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2016 Fiscal Year Annual Research Report

Resolution of Oral Biofilme Formation at Early Stage

Research Project

Project/Area Number 26462793
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

中澤 太  北海道医療大学, 歯学部, 教授 (60115053)

Co-Investigator(Kenkyū-buntansha) 宮川 博史  北海道医療大学, 歯学部, 講師 (30219729)
藤田 真理  北海道医療大学, 歯学部, 助教 (50405669)
Project Period (FY) 2014-04-01 – 2017-03-31
Keywords口腔バイオフィルム / Veillonella / メタゲノム解析 / 唾液の細菌叢 / rpo B / 新菌種
Outline of Annual Research Achievements

1.学童の口腔内診査を行い、清掃状態によってgood, moderate, poorの3群に分類し、得られた唾液のマイクロバイオームを、メタゲノム解析を行った。その結果、口腔清掃状態の悪化に伴ってStreptococcus属細菌の割合が減少し、偏性嫌気性のVeillonella属細菌の割合が増加した。
2.各唾液試料をBHI寒天培地とrogosa寒天培地に播種し、それぞれのCFUを計測した。更に、rogosa寒天培地に生育した株は、グラム染色とVeillonellaのgenus specific primerを用いたPCRによってVeillonella属細菌であることを確認した。その結果、上記と同様に口腔清掃状態の悪化に伴ってVeillonella属細菌の割合が増加することが確認された。
3.合計1609株のVeillonella属細菌が分離された。rpo B geneの塩基配列から設計したSpecies specific primerを応用したPCR法を用いて、この1609株をspeciesレベルで同定した。その結果、1609株中167株が既報のVeillonella属細菌種には分類されないUnknown-Veillonella isolateであることは判明した。このUnknown-Veillonella isolateの分離頻度は、口腔清掃状態の悪いpoor群で、最も高かった。
4.Unknown-Veillonella isolateの遺伝学的系統分類を行うために、167株から28株を抽出し、それらのrpo B geneの塩基配列を解析した。その塩基配列を用いて、NJ法によるevolutionary treeを構築した。その結果、Unknown-Veillonella isolateには遺伝学的多様性が認められると同時に、既報の菌種とは異なる新菌種の存在が示唆された。

  • Research Products

    (18 results)

All 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 6 results,  Acknowledgement Compliant: 6 results) Presentation (11 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] Mahidol University/Faculty of Dentistry/Department of Oral Biology(タイ)

    • Country Name
      THAILAND
    • Counterpart Institution
      Mahidol University/Faculty of Dentistry/Department of Oral Biology
  • [Journal Article] Identification of Veillonella Species in the Tongue Biofilm by Using a Novel One-step Polymerase Chain Reaction Method2016

    • Author(s)
      Izumi Mashima, Citra Fragrantia Theodorea, Boonyanit Thaweboon, Sroisiri Thaweboon, Futoshi Nakazawa*
    • Journal Title

      PLOS ONE

      Volume: 11(6): e0157516 Pages: 1, 16

    • DOI

      10.1371/journal.pone.0157516

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Effect of roselle calyx extract on gingipain activity, production of inflammatory cytokines, and oral bacterial morphology.2016

    • Author(s)
      Herastuti Sulistyani, Mari Fujita, Futoshi Nakazawa
    • Journal Title

      Journal of Microbiology, Biotechnology and Food Sciences

      Volume: 6(3) Pages: 961, 965

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Application of Dental Implants Coated with Titanium Nitride; The Experimental Study with Porphyromonas gingivalis Infection.2016

    • Author(s)
      Koutaro Yamazaki, Izumi Mashima, Futoshi Nakazawa, Yasuhiro Nakanishi, Morio Ochi
    • Journal Title

      International Journal of Current Microbiology and Applied Sciences

      Volume: 6(1) Pages: 130, 142

    • DOI

      doi.org/10.20546/ijcmas.2017.601.017

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Effect of roselle calyx extract on in vitro viability and biofilm formation ability of oral pathogenic bacteria.2016

    • Author(s)
      Sulistyani H, Fujita M, Miyakawa H, Nakazawa F
    • Journal Title

      Asian Pacific Journal of Topical Medicine

      Volume: 9(2) Pages: 119, 124

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Activation of nucleotide-binding domain-like receptor containing protein 32016

    • Author(s)
      Ayumi Saeki, Toshihiko Suzuki, Akira Hasebe, Ryousuke Kamezaki, Mari Fujita, Futoshi Nakazawa, and Ken-ichiro Shibata
    • Journal Title

      Cellular Microbiol.

