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Development of new oral health index based on oral nitrate reduction activity

Research Project

Project/Area Number 16K11876
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Social dentistry
Research InstitutionOsaka Dental University

Principal Investigator

MASHIMO CHIHO  大阪歯科大学, 歯学部, 講師 (80368159)

Co-Investigator(Kenkyū-buntansha) 馬場 俊輔  大阪歯科大学, 歯学部, 教授 (40275227)
南部 隆之  大阪歯科大学, 歯学部, 講師 (80367903)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords口腔細菌叢 / 硝酸還元 / 口腔健康 / メタゲノム解析 / ゲノム解析 / 口腔菌叢バランス / Rothia属細菌 / 硝酸還元性 / 口腔常在菌叢 / 口腔善玉菌 / 口腔硝酸還元活性 / ロシア属細菌 / 硝酸還元菌 / 口腔常在菌
Outline of Final Research Achievements

A result of oral metagenomic analysis have revealed that some bacterial species (especially Rothia and Actinomyces) related to healthy oral conditions. We understand one of the factors that some Rothia species act as "good bacteria" in the oral cavity is their high nitrate reduction activity. We determined the whole genome sequences of oral Rothia species, and clarified genes involved in the nitrate reduction. In addition, in order to create a new indicator of oral health level, we established a new experimental system for simultaneous monitoring the changes oral environmental condition and oral microbiota.

Academic Significance and Societal Importance of the Research Achievements

本研究により、口腔健康に貢献するRothia属細菌の働きの一端が遺伝子レベルで明らかになった。Rothia属細菌を口腔善玉菌のひとつのモデルと考えて、その働きを遺伝子改変・他菌種との相互関連性など多方面からアプローチしていくことができる基盤が整ったと言える。また、口腔に物質を添加した後の環境変化と個々の細菌の変化を捉えるモデル実験系を確立できた。この方法を利用すれば、どのような条件が整えば、口腔善玉菌(悪玉菌)が増えるのか(減るのか)をin vitroの実験において推測できると考える。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (7 results)

  • [Journal Article] Nitric oxide donor modulates a multispecies oral bacterial community - an in vitro study.2019

    • Author(s)
      Takayuki Nambu, Dan Wang, Chiho Mashimo, Hugo Maruyama, Kosuke Kashiwagi, Kazushi Yoshikawa, Kazuyo Yamamoto, Toshinori Okinaga.
    • Journal Title

      Microorganisms

      Volume: 7 Issue: 9 Pages: 353-353

    • DOI

      10.3390/microorganisms7090353

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Primer Design for the Identification of Ten Oral Actinomyces Species Using Multiplex PCR2018

    • Author(s)
      T Kobayashi、S Uchibori、O Tsuzukibashi、C Uezato、H Goto、C Mashimo、T Nambu、K Umezawa、M Ohta
    • Journal Title

      International Journal of Dentistry and Oral Health

      Volume: 4 Issue: 1 Pages: 1-6

    • DOI

      10.16966/2378-7090.249

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A preliminary study of the effect of room-temperature incubation on phylogenetic composition of salivary microbiota.2018

    • Author(s)
      Enomoto A, Nambu T, Mashimo C, Nakatani K, Komuro A, Nakajima Y, Honda M, Ito Y, Hara T, Kusano K, Yamada Y, Botticelli D, Baba S.
    • Journal Title

      Journal of Oral Science & Rehabilitation

      Volume: 4 Pages: 24-30

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of ultraviolet treatment on bacterial attachment and osteogenic activity to alkali-treated titanium with nanonetwork structures2017

    • Author(s)
      Honghao Zhang, Satoshi Komasa, Chiho Mashimo, Tohru Sekino, Joji Okazaki.
    • Journal Title

      Int J Nanomedicine

      Volume: 12 Pages: 4633-4646

    • DOI

      10.2147/ijn.s136273

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genome Sequence of Actinomyces naeslundii Strain ATCC 27039, Isolated from an Abdominal Wound Abscess.2016

    • Author(s)
      Mashimo C, Yamane K, Yamanaka T, Maruyama H, Wang PL, Komasa S, Okazaki J, Nambu T.
    • Journal Title

      Genome Announc

      Volume: 4(6) Issue: 6

    • DOI

      10.1128/genomea.01443-16

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Complete Genome Sequence of Rothia aeria Type Strain JCM 11412, Isolated from Air in the Russian Space Laboratory Mir.2016

    • Author(s)
      Nambu T, Tsuzukibashi O, Uchibori S, Yamane K, Yamanaka T, Maruyama H, Wang PL, Mugita N, Morioka H, Takahashi K, Komasa Y, Mashimo C.
    • Journal Title

      Genome Announcements

      Volume: 4 Issue: 6

    • DOI

      10.1128/genomea.01444-16

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 口腔菌叢培養モデルによるスクロース依存的に変動する細菌群の同定2018

    • Author(s)
      真下千穂、南部隆之、円山由郷、沖永敏則
    • Organizer
      第60回歯科基礎医学会学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 口腔菌叢培養モデルを用いた一酸化窒素感受性細菌の同定2018

    • Author(s)
      南部隆之、真下千穂、円山由郷、沖永敏則
    • Organizer
      第60回歯科基礎医学会学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 唾液サンプルの保存条件における細菌叢変化2018

    • Author(s)
      榎本温子、南部隆之、真下千穂、円山由郷、 馬場俊輔,、沖永敏則
    • Organizer
      第71回日本細菌学会関西支部総会
    • Related Report
      2018 Research-status Report
  • [Presentation] ゲノム解析から明らかとなった口腔細菌叢バランスに関わる因子2018

    • Author(s)
      円山由郷、南部隆之、真下千穂、沖永敏則、川添堯彬
    • Organizer
      臨床ゲノム医療学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 口腔でショ糖非依存性にバイオフィルムを形成するActinomyces orisのゲノム解析.2018

    • Author(s)
      山根一芳, 南部隆之, 真下千穂, 円山由郷, 山中武志
    • Organizer
      第12回ゲノム微生物学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] アルカリ処理によりナノ構造制御された純チタン金属表面への UV 処理が細菌の接着および硬組織分化誘導に与える影響について2017

    • Author(s)
      Honghao Zhang, 小正聡, 真下千穂, 関野徹, 岡崎定司
    • Organizer
      第47回日本口腔インプラント学会学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 口腔由来Rothia属細菌における硝酸還元性についての検討2016

    • Author(s)
      真下千穂、円山由郷、山中武志、山根一芳、王宝禮、南部隆之
    • Organizer
      第58回歯科基礎医学会学術大会
    • Place of Presentation
      札幌コンベンションセンター(北海道・札幌市)
    • Year and Date
      2016-08-24
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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