利用稳定同位素分析估算身份不明尸体的地理来源。
The utilization of stable isotope analysis for the estimation of the geographic origins of unidentified cadavers.
作者信息
McLean Stuart J, Ikegaya Hiroshi, Saukko Pekka J, Zheng Huang Yung, Itoh Kyoko, Fushiki Shinji
机构信息
Department of Forensic Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 602-8566, Japan.
Department of Forensic Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 602-8566, Japan.
出版信息
Forensic Sci Int. 2014 Dec;245:45-50. doi: 10.1016/j.forsciint.2014.10.011. Epub 2014 Oct 14.
The number of unidentified cadavers is increasing worldwide and the effective methods which reveal their geographic origin are not well known. This study reports on the utilization of δ(18)O, δ(13)C, δ(2)H and δ(15)N ratios gained through stable isotope analysis of urine samples collected from eight locations: Chiba, Japan; Fuzhou, China; and Denpasar, Indonesia in our pilot study with data from healthy volunteers from five further locations from healthy volunteers: Melbourne and Perth, Australia; Qingdao, China; Turku, Finland and Oklahoma, USA. This study posits that the utilization of δ(18)O and δ(2)H is more feasible than δ(13)C and δ(15)N stable isotope ratios in differentiating or estimating the origin of human samples. Secondly, this study demonstrated that the δ(18)O and δ(2)H stable isotope ratios of urine samples from eight locations differed significantly.
全球身份不明尸体的数量在不断增加，而揭示其地理来源的有效方法却鲜为人知。本研究报告了在我们的初步研究中，对从八个地点收集的尿液样本进行稳定同位素分析所获得的δ(18)O、δ(13)C、δ(2)H和δ(15)N比率的利用情况，这八个地点分别是：日本千叶；中国福州；印度尼西亚登巴萨，另外还使用了来自其他五个地点健康志愿者的数据：澳大利亚墨尔本和珀斯；中国青岛；芬兰图尔库和美国俄克拉荷马。本研究认为，在区分或估计人类样本的来源方面，利用δ(18)O和δ(2)H比利用δ(13)C和δ(15)N稳定同位素比率更可行。其次，本研究表明，来自八个地点的尿液样本的δ(18)O和δ(2)H稳定同位素比率存在显著差异。
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