Journal article
Endothelin-1 concentrations in bronchoalveolar lavage fluid of cats with experimentally induced asthma
Journal of Veterinary Internal Medicine, Vol.27(4), pp.982-984
2013
Abstract
Background
There is a need for biomarkers for diagnosis, therapeutic monitoring, and prognosis for asthma in cats. Endothelin‐1 (ET‐1) is implicated in the pathogenesis of inflammatory airway diseases in other species but not the cat.
Objective
To conduct a prospective experimental study to show that experimentally asthmatic cats, but not control cats without airway inflammation, would have increased concentrations of ET in BALF.
Animals
Eleven healthy, adult research cats.
Methods
Prospective experimental study. Six healthy cats without airway inflammation were used as controls. Asthma was induced using Bermuda grass allergen (BGA) in 5 cats. Collection of BALF for total nucleated cell and differential counts was performed. The concentration of ET‐1 in cell‐free BALF samples was determined. Data were analyzed using a Mann–Whitney U‐test with P < .05 considered significant.
Results
The median [range] BALF total cell numbers, eosinophil numbers, and eosinophil percentages were significantly higher in the cats following experimental induction of asthma (1,870 cells/μL [1,450–3,440], 711 cells/μL [356–1,686] and 38% [20–49]) compared to baseline control parameters (462 cells/μL [239–780], 18 cells/μL [18–62] and 3.5% [0–8]) (P < .01). The median [range] BALF ET concentration was also significantly higher after induction of asthma (1.393 fmol/mL[0.977–2.247]) compared to healthy control cats (0.83250 fmol/mL [0.625–1.038]) (P = .012).
Conclusions and Clinical Importance
This study suggests that BAL ET‐1 concentration can be used to differentiate normal cats from those with experimentally induced asthma. If the same holds true for cats with naturally developing asthma, BAL ET‐1 may prove a useful diagnostic biomarker for asthma.
Details
- Title
- Endothelin-1 concentrations in bronchoalveolar lavage fluid of cats with experimentally induced asthma
- Authors/Creators
- C.R. Sharp (Author/Creator)T.M. Lee-Fowler (Author/Creator)C.R. Reinero (Author/Creator)
- Publication Details
- Journal of Veterinary Internal Medicine, Vol.27(4), pp.982-984
- Publisher
- Wiley
- Identifiers
- 991005544240607891
- Copyright
- © 2013 by the American College of Veterinary Internal Medicine
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.127 Molecular & Cell Biology - Pharmacology
- 1.127.1303 Endothelin
- Web Of Science research areas
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science