Study on the relationship between PMI and the concentration of magnesium and iron in the vitreous humor of rabbit after death.
- Author:
Xiao-ming XU
1
;
Zhi-qiang GONG
;
Yue-gang SUN
Author Information
1. Department of Forensic Medicine, Jiangxi Medical College, Nanchang 330006.
- Publication Type:Research Support, Non-U.S. Gov't
- MeSH:
Animals;
Iron/analysis*;
Magnesium/analysis*;
Mass Spectrometry/methods*;
Postmortem Changes;
Rabbits;
Time Factors;
Vitreous Body/chemistry*
- From:
Journal of Forensic Medicine
2002;18(2):65-66
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To seek a exact method of estimating postmortem interval (PMI).
METHODS:This study detected the concentration of magnesium (Mg) and iron (Fe) in vitreous humor of rabbit at 96 h after death and explored the relationship between their concentration and PMI using a method ICP-MS.
RESULTS:The concentra-tion of Mg in vitreous humor of rabbit at 48 h after death and Fe in vitreous humor of rabbit at 6-48 h after death were related to PMI significantly. The formulae of the relationship between PMI and Mg concentrations is y = 0.0738x2 + 0.6997x + 11.45 (within 48 h, R2 = 0.9119). The formulae of the relationship between PMI and Fe concentrations is y = 0.0411x2 - 0.3148x + 1.4113 (within 6-48 h, R2 = 0.9594).
CONCLUSION:The concentration of Mg in vitreous humor of rabbit at 48 h after death and Fe in vitreous humor of rabbit at 6-48 h after death may be as reference indicator to estimate PMI.
