法医学杂志 ›› 2025, Vol. 41 ›› Issue (5): 477-481.DOI: 10.12116/j.issn.1004-5619.2025.450301

• 法医微生物学专题 • 上一篇    

qPCR检测尸体心血浮游生物DNA诊断溺死

张晓峰1(), 陈玲1, 陈晓晖2, 赵建2, 林添春3, 谷党恩3, 王锋3, 刘志勇2, 蒙诗韵4, 杨幸怡2, 徐曲毅2()   

  1. 1.南方医科大学法医学院,广东 广州 510515
    2.广州市刑事科学技术研究所 法医病理学公安部重点实验室,广东 广州 510442
    3.广州市公安局花都区分局,广东 广州 510800
    4.中山大学中山医学院法医学系,广东 广州 510080
  • 收稿日期:2025-03-03 发布日期:2026-01-27 出版日期:2025-10-25
  • 通讯作者: 徐曲毅
  • 作者简介:张晓峰(2000—),男,硕士研究生,主要从事法医物证学研究;E-mail:xfzhang0731@163.com
  • 基金资助:
    国家自然科学基金资助项目(82371901);国家重点研发计划资助项目(2023YFC3303902);公安部科技计划资助项目(2022JC35);公安部刑事技术“双十计划”推广项目(2022SSTG01)

Diagnosis of Drowning by qPCR Detection of Plankton DNA in Cardiac Blood of Cadavers

Xiao-feng ZHANG1(), Lin CHEN1, Xiao-hui CHEN2, Jian ZHAO2, Tian-chun LIN3, Dang-en GU3, Feng WANG3, Zhi-yong LIU2, Shi-yun MENG4, Xing-yi YANG2, Qu-yi XU2()   

  1. 1.School of Forensic Medicine, Southern Medical University, Guangzhou 510515, China
    2.Guangzhou Forensic Science Institute & Key Laboratory of Forensic Pathology, Ministry of Public Security, Guangzhou 510442, China
    3.Huadu District Branch of Guangzhou Public Security Bureau, Guangzhou 510800, China
    4.Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
  • Received:2025-03-03 Online:2026-01-27 Published:2025-10-25
  • Contact: Qu-yi XU

摘要:

目的 探讨采用实时荧光定量PCR检测水中尸体心血浮游生物诊断溺死的可行性。 方法 心前区经皮穿刺采集32例溺死尸体心血、10例非溺死尸体心血,采用实时荧光定量PCR方法检测血液中的浮游生物(硅藻、蓝藻和水生气单胞菌)。 结果 17例溺死者的心血检出浮游生物DNA,10例非溺死者心血均未检出浮游生物DNA。 结论 实时荧光定量PCR技术可检测出大部分溺死尸体心血中的浮游生物DNA,在辅助溺死诊断中可能具有一定的应用潜力。

关键词: 法医病理学, 溺死, 实时荧光定量PCR, 心血, 浮游生物

Abstract:

Objective To investigate the feasibility of diagnosing drowning by detecting plankton DNA in cardiac blood of cadavers recovered from water using real-time quantitative PCR (qPCR). Methods Cardiac blood samples were collected via precordial puncture from 32 drowned cadavers and 10 non-drowned cadavers. qPCR was employed to detect plankton (diatoms, cyanobacteria and Aeromonas) in the blood samples. Results Plankton DNA was detected in 17 drowning cadavers, while no plankton DNA was detected in the 10 non-drowned cadavers. Conclusion qPCR can detect plankton DNA in cardiac blood of most drowning cases. This method may have potential as an auxiliary tool in the diagnosis of drowning.

Key words: forensic pathology, drowning, real-time quantitative PCR, cardiac blood, plankton

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