Radiosensitivity of Glucose Isomerase in vivo and in vitro
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概要
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The radiosensitivity of glucose isomerase was investigated under various irradiation conditions. The inactivation of glucose isomerase irradiated in a cell-bound state was exponential, and an increase in inactivation was recognized in an oxygenated condition. The cell-free enzyme was highly radiosensitive and had a small oxygen effect compared to that in a cell-bound state. The oxygen enhancement ratio (OER) decreased with a degree in enzyme purification. Released glucose isomerase was protected by the addition of glutathione, and the inactivation curve in nitrogen almost agreed with that in the cell. The protective effect of glutathione in oxygen decreased at higher doses because glutathione in oxygen was easily decomposed by irradiation.
- 社団法人 日本農芸化学会の論文
著者
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WATANABE Hiroshi
Takasaki Radiation Chemistry Establishment, Japan Atomic Enerty Research Institute (JAERI)
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Kume Tamikazu
Takasaki Radiation Chemistry Research Establishment Japan Atomic Energy Research Institute
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Takehisa Masaaki
Takasaki Radiation Chemistry Research Establishment Japan Atomic Energy Research Institute
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SATO Tomotaro
Takasaki Radiation Chemistry Research Establishment, Japan A tomic Energy Research Institute
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