结核病的传染性与明显的临床和炎症概况有关
David Horne1, Videlis Nduba2, Lilian Njagi2
1University of Washington.
Research square
|February 8, 2024
概括
识别高度传染性结核病 (TB) 患者对于控制至关重要. 这项研究发现,传染性与特定的炎症标记物和宿主基因表达特征有关,提供了新的诊断潜力.
科学领域:
- * 传染病 传染病
- * 免疫学 免疫学
- * * 公共卫生 公共卫生
背景情况:
- * 结核病 (TB) 控制受到了解传播和识别感染个体的差距的阻碍.
- *目前结核病传染性的生物标志物不足,限制了干预措施的发展.
- *咳气溶培养物在预测结核病传播方面表现有前途,但需要进一步验证.
研究的目的:
- * 调查肺结核高度传染性个体是否表现出明显的炎症标志物和转录特征.
- * 确定与Mycobacterium tuberculosis (Mtb) 气溶和传播相关的临床,微生物学和免疫学因素.
- * 探索宿主炎症特征和基因表达的潜力,以识别传染性结核病患者.
主要方法:
- * 一项前性,纵向性研究,涉及142名在肯尼亚内罗毕接受过治疗的肺结核患者.
- *使用咳气溶采样系统来评估Mtb气溶化.
- * 评估了临床,微生物学 (细菌负担),免疫学 (IGRA,IFNγ水平),炎症标志物 (C反应蛋白,唾液细胞因子) 和全血转录特征.
主要成果:
- *有气溶培养阳性患者的接触者更有可能具有积极的干扰素马释放试验 (IGRAs).
- *较高的细菌负担,年轻的年龄和更大的上臂周长与阳性气溶培养相关.
- * 血清C-反应蛋白,唾液细胞因子和治疗前全血转录特征的升高与气溶培养状态相关,独立于细菌负荷.
结论:
- *结核病的传染性与特定的流行病学特征和炎症特征有关.
- * 主体炎症概况和转录特征可以作为生物标志物来识别高度传染性结核病个体.
- * 结果为结核病控制提供了潜在的新公共卫生工具,并对结核病原体的洞察力.
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