA methods.

Academic Significance and Societal Importance of the Research Achievements

体内ADMA蓄積が心血管疾患のリスク因子として知られる。しかし、体内ADMA蓄積の予防に有効な物質はみつかっていない。その一因として、既存のDDAH活性測定法では多検体評価や生きた細胞での評価が難しいことがあげられる。本研究成果は、スクリーニング段階におけるこれらの問題点の解決に繋がるものである。今後、DDAH活性を高める食品成分を探索をすすめ、体内ADMA蓄積を予防、低減させる機能性食品成分を見つけたい。それは、非感染性疾患が蔓延する世界中の人々の健康増進に貢献するものであると期待される。

Report

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

    (3 results)

All 2018

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

  • [Journal Article] Urinary sodium-to-potassium ratio and serum asymmetric dimethylarginine levels in patients with type 2 diabetes.2018

    • Author(s)
      Yokoro M, Minami M, Okada S, Yano M, Otaki N, Ikeda H, Fukuo K.
    • Journal Title

      Hypertension Research

      Volume: 41(11) Issue: 11 Pages: 913-922

    • DOI

      10.1038/s41440-018-0098-1

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Urinary Sodium-to-Potassium ratio and Serum Asymmetric Dimethylarginine Levels in Patients with Type 2 Diabetes2018

    • Author(s)
      Miyuki Yokoro, Miki Minami, Sumire Okada, Megumu Yano, Naoto Otaki, Hiroki Ikeda, Keisuke Fukuo
    • Journal Title

      Hypertension Research

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 尿毒素物質である非対称性ジメチルアルギニン(ADMA)と尿中ナトリウム/カリウム比との関連2018

    • Author(s)
      横路三有紀、南美樹、岡田菫、矢野めぐむ、大滝直人,、池田弘毅、中山陽介、深水圭、福尾惠介
    • Organizer
      第2回Uremic Toxin研究会
    • Related Report
      2018 Research-status Report

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

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