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微阅读器23HS Plex ID系统的开发验证:用于法医应用的新型补充非CODIS STR多重复合试验

Hui Li¹, He Ren², Fan Yang³

¹Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Key Laboratory of Forensic Science, Ministry of Justice, Academy of Forensic Sciences, Shanghai, China.

Electrophoresis

|September 30, 2024

概括

一个新的Microreader 23HS Plex ID系统可以同时对23个非CODIS和3个CODIS短串重复 (STR) 位置进行分析. 这种验证的测定方法是法医应用的可靠工具,包括复杂的亲属测试.

科学领域:

法医遗传学法医遗传学
分子生物学分子生物学
人类识别人类识别

背景情况:

短串重复 (STR) 分析对于法医中人类识别至关重要.
现有的CODIS (组合DNA索引系统) 位点可能并不总是足以处理复杂的病例.
开发补充STR测定增强了歧视力.

研究的目的:

开发和验证一种新的补充STR多重测定方法,即Microreader 23HS Plex ID系统.
为了使23个非CODIS和3个CODIS STR位点加上 amelogenin 的同时进行分析.
根据国际和中国的验证标准来评估试验的性能.

主要方法:

开发了微阅读器23HS Plex ID系统,针对26个地区.
综合验证包括PCR条件,灵敏度,精度,准确性,可重复性和抑制性测试.
混合和人口研究涉及500个汉族人.

主要成果:

微阅读器23HS Plex ID系统展示了可靠性,强度和平衡的峰值高度.
测试灵敏度为模板DNA的0.125 ng,在各种混合比率中检测到小等位基因.
人口数据产生了7.757 × 10−27的累积随机匹配概率和高强度的歧视.

结论:

微阅读器23HS Plex ID 系统是一个经过验证和强大的法医使用的测试.
它作为一种有价值的补充工具,特别用于复杂的亲属测试和具有挑战性的STR突变病例.
该系统显著提高了法医DNA分析能力,超出了标准CODIS位置.

关键词:

这就是SWGDAM.法医医疗法学在线非-CODIS 短串联重复验证验证的时间

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