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Updated: May 29, 2025

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克罗恩氏病与潜伏性结核病感染或肠结核病:通过针对性的下一代测序来快速歧视
Lingna Ye1, Yushu Cao2, Yujuan Fu3
1Department of Gastroenterology, Qiantang Branch of Sir Run Run Shaw Hospital, College of Medicine Zhejiang University, Hangzhou, China.
针对性下一代测序 (tNGS) 为诊断肠结核 (ITB) 提供了一种高度敏感和特定的方法. 这种先进的技术有效地区分了ITB和克罗恩病的潜在结核病感染,这在流行地区至关重要.
科学领域:
- 胃肠病学 胃肠病学
- 传染性疾病 传染性疾病
- 分子诊断学 分子诊断
背景情况:
- 在结核病流行地区,区分肠结核病 (ITB) 和克罗恩氏病 (CD) 与潜在结核感染 (LTBI) 很困难.
- 准确的诊断对于适当的治疗和患者的结果至关重要.
研究的目的:
- 评估针对ITB的目标下一代测序 (tNGS) 的诊断效率.
- 评估tNGS能够区分ITB与LTBI的CD的能力.
主要方法:
- 对100名患有肠道的患者进行前性研究 (2020年9月至2023年12月),并进行了积极的干扰素-玛释放试验.
- 将新鲜活检组织的tNGS与AFB染色,TB-PCR和颗粒瘤检测进行比较.
- 通过治疗反应和临床评估确认ITB诊断.
主要成果:
- tNGS对ITB显示了83%的灵敏度和100%的特异性.
- tNGS的灵敏度明显超过了AFB染色,TB-PCR和颗粒瘤检测 (p <0.05).
- 结合临床因素和tNGS,提高了对97%的敏感性;没有任何LTBI患者的CD检测呈阳性.
结论:
- tNGS是ITB的高度敏感和特定的诊断工具.
- tNGS在检测ITB和将其与LTBI的CD区分开来方面表现优于传统方法.
- tNGS有助于快速和准确的诊断,特别是在结核病负担较高的地区.
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