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Association between periodontal disease and development of cognitive impairment in community-dwelling elderly people

Research Project

Project/Area Number 15K08814
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hygiene and public health
Research InstitutionHyogo University of Teacher Education (2017-2018)
Nara Medical University (2015-2016)

Principal Investigator

Okamoto Nozomi  兵庫教育大学, 学校教育研究科, 准教授 (70364057)

Co-Investigator(Kenkyū-buntansha) 車谷 典男  奈良県立医科大学, 医学部, 副学長 (10124877)
森川 将行  奈良県立医科大学, 医学部, 研究員 (30305726)
須崎 康恵  奈良県立医科大学, 医学部, 講師 (30382302)
水野 文子  奈良県立医科大学, 医学部, 講師 (70271202)
金子 昇  新潟大学, 医歯学系, 助教 (00397126)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords高齢者 / 認知機能障害 / 歯周病 / 多数歯欠損 / 歯の本数 / 咀嚼力 / 認知機能 / 低体重 / 低栄養 / APOE4
Outline of Final Research Achievements

Among participants of the epidemiological survey (longitudinal study) conducted in 2012 and 2017, cognitive function test Mini-Mental State Examination (MMSE) 23 points or less (46 people with cognitive impairment) and 24 points or more (78 healthy people) were included in the subjects of this study, with an average age of 76. After adjusting the influence of cerebrovascular disease, myocardial infarction, hypertension, diabetes, dyslipidemia, APOE ε4 allele, various serum antibody titers, high sensitivity CRP, serum albumin by logistic regression analysis, The odds ratio of one tooth loss to MMSE 23 or less was significantly related at 1.06 (95% CI; 1.01-1.11, P = 0.030).

Academic Significance and Societal Importance of the Research Achievements

Gatzらの一卵性双生児の症例対照研究やカトリック教会の修道女を対象としたコホート研究において、多数歯欠損がアルツハイマー病やその他の認知症と有意な関連があることが報告されている。我々の藤原京スタディでは多数歯残存者に比べ、歯が残っていない者では認知症領域のリスクが2.2倍に上昇することを報告している。MMSE点数と4菌種の歯周病原細菌との間に有意な関連はなく、ロジスティック回帰分析でも歯周病原細菌の血清抗体価はMMSE点数に対して有意な関連を示さなかったが、歯周病の指標として、採血時点での血清抗体価よりも歯周病の終末状態としての多数歯欠損のほうが適していることが示唆された。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (33 results)

All 2019 2018 2017 2016 2015

All Journal Article (11 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 11 results,  Open Access: 10 results,  Acknowledgement Compliant: 4 results) Presentation (22 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] Relationship between tooth loss, low masticatory ability, and nutritional indices in the elderly: a cross-sectional study2019

    • Author(s)
      Okamoto N, Amano N, Nakamura T, Yanagi M.
    • Journal Title

      BMC Oral Health

      Volume: Accepted:29 April 2019 Issue: 1

    • DOI

      10.1186/s12903-019-0778-5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hyperglycemic status is associated with an elevated risk of osteoporotic fracture in community-dwelling elderly Japanese men: The Fujiwara-kyo osteoporosis risk in men (FORMEN) cohort study.2019

    • Author(s)
      Iki M, Fujita Y, Kouda K, Yura A, Tachiki T, Tamaki J, Sato Y, Moon JS, Hamada M, Kajita E, Okamoto N, Kurumatani N.
    • Journal Title

      Bone.

      Volume: 121 Pages: 100-106

    • DOI

      10.1016/j.bone.2019.01.005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of cataract surgery on cognitive function in elderly: Results of Fujiwara-kyo Eye Study.2018

    • Author(s)
      Miyata K, Yoshikawa T, Morikawa M, Mine M, Okamoto N, Kurumatani N, Ogata N.
    • Journal Title

      PLoS One.

      Volume: 13 Issue: 2 Pages: e0192677-e0192677

    • DOI

      10.1371/journal.pone.0192677

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ratio of Endogenous Secretory Receptor for Advanced Glycation End Products to Pentosidine Predicts Fractures in Men.2018

    • Author(s)
      Tamaki J, Kouda K, Fujita Y, Iki M, Yura A, Miura M, Sato Y, Okamoto N, Kurumatani N.
    • Journal Title

      J Clin Endocrinol Metab.

