【摘要】 目的:研究脑组织修复与~3H-TdR掺入之间的关系。方法:昆明小鼠25只,20只制成脑损伤模型,分别于术后3天,1、2、3周取损伤部位脑组织,进行~3H-TdR(氚标胸腺嘧啶核苷)放射活度测定。5只作对照。结果:术后3天和1周~3H-TdR液闪计数分别为4592±2002和4111±2234,对照组为1576±96。两组间有明显差异(P<0.01;P<0.05)。结论:伤后脑组织摄取~3H-TdR以3天至1周后最多。更多还原

【Abstract】 Objective: To study the relations between renovation of brain tissue and 3H -.TdK (3H- Thymidine) incorporation. Method: 20 Kunming mice were made into models of traumatic brain injury by surgery; 5 served as control. Brain tissue at injury region was excavated and 3H - TdR was assayed on the third day and the first to third week after surgery, respectively. Results:The activity of 3H- TdR was 4592 ± 2002u on the third day, 4111 ±2234u on the first week, and 1576 ±96u in the control group. The statistical difference between them was significant ( P < 0.01 ; P < 0.05). Conclusion; The intake of 3H - TdR in brain tissue injury was maximum from the 3rd to 7th day after surgery.更多还原