非镉中毒者死后血液中镉元素含量升高现象及分析  

Elevated Concentration of Postmortem Blood Cadmium yet not Death Cause

作　　者：王爱华[1] 于忠山[1] 刘兴胜 张云峰[1] 王瑞花[1] 任昕昕[1] 邹波 侯小平[1] 常靖[1] WANG Aihua;YU Zhongshan;LIU Xingsheng;ZHANG Yunfeng;WANG Ruihua;Ren Xinxin;ZOU Bo;HOU Xiaoping;CHANG Jing(Institute of Forensic Science,Ministry of Public Security&Beijing Engineering Research Center of Crime Scene Evidence Examination,Beijing 100038,China;College of Forensic Science,People’s Public Security University of China,Beijing 100038,China)

机构地区：[1]公安部物证鉴定中心,北京市现场物证检验工程技术研究中心,北京100038 [2]中国人民公安大学刑事科学技术学院,北京100038

出　　处：《刑事技术》2021年第6期657-660,共4页Forensic Science and Technology

基　　金：公安部技术研究计划项目(2020JSYJC11);中央级公益性科研院所基本科研业务费专项资金项目(2019JB042)。

摘　　要：本文报道了两例非镉中毒死者血液中镉元素含量异常的案例,心血中镉元素的含量分别是健康人的200倍和40倍以上,且不同部位的血液,镉元素含量不同,但组织样品中的镉元素含量在报道的正常值水平。采用相同方法,对100例活体人群静脉血及50例非镉中毒死者心血中镉元素进行检验,结果显示活体静脉血中镉元素含量均低于5ng/mL,死后镉元素会发生升高的现象,高出正常值上限10倍以上的可达20%的比例,有的样品高出近100倍。死后镉元素含量升高,可能是由于死后贮存在肝、肾等组织中的镉元素发生死后再分布,扩散至血液中所致。这也提示死后血液镉元素含量不能作为镉中毒的唯一诊断指标,要结合其他样品的检验及生活调查等因素综合判断。Two cases were here reported about abnormal elevation of cadmium concentration in postmortem heart blood of victims who died from non-cadmium poisoning.One dead showed her heart blood was 200-fold higher of cadmium concentration than the upper limit of healthy living people,with the other one demonstrating his 40-fold higher.The autopsy also revealed that different body parts were of discrepant blood cadmium concentration,with tissues being within normal range.Observations were further made about cadmium concentration in venous blood from 100 living people and heart blood from 50 non-cadmium poisoning victims.It was found that the 100 living people were all less than 5ng/mL of cadmium concentration in venous blood,and the 50 non-cadmium poisoning victims had the raised heart cadmium concentrations.There were 20%samples appearing their postmortem blood cadmium concentrations rose to 10 times more than the upper limit of normal,with some even reaching up to nearly 100 times higher.The elevated cadmium concentration of postmortem blood may result from the postmortem redistribution and diffusion of cadmium stored in tissues,e.g.,liver,kidney.Thus,a suggestion should be here put that postmortem blood cadmium concentration must be not taken as the only diagnostic indicator for identifying cadmium poisoning but combined with other sample tests and life track survey.

关 键 词：法医毒物学 镉元素 中毒 血液 死后再分布 

分 类 号：D795.1[政治法律—政治学]