      Volume: 103 Issue: 1 Pages: 85-94

    • DOI

      10.1210/jc.2017-00929

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hyperglycemia is associated with increased bone mineral density and decreased trabecular bone score in elderly Japanese men: The Fujiwara-kyo osteoporosis risk in men (FORMEN) study. Iki2017

    • Author(s)
      Iki M, Fujita Y, Kouda K, Yura A, Tachiki T, Tamaki J, Winzenrieth R, Sato Y, Moon JS, Okamoto N, Kurumatani N.
    • Journal Title

      Bone.

      Volume: 105 Pages: 18-25

    • DOI

      10.1016/j.bone.2017.08.007

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prevalence of chronic obstructive pulmonary disease in independent community-dwelling older adults: The Fujiwara-kyo study.2017

    • Author(s)
      Yoshikawa M, Yamamoto Y, Tomoda K, Fujita Y, Yamauchi M, Osa T, Uyama H, Okamoto N, Kurumatani N, Kimura H.
    • Journal Title

      Geriatr Gerontol Int.

      Volume: 17 Issue: 12 Pages: 2421-2426

    • DOI

      10.1111/ggi.13091

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cataract Surgery and Visual Acuity in Elderly Japanese: Results of Fujiwara-kyo Eye Study.2017

    • Author(s)
      Miyata K, Yoshikawa T, Mine M, Nishi T, Okamoto N, Ueda T, Kawasaki R, Kurumatani N, Ogata N.
    • Journal Title

      Biores Open Access.

      Volume: 6 Issue: 1 Pages: 28-34

    • DOI

      10.1089/biores.2017.0007

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of tooth loss and the apolipoprotein E ε4 allele on mild memory impairment in the Fujiwara-kyo study of Japan: a nested case-control study2017

    • Author(s)
      Nozomi Okamoto, Masayuki Morikawa, Nobuko Amano, Motokazu Yanagi, Shin Takasawa, Norio Kurumatani
    • Journal Title

      J Alzheimers Dis.

      Volume: 55 Issue: 2 Pages: 569-574

    • DOI

      10.3233/jad-160638

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] 自立高齢者における歯の喪失と嚥下障害・血清アルブミン・全死亡との関連:藤原京スタディ2016

    • Author(s)
      岡本希,森川将行,小松雅代,車谷典男
    • Journal Title

      未病と抗老化

      Volume: 25 Pages: 28-33

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Association of tooth loss with development of swallowing problems in community-dwelling independent elderly: The Fujiwara-kyo study.2015

    • Author(s)
      Okamoto N, Morikawa M, Yanagi M, Amano N, Tomioka K, Hazaki K, Harano A, Kurumatani N.
    • Journal Title

      The Journals of Gerontology Series A: Medical Science

      Volume: 70 Issue: 12 Pages: 1548-1554

    • DOI

      10.1093/gerona/glv116

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Self-Reported Hearing Loss Predicts 5-Year Decline in Higher-Level Functional Capacity among the High-Functioning Elderly: The Fujiwara-Kyo Study.2015

    • Author(s)
      Tomioka K, Okamoto N, Morikawa M, Kurumatani N.
    • Journal Title

      J Am Geriatr Soc

      Volume: 63 Issue: 11 Pages: 2260-2268

    • DOI

      10.1111/jgs.13780

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 自立高齢者において多数歯欠損と喫煙歴は血清アルブミン低値に関連している2019

    • Author(s)
      岡本希,天野信子,柳元和.
    • Organizer
      第29回日本疫学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 自立高齢者における多数歯欠損と咀嚼可能食品と栄養指標との関連2019

    • Author(s)
      岡本希,天野信子,柳元和.
    • Organizer
      第89回日本衛生学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Gastrectomy is associated with increased risk of osteoporotic fracture in community-dwelling elderly men 20 years or more after the surgery: the Fujiwara-kyo osteoporosis Risk in Men (FORMEN) Cohort Study2019

    • Author(s)
      Iki M, Fujita Y, Kouda K, et al.
    • Organizer
      ESTS2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationships between tooth loss, low masticatory ability, and nutritional indices in independent elderly people: Findings from the Fujiwara-kyo study in Japan2019

    • Author(s)
      Okamoto N, Amano N, Nakamura T, Yanagi M.
    • Organizer
      ISPRM2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地域高齢者における胃切除後の骨折リスク上昇-藤原京スタディ2019

    • Author(s)
      伊木雅之,藤田裕規,甲田勝康,他.
    • Organizer
      第39回日本骨形態計測学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cystain-c-based eGFR predicted osteoporotic fracture risk but creatinine-based eGFR did not in community-dwelling elderly Japanese men: the Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) Cohort Study2019

