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Evaluation of organ accumulation and metabolism of 1-deoxynojirimycin by long-term administration

Research Project

Project/Area Number 19K05874
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Kimura Toshiyuki  国立研究開発法人農業・食品産業技術総合研究機構, 高度分析研究センター, 主席研究員 (70355303)

Co-Investigator(Kenkyū-buntansha) 仲川 清隆  東北大学, 農学研究科, 教授 (80361145)
山岸 賢治  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 (80355304)
高須 蒼生  岐阜薬科大学, 薬学部, 助教 (60908458)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords1-デオキシノジリマイシン / アザ糖 / 安全性 / 安定同位体ラベル / 長期投与 / DNJ / 動態、吸収 / 安定同位体ラベル化 / 吸収・代謝 / 組織蓄積 / ラベル化
Outline of Research at the Start

アザ糖(イミノ糖)である1-デオキシノジリマイシン(DNJ)は桑葉や大豆発酵食品などに含まれ、強力なαグルコシダーゼ阻害作用を有し、糖尿病予防、治癒効果を有する食品成分として期待されている。DNJが機能性食材として活用されるためには安全性と効能発現メカニズムを科学的に検証する必要があるが、安全性の研究はほとんど行われていない。これまでの研究によりDNJの一部は体内に吸収され、速やかに尿中に排出されるが、組織にも移行することが分かっている。このため、本研究ではDNJの長期摂取における組織蓄積と代謝の解析を行い、安全性の評価を行う。

Outline of Final Research Achievements

1-Deoxynojirimycin (DNJ) is a natural occurring potent a-glucosidase inhibitor containing in mulberry leaves or some soybean fermented food. DNJ reduces the elevation of postprandial glycemic response after meal. Therefore, DNJ is expected to prevent diabetes and various mulberry leaf related foods have been developed and currently available for the market in Japan. Whereas there have been many reports of efficacy of DNJ, few reports of safety. So, it required to clarify absorption kinetics of DNJ. In this study, we orally administered high purified 15N-labelled DNJ to rats and measured 15N content in urine, feces, and organs. The results showed that approximately 80% or more 15N was recovered from urine and feces and was not detected in organs. Then, 3 month-administration study of 15N-labelled DNJ was performed to evaluate organ accumulation. The data is being analyzed.

Academic Significance and Societal Importance of the Research Achievements

1-デオキシノジリマイシン(DNJ)は桑葉や大豆発酵食品などに含まれる天然の機能性成分であり、食後の血糖値の上昇を抑制する。2018年度に機能性表示食品の関与成分として表示が認められたことから、DNJの機能性食品は現在、市場販売されており、今後さらに商品が出てくると思われる。DNJはある程度体内に吸収されるが、その後の排出や組織への蓄積や影響はほとんど研究知見がない。このため、DNJの安全性と機能性メカニズムを解明することで国民に安心して提供できることが期待される。これにより、糖尿病の予防する食事の提言が可能となる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2022 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Inhibition of α‐amylase and α‐glucosidase by <i>Morus australis</i> fruit extract and its components iminosugar, anthocyanin, and glucose2022

    • Author(s)
      Qiao Ying、Ikeda Yuki、Ito Masaaki、Kimura Toshiyuki、Ikeuchi Takeaki、Takita Teisuke、Yasukawa Kiyoshi
    • Journal Title

      Journal of Food Science

      Volume: 87 Issue: 4 Pages: 1672-1683

    • DOI

      10.1111/1750-3841.16098

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibitory effect of Morus australis leaf extract and its component iminosugars on intestinal carbohydrate-digesting enzymes2021

    • Author(s)
      Ying Qiao, Masaaki Ito, Toshiyuki Kimura, Takeaki Ikeuchi, Teisuke Takita, Kiyoshi Yasukawa
    • Journal Title

      Journal of Bioscience and Bioengineering

      Volume: 132 Issue: 3 Pages: 226-233

    • DOI

      10.1016/j.jbiosc.2021.05.005

    • NAID

      40022687960

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation and development of a novel pre-treatment method for mulberry leaves to enhance their bioactivity <i>via</i> enzymatic degradation of GAL-DNJ to DNJ2021

    • Author(s)
      Takasu Soo、Parida Isabella Supardi、Kojima Yoshihiro、Kimura Toshiyuki、Nakagawa Kiyotaka
    • Journal Title

      Food &amp; Function

      Volume: 12 Issue: 24 Pages: 12250-12255

    • DOI

      10.1039/d1fo02307a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intestinal Absorption and Tissue Distribution of Aza-Sugars from Mulberry Leaves and Evaluation of Their Transport by Sugar Transporters2020

    • Author(s)
      Takasu Soo、Parida Isabella S、Ito Junya、Kojima Yoshihiro、Eitsuka Takahiro、Kimura Toshiyuki、Nakagawa Kiyotaka
    • Journal Title

      Journal of Agricultural and Food Chemistry

      Volume: 68 Issue: 24 Pages: 6656-6663

    • DOI

      10.1021/acs.jafc.0c03005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Supplementation ofBacillus amyloliquefaciensAS385 culture broth powder containing 1-deoxynojirimycin in a high-fat diet altered the gene expressions related to lipid metabolism and insulin signaling in mice epididymal white adipose tissue2020

