結核の診断と治療のモニタリングのための尿中のリポアラビノマンンの値
Yiqun Xiong1, Zhihong Shen1, Bo Dong1
1Department of Infection, Ningbo Yinzhou No.2 Hospital, Ningbo, China.
Frontiers in microbiology
|September 5, 2025
まとめ
尿中のリポアラビノナン (LAM) は,結核 (TB) の診断能力が適度であり,治療反応のモニタリングに優れている. 統合されたLAMモデルは 早期治療の成功を予測し 個別化された結核治療を可能にします
科学分野:
- 臨床診断と感染症バイオマーカー
- 結核の診断と治療の監視
- 感染症におけるバイオマーカーの発見と検証
背景:
- 尿中のリポアラビノマン (LAM) 測定は,結核の診断と治療のモニタリングのための有望なツールです.
- 酸性バチリ (AFB),ミコバクテリア成長指標管 (MGIT),GeneXpertなどの既存の診断方法は限界があります.
- LAMの臨床的有用性は,層分かれした結核患者集団における確立された方法と比較して評価する必要があります.
研究 の 目的:
- 結核の検出のためのAFB,MGIT,GeneXpertと比較して尿路LAMの診断性能を評価する.
- 結核治療中のLAMの早期治療監視能力を評価する.
- 階層化された結核集団における LAM の臨床的有用性を確立し,最適なモニタリング戦略を特定する.
主な方法:
- AFB/MGIT ステータスによって階層化された結核患者の前向きなコホート研究.
- 複合基準基準 (CRS) による診断精度評価
- 12週間の治療中に尿中のLAMを連続的に測定し,結果を見極める.
- 値決定と予測因子識別のための受信機操作特性 (ROC),カプラン・マイヤー (KM),コックス回帰分析.
主要な成果:
- 尿のLAMは,CRSに対する診断感度が58. 75%であり,MGIT培養と比較できる.
- LAMは治療初期モニタリング (11. 54~51. 72%) で持続的な陽性性を示し,他の方法よりも優れていた.
- ベースラインのPreLAMと週4の変化 (ΔLAM) を用いた組合せモデルでは,12週間の変換で高い予測値 (AUC 0. 871- 0. 943) が得られ,独立予測因子としてΔLAMが用いられました.
結論:
- 尿路のLAMは結核の診断と 治療のダイナミックモニタリングの 双重バイオマーカーとして機能します
- LAMは治療の有効性を反映した早期の細菌反応の貴重な信号を提供します.
- PreLAM+ΔLAMモデルは,個別化された結核治療戦略をサポートし,治療反応の早期評価を可能にします.
関連する概念動画
01:28Pulmonary Tuberculosis V
236
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...
236
01:26Pulmonary Tuberculosis IV
196
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...
196
01:31Pulmonary Tuberculosis III
438
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:
438
01:29Pulmonary Tuberculosis I
321
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...
321
01:28Pulmonary Tuberculosis II
339
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...
339