• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Examination of the hypothalamus and insular neurons as part of the eating regulation systems.

Research Project

Project/Area Number 21K07261
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 51020:Cognitive and brain science-related
Research InstitutionKagoshima University

Principal Investigator

Kusumoto Ikue  鹿児島大学, 医歯学域医学系, 助教 (80724757)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsInsular cortex / Hypothalamus / Appetite / Food / 食欲 / ストレス / 神経細胞 / 視床下部 / 刺激による細胞分別 / 摂食
Outline of Research at the Start

私たち誰もが持つ「食べたい」という欲望は、脳の中の神経回路によって形成されると考えられるが、その具体的な神経回路やメカニズムについては、まだ理解が乏しい。本研究では、これまでの研究で、摂食行動の調節に関与していることが示されている視床下部に着目し、遺伝子改変技術を応用することで、マウスが摂食に関連した行動を行っている瞬間に活動していた神経細胞を標的とすることで、視床下部-大脳皮質神経回路が果たす食欲調節における機能を明らかにすることを目的とする。

Outline of Final Research Achievements

It is widely believed that the desire to eat, inherent in all individuals, is shaped by neuronal circuits. However, the precise neuronal pathways and mechanisms underlying desire remain poorly understood. It has been known that the hypothalamus plays an important role in regulating eating behavior, and the insular cortex has been suggested to be involved in appetitive motivation.In this study, we have elucidated that correlated increases in both hypothalamus and insular cortex activities were observed during the food anticipatory period. Furthermore, animals require several repeated training sessions before they become able to predict food, and it has been confirmed that activity in these brain areas is enhanced as they undergo training.

Academic Significance and Societal Importance of the Research Achievements

摂食行動は、私たちが生きていくために適切に制御され継続される必要がある行動であるが、その行動を押し上げる意欲の重要性は、これまで注目されることが少なかった。本研究では、意欲が生じる神経メカニズムの解明につなげることを目標に、食べる意欲が高まっている瞬間をターゲットとし、主に組織学的に脳内の神経活動の変動を調べ、その性質を明らかにした。本研究で明らかにした、島皮質と視床下部の相関した神経活動は、今後、食欲の研究を進めていくにあたり、重要な研究対象であることを示すことができたと考えている。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (6 results)

All 2024 2023 2022

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (3 results)

  • [Journal Article] Orexin neurons play contrasting roles in itch and pain neural processing via projecting to the periaqueductal gray2024

    • Author(s)
      Kaneko Tatsuroh、Oura Asuka、Imai Yoshiki、Kusumoto-Yoshida Ikue、Kanekura Takuro、Okuno Hiroyuki、Kuwaki Tomoyuki、Kashiwadani Hideki
    • Journal Title

      Communications Biology

      Volume: 7 Issue: 1 Pages: 290-290

    • DOI

      10.1038/s42003-024-05997-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Activation of neurons in the insular cortex and lateral hypothalamus during food anticipatory period caused by food restriction in mice2023

    • Author(s)
      Ma Jihao、Yanase Sakurako、Udagawa Lisa、Kuwaki Tomoyuki、Kusumoto-Yoshida Ikue
    • Journal Title

      The Journal of Physiological Sciences

      Volume: 73 Issue: 1 Pages: 34-34

    • DOI

      10.1186/s12576-023-00892-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Activation of the rostral nucleus accumbens shell by optogenetics induces cataplexy-like behavior in orexin neuron-ablated mice2023

    • Author(s)
      Kawashima Shigetaka、Lou Fan、Kusumoto-Yoshida Ikue、Hao Liying、Kuwaki Tomoyuki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 2546-2546

    • DOI

      10.1038/s41598-023-29488-x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 痒みと痛みの制御における視床下部オレキシン神経の役割2024

    • Author(s)
      金子 達朗1, 大浦 飛鳥1, 楠本 郁恵1, 金蔵 拓郎2, 奥野 浩行3, 桑木 共之1, 柏谷 英樹1
    • Organizer
      第101回日本生理学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cortical and hypothalamic cooperation in the control of appetite2023

    • Author(s)
      Ikue Kusumoto
    • Organizer
      第100回生理学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Activation of insular cortex and lateral hypothalamus caused by food restriction in mice during food anticipatory period2022

    • Author(s)
      Ma Jihao, Sakurako Yanase, Lisa Udagawa, Tomoyuki Kuwaki and Ikue Kusumoto-Yoshida
    • Organizer
      第99回日本生理学会
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi