4Rs 原则： ① 细胞放射损伤的修复 (Repair of radiation damage )：早反应组织的 α/β 值一 般都较高，而晚反应组织的 α/β 值都较低； ② 细胞再增殖(Repopulation)：⒈在一定范围内，减少分...
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Objective To study the effects of hypoxia on repair of radiation damage and the possible mechanism.
目的探讨低氧对辐射损伤修复的影响及其可能机制。
Normally zebrafish, which carry the same p53 gene as humans, can survive low doses of radiation, which causes damage to the DNA, because the gene steps in to repair that damage.
在通常情况下，像人类一样携带相同p 53基因的斑马鱼可以承受小剂量的放射，放射会对DNA造成损坏，而基因会加入对损坏的修复。
One side effect of radiation therapy is exhaustion caused as the body works to repair damage to healthy cells. Typically fatigue occurs in the later weeks of treatment.
放射治疗有一个副作用，就是人体为了修补健康细胞受到的损坏会造成疲劳。疲惫的感觉通常会在治疗后期出现。
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