法医学杂志

法医学杂志 ›› 2010, Vol. 0 ›› Issue (2): 88-90.

• 论文 • 上一篇    下一篇

猪眼房水中K~+、Na~+质量浓度与死亡时间的关系

韩菊;余广彪;董业强;方超;竞花兰;罗思敏;   

  1. 中山大学中山医学院法医学系;清远市公安局;
  • 发布日期:2010-04-25 出版日期:2010-04-28

The Relationship between PMI and Concentration of Potassium Ion and Sodium Ion in Swine Aqueous Humor after Death

HAN JU1,YU GUANG-BIAO1,DONG YE-QIANG1,FANG CHAO1,JING HUA-LAN1,LUO SI-MIN2 (1. DEPARTMENT OF FORENSIC MEDICINE,ZHONGSHAN MEDICAL COLLEGE,SUN YAT-SEN UNIVERSITY,GUANGZHOU 510080,CHINA; 2. QINGYUAN PUBLIC SECURITY BUREAU,GUANGZHOU 511519,CHINA)   

  • Online:2010-04-25 Published:2010-04-28

摘要： 目的探讨房水中K+、Na+质量浓度与死亡时间(postmortem interval,PMI)的关系。方法利用Z-500原子吸收分光光度计检测在4℃、28℃下猪死后48h内眼房水中的K+、Na+质量浓度。结果4℃温度下,死后48h猪眼房水中K+、Na+质量浓度与PMI相关。推定方程为PMI=-0.178[K+]2+49.978(R2=0.995),PMI=120.987/[Na+/K+]-28.834(R2=0.905)。结论房水中K+质量浓度变化可作为推断低温环境下尸体PMI的参考指标之一。

关键词: 法医病理学, 眼房水, 钾, 钠, 死亡时间, 猪

Abstract: Objective To explored the relationship between the concentration of potassium ion as well as sodium ion in the aqueous humor and post-mortem interval (PMI). Methods The concentrations of potassium ion and sodium ion in the aqueous humor of swine within 48 h after death at 4 ℃ and 28 ℃ were detected using Z-500 atomic absorption spectrophotometer. Results The concentrations of potassium ion and sodium ion in aqueous humor of isolated swine eyeballs within 48 h after death when the environmental temperature was 4 ℃ were significantly related to PMI. The relationship between PMI and the concentration of potassium ion was PMI=-0.178[K+]2+49.978(R2=0.995). The relationship between PMI and the rate of sodium ion and potassium ion was PMI=120.987/[Na+/K+]-28.834(R2=0.905). Conclusion The concentration of potassium in aqueous humor of isolated swine eyeballs may be one of the reference indicators to estimate PMI of the corpses at lower temperatures.

Key words: forensic pathology, aqueous humor, potassium, sodium, postmortem interval estimation, swine