Related Experiment Video
Updated: Jun 3, 2026

09:01
The Bovine Lung in Biomedical Research: Visually Guided Bronchoscopy, Intrabronchial Inoculation and In Vivo Sampling Techniques
Published on: July 3, 2014
Exhaled breath condensate: lessons learned from veterinary medicine
Petra Reinhold1, Henri Knobloch
1Institute of Molecular Pathogenesis in the Friedrich-Loeffler-Institut (Federal Research Institute forAnimal Health), Jena, Germany. petra.reinhold@fli.bund.de
Journal of Breath Research
|March 10, 2011
Summary
Exhaled breath condensate (EBC) offers a non-invasive diagnostic tool, but standardization in collection and analysis is crucial for reliable results in both human and veterinary medicine.
Area of Science:
- Biomedical research
- Veterinary diagnostics
- Respiratory medicine
Background:
- Exhaled breath condensate (EBC) is a simple, non-invasive biological sample collected by cooling exhaled breath.
- Despite over 15 years of research, challenges remain in EBC collection, analysis, and biomarker validation.
- EBC collection has been successfully performed in various conscious domestic animals, yielding valuable insights and highlighting methodological pitfalls.
Purpose of the Study:
- To review current knowledge on EBC collection and interpretation in veterinary research.
- To identify key biomarkers and discuss challenges in their analysis.
- To emphasize the need for standardization in EBC research for reproducible data.
Main Methods:
- Literature review of published studies on EBC collection and analysis in domestic animals.
- Focus on specific biomarkers including proteins, leukotrienes, hydrogen peroxide, urea, ammonia, and pH.
- Discussion of methodological limitations and potential solutions for EBC analysis.
Main Results:
- EBC analysis holds significant potential for non-invasive diagnostics in various mammalian species.
- Studies in animals have revealed critical aspects of EBC collection, analysis, and interpretation.
- Standardization, particularly quantifying components per exhaled breath volume, is essential for overcoming limitations.
Conclusions:
- Standardized protocols for EBC collection and analysis are vital for generating reproducible and reliable data.
- Quantifying EBC components relative to exhaled breath volume is a key step towards standardization.
- Findings from veterinary studies contribute to the broader understanding of EBC research across mammalian species.
Related Concept Videos
Endoscopic Studies II: Thoracocentesis
Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Acute Respiratory Failure-V
The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Ensure that patients are monitored continuously for their response to therapy, including changes in...
The Respiratory System
The respiratory system is comprised of the organs that enable breathing. Air enters the nostrils and mouth, followed by the pharynx (throat) and larynx (voice box), which lead to the trachea (windpipe). In the thoracic cavity, the trachea splits into two bronchi that allow air to enter the lungs. The bronchi split into progressively smaller bronchioles and terminate in small groups of tiny sacs in the lungs called alveoli, where gas exchange occurs.
Breathing
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...

