肺结核患者肺微生物组和临床诊断的综合性研究
Hongli Sun1, Qiuyue Chen2, Dong Zhang1,3
1Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Microbiology spectrum
|June 20, 2025
概括
甲基因组下一代测序 (mNGS) 在肺结核患者中为检测Mycobacterium结核病 (MTB) 提供了高灵敏度. 将微生物组分析与mNGS集成,可以提高结核病的诊断准确性.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 传染性疾病 传染性疾病
背景情况:
- 肺结核 (TB) 诊断依赖于各种方法,其准确性各不相同.
- 甲基因组下一代测序 (mNGS) 是一种用于病原体检测的新兴技术.
- 肺微生物组对使用mNGS进行结核病诊断的影响需要进一步调查.
研究的目的:
- 评估mNGS在肺结核患者中检测Mycobacterium结核病 (MTB) 的诊断性能.
- 评估肺微生物群对mNGS诊断准确性的影响.
- 探索肺部微生物组资料与结核病诊断之间的关联.
主要方法:
- 从236名肺部感染患者中采集了支气管洗液样本.
- 使用mNGS检测MTB并分析肺微生物组.
- 将mNGS的诊断性能与传统方法 (X-pert,培养,RT-PCR,唾液涂抹) 相比较.
- 生物信息分析用于评估微生物群多样性,并确定MTB感染的预测因素.
主要成果:
- 在所有测试方法中,mNGS表现出最高的灵敏度 (73.33%).
- mNGS在236个样本中实现了98.54%的特异性,其中3个假阳性.
- 在结核病患者和对照人群之间观察到肺微生物群α-多样性和β-多样性的显著差异.
- 香农和Chao1指数是MTB感染的显著预测指标,AUC为0.765.
结论:
- 与传统方法相比,mNGS显示了肺结核的优越诊断潜力.
- 肺微生物组分析提供了宝贵的见解,可以提高mNGS结核病的诊断准确性.
- 建议将湿实验室技术与生物信息学分析相结合,以使用mNGS改善结核病诊断.
相关概念视频
01:26Pulmonary Tuberculosis IV
209
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
209
01:28Pulmonary Tuberculosis V
249
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
249
01:29Pulmonary Tuberculosis I
335
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
335
01:28Pulmonary Tuberculosis II
387
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
387
01:31Pulmonary Tuberculosis III
458
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
458
01:26Sputum Studies I: Gram Stain, cytology, and Acid-fast smear and culture
304
Sputum studies are a critical part of diagnosing and treating numerous respiratory conditions. These studies involve obtaining sputum samples for analysis to identify pathogenic organisms and assess the presence of abnormal cells indicative of malignant conditions. This lesson will delve into three fundamental sputum studies: Gram Stain, Cytology, and Acid-fast Smear and Culture.
Gram Stain
The Gram Stain is an integral part of sputum studies. It involves the staining of sputum, which permits...
Gram Stain
The Gram Stain is an integral part of sputum studies. It involves the staining of sputum, which permits...
304