实验结果说明不同硒化合物不仅能够清除细胞体系产生的活性氧自由基，而且对化学反应生成的活性氧自由基也有清除作用。
It is concluded that the different selenium forms can clear the active oxygen radicals produced from both cellular metabolism and chemical reactions.
许多研究已经证明，机体的正常代谢可以产生活性氧自由基，它有很强的氧化性，是机体产生疾病和衰老的关键之一。
Many studies have shown that the normal metabolism of the body can produce reactive oxygen species (ROS), which has strong oxidation, is the key of human diseases and aging.
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