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Estimation of Postmortem Intervals by Using Terminal Deoxynucleotidyl Transferase
Author(s): 
Pages: 113-114
Year: Issue:  2
Journal: JOURNAL OF FORENSIC MEDICINE

Keyword:  脱氧核苷酸末端转移酶死亡时间DNA降解;
Abstract: 目的根据机体死后组织细胞DNA降解规律,研究其与死亡时间之间的关系.方法SD大鼠处死后,在不同死亡时间段取肝、肾、脾组织提取DNA.根据DNA3′末端转移的方法(TdT法)将dUTP结合到DNA的3′末端,检测反应剩余的dUTP量,从而推测机体死后不同时间段DNA的降解情况.结果经对剩余dUTP检测发现,dUTP的剩余量随死亡时间延长而减少,说明DNA降解与死亡时间存在一定的关系.结论根据机体死后DNA降解规律可用于早期死亡时间的推测.
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