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Role of central dopaminergic functions in regulation of plasma glucose levels

Research Project

Project/Area Number 17K07065
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurophysiology / General neuroscience
Research InstitutionHoshi University

Principal Investigator

Ikeda Hiroko  星薬科大学, 薬学部, 教授 (70297844)

Co-Investigator(Kenkyū-buntansha) 米持 奈央美  星薬科大学, 薬学部, 助手 (50779824)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords血糖調節 / ドパミン受容体 / 自律神経 / 糖尿病 / インスリン / グルカゴン / 視床下部 / ドパミン神経 / 中枢 / 肝糖産生
Outline of Final Research Achievements

The present study investigated the role of central dopaminergic functions in regulation of plasma glucose levels. Our results indicated that central dopamine D2 receptors regulate plasma glucose levels by regulating hepatic glucose production through autonomic nerves. In addition, regulation of plasma glucose levels by central dopamine D2 receptors was attenuated in type 1 diabetic mice. These results suggest that central dopaminergic functions play an important role in regulation of plasma glucose levels, and that this regulation is changed in diabetes mellitus.

Academic Significance and Societal Importance of the Research Achievements

糖尿病は、慢性的な高血糖状態により様々な合併症をひき起こすことから、その治療において血糖値を正常に保つことが重要である。糖尿病治療には様々な薬が用いられるが、その効果は十分ではなく、さらなる血糖調節機構の解明が必要である。本研究では新たな血糖調節機構として中枢神経に着目し、中枢のドパミン神経が血糖値を調節することを明らかにした。糖尿病の有病者数は多く、その改善が急務であることから、血糖調節機構の解明は新たな治療戦略に繋がり、社会的意義は高いと考える。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Products Report
  • Research Products

    (6 results)

All 2020 2018 2017

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

  • [Journal Article] Central dopamine D2 receptors regulate plasma glucose levels in mice through autonomic nerves2020

    • Author(s)
      Ikeda Hiroko、Yonemochi Naomi、Mikami Risa、Abe Manabu、Kawamura Meiko、Natsume Rie、Sakimura Kenji、Waddington John L.、Kamei Junzo
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 22347-22347

    • DOI

      10.1038/s41598-020-79292-0

    • Related Report
      Products Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 中枢神経による血糖調節2020

    • Author(s)
      池田弘子
    • Organizer
      第93回日本薬理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dopamine D2 receptors in the CNS regulate blood glucose levels through the sympathetic and parasympathetic nerves2018

    • Author(s)
      Hiroko Ikeda, Risa Mikami, Naomi Yonemochi, Junzo Kamei
    • Organizer
      18th World Congress of Basic and Clinical Pharmacology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中枢ドパミンD2受容体は自律神経を介して糖代謝を調節する2018

    • Author(s)
      池田弘子、三上理沙、米持奈央美、夏目理恵、阿部学、崎村健司、亀井淳三
    • Organizer
      Neuroscience 2018
    • Related Report
      2018 Research-status Report
  • [Presentation] 糖尿病治療を目指した中枢神経による血糖調節機構の理解2017

    • Author(s)
      池田弘子、米持奈央美、亀井淳三
    • Organizer
      第19回応用薬理シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 中枢のドパミンD2受容体を介した血糖調節機構2017

    • Author(s)
      三上理沙、池田弘子、米持奈央美、亀井淳三
    • Organizer
      第38回日本肥満学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-04-15  

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