    • Author(s)
      Iki M, Fujita Y, Kouda K, et al.
    • Organizer
      ASBMR2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] システインCに基づくeGFR低値は骨粗鬆症性骨折リスク上昇と関連したが、クレアチニンに基づくeGFRは関連しなかった-藤原京スタディ男性骨粗鬆症コホート研究-2019

    • Author(s)
      伊木雅之,藤田裕規,甲田勝康,他.
    • Organizer
      第21回日本骨粗鬆学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Association between the frequency of Foods and dishes and cognitive function in elderly: Results of Fujiwara-kyo Study2018

    • Author(s)
      Amano N, Nakamura T, Okamoto N.
    • Organizer
      BIT's 7th Annual World Congress of Food and Nutrition 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 自立高齢者における残存歯数と咀嚼可能食品群と血清アルブミンとの関連2018

    • Author(s)
      岡本希 他.
    • Organizer
      2018年3月日本衛生学会第88回学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 地域在住高齢者における教育歴と認知機能とのの関連:藤原京スタディ2017

    • Author(s)
      岡本希、森川将行、天野信子、柳元和、高沢伸、車谷典男
    • Organizer
      第27回日本疫学会学術総会
    • Place of Presentation
      甲府
    • Year and Date
      2017-01-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Hyperglycemia was associated with elevated risk of fracture but history of diabetes was not in Japanese elderly men2017

    • Author(s)
      Iki Masayuki, et al.
    • Organizer
      2017年国際疫学会
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高齢期における認知機能障害の発生リスクと低学歴との関連について:藤原京スタディ2017

    • Author(s)
      岡本希 他.
    • Organizer
      2017年10月日本公衆衛生学総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 教育歴と高齢期の認知機能障害との関連:教育格差と疾病についての前向きコホート研究2017

    • Author(s)
      岡本希 他.
    • Organizer
      2017年11月学校保健学会第64回学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 地域在住高齢者の認知機能低下への身体機能の影響:藤原京スタディ2017

    • Author(s)
      森川将行 他.
    • Organizer
      2017年6月第32回日本老年精神医学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 高血糖状態と骨粗鬆症性骨折リスク-藤原京スタディ男性骨粗鬆症コホート研究-2017

    • Author(s)
      伊木雅之 他.
    • Organizer
      2017年10月日本公衆衛生学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] スポーツと文化的趣味活動の組み合わせとADL低下との縦断的関連-藤原京スタディ-2017

    • Author(s)
      小松雅代 他.
    • Organizer
      2017年10月日本公衆衛生学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 歯の喪失の嚥下障害・血清アルブミン低値・全死亡への影響 :藤原京スタディ2016

    • Author(s)
      岡本希
    • Organizer
      第75回日本公衆衛生学会総会
    • Place of Presentation
      大阪
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
  • [Presentation] Association between educational background and cognitive function in the elderly: the Fujiwara-kyo study2016

    • Author(s)
      Nozomi Okamoto, Masayuki Morikawa, Shin Takasawa, Norio Kurumatani
    • Organizer
      International Society for Environmental Epidemiology and International Society of Exposure Science-Asia Chapter Conference 2016
    • Place of Presentation
      Sappro, Japan
    • Year and Date
      2016-06-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Tooth loss, APOE ε4 allele, and risk of mild memory impairment in the Fujiw ara-kyo study of Japan2016

    • Author(s)
      Nozomi Okamoto
    • Organizer
      The 12th Asian Academy of Preventive Dentistry
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2016-05-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The effects of tooth loss and APOE ε4 allele on mild memory impairment in the Fujiwara-kyo study of Japan2016

    • Author(s)
      Nozomi Okamoto, Masayuki Morikawa, Shin Takasawa, Norio Kurumatani
    • Organizer
      The 13th International Congress of Human Genetics 2016
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-04-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 軽度認知機能障害に対する歯牙喪失とAPOE ε4 allele の影響について:藤原京スタディ2016

    • Author(s)
      岡本希、森川将行、車谷典男
    • Organizer
      第26回日本疫学会学術総会
    • Place of Presentation
      米子
    • Year and Date
      2016-01-23
    • Related Report
      2015 Research-status Report
  • [Presentation] 歯牙喪失と軽度認知機能障害とApoE4について前向きコホート研究:藤原京スタディ2015

    • Author(s)
      岡本希、森川将行、柳元和、天野信子、小松雅代、冨岡公子、車谷典男
    • Organizer
      第74回日本公衆衛生学会総会
    • Place of Presentation
      長崎
    • Year and Date
      2015-11-06
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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