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Development of new antibacterial oral care agent for the elderly: Attempt from basic experiment to clinical practical use

Research Project

Project/Area Number 21K10219
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57080:Social dentistry-related
Research InstitutionNihon University

Principal Investigator

TAMURA Muneaki  日本大学, 歯学部, 准教授 (30227293)

Co-Investigator(Kenkyū-buntansha) 泉福 英信  日本大学, 松戸歯学部, 教授 (20250186)
阿部 仁子  日本大学, 歯学部, 准教授 (70508671)
植田 耕一郎  日本大学, 歯学部, 教授 (80313518)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords口腔ケア / 歯周病 / 口腔と全身疾患 / 高齢者 / 予防
Outline of Research at the Start

本研究では天然成分やイオンなどのさまざまなサンプルから口腔微生物に対して発育や病原性を抑える効果を発揮する新たな成分を見出すとともに、その抗菌効果のメカニズムを明らかにする。次に、発見した成分のジェルを開発して動物や人の口腔に投与後、それぞれの口腔内微生物に及ぼす抗菌効果や動物と人への影響について確認する。
これらの結果から口腔内の病原菌が引き起こす疾患、およびこれらの関与が報告されている全身性疾患に対する新しい予防法を確立する。

Outline of Final Research Achievements

We developed an antimicrobial gel based on the natural ingredient catechin and found that it exhibited selective antimicrobial activity both in vitro and in clinical pilot studies. This time, we tested arylisothiocyanate and ionized water as new antimicrobial ingredients and confirmed that they had significant antimicrobial effects (inhibition of growth and virulence factors) against oral pathogens, indicating that oxidative stress is involved in the antimicrobial mechanism. Furthermore, a clinical pilot study using fluoride compounds was conducted, and it was confirmed that not only antimicrobial activity, but also plaque accumulation and inflammation were inhibited. Overall, these results would suggest that these new antibacterial components may contribute to health maintenance and QOL improvement by preventing diseases inside and outside the oral cavity of patients, especially among elderly.

Academic Significance and Societal Importance of the Research Achievements

口腔で発症する疾患は全身疾患や衰弱の引き金となる可能性が報告され、特に超高齢社会となった本国では喫緊の問題となっている。そのため口腔内の清掃が重要であり、その主となる歯磨きの補助として、口腔微生物のコントロールができる抗菌作用をもち長期間簡便な口腔ケア剤の開発が必須となる。本研究の新規口腔ケア剤の開発の実験結果は、国民の口腔内疾患である齲蝕や歯周病の予防のみならず、全身疾患の予防とQOLの向上、さらにはこれから重要な問題となってくる高齢者医療の削減に繋がる非常に有意義なものになると確信している。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 11 results,  Open Access: 6 results) Presentation (16 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (2 results)

  • [Journal Article] Possible roles of short-chain fatty acids produced by oral bacteria in the development of alveolar osteitis2024

    • Author(s)
      Asayama Takayuki、Takada Ayaka、Mikami Yoshikazu、Yamaguchi Hirofumi、Tamura Muneaki、Matsumoto Kunihito、Miyake Kiwa、Yonehara Yoshiyuki、Tsuda Hiromasa
    • Journal Title

      Journal of Oral Science

      Volume: 66 Issue: 2 Pages: 102-106

    • DOI

      10.2334/josnusd.23-0410

    • ISSN
      1343-4934, 1880-4926
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of surface pre-reacted glass ionomer filler eluate on lipase gene expression in <i>Candida albicans</i>: An <i>in vitro</i> study2023

    • Author(s)
      Tonprasong W, Inokishi M, Tamura M, Hatano K, Minakuchi S
    • Journal Title

      Dental Materials Journal

      Volume: 42 Issue: 1 Pages: 49-54

    • DOI

      10.4012/dmj.2022-122

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2023-01-25
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Association between Non-Alcoholic Steatohepatitis-Related Hepatocellular Carcinoma and Periodontopathic Bacteria: A Cross-Sectional Pilot Study2023

    • Author(s)
      Takuma Ryo、Morozumi Toshiya、Yamamoto Yuko、Kobayashi Takashi、Matsui Takaaki、Yoneda Masato、Kessoku Takaomi、Nogami Asako、Tamura Muneaki、Kamata Yohei、Sugihara Shuntaro、Nomura Yoshiaki、To Masahiro、Minabe Masato、Mitsudo Kenji、Nakajima Atsushi、Komaki Motohiro
    • Journal Title

