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Investigation on mechanisms of feeding-induced circadian phase adjustment

Research Project

Project/Area Number 17K15600
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field General medical chemistry
Research InstitutionYamaguchi University

Principal Investigator

Matsumura Ritsuko  山口大学, 時間学研究所, 助教(特命) (20728216)

Research Collaborator AKASHI makoto  山口大学, 時間学研究所, 教授
OKAMITSU rie  山口大学, 時間学研究所, 技術補佐員
SAWAI yuka  山口大学, 大学院
KAJIHARA kohei  山口大学, 大学院
SUMINO jyunko  山口大学, 時間学研究所, 技術補佐員
Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords概日時計 / 摂食 / 位相調節 / ペプチドホルモン / 内分泌物質 / 時計遺伝子
Outline of Final Research Achievements

Feeding induces phase resetting of peripheral circadian clock. In this study, we focused on feeding-regulated endocrine substances and aimed to identify the substances involved in the feeding-induced circadian phase adjustment. Two peptide hormones out of 10 we selected that are known to increase in blood concentration immediately after feeding had tissue-specific phase shift effects in ex vivo tissue culture method. The two peptides also showed circadian phase responsivity.

Academic Significance and Societal Importance of the Research Achievements

我々のこれまでの研究で、インスリンが特定の臓器や組織の概日時計の位相調節に関与することを明らかにしている。インスリン以外の他の内分泌系が関与している可能性に注目した本研究の成果は、概日時計における摂食刺激の作用機序の全体像を捉える端緒となり、概日時計に関する学術的な発展に大きく貢献し得る。概日時計と食事の関係は、食育・予防医学・健康科学などの幅広い分野で応用されている。メカニズムの理解が進むことによって、光環境などによる概日時計と生活(社会活動)との不調和に起因する体調不良や発病に対し、食による概日時計位相調節機能の強化といった応用に発展することが期待できる。

Report

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

    (5 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (1 results)

  • [Journal Article] Role of the clock gene Period3 in the human cell‐autonomous circadian clock2019

    • Author(s)
      Matsumura Ritsuko、Akashi Makoto
    • Journal Title

      Genes to Cells

      Volume: 24 Issue: 2 Pages: 162-171

    • DOI

      10.1111/gtc.12664

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Normal peripheral circadian phase in the old-old with abnormal circadian behavior2018

    • Author(s)
      Yamaguchi Ai、Tatsumoto Muneto、Matsumura Ritsuko、Endo Takuyuki、Hirata Koichi、Tokuda Isao、Akashi Makoto
    • Journal Title

      Genes to Cells

      Volume: 23 Issue: 10 Pages: 849-859

    • DOI

      10.1111/gtc.12633

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of the luteinizing hormone surge in the regulation of ovary and oviduct clock gene expression in mice2018

    • Author(s)
      Kobayashi Momoko、Watanabe Kaya、Matsumura Ritsuko、Anayama Nozomi、Miyamoto Akio、Miyazaki Hitoshi、Miyazaki Koyomi、Shimizu Takashi、Akashi Makoto
    • Journal Title

      Genes to Cells

      Volume: 23 Issue: 8 Pages: 649-657

    • DOI

      10.1111/gtc.12605

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Potential role of the pancreatic hormone insulin in resetting human peripheral clocks2018

    • Author(s)
      Kajimoto J, Matsumura R, Node K, Akashi M.
    • Journal Title

      Genes to Cells

      Volume: 23 Issue: 5 Pages: 393-399

    • DOI

      10.1111/gtc.12582

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] ノックアウト細胞株の表現型から考えるヒトPeriod3遺伝子の位置づけ2018

    • Author(s)
      松村律子、明石 真
    • Organizer
      日本時間生物学会
    • Related Report
      2018 Annual Research Report

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Published: 2017-04-28   Modified: 2020-03-30  

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