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Elucidation of connection between oral microbiome and dry mouth using metagenomic analysis

Research Project

Project/Area Number 19K10421
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 InstitutionNiigata University

Principal Investigator

Kaneko Noboru  新潟大学, 医歯学総合病院, 講師 (00397126)

Co-Investigator(Kenkyū-buntansha) 濃野 要  新潟大学, 医歯学系, 教授 (80422608)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsドライマウス / 菌叢解析
Outline of Research at the Start

近年、高齢者の増加に伴ってドライマウス患者が増加している。これまで、ドライマウスの病態と口腔細菌叢との関連性については、多数の菌種を含む細菌叢を詳細に調べることが技術的に困難であったため、一部の細菌で調べられたのみであった。ところが近年、次世代シークエンサーの登場により多数の菌種からなる細菌叢を網羅的に解析することが可能となった。本研究計画ではこの技術を利用してドライマウス患者の口腔細菌叢を網羅的に解析し、舌痛や頬粘膜痛等の口腔症状に関わる細菌構成を明らかにする予定である。

Outline of Final Research Achievements

We investigated the relationship between oral microflora and oral symptoms associated with dry mouth. First, we confirmed that mouthrinsed samples (spitted solution after mouthrinsing) were suitable as specimens collected from patients with dry mouth by comparing them with the microflora of stimulated saliva. Afterwards, microbiome analysis of the mouth rinsed samples was conducted between the xerostomia group and the normal group. No significant difference was observed between the two groups in Shannon Entropy, an alpha-diversity index. Furthermore, no clear difference was observed in Weighted Unifrac distance, which is a beta-diversity index. However, the principal component for patients who complained of severe tongue pain due to dry mouth was plotted at a location far away from that of other subjects. In this patient, the proportion of Streptococcus was higher than in other subjects, and among these, the proportion of the anginosus group was particularly high.

Academic Significance and Societal Importance of the Research Achievements

高齢者の増加に伴いドライマウス患者が増加している。ドライマウスに伴う口腔症状としては舌痛等の粘膜症状があり、これまで、こうした粘膜症状に関わる口腔細菌としては、カンジダ菌が挙げられていた。本研究により、それらに加えて口腔細菌叢の組成の変化と一部のレンサ球菌が粘膜症状に関わっている可能性が示唆された。また、口腔粘膜症状のあるドライマウス患者に対して苦痛なく口腔細菌叢を調べるための検体として、洗口サンプルを用いることの妥当性が確認された。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 5 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Association between dry eye and periodontal disease in community-dwelling Japanese adults: data from the Uonoma cohort study2024

    • Author(s)
      Kaung Myat Thwin, Noboru Kaneko, Hikaru Okubo, Takayuki Yamaga, Kana Suwama, Akihiro Yoshihara, Masanori Iwasaki, Yumi Ito, Junta Tanaka, Ichiei Narita, Hiroshi Ogawa
    • Journal Title

      BMC Oral Health

      Volume: 24 Issue: 1 Pages: 47-47

    • DOI

      10.1186/s12903-023-03773-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prevalence and Cause of Enamel Hypoplasia in Primary Teeth among 1-year-old Japanese Children2023

    • Author(s)
      Miyamoto Akane、Minagawa Kumiko、Nohno Kaname、Kaneko Noboru、Ichikawa Yu、Hoshino Takashi、Ito Harue、Yoshihara Akihiro
    • Journal Title

      The Open Dentistry Journal

      Volume: 17 Issue: 1 Pages: 1-8

    • DOI

      10.2174/18742106-v17-230303-2022-93

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Associations between plasma antibody levels and Porphyromonas gingivalis and atrial Fibrillation among community-dwelling older individuals in Japan: a cross-sectional study2023

    • Author(s)
      Hoshino T, Kaneko N, Yoshihara A, Iwasaki M, Suwama K, Ito Y, Tanaka J, Narita I, Ogawa H
    • Journal Title

      Oral Health Prev Dent

      Volume: 21 Pages: 339-346

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of medication-induced xerostomia and effect of treatment2023

    • Author(s)
      Ito K, Izumi N, Funayama S, Nohno K, Katsura K, Kaneko N, Inoue M
    • Journal Title

      ProS One

      Volume: 18 Issue: 1 Pages: e0280224-e0280224

    • DOI

      10.1371/journal.pone.0280224

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical and Microbial Evaluation of Dental Caries Status and Associated Factors Among Primary Schoolchildren in Myanmar: A Cross-Sectional Study2023

    • Author(s)
      Thwin KM, Tun TZ, Kaneko N, Nohno K, Ogawa H
    • Journal Title

