Document Detail


Single-cycle bronchoalveolar lavage to determine solute concentrations in epithelial lining fluid.
MedLine Citation:
PMID:  8484634     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An accurate and reproducible measure of solute concentration of lung epithelial lining fluid (ELF) by bronchoalveolar lavage would be valuable in lung research and in patient care. Measurements of the albumin/total protein ratio in a previously proposed rewash lavage procedure showed that albumin enters the lavage fluid. Therefore, the rewash lavage may measure ELF volume accurately, but it overestimates ELF protein concentration (PELF). To avoid problems of solute exchange, we examined five sequential fractions of lavage fluid obtained from sheep after a single 60-ml lavage containing a 99mTcO4- tracer. Assays of albumin, 99mTcO4-, total protein, and endogenous urea concentrations allowed calculation of PELF from each fraction. PELF was 8 +/- 4 mg/ml when calculated from dilution of either endogenous urea or 99mTcO4- in fractions collected after the first 15 to 20 ml. Paired lavages provided a reproducible measure of PELF (SD, 1.2 mg/ml) that was unaffected by any solute exchange that occurred during the 40-s procedure. Accuracy was verified by comparisons of lung lymph and ELF protein concentrations during high pressure lung edema in anesthetized sheep. The single-cycle lavage procedure is an accurate and reproducible procedure for measuring PELF.
Authors:
B T Peterson; D E Griffith; R W Tate; S J Clancy
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American review of respiratory disease     Volume:  147     ISSN:  0003-0805     ISO Abbreviation:  Am. Rev. Respir. Dis.     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-06-03     Completed Date:  1993-06-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370523     Medline TA:  Am Rev Respir Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1216-22     Citation Subset:  AIM; IM    
Affiliation:
Department of Physiology, University of Texas Health Center, Tyler 75710.
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MeSH Terms
Descriptor/Qualifier:
Albumins / analysis
Animals
Bronchoalveolar Lavage Fluid / chemistry*
Epithelium / chemistry
Lung / chemistry*
Methods
Proteins / analysis
Sheep
Chemical
Reg. No./Substance:
0/Albumins; 0/Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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