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The influence of westernization of the dietary habits on the biological function via the change of body cysteine status.

Research Project

Project/Area Number 17K00925
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Eating habits
Research InstitutionKanagawa University of Human Services

Principal Investigator

Yamanishi Rintaro  神奈川県立保健福祉大学, 保健福祉学部, 教授 (30253206)

Co-Investigator(Kenkyū-buntansha) 向井 友花  神奈川県立保健福祉大学, 保健福祉学部, 教授 (60331211)
Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords栄養 / 食品成分 / 抗酸化 / グルタチオン / システイン / メチオニン / ビタミンA / 単球・マクロファージ / マクロファージ / 単球 / 酸化還元状態 / レチノール / マウス摂食実験 / 和食 / 西洋化食 / システイン代謝物 / 電気化学検出器 / マウス血清 / たんぱく質 / 脂肪 / マウス / 栄養学 / 食品 / 免疫
Outline of Final Research Achievements

Low-protein diets decreased glutathione (GSH) levels in mouse kidney cells and other organs, and these levels were further decreased under the low-protein and low vitamin B6 condition. When cysteine (Cys) was added to the diet, GSH levels recovered, but when methionine (Met) was added, GSH levels declined. Under conditions that prevented Cys synthesis, between the addition of Cys (Japanese diet model) and that of lard and Met (Western diet model), blood glucose levels were significantly higher and lipid peroxidation levels were higher in the latter. When the effects of vitamin A were examined in cultured monocyte-macrophage cells, addition of retinol or β-carotene to the culture medium increased the amount of intracellular GSH, but addition of retinoic acid did not. The intracellular redox state shifted toward the reduction side when the amount of intracellular GSH was higher.

Academic Significance and Societal Importance of the Research Achievements

食品成分が、主に生体内の抗酸化物質グルタチオン(GSH)量に及ぼす影響について検討した。西洋化食は、植物たんぱく質の摂取割合が高い和食と比べ、畜肉たんぱく質の摂取割合が高く含硫アミノ酸が不足しやすい。後者では脂肪の摂取量も多くなる。本研究において、含硫アミノ酸の一種であるシステインの摂取不足がGSH不足をもたらした。また、西洋化食モデルが血糖値や生体酸化還元に悪影響をもたらした。試験管レベルでは、ビタミンA不足が細胞内GSH量不足を招くことを示した。生体の酸化は、様々な疾患や老化をもたらす危険性があるため、健康を維持するには、たんぱく質の質やビタミンA摂取に留意する必要があることが示唆された。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2022 2020 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Retinol but not retinoic acid can enhance the glutathione level in a murine cultured macrophage cell line as well as β-carotene.2018

    • Author(s)
      Yuuka Mukai, Rintaro Yamanishi
    • Journal Title

      Food Science and Nutrition

      Volume: 6 Issue: 6 Pages: 1650-1656

    • DOI

      10.1002/fsn3.726

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] レチノールは単球・マクロファージ系培養細胞内のグルタチオン量を増加させる2022

    • Author(s)
      山西倫太郎、山西理加
    • Organizer
      第76回 日本栄養・食糧学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 飼料の含硫アミノ酸の違いがマウスの酸化ストレスに及ぼす影響2020

    • Author(s)
      向井友花、山西倫太郎
    • Organizer
      日本栄養改善学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Retinol as well as β-carotene can enhance glutathione level in cultured murine RAW264 macrophages independent of retinoic acid signaling pathway2019

    • Author(s)
      Rintaro Yamanishi,Yuuka Mukai
    • Organizer
      ICoFF 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 特定のビタミンB群摂取条件下において実験食に添加される含硫アミノ酸と脂肪量の変化がマウス免疫系に及ぼす影響の検討2018

    • Author(s)
      山西倫太郎
    • Organizer
      日本栄養・食糧学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 食餌の栄養組成や成分量の違いが生体組織のGSH量に及ぼす影響2017

    • Author(s)
      向井 友花、山西 倫太郎
    • Organizer
      第71回 日本栄養・食糧学会大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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