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Arginine and Fluoride Combination Inhibits Pathogenicity of Human Dental Biofilms

Research Project

Project/Area Number 20K18504
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57030:Conservative dentistry-related
Research InstitutionOsaka University

Principal Investigator

Okamoto (Kuriki) Nanako  大阪大学, 歯学部附属病院, 招へい教員 (60781432)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsデンタルバイオフィルム / 次世代シーケンサー / 制御 / アルギニン / フッ化物
Outline of Research at the Start

オーラルバイオフィルムはう蝕や歯周病に関与しており,その制御・抑制法を解明することは,口腔及び全身の健康を維持するために極めて重要である.そこで本研究では,申請者らが開発したin situバイオフィルムモデルを用いて,アルギニンおよびフッ化物のデンタルバイオフィルムへの効果を多面的に評価し,その相乗効果の判定を行う.また,そのメカニズムを解明することで,新規抗バイオフィルム製剤の創出が期待でき,これは口腔疾病の予防および治療,さらには全身的健康の増進につながると考えている.

Outline of Final Research Achievements

Oral biofilms are involved in dental caries and periodontal disease, and their effects on the whole body have also been reported. Arginine, a component of saliva, is attracting attention as a prebiotic to control oral biofilms. Since fluoride has been shown to be effective in preventing dental caries, we considered it necessary to investigate the effect of arginine and fluoride on the bacterial flora when they are used in combination.
Using an in situ biofilm model developed by the applicants in this study, we performed a quantitative and comprehensive search for the combined effects of arginine and fluoride by metagenomic analysis, and found that arginine and fluoride only changed the oral microflora without affecting the number of viable oral bacteria by increasing NH4+ in the oral cavity, suggesting the synergintic effect of arginine and fluoide.

Academic Significance and Societal Importance of the Research Achievements

本研究では,デンタルバイオフィルムの制御・抑制法の確立を目指し,申請者らが新規開発したin situバイオフィルムモデルを用いて,次世代シーケンサーを用いたメタゲノム解析により,デンタルバイオフィルムへのアルギニンとフッ化物の効果を定量的・網羅的に検索し,病原性抑制への相乗効果を科学的に検証することを目的としている.これにより,新たなデンタルバイオフィルム制御の創出が期待でき,これは口腔疾病の予防および治療に有効であるだけでなく,さらにはヒトの全身的健康の増進に繋がると自負している.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 7 results)

  • [Journal Article] An extensive description of the microbiological effects of silver diamine fluoride on dental biofilms using an oral in situ model2022

    • Author(s)
      Klanliang K, Asahi Y, Maezono H, Sotozono M, Kuriki N, Machi H, Ebisu S, Hayashi M.
    • Journal Title

      Sci Rep .

      Volume: 12 Issue: 1 Pages: 7435-7435

    • DOI

      10.1038/s41598-022-11477-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biological Evaluation of the Effect of Root Canal Sealers Using a Rat Model.2022

    • Author(s)
      Okamoto M, Matsumoto S, Moriyama K, Huang H, Watanabe M, Miura J. Sugiyama K, Hirose Y, Manabu M, Kuriki N, Leprince JG, Takahashi Y, Kawabata S, Hayashi M.
    • Journal Title

      Pharmaceutics

      Volume: 14 Issue: 10 Pages: 2038-2038

    • DOI

      10.3390/pharmaceutics14102038

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Oehler 3型陥入歯の上顎左側側切歯に感染根管治療を行った1例2022

    • Author(s)
      廣瀬 奈々子, 岡本 基岐, 木ノ本 喜史, 栗木 菜々子, 森山 輝一, 林 美加子
    • Journal Title

      日本歯科保存学雑誌

      Volume: 65 Pages: 174-183

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] 歯根形態異常により生じた歯内-歯周疾患の1例.2021

    • Author(s)
      岡本 基岐, 木ノ本 喜史, 栗木 菜々子, 沢田 啓吾, 高橋 雄介, 村上 伸也, 林 美加子.
    • Journal Title

      日本歯科保存学雑誌

      Volume: 64 Pages: 171-180

    • NAID

      130008032150

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Partial Pulpotomy to Successfully Treat a Caries-Induced Pulpal Micro-Abscess: A Case Report2021

    • Author(s)
      Okamoto M, Duncan HF, Takahashi Y, Kuriki N, Matsumoto S, Hayashi M
    • Journal Title

      Frontier in Dental Medicine

      Volume: 2 Pages: 678632-678632

    • DOI

      10.3389/fdmed.2021.678632

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of sleep on the microbiome of oral biofilms2021

    • Author(s)
      Sotozono Maki、Kuriki Nanako、Asahi Yoko、Noiri Yuichiro、Hayashi Mikako、Motooka Daisuke、Nakamura Shota、Yamaguchi Mikiyo、Iida Tetsuya、Ebisu Shigeyuki
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 12 Pages: e0259850-e0259850

    • DOI

      10.1371/journal.pone.0259850

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Next-Generation Sequencing for Determining the Effect of Arginine on Human Dental Biofilms Using an In Situ Model2021

    • Author(s)
      Kuriki N, Asahi Y, Sotozono M, Machi H, Noiri Y, Hayashi M, Ebisu S.
    • Journal Title

      Pharmacy (Basel).

      Volume: 9(1) Issue: 1 Pages: 18-18

    • DOI

      10.3390/pharmacy9010018

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impacts of sleep on the characteristics of dental biofilm.2021

    • Author(s)
      Sotozono M, Kuriki N, Asahi Y, Noiri Y, Hayashi M, Motooka D, Nakamura S, Machi H, Iida T, Ebisu S.
    • Journal Title

      Sci Rep

      Volume: 11 Issue: 1 Pages: 138-138

    • DOI

      10.1038/s41598-020-80541-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 睡眠が口腔バイオフィルムに及ぼす影響2020

    • Author(s)
      外園 真規, 栗木 菜々子, 朝日 陽子, 町 博之, 林 美加子, 野杁 由一郎, 恵比須 繁之
    • Journal Title

      BACTERIAL ADHERENCE & BIOFILM

      Volume: 33 Pages: 27-31

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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