中枢神经系统感染的元基因组检测被常规测试遗漏
Noely Evangelista Ferreira1, Michael G Berg2, Antonio C da Costa1
1Departamento de Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.
JCI insight
|May 20, 2025
概括
这项关于巴西传染性脑膜炎的研究发现,在近一半的病例中,标准测试确定了病原体. 基因组测序改善了诊断,揭示了中枢神经系统感染的新原因.
科学领域:
- 神经科学是一个神经科学.
- 传染性疾病 传染性疾病
- 基因组学就是基因组学.
背景情况:
- 在社区获得的传染性脑膜炎带来了严重的死亡率和发病率挑战.
- 有限的诊断资源加剧了这些中枢神经系统 (CNS) 感染的影响.
研究的目的:
- 在巴西圣保罗的脑膜炎患者中评估急性中枢神经系统感染.
- 评估元基因组测序在诊断未诊断病例中的有用性.
主要方法:
- 在2018年3月至2019年11月期间,从600名患者收集了脑脊液 (CSF).
- 采用标准的微生物学和分子诊断.
- 在最初未被诊断的病例中利用元基因组下一代测序 (mNGS) 来识别病原体.
主要成果:
- 标准检测在48.6%的病例中发现了感染病因,主要是病毒 (肠道病毒,疹病毒).
- 非病毒病原体占确诊感染的22.3%.
- 在未被诊断的病例中,mNGS确定了额外的病因,包括新兴的关联,如Vesivirus与中枢神经系统感染.
结论:
- 标准诊断在不到一半的脑膜炎病例中发现了传染病原体.
- 甲基因组测序显著提高了中枢神经系统感染的诊断准确度.
- 改进的诊断可以为复杂的神经感染提供治疗和流行病准备信息.
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