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Mechanism of maintenance of learning and memory by mastication

Research Project

Project/Area Number 16K11608
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Prosthodontics/ Dental materials science and
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

Toyoshita Yoshifumi  北海道医療大学, 歯学部, 准教授 (20399900)

Co-Investigator(Kenkyū-buntansha) 會田 英紀  北海道医療大学, 歯学部, 教授 (10301011)
川西 克弥  北海道医療大学, 歯学部, 講師 (10438377)
佐々木 みづほ  北海道医療大学, 歯学部, 助教 (70638410)
越野 寿  北海道医療大学, 歯学部, 教授 (90186669)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords咀嚼 / 学習記憶機能 / BDNF / CREB
Outline of Final Research Achievements

It is reported that mastication promotes and maintains learning and memory. When mastication is conducted, central nerve and oral area transmit information each other mainly through trigeminal nerve. Although it is expected that the information spread to various area in cerebral cortex, the mechanism is not clear. In this research, it is suggested that expression of gene that is involved with memory is promoted in cerebral cortex after mastication.

Academic Significance and Societal Importance of the Research Achievements

認知症は加齢とともに発症率が増加する疾患で、超高齢社会を迎えた日本において、患者数の増加が問題となっている。根本的な治療方法はなく、発症の予防、進行の抑制が主たる対応方法となる。認知症によって脳機能が障害され、さまざまな症状を呈するが、記憶機能低下もその一つである。本研究の結果から、咀嚼は学習記憶機能に関与する遺伝子の発現に寄与していることから、口腔機能の改善および維持が認知症の抑制に有効である可能性が考えられる。

Report

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

    (5 results)

All 2018 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] マウスにおける咀嚼動態の相違がGLP-1分泌に与える影響2017

    • Author(s)
      菅悠希 豊下祥史 佐々木みづほ 川西克弥 會田英紀 越野 寿
    • Journal Title

      日本咀嚼学会雑誌

      Volume: 27 Pages: 72-29

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Effects of Mastication by Each Organs on Expression of Apo E2018

    • Author(s)
      Yoshifumi Toyoshita, Yuki Kan, Yosuke Takeda, Mizuho Sasaki, Katsuya Kawanishi, Hisashi Koshino
    • Organizer
      42nd Annual Conference of the European Prosthodontic Association and EPA-SEPES Joint Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mastication Promotes Expression of Some Memory-Related Genes in the Cerebral Cortex2018

    • Author(s)
      Yoshifumi Toyoshita, Yuki Kan, Yosuke Takeda, Mizuho Sasaki, Katsuya Kawanishi, Hisashi Koshino
    • Organizer
      The 11th Biennial Congress of Asian Academy of Prosthodontics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 飼料性状の違いによる咀嚼動態の相違が膵β細胞に与える影響2017

    • Author(s)
      菅 悠希,豊下祥史,佐々木みづほ ,川西克弥 ,會田英紀,安斎 隆,寺沢秀朗,玉城均,越野寿
    • Organizer
      第126回日本補綴歯科学会学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 健常マウスにおける飼料性状の違いによるGLP-1の変化2016

    • Author(s)
      菅 悠希、豊下祥史、佐々木みづほ、川西克弥、會田英紀、山中隆裕、芦田眞治、小西洋次、高崎英仁、伊東由紀夫、越野 寿
    • Organizer
      公益社団法人日本補綴歯科学会第125回学術大会
    • Place of Presentation
      石川県金沢市
    • Year and Date
      2016-07-08
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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