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Studies on the relationship between brain function and gut microbiota determined by breast milk components

Research Project

Project/Area Number 17K19797
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Society medicine, Nursing, and related fields
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Nagaoka Kentaro  東京農工大学, (連合)農学研究科(研究院), 教授 (60376564)

Co-Investigator(Kenkyū-buntansha) 平山 和宏  東京大学, 大学院農学生命科学研究科(農学部), 教授 (60208858)
Research Collaborator Benno Yoshimi  
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords母乳 / 過酸化水素 / 腸内細菌叢 / 海馬 / 腸内細菌多様性 / ミエリン鞘 / 生理学 / 脳・神経 / 腸内細菌
Outline of Final Research Achievements

Gut microbiota is an essential for maintaining our health. In this study, we have found that hydrogen peroxide produced from amino acid metabolism in mouse milk is involved in the gut microbiota formation during infancy. The hydrogen peroxide plays a role as a gatekeeper against various bacteria that invade from the outside, and bacteria that show resistance to hydrogen peroxide such as Lactobacillus were preferentially established in the gut. It is expected that our data lead to the development of gut microbiota control using reactive oxygen species.

Academic Significance and Societal Importance of the Research Achievements

長い間、母乳育児が子の生体機能に有利に働くことが示唆されてきましたが、母乳成分による生化学的なメカニズムの存在は不明でした。また、ヒトやマウスも含め多くの動物において母乳が哺乳期間中の子の腸内細菌叢の多様性を抑えることが明らかとなっていますが、その生物学的な意義も不明です。本研究結果により、過酸化水素をはじめとした活性酸素を利用することで腸内細菌叢形成過程における菌の多様性を制御できる可能性が示され、さらにLAO1欠損マウスを用いることで乳児期の腸内細菌の多様性の違いが生後の生体機能にどのような影響を与えているかを調べることが可能となります。現在、脳機能や代謝機能など広く検討を行っています。

Report

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

    (12 results)

All 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 2 results) Remarks (2 results)

  • [Int'l Joint Research] Chinese Academy of Sciences(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Qatar Biomedical Research Institute(カタール)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Gut microbiota development in mice is affected by hydrogen peroxide produced from amino acid metabolism during lactation.2019

    • Author(s)
      Shigeno Y, Zhang H, Banno T, Usuda K, Nochi T, Inoue R, Watanabe G, Jin W, Benno Y, Nagaoka K
    • Journal Title

      FASEB J.

      Volume: 33 Issue: 3 Pages: 3343-3352

    • DOI

      10.1096/fj.201801462r

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ovarian progesterone suppresses depression and anxiety-like behaviors by increasing the Lactobacillus population of gut microbiota in ovariectomized mice2019

    • Author(s)
      Sovijit WN, Sovijit WE, Pu S, Usuda K, Inoue R, Watanabe G, Yamaguchi H, Nagaoka K
    • Journal Title

      Neurosci Res

      Volume: 印刷中 Pages: 76-82

    • DOI

      10.1016/j.neures.2019.04.005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of non-purified and semi-purified commercial diets on behaviors, plasma corticosterone levels, and cecum microbiome in C57BL/6J mice2018

    • Author(s)
      Toyoda A, Shimonishi H, Sato M, Usuda K, Ohsawa N, Nagaoka K
    • Journal Title

      Neurosci Lett

      Volume: 670 Pages: 36-40

    • DOI

      10.1016/j.neulet.2018.01.025

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hippocampal metabolism of amino acids by L-amino acid oxidase is involved in fear learning and memory2018

    • Author(s)
      Usuda K, Kawase T, Shigeno Y, Fukuzawa S, Fujii K, Zhang H, Tsukahara T, Tomonaga S, Watanabe G, Jin W, Nagaoka K
    • Journal Title

      Sci Rep

      Volume: 8 Issue: 1 Pages: 11073-11073

    • DOI

      10.1038/s41598-018-28885-x

    • NAID

      120006522881

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 雌ウマの発情周期中における腸内細菌叢の変化と性ホルモンとの関係2018

    • Author(s)
      外山晴香、村瀬晴崇、佐藤文夫、井上亮、渡辺元、永岡謙太郎
    • Organizer
      日本繁殖生物学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 泌乳期の母体と子を守る母乳中アミノ酸代謝について2018

    • Author(s)
      永岡謙太郎
    • Organizer
      日本乳房炎研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 哺乳期の母体と子を守る母乳中アミノ酸代謝について2018

    • Author(s)
      永岡謙太郎
    • Organizer
      日本栄養食糧学会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] アジアゾウ(Elephas maximus)の哺乳期における腸内細菌叢の形成と 母乳中成分の解析2017

    • Author(s)
      佐々木 優、河田 祐樹、金城 輝雄、川上 茂久、渡辺 元、友永 省三、 井上 亮、永岡 謙太郎
    • Organizer
      Hindgut 研究会
    • Related Report
      2017 Research-status Report
  • [Remarks] 母乳が赤ちゃんの腸内細菌叢を制御する機構の解明―過酸化水素が乳酸菌を増やす!?―

    • URL

      http://www.tuat.ac.jp/outline/disclosure/pressrelease/2018/20181115_01.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 獣医生理学研究室

    • URL

      http://web.tuat.ac.jp/~nvetphys/

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2017-07-21   Modified: 2020-03-30  

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