The relationship between PMI and concentration of potassium ion and sodium ion in swine aqueous humor after death.
- Author:
Ju HAN
1
;
Guang-biao YU
;
Ye-qiang DONG
;
Chao FANG
;
Hua-lan JING
;
Si-min LUO
Author Information
1. Department of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510080, China.
- Publication Type:Journal Article
- MeSH:
Animals;
Aqueous Humor/chemistry*;
Female;
Forensic Pathology/methods*;
Male;
Postmortem Changes;
Potassium/analysis*;
Regression Analysis;
Sodium/analysis*;
Spectrophotometry, Atomic/methods*;
Swine;
Temperature;
Time Factors
- From:
Journal of Forensic Medicine
2010;26(2):88-90
- CountryChina
- Language:Chinese
-
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 degrees C and 28 degrees C 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 degrees C 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.
