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Estimation of involvement of vagus nerve in physiological activity of flavonoids

Research Project

Project/Area Number 17K07808
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Food science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Hashimoto Naoto  国立研究開発法人農業・食品産業技術総合研究機構, 食品研究部門, 上級研究員 (20414758)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords迷走神経 / 肥満 / 非アルコール性脂肪肝症 / アディポネクチン / レプチン / 脱共役タンパク質-1 / 胆石形成飼料 / 脂肪肝 / 迷走神経肝分枝 / 黒大豆色素抽出物 / ラット / マウス / 食餌効率 / インスリン感受性 / 栄養生理学 / フラボノイド / 神経
Outline of Final Research Achievements

In rats fed a high fat diet with black soybean extract, containing abundant flavonoids, the ratio of body weight gains to total food intake was lowered in comparison with those fed a high fat diet, and expression of uncoupling protein-1 that promotes expenditure of fatty acids tended to be reduced in brown adipose tissue, in which hepatic branch of vagus nerve (HBVN) may be involved.
In rats fed a high fructose diet that possibly induces non-alcoholic fatty liver disease (NAFLD), blood levels of leptin and adiponectin were lowered, which was cancelled in hepatic vagotomy rats. These results indicate that HBVN was also involved in regulation of blood adipokine levels.

Academic Significance and Societal Importance of the Research Achievements

農作物に多く含まれるフラボノイドの肥満抑制作用とその作用機構を明らかにすることにより、農作物摂取の促進を通じた健康増進が期待できる。また、フラボノイドの生理作用発現において神経系の関与を明らかにしたことにより、フラボノイドの血中濃度に左右されずに健康機能性を発現できることが考えられる。このことは、フラボノイドの生理作用の研究を加速させ、さらに健康増進に貢献する。
また、非アルコール性脂肪肝症(NAFLD)は様々な生活習慣病の発症に関与していると考えられていることから、NAFLD発症のメカニズムや生活習慣病のと相互作用メカニズムを明らかにすることで、国民の健康増進に貢献する。

Report

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

    (2 results)

All 2019

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

  • [Journal Article] Involvement of the hepatic branch of the vagus nerve in the regulation of plasma adipokine levels in rats fed a high-fructose diet2019

    • Author(s)
      Hashimoto Naoto、Wakagi Manabu、Ippoushi Katsunari、Takano-Ishikawa Yuko
    • Journal Title

      The Journal of Nutritional Biochemistry

      Volume: 71 Pages: 90-97

    • DOI

      10.1016/j.jnutbio.2019.06.003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Neural regulation of plasma adipokine levels in rats fed excessive fructose2019

    • Author(s)
      Naoto Hashimoto, Manabu Wakagi, Katsunari Ippoushi, Yuko Takano-Ishikawa
    • Organizer
      The 7th International Conference on Food Factors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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