开发和临床检测的快速分子诊断系统的病原性皮肤病原体的Tinea Capitis的多个中心在中国的发展和临床检测
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Updated: Jun 18, 2026
08:56
Visual Detection of Multiple Nucleic Acids in a Capillary Array
Published on: November 15, 2017
7.2K
Peiqiu Zhu1,2,3,4, Jin Shao1,2,3,4, Ruojun Wang1,2,3,4
1Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China.
Mycoses
|December 27, 2024
概括
一种新的实时PCR方法准确地识别了在儿童中引起 tinea capitis 的皮肤菌. 这种快速诊断工具改进了传统方法,为真菌感染提供了更快,更具体的结果.
科学领域:
- 医学真菌学 医学真菌学
- 分子诊断学 分子诊断学
- 皮肤病学 皮肤病学
背景情况:
- 头炎是全球流行的一种儿科真菌感染.
- 传统的诊断方法 (宏观/显微分析) 是缓慢的,缺乏特异性.
- 准确的物种鉴定对于控制感染源和传播至关重要.
研究的目的:
- 开发和评估一种快速的,实时的PCR测定,用于特定物种的皮肤植物的鉴定,这些皮肤植物会导致头炎.
- 与传统方法相比,提高诊断效率.
主要方法:
- 设计了一种两步实时PCR (RT-PCR) 试验,针对ITS和β-蛋白DNA片段.
- 该试验涵盖了关键的皮肤植物物种复合体,包括Microsporum canis,Trichophyton mentagrophytes,T. rubrum和T. tonsurans.
- 分析了231名 tinea capitis 患者的头发和头皮痕.
主要成果:
- 在93.07%的样本中,RT-PCR检测到真菌元素,明显高于真菌培养 (80.52%).
- RT-PCR和培养的联合疗效达到了96.81%.
- 通过RT-PCR在97.62%的培养确认病例中发现了Microsporum canis,并在53.33%的培养负样本中检测到M. canis.
结论:
- 一个快速的实时TaqMan PCR测定成功地开发用于 tinea capitis 诊断.
- 该试验证明了在头发和皮肤样本中检测皮肤菌的高诊断效率.
- 这种方法适用于常规实验室实践,提高了诊断速度和准确性.
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