      Volume: 2 Pages: 1, 12

    • DOI

      10.1111/cmi.12663

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Effects of chitosan fiber addition on the properties of polyurethane with thermo-responsive shape memory.2016

    • Author(s)
      Kyotaro Kawaguchi, Masahiro Iijima, Hiroshi Miyakawa, Mitsuru Ohta, Takeshi Muguruma, Kazuhiko Endo, Futoshi Nakazawa, Itaru Mizoguchi
    • Journal Title

      Applied Biomaterials

      Volume: 2 Pages: 1, 12

    • DOI

      10.1002/jbm.b.33664

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Exploring the Microbial Community in Saliva from Children2017

    • Author(s)
      Izumi MASHIMA, Citra F. THEODOREA, Futoshi NAKAZAWA
    • Organizer
      95 General Session of International Association of Dental Research
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2017-03-20 – 2017-03-25
    • Int'l Joint Research
  • [Presentation] Correlation of Oral Veillonella Species with Oral Hygiene Status2017

    • Author(s)
      Citra F. THEODOREA, Izumi MASHIMA, Futoshi NAKAZAWA
    • Organizer
      95 General Session of International Association of Dental Research
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2017-03-20 – 2017-03-25
    • Int'l Joint Research
  • [Presentation] Exploring the Microbiome in Saliva from (Thai) Children2017

    • Author(s)
      Izumi Mashima, Citra F. Theodorea, Futoshi Nakazawa
    • Organizer
      日本細菌学会
    • Place of Presentation
      仙台
    • Year and Date
      2017-03-19 – 2017-03-21
  • [Presentation] DNA sequence analysis of the novel Veillonella species isolated from saliva of Thai children2017

    • Author(s)
      Citra Fragrantia THEODOREA, Izumi MASHIMA, Futoshi NAKAZAWA
    • Organizer
      日本細菌学会
    • Place of Presentation
      仙台
    • Year and Date
      2017-03-19 – 2017-03-21
  • [Presentation] 口腔Veillonella全6菌種同定One Step PCR法の開発2016

    • Author(s)
      眞島いづみ、Citra Fragrantia Theodorea,中澤 太
    • Organizer
      日本細菌学会北海道支部会
    • Place of Presentation
      札幌
    • Year and Date
      2016-09-17 – 2016-09-17
  • [Presentation] Distribution od Oral Veillonella species Associated with Oral Hygiene Status2016

    • Author(s)
      Citra Fragrantia Theodorea, Izumi Mashima, Futoshi Nakazawa
    • Organizer
      日本細菌学会北海道支部会
    • Place of Presentation
      札幌
    • Year and Date
      2016-09-17 – 2016-09-17
  • [Presentation] The Distribution and Frequency of Oral Veillonella species in Saliva from Thai Children Associated with Oral Hygiene Status2016

    • Author(s)
      Citra Fragrantia THEODOREA, Izumi MASHIMA, Futoshi NAKAZAWA
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      札幌
    • Year and Date
      2016-08-24 – 2016-08-26
  • [Presentation] タイ児童舌苔から分離されたVeillonella属新菌種の塩基配列解析2016

    • Author(s)
      眞島 いづみ、シトラ セオドレア、中澤 太
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      札幌
    • Year and Date
      2016-08-24 – 2016-08-26
  • [Presentation] The Strategy for Oral Biofilm -The Best Use of Oral Veillonella2016

    • Author(s)
      Izumi Mashima, Citra Fragrantia Theodorea, Hiroshi Miyakawa, Futoshi Nakazawa
    • Organizer
      歯科基礎医学会(メインシンポジウム)
    • Place of Presentation
      札幌
    • Year and Date
      2016-08-24 – 2016-08-26
    • Invited
  • [Presentation] Evaluation of structure-activity relationships in penetration of terpene compound into the preformed biofilm2016

    • Author(s)
      M. Fujita, K. Osada, H. Miyakawa, F. Nakazawa
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      札幌
    • Year and Date
      2016-08-24 – 2016-08-26
  • [Presentation] APPLICATION OF TITANIUM NITRIDE FOR DENTAL IMPLANTS:A RABBIT STUDY2016

    • Author(s)
      Izumi MASHIMA, Koutaro YAMAZAKI, Futoshi NAKAZAWA, Yasuhiro NAKANISHI, Morio OCHI
    • Organizer
      Asian Academy of Osseointegretion 2016
    • Place of Presentation
      Bangkok
    • Year and Date
      2016-06-03 – 2016-06-04
    • Int'l Joint Research

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Published: 2018-01-16   Modified: 2022-02-16  

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