      Applied Sciences

      Volume: 13 Issue: 6 Pages: 3893-3893

    • DOI

      10.3390/app13063893

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effectiveness of acid-electrolyzed functional water for mouth wash: an in vitro study2022

    • Author(s)
      Oikawa D, Nishio K, Tamura M, Fukasawa M, Yoshida T, Okada S, Ito T, Tsunoda M, Asano M, Iinuma T
    • Journal Title

      In vivo

      Volume: 36 Issue: 5 Pages: 2211-2217

    • DOI

      10.21873/invivo.12947

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Utillity of biphasic calcium phosphate cement as a seal for root-end filling2022

    • Author(s)
      Nakamura T, Hayashi M, M, Tamura M, Kaketani M, Ito T, Takamizawa T, Suzuki Y, Yasukawa T, Sugarawa A, Takeichi O
    • Journal Title

      Dental Materials J

      Volume: 42 Pages: 240-240

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Novel antimicrobial denture adhesive containing S-PRG filler2021

    • Author(s)
      HATANO Keita、INOKOSHI Masanao、TAMURA Muneaki、UO Motohiro、SHIMIZUBATA Makoto、TONPRASONG Watcharapong、WADA Takahiro、TAKAHASHI Rena、IMAI Kenichi、MINAKUCHI Shunsuke
    • Journal Title

      Dental Materials Journal

      Volume: 40 Issue: 6 Pages: 1365-1372

    • DOI

      10.4012/dmj.2020-443

    • NAID

      130008123596

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2021-11-25
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Porphyromonas gingivalis enhances pneumococcal adhesion to human alveolar epithelial cells by increasing expression of host platelet-activating factor receptor.2021

    • Author(s)
      Kamio N, Hayata M, Tamura M, Tanaka H, Imai K
    • Journal Title

      FEBS Lett

      Volume: in press Issue: 11 Pages: 1604-1612

    • DOI

      10.1002/1873-3468.14084

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] S-PRG Filler Eluate Induces Oxidative Stress in Oral Microorganism: Suppression of Growth and Pathogenicity, and Possible Clinical Application2021

    • Author(s)
      Kono Yu、Tamura Muneaki、Cueno Marni E.、Tonogi Morio、Imai Kenichi
    • Journal Title

      Antibiotics

      Volume: 10 Issue: 7 Pages: 816-816

    • DOI

      10.3390/antibiotics10070816

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of diglyceryl dicaprylate on Candida albicans growth and pathogenicity2021

    • Author(s)
      Koide Tomojiro、Tamura Muneaki
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 11 Pages: 2334-2342

    • DOI

      10.1093/bbb/zbab159

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of 4-META/MMA-TBB resin with added benzalkonium chloride or cetylpyridinium chloride as antimicrobial restorative materials for root caries2021

    • Author(s)
      Yamamoto Mao、Inokoshi Masanao、Tamura Muneaki、Shimizubata Makoto、Nozaki Kosuke、Takahashi Rena、Yoshihara Kumiko、Minakuchi Shunsuke
    • Journal Title

      Journal of the Mechanical Behavior of Biomedical Materials

      Volume: 124 Pages: 104838-104838

    • DOI

      10.1016/j.jmbbm.2021.104838

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tissue Conditioner Incorporating a Nano-Sized Surface Pre-Reacted Glass-Ionomer (S-PRG) Filler2021

    • Author(s)
      Tonprasong Watcharapong、Inokoshi Masanao、Tamura Muneaki、Uo Motohiro、Wada Takahiro、Takahashi Rena、Hatano Keita、Shimizubata Makoto、Minakuchi Shunsuke
    • Journal Title

      Materials

      Volume: 14 Issue: 21 Pages: 6648-6648

    • DOI

      10.3390/ma14216648

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Effects of surface pre-reacted glass ionomer (S-PRG) filler elute on Candida albicans ATCC18804 proteinase production2024

    • Author(s)
      Sunami A, Inokoshi M, Tamura M, Hatano K, Minakuchi S
    • Organizer
      The 8th CPS-JPS-KAP Congress 日中韓合同補綴学会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヨーグルト摂取が口腔内常在菌に交叉する唾液中IgAレベルに与える影響2023

    • Author(s)
      山本裕子, 猿田樹理, 坂口和歌子, 東雅啓, 清水智子, 両角俊哉, 田村宗明, 高橋徹, 根岸紘生, 土橋英恵, 市川愛弓, 下仲敦, 横尾岳大, 唐舒宜, 牧野聖也, 狩野宏, 北條研一, 槻木恵一
    • Organizer
      第66回春季日本歯周病学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] スフェロイド培養を用いた口腔扁平上皮癌-歯周病原性細菌共培養系の樹立2023

