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Mechanisms of low protein adaptation in human populations

Research Project

Project/Area Number 19H03315
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45060:Applied anthropology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Umezaki Masahiro  東京大学, 大学院医学系研究科(医学部), 教授 (30292725)

Co-Investigator(Kenkyū-buntansha) 須田 亙  国立研究開発法人理化学研究所, 生命医科学研究センター, チームリーダー (20590847)
高安 伶奈  東京大学, 大学院医学系研究科(医学部), 助教 (20814833)
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)
冨塚 江利子  新潟薬科大学, 薬学部, 准教授 (90313098)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords栄養適応 / 低タンパク適応 / 腸内細菌 / ラオス / パプアニューギニア / インドネシア / たんぱく
Outline of Research at the Start

人類集団のなかには、タンパク摂取量が極端に少ないにもかかわらず、タンパク欠乏にともなう臨床症状をしめさないものがあることが知られている。これは、「低タンパク適応」と呼ばれ、代表者のグループは特に腸内細菌叢の役割に着目しながら、そのメカニズム解明を目指してきた。本申請課題では、これまで研究をすすめてきたパプアニューギニア高地に加えて、タンパク摂取量が少ないことが想定される2つの地域を対象に加えることにより、「低タンパク適応」メカニズムの固有性と普遍性を明らかにする。

Outline of Final Research Achievements

It is known that there are human populations who, despite having an extremely low protein intake, do not exhibit clinical symptoms associated with protein deficiency. This phenomenon is referred to as 'low-protein adaptation.' In this research project, we investigated the role of gut microbiota in nutritional adaptation by studying people living in the highlands of Papua New Guinea, as well as those residing in northern Laos and rural agricultural and fishing villages in Japan. Additionally, we examined the establishment of a protocol for the IAAO (Indicator Amino Acid Oxidation) method to evaluate individual protein requirements and conducted animal experiments by transplanting feces from 'low-protein model mice.'"

Academic Significance and Societal Importance of the Research Achievements

私たちが食べるものは、消化、吸収、代謝、排泄されることで、生命の維持に寄与している。本研究の成果は、このプロセスが消化管内に存在する細菌によって修飾されうること、すなわち、どのような腸内細菌をもつかによって、同じものを食べても個人の栄養状態・健康状態は違ったものになりうることを示すものである。腸内細菌による栄養の修飾は、自然の優先する社会に生きていた人類にとっては当たり前のものだったのかもしれない。現代社会に生きる人類が直面する健康問題のいくつかは、腸内細菌叢の栄養修飾にかかわる私たちの理解不足に起因するのではないか。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (29 results)

All 2024 2023 2021 2020 2019 Other

All Int'l Joint Research (9 results) Journal Article (9 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Book (4 results)

  • [Int'l Joint Research] Lao TPHI/NAFRI(ラオス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Universitas Padjadjaran(インドネシア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] PNGIMR(パプアニューギニア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Lao TPHI/NAFRI(ラオス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] パジャジャラン大学(インドネシア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ラオス熱帯医学公衆衛生研究所/ラオス農業研究所(ラオス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] パプアニューギニア医学研究所(パプアニューギニア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ラオス熱帯医学公衆衛生学研究所(ラオス)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] パジャジャラン大学(インドネシア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Asymptomatic Enteric Virus Infections and Association with the Gut Microbiome in Rural Residents of Northern Laos2024

    • Author(s)
      Sekiya Sae、Masuoka Hiroaki、Mizuno Yuki、Kibe Mihoko、Kosaka Satoko、Natsuhara Kazumi、Hirayama Kazuhiro、Inthavong Nouhak、Kounnavong Sengchanh、Tomita Shinsuke、Takayasu Lena、Suda Wataru、Yagyu Fumihiro、Umezaki Masahiro
    • Journal Title

      The American Journal of Tropical Medicine and Hygiene

      Volume: 110 Issue: 4 Pages: 759-767

    • DOI

      10.4269/ajtmh.23-0209

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Questionnaire Survey to Assess Motivations for Food Intake in Sundanese Communities in Indonesia, and an Assessment of the Applicability of the Questionnaire2023

    • Author(s)
      KOSAKA Satoko、SUDA Kazuhiro、GUNAWAN Budhi、UMEZAKI Masahiro
    • Journal Title

      Japanese Journal of Health and Human Ecology

      Volume: 89 Issue: 6 Pages: 171-183

    • DOI

      10.3861/kenko.89.6_171

    • ISSN
      2432-6712, 2432-6720
    • Year and Date
      2023-11-30
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Determinants of oxidative stress among indigenous populations in Northern Laos: Trace element exposures and dietary patterns2023

    • Author(s)
      Mizuno Yuki、Inaba Yohei、Masuoka Hiroaki、Kibe Mihoko、Kosaka Satoko、Natsuhara Kazumi、Hirayama Kazuhiro、Inthavong Nouhak、Kounnavong Sengchanh、Tomita Shinsuke、Umezaki Masahiro
    • Journal Title

      Science of The Total Environment

      Volume: 868 Pages: 161516-161516

    • DOI

      10.1016/j.scitotenv.2023.161516

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of modernization on oxidative stress among indigenous populations in northern Laos2023

    • Author(s)
      Mizuno Yuki、Inaba Yohei、Masuoka Hiroaki、Kibe Mihoko、Kosaka Satoko、Natsuhara Kazumi、Hirayama Kazuhiro、Inthavong Nouhak、Kounnavong Sengchanh、Tomita Shinsuke、Umezaki Masahiro
    • Journal Title

