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Clarifying the Influence of Different Skin Layer Structure on Ultraviolet Light Therapy in Atopic Dermatitis

Research Project

Project/Area Number 20K14670
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 19020:Thermal engineering-related
Research InstitutionShibaura Institute of Technology

Principal Investigator

Kono Takahiro  芝浦工業大学, 工学部, 助教 (30801790)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords光物性 / 光線治療 / 紫外線療法 / 皮膚 / アトピー性皮膚炎 / 紫外線 / ふく射伝播
Outline of Research at the Start

アトピー性皮膚炎に対する紫外線療法は,有効な場合の高い治療効果が注目され研究が進められている.紫外線療法は皮膚への光の浸透深さが重要だと考えられているが,従来の研究では臨床研究による症状観察が中心で,皮膚での光の浸透深さの詳細な分析が行えていない.本研究では,紫外線の浸透深さを明確化することを目的とする.特に,皮膚の構造(厚さ)と光物性には個人差があり,その影響が光の浸透深さにどのような違いを生み出すかついては,計測の困難さから明確化できていない.ここでは,(1) 層構造を有する皮膚の光物性計測,(2) 皮膚の構造(厚さ)の計測,(3) 計測結果を用いた紫外線の浸透深さの解析,を行う.

Outline of Final Research Achievements

Recently, ultraviolet light therapy has been attracting attention as one of the treatments for atopic dermatitis, and has been actively investigated mainly in clinical studies. However, it has not been possible to clarify how UV light actually penetrates the skin during the treatment. This is because there is no technology to measure the optical properties of the skin, which has a complex structure.
In this study, we developed a technology that can measure the optical properties of each layer of layered skin and the thickness of the skin layer structure, and conducted measurements on human skin. Experimental verification proved that this technology enabled the measurement of optical properties of the skin layer structure, which had not been feasible before.

Academic Significance and Societal Importance of the Research Achievements

本研究で紫外線の浸透深さを明確化する手法が確立できれば,紫外線療法を行う前に患者個人の真皮にある病変に十分な紫外線を届かせることができ,有効な治療となるかを予測可能になることが期待できる.治療期間は3ヶ月程度 (週1~3回)かかり,成果がでない場合の負担が大きいため,患者個人に有効な治療となるかを事前に判断可能にすることには大きな意義がある.また,同様の紫外線療法は白斑や乾癬などの疾患でも試みられており,今後の発展が望まれている.本研究で紫外線の浸透深さを予測するモデルを構築することができれば,それらの疾患に対する研究にも応用可能となり,大きな波及効果を生む.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (6 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 1 results,  Open Access: 2 results) Presentation (2 results) Book (1 results)

  • [Journal Article] Noise reduction in LED light source-based photoacoustic imaging using M-sequences coding2023

    • Author(s)
      Fukuda Keisuke、Hashimoto Kazuma、Maheswari Rajagopalan Uma、Kono Takahiro、Yamada Jun
    • Journal Title

      Proceedings Volume 12379, Photons Plus Ultrasound: Imaging and Sensing 2023

      Volume: 12379 Pages: 332-342

    • DOI

      10.1117/12.2649032

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A Novel Fluorescent-Material-Based Simple Method for Sunscreen Evaluation2022

    • Author(s)
      Nakamura Kae、Kono Takahiro、Rajagopalan Uma Maheswari、Yamada Jun
    • Journal Title

      Applied Sciences

      Volume: 12 Issue: 22 Pages: 11521-11521

    • DOI

      10.3390/app122211521

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A local rapid temperature rise model for analyzing the effects of irradiation on human skin in laser treatments2021

    • Author(s)
      Takahiro Kono, Nobuhiro Ogawa, Hiroki Gonome, Uma Maheswari Rajagopalan, JunYamada
    • Journal Title

      International Journal of Heat and Mass Transfer

      Volume: 171 Pages: 121078-121078

    • DOI

      10.1016/j.ijheatmasstransfer.2021.121078

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Open Access
  • [Presentation] 複層構造を有する皮膚ファントムの非侵襲ふく射物性計測2021

    • Author(s)
      川久保卓,河野貴裕,ウママヘスワリラジャゴパラン,山田純
    • Organizer
      第58回日本伝熱シンポジウム
    • Related Report
      2021 Research-status Report 2020 Research-status Report
  • [Presentation] レーザーによる皮膚の色素沈着治療に関する人工皮膚モデルを用いた実験2020

    • Author(s)
      小川頌央,河野貴裕,ウママヘスワリラジャゴパラン,山田純
    • Organizer
      第57回日本伝熱シンポジウム
    • Related Report
      2020 Research-status Report
  • [Book] マイクロ・ナノ熱工学の進展2021

    • Author(s)
      分担執筆,皮膚の光計測(河野貴裕,山田純)
    • Total Pages
      808
    • Publisher
      エヌ・ティー・エス
    • ISBN
      9784860437220
    • Related Report
      2021 Research-status Report 2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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