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Elucidating the physiology of nesfatin-1-expressing neurons in feeding suppression in rats

Research Project

Project/Area Number 19K21248
Project/Area Number (Other) 18H06133 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 0802:Biomedical structure and function and related fields
Research InstitutionUniversity of Occupational and Environmental Health, Japan

Principal Investigator

SAITO Reiko  産業医科大学, 医学部, 助教 (80525353)

Project Period (FY) 2018-08-24 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsNesfatin-1 / 摂食行動 / nesfatin-1 / kisspeptin
Outline of Research at the Start

nesfatin-1は摂食抑制作用をもつペプチドである。このペプチドと他の摂食抑制効果のある物質との関連性を検討した。キスぺプチンにも摂食を抑制する効果があるが、キスぺプチンの摂食抑制の脳内の経路の一部にnesfatin-1が関連することを確認した。その他の物質とnesfatin-1の関連を今後検討することにより、nesfatin-1が新たな抗肥満治療につながることが期待される。

Outline of Final Research Achievements

The anorectic neuropeptide nesfatin-1 directly activates oxytocin neurons in the hypothalamus, a feeding control center in the brain. This discovery has revealed a potential pathway involved in feeding suppression. Nesfatin-1-expressing neurons are widely distributed in the central nervous system, but their physiological properties are currently unknown.
In this study, we found that nesfatin-1-expressing neurons in the rat hypothalamus were activated by the administration of anorectic peptide. This feeding suppressant effect was significantly attenuated by nesfatin-1 antisense. These results suggest that nesfatin-1 may be involved in the regulation of feeding suppression in rats.

Academic Significance and Societal Importance of the Research Achievements

本研究において、摂食抑制効果のある物質の抑制経路に、Nesfatin-1が関連していることが明らかとなった。Nesfatin-1はレプチン抵抗性を示す肥満患者においてもその摂食抑制作用を発揮するため、Nesfatin-1の摂食調節における役割を明らかにすることにより、新たな肥満治療につながる可能性があり、今後の摂食経路および肥満治療の開発のために意義深い結果であると考える。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • Research Products

    (2 results)

All 2020 2019

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results)

  • [Journal Article] Expression of hypothalamic feeding-related peptide genes and neuroendocrine responses in an experimental allergic encephalomyelitis rat model.2020

    • Author(s)
      Tanaka K, Saito R, Sanada K, Nishimura H, Nishimura K, Sonoda S, Ueno H, Motojima Y, Matsuura T, Yoshimura M, Maruyama T, Onaka T, Yamamoto Y, Kusuhara K, Ueta Y.
    • Journal Title

      Peptides

      Volume: - Pages: 170313-170313

    • DOI

      10.1016/j.peptides.2020.170313

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Centrally administered kisspeptin suppresses feeding via nesfatin-1 and oxytocin in male rats2019

    • Author(s)
      Saito Reiko、Tanaka Kentaro、Nishimura Haruki、Nishimura Kazuaki、Sonoda Satomi、Ueno Hiromichi、Motojima Yasuhito、Yoshimura Mitsuhiro、Maruyama Takashi、Yamamoto Yukiyo、Kusuhara Koichi、Ueta Yoichi
    • Journal Title

      Peptides

      Volume: 112 Pages: 114-124

    • DOI

      10.1016/j.peptides.2018.12.003

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2018-08-27   Modified: 2024-03-26  

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