非侵入性,基于微生物组的炎症性肠病诊断
Jiaying Zheng1,2, Qianru Sun1,2, Mengjing Zhang1
1Microbiota I-Center (MagIC), Hong Kong, China.
Nature medicine
|October 4, 2024
概括
研究人员开发了一种新的基于微生物组的炎症性肠病 (IBD) 诊断测试. 这种测试可以识别特定的肠道细菌,为诊断IBD提供了一个有希望的非侵入性工具,包括性结肠炎和克罗恩病.
科学领域:
- 微生物组研究的研究.
- 胃肠病学 胃肠病学
- 诊断的发展 诊断的发展
背景情况:
- 人们越来越认识到肠道微生物群与炎症性肠病 (IBD) 的关联,但其诊断潜力仍然在很大程度上未得到开发.
- 目前IBD的诊断方法可能是侵入性的,可能无法完全捕捉疾病的复杂性.
研究的目的:
- 开发和验证一种基于微生物的IBD诊断测试.
- 为了确定与IBD相关的特定细菌物种,用于诊断建模.
- 评估微生物组测试与现有生物标志物的性能.
主要方法:
- 来自5979个便样本 (IBD和对照) 的元基因组数据分析.
- 开发使用精选细菌物种用于性结肠炎和克罗恩病的诊断模型.
- 诊断模型在不同种族群体的验证.
- 创建一个多重滴滴数字聚合酶链反应 (ddPCR) 试验.
主要成果:
- 诊断模型在区分IBD与对照时实现了曲线下的面积 (AUC) >0.90.
- 模型在跨种族验证队伍中表现一致.
- 基于ddPCR的测试在区分IBD亚型时,与便calprotectin相比,显示出更高的性能.
结论:
- 确定了与IBD相关的普遍细菌,形成了多细菌生物标志物面板的基础.
- 开发的基于微生物组的测试显示了作为IBD的非侵入性诊断工具的巨大潜力.
- 这种方法可以提高炎症性肠病的早期和准确诊断.
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