辐射致DNA损伤及相关生物-化学-物理问题(英文)

介绍了在DNA辐射损伤以及相关生物、物理、化学问题的一些研究工作。重点是径迹结构、DNA双链断裂和细胞学终点的关系。P53-Mdm2负反馈回路在DNA损伤的细胞响应方面起重要作用，用一个简单的模型研究了P53-Mdm2负反馈回路相互作用的动力学行为。 Some of recent works are presented on radiation induced DNA damage being carried out at China Institute of Atomic Energy （CIAE） and related bio-chemi-physical problems. Emphasis is placed on track structure and its relation to the cell end-point, and a simple model proposed to study the dynamical behavior of P53-Mdm2 interaction which plays pivotal role in cellular response to DNA damage.