Journal of Forensic Medicine ›› 2022, Vol. 38 ›› Issue (6): 747-753.DOI: 10.12116/j.issn.1004-5619.2022.420601

• Review • Previous Articles     Next Articles

Research Progress of DNA-Based Technologies for Postmortem Interval Estimation

Lan YANG1(), Xin WANG2, Yong NIU3()   

  1. 1.School of Forensic Medicine, Shanxi Medical University, Jinzhong 030600, Shanxi Province, China
    2.Criminal Investigation Detachment of Huaibei Public Security Bureau, Huaibei 235000, Anhui Province, China
    3.Criminal Investigation Bureau of the Ministry of Public Security, Beijing 100006, China
  • Received:2022-06-02 Online:2022-12-25 Published:2022-12-28
  • Contact: Yong NIU

Abstract:

In criminal investigations, postmortem interval (PMI) is important information to be inferred in homicide investigations, as well as the focus and the difficulty in forensic pathology research. Because the DNA content in different tissues is relatively constant and shows changes regularly with the extension of PMI, it has become a research hotspot of PMI estimation. This paper reviews the recent progress of PMI estimation technologies including DNA-based single cell gel electrophoresis, image analysis, flow cytometry, real-time fluorescence quantitative PCR and high-throughput sequencing, hoping to provide references for forensic medicine practice and scientific research.

Key words: forensic pathology, postmortem interval, deoxyribonucleic acid (DNA), single cell gel electrophoresis, image analysis, flow cytometry (FCM), real-time quantitative polymerase chain reaction (RT-qPCR), review

CLC Number: