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目的 :研究电离辐射对新生和成年大鼠脊髓细胞凋亡的影响及与细胞增殖状态的关系。方法 :1选用 344只新生 (1、2周龄 )和成年 (10周龄 )雌性 Fisher大鼠 ,其 C2 - T2脊髓分别接受 8或 18Gy和 8或2 2 Gy单次 X射线照射。2细胞凋亡的检测 :照后不同时间点在 C2 - T2脊髓中间部位
Objective: To study the effect of ionizing radiation on cell apoptosis in neonatal and adult rats and the relationship with cell proliferation status. METHODS: A total of 344 freshmen (1, 2 weeks old) and adult (10 weeks old) female Fisher rats were enrolled in this study. The C2 - T2 spinal cord was irradiated with 8 or 18 Gy and 8 or 2 Gy single X rays respectively. 2 apoptosis detection: at different time point after C2 - T2 spinal cord in the middle part