[A study on the relationship between postmortem interval and the changes of DNA content in the kidney cellule of rat].
OBJECTIVE
To study changes of DNA content in the kidney cellule of rats and relationship with the postmortem interval.


METHODS
This experiment chose seven parameter of cell nuclear, including the area and integral optical density, determined the changes of DNA content in the kidney cellule of 15 rats at different intervals between 0 and 48 h postmortem with auto-TV-image system.


RESULTS
The degradation rate of DNA in nuclear has a certainty relationship to early PMI(in 48 h) of rat, and get binomial regress equation.


CONCLUSIONS
Determining the quantity of DNA in nuclear should be an objective and exact way to estimate the PMI.
Liu
L
L
Department of Forensic Medicine, Tongji Medical University, Wuhan 430030. LiuLiang@mails,tjmu.edu.cn
Peng
D B
DB
Liu
Y
Y
Deng
W N
WN
Liu
Y L
YL
Li
J J
JJ
D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism*; D004247:DNA / Q000378:metabolism*; D007091:Image Processing, Computer-Assisted; D007668:Kidney / Q000166:cytology*; D008297:Male; D011180:Postmortem Changes; D051381:Rats; D013997:Time Factors
D004247:DNA