Objective: to observe the dose rate effect of adaptive response of thymocyte apoptosis and cell cycle progression induced by low dose X ray radiation.
目的：观察X线低剂量辐射诱导胸腺细胞凋亡和细胞周期进程适应性反应的剂量率效应。
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The effect of thymic peptide hormone on the changes of PNA receptors on the cell surface of mouse thymocyte was found to be both concentration and time dependent.
CONCLUSION: The process of thymocyte apoptosis mediated by NO in mice is successively PS ectropion, mitochondrial depolarization, CL oxidation and cell crenation.