      Asia Pac J Public Health

      Volume: 35 Issue: 1 Pages: 42-49

    • DOI

      10.1177/10105395221139347

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of Interval Walking Training on Oral Health Status in Middle-Aged and Older Adults: A Case-Control Study2022

    • Author(s)
      Yoshimoto T, Hasegawa Y, Furihata M, Yoshihara A, Shiramizu M, Sta Maria MT, Hori S, Morikawa M, Marito P, Kaneko N, Nohno K, Nose H, Masuki S, Ono T
    • Journal Title

      Int J Environ Res Public Health

      Volume: 19 Issue: 21 Pages: 14465-14465

    • DOI

      10.3390/ijerph192114465

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anti-caries and anti-microbial effects of school-based fluoride programs in Myanmar school children2022

    • Author(s)
      Thwin KM, Lin WT, Kaneko N, Nohno K, Ogawa H
    • Journal Title

      Oral Health Prev Dent

      Volume: 20 Pages: 165-172

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Radiological imaging features of the salivary glands in xerostomia induced by an immune checkpoint inhibitor2021

    • Author(s)
      Katsura K, Funayama S, Ito K, Nohno K, Kaneko N, Takamura M, Soga M, Kobayashi T, Hayashi T
    • Journal Title

      Oral Radiol

      Volume: 37 Issue: 3 Pages: 531-536

    • DOI

      10.1007/s11282-020-00480-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interaction between and impact of IL-6 genotype and α-tocopherol levels on periodontal condition in aging individuals2020

    • Author(s)
      Yoshihara A, Kaneko N, Miyamoto A, Nohno K
    • Journal Title

      Journal of Periodontal Research

      Volume: 56 Pages: 139-146

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Oral Microbiome of Healthy Japanese People at the Age of 902020

    • Author(s)
      Nomura Y, Kakuta E, Kaneko N, Nohno K, Yoshihara A, Hanada N
    • Journal Title

      Applied Sciences

      Volume: 10 Pages: 6450-6450

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interaction between beta-3 adrenergic receptor genotype and environmental factors on periodontal progression2019

    • Author(s)
      Yoshihara A, Kaneko N, Nohno K, Iwasaki M
    • Journal Title

      J Clin Periodontol

      Volume: 46 Issue: 6 Pages: 623-630

    • DOI

      10.1111/jcpe.13115

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 口腔乾燥症臨床統計および自覚症状改善に関する因子探索2023

    • Author(s)
      伊藤加代子,船山さおり,濃野 要,金子 昇,井上 誠
    • Organizer
      令和5年度老年歯科医学会第34回学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 薬剤性口腔乾燥症患者の特性および治療による自覚症状改善に関する検討2022

    • Author(s)
      伊藤加代子,泉 直子,濃野 要,船山さおり,金子 昇,井上 誠
    • Organizer
      令和4年度老年歯科医学会第33回学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 地域在住高齢者における刺激唾液量の減少に関連する因子の探索 1年縦断調査2021

    • Author(s)
      濃野 要,金子 昇,伊藤加代子,船山さおり,葭原明弘,小川祐司
    • Organizer
      第70回日本口腔衛生学会・総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高齢者における血漿中抗Porphyromonas gingivalis抗体価と心房細動との関連2021

    • Author(s)
      星野剛志,金子 昇,葭原明弘,諏訪間加奈,小川祐司
    • Organizer
      令和3年度第1回新潟歯学会例会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高齢者における唾液中抗Streptococcus mutans特異抗体を用いた根面う蝕発生リスクの検討2021

    • Author(s)
      市川 優,金子 昇,濃野 要,小川祐司
    • Organizer
      令和3年度新潟歯学会第2回例会
    • Related Report
      2021 Research-status Report
  • [Presentation] Associations of Antibody Levels to Porphyromonas gingivalis and Atrial Fibrillation2020

    • Author(s)
      Hoshino T, Kaneko N, Yoshihara A, Suwama K, Ito Y, Tanaka J, Narita I, Ogawa H
    • Organizer
      34th Annual Scientific Meeting of the International Association for Dental Research (IADR) SEA
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Association between dry eye symptoms and periodontitis in community-dwelling elderly in Japan: A population-based crosssectional study2020

    • Author(s)
      Ichikawa Y, Kaneko N, Yamaga T, Yoshihara A, Suwama K, Odajima A, Minagawa K, Ogawa H
    • Organizer
      International Collaborative Symposium on Development of Human Resources in Practical Oral Health and Treatment
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2025-01-30  

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