98%
921
2 minutes
20
Purpose Of Review: There is a need for better noninvasive tools to diagnose interstitial lung disease (ILD) and predict disease course. Volatile organic compounds present in exhaled breath contain valuable information on a person's health and may be a novel biomarker in ILD. In this review, we will give an overview of the basic principles of breath analysis, summarize the available evidence in ILD, and discuss future perspectives.
Recent Findings: An increasing number of studies on exhaled breath analysis were performed over the last decade in patients with ILD, using two methods for exhaled breath analysis: gas chromatography-mass spectrometry and electronic nose technology. Most studies showed high accuracy for diagnosis of ILD, but study design and methods widely varied. Studies investigating the potential of electronic nose technology to predict treatment response and disease behavior are ongoing.
Summary: The majority of studies using exhaled breath analysis in ILD show promising results for diagnostic purposes, but validation studies are lacking. Larger prospective longitudinal studies using standardized methods are needed to collect the evidence required for developing an approved diagnostic medical test.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10399937 | PMC |
http://dx.doi.org/10.1097/MCP.0000000000000978 | DOI Listing |
J Allergy Clin Immunol Pract
September 2025
Associate Professor of Medicine, Medical Director of Clinical Asthma Research, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center. Electronic address:
Asthma and allergic diseases are heterogeneous conditions driven by complex immunological pathways, with type 2 (T2) inflammation being a key but not exclusive component. Advances in immunology have spurred interest in a breadth of mechanisms and innovative therapeutic strategies, including novel targets, extended dosing intervals, and combined-target therapies. This clinical commentary provides a critical overview of ongoing clinical trials and emerging evidence supporting the use of these therapies in asthma and other allergic conditions.
View Article and Find Full Text PDFClin Transl Gastroenterol
September 2025
Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China.
Background: Although colorectal cancer (CRC) screening has been incorporated into organized programs in many countries, a universally accepted noninvasive and efficient screening method remains unavailable.
Objective: This study aimed to assess the diagnostic potential of volatile organic compounds (VOCs) in exhaled breath via electronic nose (eNose) for noninvasive CRC detection.
Methods: The Cyranose320 sensor device was used to collect and analyze breath samples.
Chem Sci
August 2025
Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology Tianjin 300384 P. R. China
Photoactivated sensors offer a safe, low-power alternative to thermal sensors, yet their performance against trace concentrations of weakly reactive biomarkers is fundamentally crippled by the rapid energy loss of photogenerated carriers electron relaxation into the band-edge. This process limits the number of electrons available for sensing. Here, we overcome this limitation by introducing a new principle: non-equilibrium hot-electron-mediated chemoresistance.
View Article and Find Full Text PDFAnal Chem
September 2025
College of Environment and Climate, Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China.
Blood is a widely used sample type in metabolomics but often loses volatile compounds during analysis. In contrast, exhaled breath offers a noninvasive and complementary matrix that retains these volatiles. However, the accuracy of metabolite identification in breath remains a key challenge.
View Article and Find Full Text PDFComput Methods Programs Biomed
November 2025
Mechanical, Manufacturing and Mechatronic Engineering, School of Engineering, RMIT University, Bundoora, Victoria 3083, Australia.
Background And Objective: During exhalation, complex geometry in the larynx generates the pharyngeal jet, where higher velocity air is directed to the rear of the airway, influencing airflow downstream in the nasal passage. This study investigates the impact of boundary condition settings on the accuracy of airflow simulations in truncated airway geometries during exhalation, focusing on the nasopharynx and nasal passage. In addition to traditional inlet profiles, we tested a new method of remapping a profile from a complete airway to a truncated airway.
View Article and Find Full Text PDF