Document Detail


Metabolomics of volatile organic compounds in cystic fibrosis patients and controls.
MedLine Citation:
PMID:  20351658     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In cystic fibrosis (CF), airway inflammation causes an increased production of reactive oxygen species, responsible for degradation of cell membranes. During this process, volatile organic compounds (VOCs) are formed. Measurement of VOCs in exhaled breath of CF patients may be useful for the assessment of airway inflammation. This study investigates whether "metabolomics' of VOCs could discriminate between CF and controls, and between CF patients with and without Pseudomonas colonization. One hundred five children (48 with CF, 57 controls) were included in this study. After exhaled breath collection, samples were transferred onto tubes containing active carbon to adsorb and stabilize VOCs. Samples were analyzed by gas chromatography-time of flight-mass spectrometry to assess VOC profiles. Analysis showed that 1099 VOCs had a prevalence of at least 7%. By using 22 VOCs, a 100% correct identification of CF patients and controls was possible. With 10 VOCs, 92% of the subjects were correctly classified. The reproducibility of VOC measurements with a 1-h interval was very good (match factor 0.90 +/- 0.038). We conclude that metabolomics of VOCs in exhaled breath was possible in a reproducible way. This new technique was able to discriminate not only between CF patients and controls but also between CF patients with or without Pseudomonas colonization.
Authors:
Charlotte M H H T Robroeks; Joep J B N van Berkel; Jan W Dallinga; Quirijn Jöbsis; Luc J I Zimmermann; Han J E Hendriks; Miel F M Wouters; Chris P M van der Grinten; Kim D G van de Kant; Frederik-Jan van Schooten; Edward Dompeling
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pediatric research     Volume:  68     ISSN:  1530-0447     ISO Abbreviation:  Pediatr. Res.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-16     Completed Date:  2010-09-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0100714     Medline TA:  Pediatr Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  75-80     Citation Subset:  IM    
Affiliation:
Department of Pediatric Pulmonology, Maastricht University Medical Centre, 6202 AZ Maastricht, The Netherlands. c.bootsma.robroeks@mumc.nl
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Breath Tests / methods*
Child
Child, Preschool
Cross-Sectional Studies
Cystic Fibrosis / metabolism*,  microbiology
Gas Chromatography-Mass Spectrometry / methods,  standards
Humans
Metabolomics / methods*
Pseudomonas aeruginosa / metabolism
Reproducibility of Results
Respiration
Volatile Organic Compounds / chemistry,  metabolism*
Young Adult
Chemical
Reg. No./Substance:
0/Volatile Organic Compounds

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


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