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2013 Fiscal Year Annual Research Report

低濃度フッ化物による骨吸収抑制機構の解明

Research Project

Project/Area Number 23593110
Research InstitutionKanagawa Dental College

Principal Investigator

荒川 浩久  神奈川歯科大学, 歯学研究科(研究院), 教授 (00130906)

Co-Investigator(Kenkyū-buntansha) BHAWAL Ujjal  日本大学, 歯学部, 助教 (50433339)
Keywords低濃度フッ化物 / 実験的歯周病モデル / 骨芽細胞 / 破骨細胞 / 炎症状態
Research Abstract

実験的歯周病モデルラットを用いたF摂取の骨芽細胞および破骨細胞に及ぼす影響の検討
3週齢のSDラットを使用した。ラットの健康状態を観察後、抗生物質を服用させ、口腔常在菌を減少させた後、PBSで作製した5%カルボキシメチルセルロース溶液で調整したP. gingivalis ATCC33277株の菌液を一日おきに3回ラット口腔内へ直接播種し実験的歯周炎を惹起した。Fの摂取は、NaF粉末をイオン交換水に溶解して調整したμMレベルの低濃度Fを常時摂取させた。P. gingivalis播種最終日から3日、7日および28日で屠殺後、試料を回収する。また、菌の定着を確認するため、屠殺時に採取した口腔内試料よりDNAを抽出しP. gingivalis特異的プライマーを用いたPCR法を行った。歯槽骨吸収量の評価は、マイクロCTによる解析、およびFLOVEL タブレット操作型ビデオミクロメータを用いてセメントエナメル境から歯槽骨頂までの距離を測定することで行った。また、炎症状態の評価は、H-E染色による病理組織学評価、抗ラットマクロファージ/樹状細胞モノクロナール抗体(Clone No. RM-4)およびTNF-αの免疫組織学的評価より行った。さらに骨芽細胞活性を評価するため1型コラーゲン、ALP、OPN、 OCN、BSPの発現を免疫組織学的に評価した。破骨細胞活性を評価するためTRAP染色およびカテプシンK、MMP-9、MMP-2の発現を免疫組織学的に解析した。

  • Research Products

    (16 results)

All 2014 2013

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (9 results) (of which Invited: 2 results)

  • [Journal Article] Receptor for advanced glycation end products is required for HMGB1/S100A4/NF-κβ interaction In Porphyromonas gingivalis induced gingival inflammation2014

    • Author(s)
      He D, Sun J, Bhawal UK, Fukuoka CY, Huang YC, Hamada N, Arakawa H
    • Journal Title

      Journal of Hard Tissue Biology

      Volume: 1 Pages: 55-62

    • Peer Reviewed
  • [Journal Article] Low level fluoride stimulates epithelial-mesenchymal interaction in oral mucosa2013

    • Author(s)
      He D, Bhawal UK, Hamada N, Kuboyama N, Abiko Y, Arakawa H
    • Journal Title

      Journal of Hard Tissue Biology

      Volume: 22(1) Pages: 59-66

    • Peer Reviewed
  • [Journal Article] Tropomyosin receptor kinases B and C are tumor progressive and metastatic marker in colorectal carcinoma2013

    • Author(s)
      Sasahira T, Ueda N, Kurihara M, Bhawal UK (他5名)
    • Journal Title

      Human Pathology

      Volume: 44(6) Pages: 1098-1106

    • Peer Reviewed
  • [Journal Article] Expression of caveolin-1 in the early phase of beta-TCP implanted in dog mandible2013

    • Author(s)
      Chou CT, Bhawal UK, Watanabe N, Kuboyama N, Chang WJ, Lee SY, Abiko Y
    • Journal Title

      Journal of Biomedical Material Research B Applied Biomaterials

      Volume: 101(5) Pages: 804-812

    • DOI

      10.1002/jbm.b.32884

    • Peer Reviewed
  • [Journal Article] Silk fibroin-based scaffolds for bone regeneration2013

    • Author(s)
      Kuboyama N, Kiba H, Arai K, Uchida R, Tanimoto Y, Bhawal UK, Abiko Y, Miyamoto S, Knight D, Asakura T, Nishiyama N
    • Journal Title

