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Effect of dental-plaque eco-system to caries-related genes in cariogenic mutans streptococci

Research Project

Project/Area Number 22390391
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Orthodontic/Pediatric dentistry
Research InstitutionHiroshima University

Principal Investigator

KOZAI Katsuyuki  広島大学, 大学院・医歯薬保健学研究院, 教授 (10178212)

Co-Investigator(Kenkyū-buntansha) YOSHIMURA Go  広島大学, 大学院・医歯薬学総合研究科, 助教 (50403530)
HAYASHI Fumiko  広島大学, 大学院・医歯薬学総合研究科, 助教 (50325180)
MITSUHATA Chieko  広島大学, 大学院・医歯薬学総合研究科, 助教 (10335664)
OHHARA Yukari  広島大学, 大学院・医歯薬学総合研究科, 助教 (80634469)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywordsミュータンスレンサ球菌 / う蝕 / プラークエコシステム / 酸性環境 / early childhood caries / 酸産生菌 / 齲蝕 / 酸産生能 / 齲蝕細菌 / Automutanolysin / ラット齲蝕実験モデル / 酸性環境下 / gtfB / 耐酸性能 / オレアノール酸 / Automutanolvsin
Research Abstract

A result of examining the properties obtained from mutans streptococci (MS) and plaque in children showed that the ratio of MS in plaque related to caries severity nature of MS. Apparent difference was found in expression level of caries-related genes in the acidic environment in particular between high caries group and low-caries group. On the other hand, the tendency of plaque formation inhibition was observed in the Aml study of dental caries in the rat experimental model. The basic results of the (patent) clinical application was obtained revealed the plaque produce inhibitory effect on MS of Pamis extract from grape containing a large amount of oleanolic acid.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (11 results)

All 2012 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Streptococcus mutansに対するブ2011

    • Author(s)
      大原 紫,吉村 剛,小西俊成,光畑智恵子,香西克之
    • Journal Title

      ドウ酒絞り粕抽出成分の抑制効果小児歯科学雑誌

      Volume: 49 Pages: 251-258

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Streptococcus mutansに対するブドウ酒絞り粕抽出成分の抑制効果2011

    • Author(s)
      大原紫, 吉村剛, 小西俊成, 光畑智恵子, 香西克之
    • Journal Title

      小児歯科学雑誌

      Volume: 49 Pages: 251-258

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 小児の齲蝕重症度と臨床分離Streptococcus mutans の性状の検討2012

    • Author(s)
      大原 紫
    • Organizer
      第50回日本小児歯科学会大会
    • Place of Presentation
      東京国際フォーラム.
    • Year and Date
      2012-05-13
    • Related Report
      2012 Final Research Report
  • [Presentation] 1: 小児の齲蝕重症度と臨床分離Streptococcus mutansの性状の検討2012

    • Author(s)
      :大原 紫
    • Organizer
      第50回日本小児歯科学会大会
    • Place of Presentation
      東京国際フォーラム
    • Related Report
      2012 Annual Research Report
  • [Presentation] 口腔内環境因子がStreptococcus mutans の齲蝕関連遺伝子に及ぼす影響2011

    • Author(s)
      大原 紫
    • Organizer
      口腔内環境因子がStreptococcus mutans の齲蝕関連遺伝子に及ぼす影響
    • Place of Presentation
      広島大学歯学部大講義室
    • Year and Date
      2011-12-14
    • Related Report
      2012 Final Research Report
  • [Presentation] 口腔内環境因子がStreptococcus mutansの齲蝕関連遺伝子に及ぼす影響2011

    • Author(s)
      大原紫
    • Organizer
      第6回学位請求論文学内発表会
    • Place of Presentation
      広島大学歯学部大講義室
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] ワイン圧搾粕(パミス)抽出物のプラーク形成阻害効果およびう蝕原因菌に及ぼす影響2011

    • Author(s)
      小西俊成
    • Organizer
      日本食品科学工学会
    • Place of Presentation
      東北大学
    • Year and Date
      2011-09-11
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 小児のデンタルプラークより検出される S.mutans の分布および性状の検討2010

    • Author(s)
      大原紫、吉村剛、香西克之
    • Organizer
      平成22年度日本小児歯科学会秋季大会
    • Place of Presentation
      福島(郡山)
    • Year and Date
      2010-12-02
    • Related Report
      2012 Final Research Report
  • [Presentation] 小児のデンタルプラークより検出されるS.mutaneの分布および性状の検討2010

    • Author(s)
      大原紫、吉村剛、香西克之
    • Organizer
      平成22年度日本小児歯科学会秋季大会
    • Place of Presentation
      福島(郡山)
    • Year and Date
      2010-12-02
    • Related Report
      2010 Annual Research Report
  • [Patent(Industrial Property Rights)] う蝕予防剤,歯周病予防剤及び口腔用組成物2011

    • Inventor(s)
      香西克之,吉村 剛,小西俊成,間和彦
    • Industrial Property Rights Holder
      広島大学,日本製粉(株)
    • Filing Date
      2011-06-29
    • Related Report
      2012 Final Research Report
  • [Patent(Industrial Property Rights)] う蝕予防剤,歯周病予防剤及び口腔用組成物2011

    • Inventor(s)
      香西克之, 吉村剛, 小西俊成, 間和彦
    • Industrial Property Rights Holder
      広島大学,日本製粉(株)
    • Industrial Property Number
      2011-144421
    • Filing Date
      2011-06-29
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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