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Bioavailability and bioactivity of dietary polyphenols.

Research Project

Project/Area Number 26870506
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Food science
Eating habits
Research InstitutionUniversity of Hyogo

Principal Investigator

Ishisaka Akari  兵庫県立大学, 環境人間学部, 助教 (30724463)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsポリフェノール / フラボノイド / ケルセチン / 脱抱合 / 炎症 / グルクロニダーゼ / スルファターゼ / モノクローナル抗体
Outline of Final Research Achievements

Quercetin is the major polyphenol included in various fruits and vegetables. To understand the localization and target sites of quercetin underlying the bioactivity in vivo, we planned to develop monoclonal antibodies directed to quercetin aglycone and its degradation product. However, the developed antibodies scarcely recognized the haptens. These results suggested that the antibodies were difficult to available for immunochemical studies. On the other hands, we investigated the deconjugation mechanism of quercetin metabolites in healthy/inflammation animal models. This study suggested that the deconjugation of quercetin metabolites at sites of inflammation was contributed to the anti-inflammatory activity in vivo.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2015 Other

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

  • [Journal Article] Quercetin and related polyphenols: new insights and implications for their bioactivity and bioavailability.2015

    • Author(s)
      Kyuichi Kawabata, Rie Mukai, Akari Ishisaka
    • Journal Title

      Food & Function

      Volume: 印刷中 Issue: 5 Pages: 1399-1417

    • DOI

      10.1039/c4fo01178c

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Deconjugation of quercetin metabolites at sites of inflammation2015

    • Author(s)
      Ishisaka A, Kato Y, Kitamoto N, Terao J, Kawai Y.
    • Organizer
      7th International Conference on Polyphenol and Health
    • Place of Presentation
      Congress Center Tours, France.
    • Year and Date
      2015-10-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Possible deconjugation of quercetin metabolites in brain: anti-inflammatory effects of unconjugated quercetin2015

    • Author(s)
      Ishisaka A, Kato Y, Kawai Y, Terao J.
    • Organizer
      International Symposium on Dietary Antioxidants and Oxidative Stress in Health
    • Place of Presentation
      淡路夢舞台国際会議場
    • Year and Date
      2015-08-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks]

    • URL

      http://food-science6.webnode.jp/products/a/

    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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