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Investigation of gene-environment interactions in tooth loss: a genome-wide association analysis

Research Project

Project/Area Number 18K09908
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57080:Social dentistry-related
Research InstitutionHiroshima University

Principal Investigator

Naito Mariko  広島大学, 医系科学研究科(歯), 教授 (10378010)

Co-Investigator(Kenkyū-buntansha) 若井 建志  名古屋大学, 医学系研究科, 教授 (50270989)
中杤 昌弘  名古屋大学, 医学系研究科(保健), 准教授 (10559983)
松井 大輔  京都府立医科大学, 医学(系)研究科(研究院), 助教 (20613566)
渡邉 功  京都府立医科大学, 医学(系)研究科(研究院), 助教 (10636525)
三宅 達郎  大阪歯科大学, 歯学部, 教授 (40200141)
伊藤 博夫  徳島大学, 大学院医歯薬学研究部(歯学域), 教授 (40213079)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords歯数 / ゲノムワイド関連解析 / 一塩基多型 / 口腔保健 / 疫学研究 / 遺伝子型 / 遺伝子環境交互作用 / 喪失歯数 / コホート研究 / 喪失歯
Outline of Final Research Achievements

In the Japan Multi-Institutional Collaborative Cohort Study (J-MICC Study), participants aged 35-69 years provided biological samples and lifestyle data after giving informed consent. The GWAS data analysis was performed on 3,074 participants from the Shizuoka area, the Daiko study, and the Kyoto field of the J-MICC study with no missing data on tooth number. Several factors such as age, sex, BMI, smoking, and education were considered as adjustment variables. The significance level was set at 5 x 10(-8). One single nucleotide polymorphism (SNP) (rs75073920) was identified that reached the genome-wide significance level. The reproducibility of the identified SNP was verified using samples from the Shizuoka area and the Daiko study.

Academic Significance and Societal Importance of the Research Achievements

歯牙喪失につながる歯周病や齲蝕をアウトカムとしたGWAS研究報告は認められるものの、分子疫学分野において歯数に関する研究報告はいまだ少ない状況である。遺伝学的背景や環境が異なる集団での外的妥当性は不明であり、日本人を対象とした検討の必要性も増している。歯牙喪失にかかわる環境要因として、性や年齢以外に、喫煙や糖尿病罹患、精神的健康度、身体活動度など多数報告されている。様々な環境要因を含めた、歯牙喪失の遺伝子環境交互作用に関する検討は重要な意義を持つ。本研究成果は生涯を通じた口腔の健康づくりに資するものと考えられる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 母親のう蝕経験と子どもの早期小児う蝕の関連:システマティック・レビューによる検討.2022

    • Author(s)
      近藤実南,隅谷笑里,西村瑠美,石津花子,浅尾友里愛,岩本優子,内藤真理子.
    • Journal Title

      広大歯誌

      Volume: 54 Pages: 63-68

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 歯周病と認知機能低下に関する文献的考察.2022

    • Author(s)
      濱久保晴香, 佐々木香奈栄, 西村瑠美, 鶴田圭伊子, 石上真麗, 重田茉穂, 内藤真理子.
    • Journal Title

      広大歯誌

      Volume: 54 Pages: 69-77

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study Profile of the Japan Multi-institutional Collaborative Cohort (J-MICC) Study2021

    • Author(s)
      Takeuchi K, Naito M, Kawai S, et al.
    • Journal Title

      Journal of Epidemiology

      Volume: 31 Issue: 12 Pages: 660-668

    • DOI

      10.2188/jea.JE20200147

    • NAID

      130008125571

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2021-12-05
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Association of number of teeth present with nutrient intake.2021

    • Author(s)
      Asaeda M, Nishimura R, Suma S, Tsukamoto M, Kadomatsu Y, Kubo Y, Okada R, Nagayoshi M, Tamura T, Hishida A, Takeuchi K, Wakai K, Ishizu H, Naito M.
    • Organizer
      The 2nd World Dysphagia Summit
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 糖尿病既往と口腔状態および口腔保健行動や意識の関連.2021

    • Author(s)
      石津花子, 西村瑠美, 山田幸子, 瀬川伸広, 内堀典保, 畔栁由佳里,宇佐美毅, 若井建志, 内藤真理子.
    • Organizer
      第105回広島大学歯学会
    • Related Report
      2021 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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