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使用纳米孔向测序在高海拔地区肺结核的表征
Anyue Xia1, Qiu Zhong2, Xiaohui Yu3
1Department of Infectious Diseases, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
BMC microbiology
|January 26, 2026
概括
高海拔地区的结核病 (TB) 治愈率高,与低海拔地区相比,结核病患者的药物耐药性较低. 高度似乎降低了细菌负载,并影响了耐药性模式,需要定制的结核病控制策略.
科学领域:
- 高海拔医学 高海拔医学
- 传染病流行病学 传染病流行病学
- 基因组测序应用程序的应用
背景情况:
- 西 (西藏) 面临着高结核病 (TB) 发病率,加上极高的海拔 (≥3000m) 和缺氧,具有挑战性的诊断.
- 在高海拔环境中对结核病的临床和生物特征的理解有限.
研究的目的:
- 通过先进的测序,在高海拔地区研究肺结核病的特征.
- 来自高海拔地区的Xizang结核病患者数据与低海拔群体的数据进行比较,以评估海拔对Mycobacterium结核病生物学的影响.
主要方法:
- 纳米孔向测序方法TB-seq分析了西158名肺结核患者的唾液.
- 评估了细菌负载,耐药性基因格局和临床表型.
- 一个匹配的低海拔群 (<1000米) 被纳入比较分析.
主要成果:
- 重新治疗的病例占西的结核病患者的58.23%;I型结核病是最常见的 (79.75%).
- 细菌负载随着年龄的增长而下降,并且在重新治疗的情况下更高,与炎症标志物相关.
- 在22.78%的患者中发现了耐药突变,其中rpsL,rpoB和katG是关键基因. 与低海拔对照组相比,高海拔患者的细菌负载较低,药物耐药性降低.
结论:
- 西的结核病的特点是频繁的再治疗病例,低细菌负载和药物耐药性突变降低.
- 高度可能会抑制细菌数量,并影响特定耐药机制的选择.
- 这些发现强调了在西需要有针对性的结核病控制,考虑到环境,病原体和宿主相互作用.
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