      American Journal of Biological Anthropology

      Volume: - Issue: 3 Pages: 352-363

    • DOI

      10.1002/ajpa.24722

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Transition to a market economy and chronic psychosocial stress in northern Laos: An exploratory study of urinary free cortisol in rural residents2023

    • Author(s)
      Kibe Mihoko、Mizuno Yuki、Masuoka Hiroaki、Kosaka Satoko、Natsuhara Kazumi、Hirayama Kazuhiro、Inthavong Nouhak、Kounnavong Sengchanh、Tomita Shinsuke、Umezaki Masahiro
    • Journal Title

      American Journal of Human Biology

      Volume: 36 Issue: 1

    • DOI

      10.1002/ajhb.23976

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Assessment of intra- and inter-assay variation in dried blood spot telomere length measurements by qPCR2021

    • Author(s)
      MIZUNO YUKI、HUR KYU、UMEZAKI MASAHIRO
    • Journal Title

      Anthropological Science

      Volume: 129 Issue: 1 Pages: 99-102

    • DOI

      10.1537/ase.2011301

    • NAID

      130008030437

    • ISSN
      0918-7960, 1348-8570
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The influences of low protein diet on the intestinal microbiota of mice2020

    • Author(s)
      Masuoka Hiroaki、Suda Wataru、Tomitsuka Eriko、Shindo Chie、Takayasu Lena、Horwood Paul、Greenhill Andrew R.、Hattori Masahira、Umezaki Masahiro、Hirayama Kazuhiro
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-020-74122-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gut microbiota composition in obese and non-obese adult relatives from the highlands of Papua New Guinea2020

    • Author(s)
      Jonduo Marinjho E、Wawae Lorry、Masiria Geraldine、Suda Wataru、Hattori Masahira、Takayasu Lena、Abdad Mohammad Y、Greenhill Andrew R、Horwood Paul F、Pomat William、Umezaki Masahiro
    • Journal Title

      FEMS Microbiology Letters

      Volume: 367 Issue: 19

    • DOI

      10.1093/femsle/fnaa161

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Health challenges of the Pacific region: Insights from history, geography, social determinants, genetics and the microbiome.2019

    • Author(s)
      Horwood PF, Tarantola A, Navarro S,Goarant C, Matsui M, Klement E, Umezaki M and Greenhill AR.
    • Journal Title

      Frontiers in Immunology

      Volume: Open acess

    • DOI

      10.3389/fimmu.2019.02184

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ラオス北部住民の重金属曝露と酸化ストレスとの関連.2021

    • Author(s)
      水野佑紀,増岡弘晃,木部未帆子,小坂理子,稲葉洋平,夏原和美,平山和宏,Sengchanh Kounnavong,富田晋介,梅崎昌裕.
    • Organizer
      第91回日本衛生学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] パプアニューギニア高地人の低タンパク適応2021

    • Author(s)
      梅﨑昌裕
    • Organizer
      第54回日本無菌生物ノートバイオロジー学会総会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 人類にとって「労働/朗働」とは何か2020

    • Author(s)
      梅﨑昌裕
    • Organizer
      第28回日本産業ストレス学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] ラオス北部住民の重金属類暴露と血圧との関連2020

    • Author(s)
      水野佑紀,増岡弘晃,木部未帆子,小坂理子,夏原和美,平山和宏,Nouhak Inthavong,Sengchanh Kounnavong,富田晋介,梅崎昌裕.
    • Organizer
      第31回日本微量元素学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 知られざるヒトの適応機構の解明:フィールドワークからの挑戦2019

    • Author(s)
      梅﨑昌裕
    • Organizer
      日本看護科学学会学術集会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ラオス北部山岳民の尿中ヒ素濃度と属性・生活習慣および血圧との関連2019

    • Author(s)
      水野佑紀,増岡弘晃,木部未帆子,小坂理子,夏原和美,平山和宏,Nouhak Inthavong,Sengchanh Kounnavong,富田晋介,梅崎昌裕
    • Organizer
      ヒ素シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Adaptation to low-protein diet induced by transplantation of human microbiota in germfree mice.2019

    • Author(s)
      Hiroaki Masuoka, Masahiro Umezaki, Wataru Suda, Lena Takayasu, Eriko Tomitsuka, Paul Horwood, Andrew Greenhill, Masahira Hattori, Kazuhiro Hirayama.
    • Organizer
      Cold Spring Harbor Laboratory Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] 微生物との共生 : パプアニューギニア高地人の適応システム2023

    • Author(s)
      梅﨑昌裕
    • Total Pages
      234
    • Publisher
      京都大学出版会
    • ISBN
      9784814004607
    • Related Report
      2022 Annual Research Report
  • [Book] 微生物との共生2023

    • Author(s)
      梅﨑 昌裕
    • Total Pages
      240
    • Publisher
      京都大学学術出版会
    • ISBN
      9784814004607
    • Related Report
      2021 Annual Research Report
  • [Book] 人間の本質にせまる科学2021

    • Author(s)
      井原泰雄、梅﨑昌裕、米田穣
    • Total Pages
      296
    • Publisher
      東京大学出版会
    • ISBN
      4130622285
    • Related Report
      2020 Annual Research Report
  • [Book] オセアニアで学ぶ人類学2020

    • Author(s)
      梅崎昌裕, 風間計博
    • Total Pages
      304
    • Publisher
      昭和堂
    • ISBN
      9784812220054
    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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