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用于LAMP试验的比较DNA提取方法,作为从尿液样本中对人类分裂体的分子诊断

Brittany Pulkkila¹, Chummy Sikasunge², James Mwansa³

¹Department of Medical Laboratory Science, Marquette University, Milwaukee, WI, United States of America.

BMC infectious diseases

|September 22, 2025

概括

循环介导的同热放大 (LAMP) 显示出在非洲诊断杆菌病的前景. 评估DNA提取方法显示,在尿样中检测schistosoma寄生虫的成本和效率各不相同.

科学领域:

* 寄生虫学寄生虫学
* 分子诊断学分子诊断学
* * 公共卫生公共卫生

背景情况:

* 杆菌仍然是一个重要的公共卫生问题在非洲,由 * Schistosoma mansoni * 和 * S. haematobium * 的同时感染引起.
* 精确的诊断对于控制和消除杆菌病至关重要,需要敏感和特定的现场适用的测试.
*世界卫生组织 (WHO) 强调需要改进的诊断工具来评估计划的成功.

研究的目的:

*评估循环介导同热放大 (LAMP) 对于检测 *S. mansoni* 和 *S. haematobium* DNA 的有效性.
* 为了比较四种不同的DNA提取技术对LAMP灵敏度,特异性,成本和时间的影响.
* 评估使用LAMP与现场收集的尿样一起用于诊断杆菌病的可行性.

主要方法:

*从30名赞比亚学童的过尿样中提取了DNA,使用了Qiagen,LAMP-PURE (LP),Chelex和加热方法.
* 提取的DNA使用循环介导同热放大 (LAMP) 进行分析,以检测*S. mansoni*和*S. haematobium*.
*对于每个DNA提取技术,记录了成本分析和人时间参与.

主要成果:

* Qiagen 和 LP DNA 提取方法都成功检测到了瘤感染.
* LP提取速度最快 (20分钟),但最昂贵 (包括放大功率在内的每个样本9.35美元).
*加热提取是快速且廉价的 (每样本4.90美元),但产生了假阴性,表明尿液样本中的抑制剂. 切莱克斯提取显示出比加热更好的性能.

结论:

*LAMP是一种敏感的诊断方法,用于检测尿液中的S. mansoni和S. haematobium.
*DNA提取方法的选择显著影响了基于LAMP的杆菌病诊断的成本,时间和灵敏度.
* 需要进一步优化,以解决尿样中的潜在抑制剂,用于加热等快速DNA提取方法.

关键词:

切莱克斯 (Chelex) 的意思是加热加热加热加热一个灯的灯光.灯-纯净的灯-纯净的 Qiagen:血液和组织迷你套件这种疾病叫做schistosomiasis.尿液尿液尿液

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