    • Author(s)
      中島由梨佳,岡﨑章悟,田村宗明,佐藤秀一,今井健一
    • Organizer
      第65回歯科基礎医学会学術大会・総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 歯周病原菌が一般病原菌の発育と病原因子に及ぼす影響2023

    • Author(s)
      西浦英亀, 田村宗明,今井健一
    • Organizer
      第65回歯科基礎医学会学術大会・総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Flexural strength of novel hard relining material containing S-PRG filler2023

    • Author(s)
      Sunami A, Inokoshi M, Tamura M, Hatano K, Minakuchi S
    • Organizer
      62nd Annual Scientific Meeting of the IADR ANZ Division
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 天然成分を用いた抗菌効果の基礎研究と臨床実用化への試み2023

    • Author(s)
      田村宗明
    • Organizer
      神奈川歯科大学・大学院講義
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Candida albicansの病原性に及ぼす歯周病原菌の関与について2023

    • Author(s)
      西浦英亀, 田村宗明, 髙橋佑和, 浦田健太郎, 西尾健介, 坪田健嗣, 濱中一将, 飯沼利光
    • Organizer
      第26回 日本補綴歯科学会 関東支部会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 植物由来抗菌成分とイオンがCandida albicansに及ぼす影響2023

    • Author(s)
      西浦英亀,田村宗明,今井健一
    • Organizer
      第96回日本細菌学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Porphyromonas gingivalis Adhesion on Highly Polished Tooth-colored Materials2022

    • Author(s)
      Tonprasong W, Inokoshi M, Tamura M, Wada T, Takehashi R, Nozaki K, Minakuchi S
    • Organizer
      2022 IADR/APR General Session & Exhibition
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 非アルコール性脂肪性肝炎由来肝細胞がんにおける歯周病の関与2022

    • Author(s)
      琢磨 遼,両角俊哉,松井嵩昌,山本裕子,結束貴臣,米田正人,野上麻子,小林 貴,杉原俊太郎,鎌田要平,田村宗明,光藤健司,中島 淳,三邉正人,小牧基浩
    • Organizer
      第65回秋季歯周病学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] S-PRGフィラーから放出されるイオンがStreptococcus pneumoniaeに及ぼす抗菌効果2022

    • Author(s)
      田村宗明,今井健一
    • Organizer
      第64回歯科基礎医学会学術大会・総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 歯周病原菌培養上清と抗菌成分が肺炎レンサ球菌に及ぼす影響2022

    • Author(s)
      河野 由,田村宗明,神尾宜昌,田中 一、今井健一
    • Organizer
      第95回日本細菌学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Impact of S-PRG elutes on lipase gene expression in Candida albicans2021

    • Author(s)
      Tonprasong W, Inokoshi M, Hatano K, Tamura M, Shimizubata M, Minakuchi S
    • Organizer
      CED-IADR・NOF Oral Health Research Congress 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Long-term antimicrobial effects of 4-META/MMA-TBB resin containing antibacterial agents2021

    • Author(s)
      Yamamoto M, Inokoshi M, Tamura M, Yoshihara K, Minakuchi S
    • Organizer
      CED-IADR・NOF Oral Health Research Congress 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] S-PRGフィラーが口腔細菌に及ぼす抗菌効果と抗菌機序2021

    • Author(s)
      河野 由,田村宗明,今井健一
    • Organizer
      第63回歯科基礎医学会学術大会・総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 電解酸性機能水による含嗽効果の検討 -抗菌効果と宿主細胞への影響-2021

    • Author(s)
      西尾健介,田村宗明,及川大智,浅野正岳
    • Organizer
      第19回日本機能水学会学術大会
    • Related Report
      2021 Research-status Report
  • [Book] 口腔と呼吸器疾患との関連~予後を分ける口腔健康管理の重要性~2024

    • Author(s)
      神尾宜昌,田村宗明,岡﨑章悟,今井健一
    • Total Pages
      5
    • Publisher
      日本歯科医師会雑誌
    • Related Report
      2023 Annual Research Report
  • [Book] 口腔細菌と口腔および全身疾患-未培養菌の話題を中心に-.未培養微生物研究の最新動向2023

    • Author(s)
      田村宗明,今井健一
    • Total Pages
      11
    • Publisher
      シーエムシー出版
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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