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[烧焦骨骼中DNA鉴定的研究]

[Study of DNA identification in burned bones].

作者信息

Ye Jian, Ji An-quan, Zhao Xing-chun

机构信息

Institute of Forensic Science, Ministry of Public Security, Beijing 100038, China.

出版信息

Fa Yi Xue Za Zhi. 2004;20(3):155-9.

Abstract

OBJECTIVE

For the purpose of solving a problems of DNA testing of burned bones.

METHODS

We present a novel strategy to obtain DNA from burned bones based on the use of cetyltrimethylammonium bromide (CTAB) lysis buffer and isoamyl alcohol-chlorophorm extraction with subsequent DNA purification using the DNA IQ System.

RESULTS

The methods were found to be effective in removing the PCR inhibitors from the burned bone. Then the extracted DNA was successfully genotyped by using the florescence labeling STR multiplex method.

CONCLUSION

The results of this research will assist forensic scientists in the identification of DNA from victims whose bodies underwent significant trauma or burning, precluding the utilization of traditional forensic DNA identification techniques.

摘要

目的

为解决烧焦骨骼DNA检测的问题。

方法

我们提出了一种基于使用十六烷基三甲基溴化铵(CTAB)裂解缓冲液和异戊醇 - 氯仿萃取,随后使用DNA IQ系统进行DNA纯化,从烧焦骨骼中获取DNA的新策略。

结果

发现这些方法在去除烧焦骨骼中的PCR抑制剂方面有效。然后使用荧光标记STR复合扩增方法成功对提取的DNA进行了基因分型。

结论

本研究结果将有助于法医科学家鉴定身体遭受重大创伤或焚烧的受害者的DNA,排除传统法医DNA鉴定技术的使用。

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