    • Author(s)
      Parida Isabella Supardi、Takasu Soo、Ito Junya、Ikeda Ryoichi、Yamagishi Kenji、Kimura Toshiyuki、Eitsuka Takahiro、Nakagawa Kiyotaka
    • Journal Title

      Food & Function

      Volume: 11 Issue: 5 Pages: 3926-3940

    • DOI

      10.1039/d0fo00271b

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Kinetic analysis of inhibition of α-glucosidase by leaf powder from Morus australis and its component iminosugars2020

    • Author(s)
      Qiao Ying、Nakayama Juri、Ikeuchi Takeaki、Ito Masaaki、Kimura Toshiyuki、Kojima Kenji、Takita Teisuke、Yasukawa Kiyoshi
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 84 Issue: 10 Pages: 2149-2156

    • DOI

      10.1080/09168451.2020.1783991

    • NAID

      120006892057

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 食後高血糖改善成分を含む新規食材の活用 桑葉・微生物によるDNJの生産と機能性・安全性の評価2020

    • Author(s)
      高須 蒼生、木村 俊之、伊藤 隼哉、仲川 清隆
    • Journal Title

      化学と生物

      Volume: 58 Pages: 13-19

    • NAID

      130007964957

    • Related Report
      2019 Research-status Report
  • [Journal Article] Physiological Effects and Organ Distribution of <i>Bacillus amyloliquefaciens</i> AS385 Culture Broth Powder Containing 1-Deoxynojirimycin in C57BL/6J Mice2019

    • Author(s)
      PARIDA Isabella Supardi、TAKASU Soo、ITO Junya、IKEDA Ryoichi、YAMAGISHI Kenji、KIMURA Toshiyuki、MIYAZAWA Teruo、EITSUKA Takahiro、NAKAGAWA Kiyotaka
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 65 Issue: 2 Pages: 157-163

    • DOI

      10.3177/jnsv.65.157

    • NAID

      130007639824

    • ISSN
      0301-4800, 1881-7742
    • Year and Date
      2019-04-30
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 親水性相互作用クロマトグラフィーによる植物中のアザ糖の分離特性の評価2022

    • Author(s)
      高須蒼生、Isabella Supardi Parida、長崎由実、中溝莉緒、鈴木誠一郎、須藤圭一、江坂幸宏、木村俊之、仲川清隆
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 桑葉中のアザ糖の吸収性の違いと機能性向上に向けた試み2020

    • Author(s)
      高須 蒼生、Isabella S. Parida、小島 芳弘、伊藤 隼哉、木村 俊之、仲川 清隆
    • Organizer
      農芸化学会東北支部会
    • Related Report
      2020 Research-status Report
  • [Presentation] 1-Deoxynojirimycin from Bacillus amyloliquefaciens AS385 ameliorates high-fat diet-induced metabolic disorders in C57BL/6J mice2020

    • Author(s)
      Isabella Supardi Parida、高須 蒼生、伊藤 隼哉、池田 亮一、山岸 賢治、木村 俊之、永塚 貴弘、仲川 清隆
    • Organizer
      栄養食糧学会東北支部会
    • Related Report
      2020 Research-status Report
  • [Presentation] シマグワ茶およびその成分イミノ糖によるα-グルコシダーゼ阻害効果の速度論的解析2020

    • Author(s)
      喬穎、中山珠里、池内健晃、伊東昌章、木村俊之、兒島憲二、滝田禎亮、保川清
    • Organizer
      日本農芸化学会2020年度大会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 安定同位体標識による1-デオキシノジリマイシンの吸収・排泄と臓器移行の評価2020

    • Author(s)
      高須 蒼生、 Isabella S. Parida、田中 福代、山岸 賢治、伊藤 隼哉、木村 俊之、仲川 清隆
    • Organizer
      日本農芸化学会2020年度大会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] シマグワ茶に含まれるα-グルコシダーゼ阻害成分の解析2020

    • Author(s)
      喬 穎、中山珠里、伊東昌章、木村俊之、 兒島憲二、 滝田禎亮、 保川清
    • Organizer
      日本農芸化学会2020年度大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Physiological Effects and Organ Distribution of 1-Deoxynojirimycin From Bacillus amyloliquefaciens AS385 in C57Bl/6J Mice2019

    • Author(s)
      PARIDA Isabella Supardi、TAKASU Soo、ITO Junya、IKEDA Ryoichi、YAMAGISHI Kenji、KIMURA Toshiyuki、MIYAZAWA Teruo、EITSUKA Takahiro、NAKAGAWA Kiyotaka
    • Organizer
      Asian Congress of Nutrition 2019 (ACN 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 桑葉中の主要なアザ糖の吸収機構の評価・解明2019

    • Author(s)
      高須 蒼生、Isabella S Parida、小島 芳弘、伊藤 隼哉、木村 俊之、仲川 清隆
    • Organizer
      栄養食糧学会食品科学工学会合同東北支部大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Evaluation of the absorption and organ distribution of 1-deoxynojirimycin in rat2019

    • Author(s)
      KIMURA Toshiyuki、TAKASU Soo、TANAKA Fukuyo、YAMAGISHI Kenji、MIYAZAWA Teruo、NAKAGAWA Kiyotaka
    • Organizer
      The 7th International Conference on Food Factors (ICoFF 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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