The Impact of Gender, Age and Tissues in vitro on Estimat- ing Postmortem Interval by FTIR Spectroscopy  

作　　者：XUAN Miao-gen FU Gao-wen LIU Feng MENG Hao-tian WANG Zhen-yuan 

机构地区：[1]Department of Forensic Medicine, College of Medicine, Xi'an Jiaotong University, Xi'an 710061, China [2]Criminal Investigation Team, Shaanxi Baishui Public Security Bureau, Baishui 715600, China [3]CriminalInvestigation Team, Shaanxi Mizhi Public Security Bureau, Mizhi 718100, China

出　　处：《法医学杂志》2013年第1期1-4,共4页Journal of Forensic Medicine

基　　金：Acknowledgement This research was supported by the National Natural Science Foundation of China （No. 81072509） and the Shanghai Key Laboratory of Forensic Medicine （No. KF0905）.

摘　　要：To investigate the influence of such individual factors as gender,age and tissues in vitro to the postmortem interval(PMI) by the Fourier transform infrared(FTIR) spectrometer in animal experiments.SD rats were classified into male and female groups,different age groups(21-day,42-day and 63-day group),and tissues in vitro and in vivo groups.The rats were sacrificed by cervical dislocation,whose bodies were kept in a controlled environmental chamber set at(20±2) ℃ and 50% humidity.The liver,kidney,spleen,myocardium,brain,lung and skeletal muscle tissues were collected for measurement from time zero to 48 h postmortem.With the change of PMI,no obvious changes were found in the main FTIR absorbance peaks and their ratios at different time points.All the experimental groups showed no significant changes when compared with the controls.The gender,age and tissues in vitro were not found to be contributing factors in the estimation of PMI via FTIR spectroscopy.To investigate the influence of such individual factors as gender, age and tissues in vitro to the postmortem interval （PMI） by the Fourier transform infrared （FTIR） spectrometer in animal experi- ments. SD rats were classified into male and female groups, different age groups （21-day, 42-day and 63-day group）, and tissues in vitro and in vivo groups. The rats were sacrificed by cervical dislocation, whose bodies were kept in a controlled environmental chamber set at （20±2）℃ and 50% humidity. The liver, kidney, spleen, myocardium, brain, lung and skeletal muscle tissues were collected for measurement from time zero to 48 h postmortem. With the main FTIR absorbance peaks and their ratios showed no significant changes when compared were not found to be contributing factors in the change of PMI, no obvious changes were found in the at different time points. All the experimental groups with the controls. The gender, age and tissues in vitro estimation of PMI via FTIR spectroscopy.

关 键 词：性别 鉴定方法 法医 肌肉组织 年龄 

分 类 号：D919[医药卫生—法医学]