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Establishment of in vivo measurement of glucose anomers using near-infrared spectroscopy

Research Project

Project/Area Number 17K15356
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Agricultural environmental engineering/Agricultural information engineering
Research InstitutionKeio University

Principal Investigator

Tanaka Sae  慶應義塾大学, 医学部(信濃町), 助教 (60770336)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords近赤外光 / グルコース / 異性体 / 糖類 / 多変量解析 / 近赤外分光 / 水分子 / 定量 / 糖 / 生体計測 / 分析化学 / 非侵襲的測定
Outline of Final Research Achievements

Glucose, which is used as energy source, exists in an aqueous solution in a state in which two isomers are mixed in a ratio of 4: 6. This ratio may change depending on the temperature, the presence of ions, and the enzyme reaction, but there has been no method for detecting the change in isomer ratio in the living body or the reaction solution in situ. In this study, near infrared spectroscopy that has a high bio-permeability was used to analyze the near-infrared spectra of glucose isomer in an aqueous solution and quantify the isomer ratio. As a result, the two isomers of glucose showed differences in spectra at multiple wavelength regions, including 1,742 nm, which is the highest correlation with the isomer ratio in PLS regression analysis. In addition, it was shown that quantification of the isomer ratio using spectra around 1,742 nm is effective even under the influence of temperature change and ions.

Academic Significance and Societal Importance of the Research Achievements

これまでの近赤外光を用いた研究では、二つの異性体の存在を無視して、グルコースを一つの化学物質として扱っていた。しかしながら、近赤外光は分子の構造に依存して波形が変わることから、各異性体は異なる波形を示す可能性があった。本研究はその可能性に着目して解析を行うことで、これまでの研究が見逃していた異性体間の波形変化を明らかにした。この成果は、波形中に現れる分子の正確な情報を提供することで、血糖値の非侵襲測定をはじめとする糖の測定システム構築の発展を促すことが期待される。さらに、本研究の成果から、異性体割合の検出系を構築することで、がん細胞などの糖代謝の異なる細胞を検出できる可能性も考えられる。

Report

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

    (8 results)

All 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Quantification of anomeric structural changes of glucose solutions using near-infrared spectra.2018

    • Author(s)
      Tanaka S, Kojic D, Tsenkova R, Yasui M.
    • Journal Title

      Carbohydr Res.

      Volume: 463 Pages: 40-46

    • DOI

      10.1016/j.carres.2018.04.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantification of anomeric structural changes of glucose solutions using near-infrared spectra2018

    • Author(s)
      Sae Tanaka, Dusan Kojic, Roumiana Tsenkova, Masato Yasui
    • Journal Title

      Carbohydrate Research

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Quantitative Analysis of the Ratio of Glucose Anomers in Solution2018

    • Author(s)
      Sae Tanaka, Dusan Kojic, Roumiana Tsenkova and Masato Yasui
    • Organizer
      The 6th Asian NIR Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantitative Analysis of the Ratio of Glucose Anomers in Solution2018

    • Author(s)
      Sae Tanaka, Dusan Kojic, Roumiana Tsenkova and Masato Yasui
    • Organizer
      International Diffuse Reflectance Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of Interaction between Glucose Anomers and Water Molecules2018

    • Author(s)
      Sae Tanaka, Dusan Kojic, Roumiana Tsenkova and Masato Yasui
    • Organizer
      The 3rd Aquaphotomics International Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 糖異性体のin vivo測定法確立に向けた解析2018

    • Author(s)
      田中 冴
    • Organizer
      日本分光学会近赤外部会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Analysis of Interaction between Glucose Anomers and Water Molecules2017

    • Author(s)
      Sae Tanaka, Dusan Kojic, Roumiana Tsenkova, Masato Yasui
    • Organizer
      18th International conference of near infrared spectroscopy
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 近赤外分光法を用いたグルコース異性体水溶液の解析2017

    • Author(s)
      田中冴
    • Organizer
      第一回アクアフォトミクス研究会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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