尿液:一个陷的分子检测托斯卡纳病毒? 一个分析性的概念验证研究
Antonio Mori1, Andrea Matucci1, Elena Pomari1
1Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy.
Viruses
|January 23, 2024
概括
稀释尿样显著改善了使用RT-PCR检测托斯卡纳病毒 (TOSV) 的检测. 这种方法提高了TOSV感染的诊断准确性,由于临床重叠和尿液中的PCR抑制剂,这些感染往往被低估.
科学领域:
- 病毒学 病毒学
- 分子诊断学 分子诊断
- 公共卫生 公共卫生
背景情况:
- 托斯卡纳病毒 (TOSV) 在地中海地区引起脑膜炎和脑膜炎.
- 由于症状与其他神经侵入性病毒感染重叠,对TOSV感染的临床诊断具有挑战性.
- 目前的参考诊断方法依赖于脑脊液或血液中的PCR检测,但尿液中的TOSV检测未得到充分利用.
研究的目的:
- 为了研究尿液PCR抑制剂对TOSV检测的影响.
- 评估稀释尿样的有效性,以改善TOSV检测.
- 提高尿液作为TOSV.生物矩阵的诊断效用.
主要方法:
- 在未稀释和连续稀释的尿样中检测TOSV的比较.
- 尖的尿样具有不同度的TOSV.
- 实时定量聚合酶链反应 (RT-PCR) 用于TOSV检测和效率评估.
主要成果:
- 尿样中含有PCR抑制剂,这会对TOSV检测产生负面影响.
- 稀释尿样显著提高了TOSV检测灵敏度.
- 检测极限从未稀释的尿液中的1×104TCID50提高到稀释的尿液中的1TCID50.
- 检测效率从稀释尿中的101.35%提高到未稀释尿中的129.62%.
结论:
- 稀释尿液对于克服PCR抑制和准确检测TOSV至关重要.
- 这一发现为优化基于RT-PCR的使用尿液的TOSV诊断提供了初步见解.
- 基于尿的增强诊断可以帮助解决对TOSV感染的低估问题.
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