Biomedical Application of Electron Spin Resonance (ESR) Spectroscopy-Assessment of Antioxidant Property for Development of Drugs-

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  • LEE Masaichi-Chang-il
    Department of Clinical Care Medicine, Division of Pharmacology and ESR Laboratories, Kanagawa Dental College

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  • 電子スピン共鳴（Ｅｌｅｃｔｒｏｎ　Ｓｐｉｎ　Ｒｅｓｏｎａｎｃｅ；　ＥＳＲ）法による生物医学応用―医薬品開発のための抗酸化能評価―
  • 電子スピン共鳴(Electron Spin Resonance; BSR)法による生物医学応用--医薬品開発のための抗酸化能評価
  • デンシ スピン キョウメイ Electron Spin Resonance BSR ホウ ニ ヨル セイブツ イガク オウヨウ イヤクヒン カイハツ ノ タメノ コウサンカノウ ヒョウカ

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Abstract

  Reactive oxygen species (ROS) are associated with oxidative stress-mediated alterations under pathophysiological conditions, and particularly brain ischemia, brain tumor, and neurodegenerative diseases. Electron spin resonance (ESR) is recognized as one of the most powerful techniques available for the detection of ROS in tissues and cells. We previously developed an in vitro ESR-based technique for the detection of free radical reactions in biological systems. In addition, significant advances in the field of in vivo ESR techniques over recent years have now made it possible to visualize the distribution and metabolism of oxidative stress, and the degree of tissue oxygenation in vivo. Nitroxyl radicals are very useful as exogenous spin probes for measuring free radical distribution, oxygen concentration, and redox metabolism by in vivo ESR in biological systems, using a combination of these ESR methods collectively focused on animal models of disease such as spontaneously hypertensive rat (SHR) or stroke-prone SHR (SHRSP) for the assessment of antioxidant property of drugs. Our results suggest that ESR could be applied to the assessment of antioxidant property on oxidative stress in target organs, especially brain, using animal disease models, SHR or SHRSP. After screening drugs for antioxidant property using such as in vitro or in vivo ESR assessment, we'll be able to develop and find novel antioxidant drugs for ROS-induced brain disease in the near future.<br>

Journal

  • YAKUGAKU ZASSHI

    YAKUGAKU ZASSHI 128 (5), 753-763, 2008

    The Pharmaceutical Society of Japan

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