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Antioxidant Activity of Cat's claw Extract as Natural Herb and its Preventive Effects on Periodontal Disease

Research Project

Project/Area Number 16K11859
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Social dentistry
Research InstitutionThe University of Tokushima

Principal Investigator

MIKI Kaname  徳島大学, 大学院医歯薬学研究部(歯学域), 助教 (30243710)

Co-Investigator(Kenkyū-buntansha) 福井 誠  徳島大学, 大学院医歯薬学研究部(歯学域), 講師 (50325289)
伊藤 博夫  徳島大学, 大学院医歯薬学研究部(歯学域), 教授 (40213079)
Project Period (FY) 2016-10-21 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords天然ハーブ / キャッツクロー / 抗菌作用 / 抗炎症作用 / 抗酸化作用 / 酸化ストレス / 歯周病予防 / 歯学
Outline of Final Research Achievements

Cat's claw is usually taken as a decoction herb tea of the bark, and it has been used in traditional medicine to treat arthritis in Peru. This study aimed to examine whether Cat’s Claw inhibits periodontopathogenic bacterial growth, suppresses the production of inflammatory cytokines mRNA expression stimulated by P. gingivalis LPS and promotes wound healing, and depresses hydrogen peroxide-induced oxidative stress in human gingival fibroblast (HGF). Results indicated that Cat’s Claw extract has antibacterial activity against some periodontopathogenic bacteria, and has anti-inflammatory activity and antioxidant activity in HGF. Therefore, the use of Cat's Claw extract would be a useful application on the prevention of periodontal disease.

Academic Significance and Societal Importance of the Research Achievements

本研究で注目した天然ハーブ・キャッツクローは、関節リウマチの改善などに利用されている伝統ハーブで、多種多様な成分と作用があるのが特徴である。しかし歯周病の予防効果については、不明であった。そこでキャッツクロー抽出物について歯周病に対する有効性について基礎的研究として歯周病原菌への抗菌作用およびヒト歯肉由来の線維芽細胞培養系における抗酸化作用および抗炎症作用の効果を明らかにしたことは、キャッツクロー抽出物の歯周病への応用の可能性のみならず、歯周病と関連のある全身疾患の予防への応用にも大いに役立つことが考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] Utility of Natural Herbs -Focusing on Dental Field Use-2019

    • Author(s)
      Kaname.MIKI, Naofumi .TAMAKI and Hiro-o ITO
    • Journal Title

      Journal of Oral Health and Biosciences

      Volume: 32(1) Pages: 1-10

    • NAID

      130007672857

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 天然ハーブの有用性ー歯科領域を中心にー2018

    • Author(s)
      三木かなめ
    • Organizer
      四国歯学会第53回例会・第37回総会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 天然ハーブ・キャッツクロー抽出物の歯周病原菌に対する抗菌効果2018

    • Author(s)
      三木かなめ, 福井誠, 陳 舒, 玉木直文, 伊藤博夫
    • Organizer
      第29回近畿・中国・四国口腔衛生学会・総会
    • Related Report
      2018 Annual Research Report

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Published: 2016-10-24   Modified: 2020-03-30  

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