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Identification of factors inducing hepatic glucose and lipid metabolism abnormalities via intestine and portal vein by periodontal infection using omics analysis.

Research Project

Project/Area Number 18K09573
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57030:Conservative dentistry-related
Research InstitutionOsaka University

Principal Investigator

Kashiwagi Yoichiro  大阪大学, 歯学研究科, 助教 (20598396)

Co-Investigator(Kenkyū-buntansha) 石濱 泰  京都大学, 薬学研究科, 教授 (30439244)
岩山 智明  大阪大学, 歯学研究科, 助教 (80757865)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords歯周病 / 糖尿病 / 腸内細菌叢 / 口腔内細菌 / 腸内細菌 / ディスバイオシス / 高血糖 / 歯周病菌 / 糖新生
Outline of Final Research Achievements

We hypothesized that periodontal bacteria that reach the gastrointestinal tract through the oral cavity cause dysbiosis in the intestine, and that the specific metabolites produced modify the metabolic function of the liver via the portal vein, thereby affecting diabetes mellitus.
We injected a suspension of P. gingivalis (P.g) from the oral cavity every 3 days for 30 days into 7~11 week old db/db mice as a model of experimental periodontitis. The results showed a significant increase in blood glucose level in the P.g-treated group and a significant enhancement of the expression of PCK1, a glycogenesis-related factor, and its transcription factor FOXO1 in the liver. Furthermore, metaproteome analysis of feces showed that the amino acid sequence unique to P.g bacteria was detected only in the P.g-treated group.

Academic Significance and Societal Importance of the Research Achievements

歯周病の主原因は歯周ポケット局所において、歯周病菌で構成される細菌バイオフィルムの蓄積により歯周組織の破壊が進行する病気である。近年、歯周病菌が他の食物栄養素と共に消化管へ到達する事により、腸内細菌叢が変化し全身に影響を及ぼしているという考えが報告されてきたが、糖尿病に対する詳しいメカニズム詳細はわかっていない。本研究計画によりP.g菌が腸内まで到達していることを示唆する結果が得られ、その流路にあたる小腸においてポリアミン関連分子の優位な低下が検出されたことは肝臓における糖新生亢進に関与している可能性が示唆された。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 2018

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

  • [Journal Article] A MapReduce-like Deep Learning Model for the Depth Estimation of Periodontal Pockets2019

    • Author(s)
      Moriyama Yusuke、Lee Chonho、Date Susumu、Kashiwagi Yoichiro、Narukawa Yuki、Nozaki Kazunori、Murakami Shinya
    • Journal Title

      The 12th International Joint Conference on Biomedical Engineering Systems and Technologies

      Volume: 5 Pages: 388-395

    • DOI

      10.5220/0007405703880395

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 糖尿病マウスにおいて歯周病菌が肝臓代謝機能に及ぼす影響2020

    • Author(s)
      柏木陽一郎、生川由貴、和泉自泰、杉山直幸、馬場健史、石濱泰、柏木厚典、村上伸也
    • Organizer
      第63回日本糖尿病学会年次学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高血糖状態が歯肉上皮の細胞接着に及ぼす影響2020

    • Author(s)
      生川由貴、柏木陽一郎、竹立匡秀、村上伸也
    • Organizer
      日本歯科保存学会2020年度春季学術大会(第151回)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高血糖状態がヒト歯肉上皮細胞および糖尿病マウス歯肉組織における細胞間接着に及ぼす影響2020

    • Author(s)
      生川由貴、富永翔太郎、柏木陽一郎、村上伸也
    • Organizer
      第63回秋季日本歯周病学会学術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Intercellular Adhesion of Gingival Epithelium in Hyperglycemia2020

    • Author(s)
      Yuki Narukawa, Yoichiro Kashiwagi, Chiaki Morimoto, Keigo Sawada, Masahide Takedachi, Shinya Murakami.
    • Organizer
      2020 IADR/ AADR/ CADR General Session & Exhibition
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Porphyromonas gingivalis exacerbates hyperglycemia in diabetic mice via gut dysbiosis2019

    • Author(s)
      Yoichiro Kashiwagi, Yuki Narukawa, Shiori Hasegawa, Masahide Takedachi, Yoshihiro Izumi, Takeshi Bamba, Yasushi Ishihama, and Shinya Murakami
    • Organizer
      4th Meeting of the International Association for Dental Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intercellular Adhesion of Gingival Epithelial Cells in Hyperglycemic Condition2019

    • Author(s)
      Yuki Narukawa, Yoichiro Kashiwagi, Chiaki Morimoto, Keigo Sawada, Masahide Takedachi, Shinya Murakami.
    • Organizer
      4th Meeting of the International Association for Dental Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intercellular Adhesion of Gingival Epithelium in Hyperglycemia2019

    • Author(s)
      Yuki Narukawa, Yoichiro Kashiwagi, Chiaki Morimoto, Keigo Sawada, Masahide Takedachi, Shinya Murakami.
    • Organizer
      98th General Session & Exhibition of the IADR
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高血糖状態が歯肉上皮の細胞接着に及ぼす影響2019

    • Author(s)
      生川由貴、柏木陽一郎、森本千晶、沢田啓吾、竹立匡秀、村上伸也
    • Organizer
      第62回 春季日本歯周病学会
    • Related Report
      2019 Research-status Report
  • [Presentation] A MapReduce-like Deep Learning Model for the Depth Estimation of Periodontal Pockets2019

    • Author(s)
      Yusuke Moriyama, Chonho Lee, Susumu Date, Yoichiro Kashiwagi, Yuki Narukawa, Kazunori Nozaki and Shinya Murakami
    • Organizer
      HEALTHINF 2019 12th International Conference on Health Informatics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Clinical Evaluation of Periodontal Tissue Regeneration by ADMPC Transplantation2018

    • Author(s)
      Masahide Takedachi, Keigo Sawada, Chiaki Morimoto, Satomi Yamamoto, Asae Hirai, Junpei Shimomura, Yuki Narukawa, Yoichiro Kashiwagi, Tomoaki Iwayama, Masahiro Kitamura, Shinya Murakami
    • Organizer
      96th General Session and Exhibition of the IADR
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Therapeutic efficacy of autologous ADMPC transplantation for periodontal tissue regeneration2018

    • Author(s)
      Chiaki Morimoto, Masahide Takedachi, Keigo Sawada, Satomi Yamamoto, Asae Hirai, Junpei Shimomura, Yuki Narukawa, Yoichiro Kashiwagi, Tomoaki Iwayama, Masahiro Kitamura, Shinya Murakami
    • Organizer
      第66回国際歯科研究学会日本部会総会・学術大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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