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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Neuhaus, Stephanie Seifert, Luzia Vautz, Wolfgang Nolte, Jürgen Bufe, Albrecht Peters, Marcus |
| Description | Country affiliation: Germany Author Affiliation: Neuhaus S ( Department of Experimental Pneumology, Ruhr-University Bochum, Bochum, Germany.) |
| Abstract | BACKGROUND: A multi-capillary column ion mobility spectrometer (MCC/IMS) was developed to provide a method for the noninvasive diagnosis of lung diseases. The possibility of measuring the exhaled breath of mice was evaluated previously. The aim of the present study was to reveal whether mice affected by airway inflammation can be identified via MCC/IMS. METHODS: Ten mice were sensitized and challenged with ovalbumin to induce allergic airway inflammation. The breath and volatile compounds of bronchoalveolar lavage fluid (BALF) were measured by MCC/IMS. Furthermore, histamine, nitric oxide, and arachidonic acid were determined as inflammatory markers in vitro. RESULTS: Six volatile molecules were found in the BALF headspace at a significantly higher concentration in mice with airway inflammation compared with healthy animals. The concentration of substances correlated with the numbers of infiltrating eosinophilic granulocytes. However, substances showing a significantly different concentration in the BALF headspace were not found to be different in exhaled breath. Histamine and nitric oxide were identified by MCC/IMS in vitro but not in the BALF headspace or exhaled breath. CONCLUSION: Airway inflammation in mice is detectable by the analysis of the BALF headspace via MCC/IMS. Molecules detected in the BALF headspace of asthmatic mice at a higher concentration than in healthy animals may originate from oxidative stress induced by airway inflammation. As already described for humans, we found no correlation between the biomarker concentration in the BALF and the breath of mice. We suggest using the model described here to gain deeper insights into this discrepancy. |
| File Format | HTM / HTML |
| ISSN | 87507587 |
| e-ISSN | 15221601 |
| Journal | Journal of Applied Physiology |
| Issue Number | 4 |
| Volume Number | 111 |
| Language | English |
| Publisher | American Physiological Society |
| Publisher Date | 2011-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Physiology Asthma Metabolism Bronchoalveolar Lavage Fluid Chemistry Exhalation Physiology Spectrum Analysis Animals Arachidonic Acid Disease Models, Animal Granulocytes Histamine Inflammation Mice Mice, Inbred Balb C Nitric Oxide Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Physiology (medical) Sports Science |
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