A Comparative Study between Pulsed and Continuous Wave Irradiation for Talaporfin Sodium Mediated Photosensitization in Solution, In-Vitro and In-Vivo

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Talaporfin sodium mediated photosensitization effects induced by pulsed (FWHM: 8.7ns, 40Hz) or continuous wave (CW) irradiation were investigated in serum containing solution, <I>in vitro</I>, and <I>in vivo</I>. The singlet oxygen luminescence in the solution under the pulsed irradiation was significantly reduced to about 40% of the CW irradiation at the fluence rate of 200mW/cm<SUP>2</SUP>. The oxygen consumption in the solution and the photocytotoxicity against macrophage-like cells under pulsed irradiation was significantly decreased when the fluence rate increased from 20 to 400mW/cm<SUP>2</SUP>, while the these fluence rate dependences were minor under CW irradiation. The obtained fluence rate dependences of the singlet oxygen luminescence, oxygen consumption, and photocytotoxicity were consistently correlated to each other. The pulsed irradiation PDT on the rat subcutaneous prostate tumor treated at 400mW/cm<SUP>2</SUP> and 100J/cm<SUP>2</SUP> irradiation demonstrated the superficial tumor preservation. This preservation could not be explained the irradiation condition dependence of the obtained photocytotoxicity <I>in vitro</I>.

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  • レーザー研究  

    レーザー研究 35(3), 180-186, 2007-03-15 

    The Laser Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018870025
  • NII書誌ID(NCID)
    AN00255326
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    03870200
  • NDL 記事登録ID
    8751195
  • NDL 雑誌分類
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL 請求記号
    Z16-1040
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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