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目的是研究６０Ｃｏγ射线照射人乳头状病毒永生化的人支气管上皮细胞（ＢＥＰ２Ｄ）产生的活性氧（ＲＯＳ）及其对ＤＮＡ的氧化损伤，以及纳米硒（ＮＳ）的保护作用。方法：细胞上清中过氧化氢（Ｈ２Ｏ２）、超氧阴离子（Ｏ２－）以及羟自由基（ＯＨ）含量分别用辣根过氧化物
The purpose of this study was to investigate the effects of reactive oxygen species (ROS) produced by 60Coγ-ray irradiated human immortalized human bronchial epithelial cells (BEP2D) on DNA oxidative damage and the protective effects of nano-selenium (NS). Methods: The contents of hydrogen peroxide (H2O2), superoxide anion (O2-) and hydroxyl radical (OH) in the supernatant of the cells were measured with horseradish peroxidase