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本文作者观察了低氧条件下照射小鼠胸部后心肌的病理改变 ,结果表明放疗前 2ｍｉｎ吸入 10 5 %的低氧气体对小鼠心肌有一定的放射防护作用。一、材料和方法1 动物 :18～ 2 2ｇ昆明种小鼠 ,雌雄各半 ,由我院医学实验动物中心提供并饲养。饲养条件为 :室温 2 2～ 2 8℃ ,相对湿
The authors observed the pathological changes in the myocardium of mice after hypoxia, and found that inhalation of 10 5% hypoxia gas 2 minutes before radiotherapy had a certain radioprotective effect on the myocardium of mice. First, the material and method 1 animal: 18 ~ 2 2g Kunming mice, male and female, provided by the Medical Laboratory Animal Center and feeding. Rearing conditions: room temperature 2 2 ~ 2 8 ℃, relatively wet