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Research in veterinary science1993; 55(1); 52-56; doi: 10.1016/0034-5288(93)90033-c

Evaluation of urea and albumen as endogenous markers of dilution of equine bronchoalveolar lavage fluid.

Abstract: The urea and albumen dilution techniques for standardising the variable concentrations of pulmonary epithelial lining fluid (PELF) in bronchoalveolar lavage fluid (BALF) samples were evaluated in horses. Both techniques proved satisfactory and were of equal accuracy. Albumen adjusted BALF cell counts were significantly higher than PELF cell counts. BALF from normal horses contained, on average, 0.4 per cent PELF (range 0.1 to 1.0 per cent), as determined by the urea dilution technique.
Publication Date: 1993-07-01 PubMed ID: 8378613DOI: 10.1016/0034-5288(93)90033-cGoogle Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

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This study evaluates the effectiveness of using urea and albumin to standardize varying concentrations of pulmonary epithelial lining fluid in bronchoalveolar lavage fluid samples from horses. The team found that both methods work sufficiently well and accurate.

Research Objective and Methodology

  • The research aimed to assess urea and albumen’s efficacy as endogenous markers to standardize differing concentrations of pulmonary epithelial lining fluid (PELF) in bronchoalveolar lavage fluid (BALF) samples from horses.
  • The researchers utilized urea and albumen dilution methods for this experiment. By comparing the cell count adjusted using albumen in BALF samples, they checked the performance and accuracy of these techniques.

Research Findings and Conclusion

  • The study discovered that both urea and albumen dilution techniques demonstrated equal accuracy and were satisfactory for the task at hand.
  • They noticed a significant difference in the cell counts, with albumen-adjusted BALF cell counts being considerably higher than PELF cell counts.
  • The researchers found that bronchoalveolar lavage fluid from healthy horses contained an average of 0.4% PELF, estimated using the urea dilution technique.
  • You could observe this amount in a range from a minimum of 0.1% to a maximum of 1.0% PELF.

Significance of the Research

  • This research provides valuable insights for equine health, as bronchoalveolar lavage fluid analysis is a common diagnostic tool used in equine medicine to evaluate lung health.
  • Standardized methodology for processing and evaluating these samples is crucial for accurate diagnosis and treatment.
  • The research provides a further understanding of how the variations in the concentrations of PELF in BALF can be effectively standardized using urea and albumen, improving the accuracy of the analysis.

Cite This Article

APA
McGorum BC, Dixon PM, Halliwell RE, Irving P. (1993). Evaluation of urea and albumen as endogenous markers of dilution of equine bronchoalveolar lavage fluid. Res Vet Sci, 55(1), 52-56. https://doi.org/10.1016/0034-5288(93)90033-c

Publication

ISSN: 0034-5288
NlmUniqueID: 0401300
Country: England
Language: English
Volume: 55
Issue: 1
Pages: 52-56

Researcher Affiliations

McGorum, B C
  • Department of Veterinary, Clinical Studies, Royal (Dick) School of Veterinary Studies, Roslin, Midlothian.
Dixon, P M
    Halliwell, R E
      Irving, P

        MeSH Terms

        • Animals
        • Biomarkers / analysis
        • Bronchoalveolar Lavage Fluid / chemistry
        • Bronchoalveolar Lavage Fluid / cytology
        • Bronchoalveolar Lavage Fluid / veterinary
        • Cell Count
        • Horses
        • Leukocytes / cytology
        • Serum Albumin / analysis
        • Urea / analysis
        • Urea / blood

        Citations

        This article has been cited 5 times.
        1. Bercier M, Langlois I, Dunn M, Hélie P, Burns P, Gara-Boivin C. Cytological analysis of bronchoalveolar lavage fluid acquired by bronchoscopy in healthy ferrets: A pilot study.. Can J Vet Res 2016 Jan;80(1):74-80.
          pubmed: 26733735
        2. Richard EA, Depecker M, Defontis M, Leleu C, Fortier G, Pitel PH, Couroucé-Malblanc A. Cytokine concentrations in bronchoalveolar lavage fluid from horses with neutrophilic inflammatory airway disease.. J Vet Intern Med 2014 Nov-Dec;28(6):1838-44.
          doi: 10.1111/jvim.12464pubmed: 25269933google scholar: lookup
        3. Khol-Parisini A, van den Hoven R, Leinker S, Hulan HW, Zentek J. Effects of feeding sunflower oil or seal blubber oil to horses with recurrent airway obstruction.. Can J Vet Res 2007 Jan;71(1):59-65.
          pubmed: 17193883
        4. Laan TT, Bull S, van Nieuwstadt RA, Fink-Gremmels J. The effect of aerosolized and intravenously administered clenbuterol and aerosolized fluticasone propionate on horses challenged with Aspergillus fumigatus antigen.. Vet Res Commun 2006 Aug;30(6):623-35.
          doi: 10.1007/s11259-006-3346-9pubmed: 16838204google scholar: lookup
        5. Mills PC, Chen Y, Hills YC, Hills BA. Differences in surfactant lipids collected from pleural and pulmonary lining fluids.. Pharm Res 2005 Nov;22(11):1926-30.
          doi: 10.1007/s11095-005-7677-ypubmed: 16132340google scholar: lookup