      Journal of Biomedical Material Research B Applied Biomaterials

      Volume: 101(2) Pages: 295-302

    • DOI

      10.1002/jbm.b.32839

    • Peer Reviewed
  • [Journal Article] bFGF upregulates the expression of NGFR in PC12 cells2013

    • Author(s)
      Shimosaka M, Bhawal UK
    • Journal Title

      Journal of Hard Tissue Biology

      Volume: 1 Pages: 19-24

    • Peer Reviewed
  • [Journal Article] Expression of BDNF and TrkB in gingival inflammation2013

    • Author(s)
      Somei C, Bhawal UK
    • Journal Title

      Journal of Hard Tissue Biology

      Volume: 1 Pages: 25-34

    • Peer Reviewed
  • [Presentation] Transcription factor DEC1 and Epithelial-Mesenchymal Transition2013

    • Author(s)
      Ujjal K. Bhawal
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸国際会議場、神戸、兵庫
    • Year and Date
      20131203-20131206
  • [Presentation] Molecular mechanism of transcription factors DEC1 and DEC2 in cancer2013

    • Author(s)
      Ujjal K. Bhawal
    • Organizer
      Korean Academy of Oral Biology
    • Place of Presentation
      KyungHee University Dental School, South Korea
    • Year and Date
      20131129-20131129
    • Invited
  • [Presentation] Micromolar fluoride reduces alveolar bone loss in experimental rat periodontitis2013

    • Author(s)
      Ujjal K. Bhawal
    • Organizer
      Korean Academy of Oral Pathology
    • Place of Presentation
      KyungHee University Dental School, South Korea
    • Year and Date
      20131128-20131128
    • Invited
  • [Presentation] Basic helix-loop helix transcription factor DEC1 and Epithelial-Mesenchymal Transition2013

    • Author(s)
      Ujjal K. Bhawal, Tomonori Sasahira, Cintia Y. Fukuoka, Hiroki Kuniyasu, Yoshimitsu Abiko
    • Organizer
      第72回日本癌学会学術総会
    • Place of Presentation
      パシフィコ横浜、横浜
    • Year and Date
      20131003-20131005
  • [Presentation] Prox1 and FOXC2 act as regulator of lymphangiogenesis and angiogenesis in oral cancer2013

    • Author(s)
      Tomonori Sasahira, Miyako Kurihara, Ujjal Bhawal, Tadaaki Kirita, Hiroki Kuniyasu
    • Organizer
      第72回日本癌学会学術総会
    • Place of Presentation
      パシフィコ横浜、横浜
    • Year and Date
      20131003-20131005
  • [Presentation] Effect of Protamine-Hydrolysate Peptides (DMX) in oral hygiene2013

    • Author(s)
      Ujjal K. Bhawal, Noboru Kuboyama, Yoshimitsu Abiko
    • Organizer
      FDI Annual World Dental Congress
    • Place of Presentation
      Istanbul, Turkey
    • Year and Date
      20130828-20130831
  • [Presentation] Transcriptome analysis of bFGF-induced rat pheochromocytoma cells2013

    • Author(s)
      Yoshitsugu Ishikawa, Ujjal K. Bhawal, Ko Shibutani
    • Organizer
      FDI Annual World Dental Congress
    • Place of Presentation
      Istanbul, Turkey
    • Year and Date
      20130828-20130831
  • [Presentation] Epigenetic regulation of CXCL14 expression in oral cancer2013

    • Author(s)
      Ujjal K. Bhawal, Cintia Y. Fukuoka, Yoshimitsu Abiko
    • Organizer
      IADR Asia Pacific Region
    • Place of Presentation
      Plaza Athenee, Bangkok, Thailand
    • Year and Date
      20130821-20130823
  • [Presentation] Effects of laser therapy on diabetic rat salivary glands2013

    • Author(s)
      Cintia Y. Fukuoka, Ujjal K. Bhawal, Alyene Simoes, Victor E. Arana-Chevez, Noboru Kuboyama, Yoshimitsu Abiko
    • Organizer
      IADR Asia Pacific Region
    • Place of Presentation
      Plaza Athenee, Bangkok, Thailand
    • Year and Date
      20130821-20130823

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Published: 2015-05-28  

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