Document Detail

A search for biomarkers as diagnostic tools for food allergy: a pilot study in peanut-allergic patients.
MedLine Citation:
PMID:  21109745     Owner:  NLM     Status:  In-Data-Review    
Background: The impact of peanut allergy is large and accidental ingestion of peanut can lead to severe reactions. Currently used diagnostic tests, such as skin prick tests (SPT) and determination of specific immunoglobulins (IgE) have, however, limited sensitivity and specificity. Therefore, new tools have to be developed to improve the accuracy of the diagnostic work-up of food-allergic patients. Comprehensive metabolite analysis may provide biomarkers for diagnosing food allergy as metabolite levels reflect actual physiological conditions. We investigated whether metabolites can be found that discriminate between peanut-allergic patients and non-peanut-allergic subjects. Such metabolites may be used for future diagnostic purposes. Methods: Plasma and saliva samples were obtained from 23 participants (12 peanut allergic and 11 peanut tolerant) prior to and after a peanut challenge and measured with (1)H nuclear magnetic resonance (NMR) spectroscopy with subsequent multivariate data analysis. Results: Clear differences were observed between NMR spectra of peanut-allergic and peanut-tolerant subjects in plasma as well as saliva. Allergic patients already showed aberrant metabolite levels prior to peanut ingestion, thus before the onset of allergic reactions. Conclusion: This pilot study shows that aberrant metabolite levels as determined by NMR in combination with multivariate statistics may serve as novel biomarkers for food allergy.
Kim A B M Peeters; Robert-Jan A N Lamers; André H Penninks; Edward F Knol; Carla A F M Bruijnzeel-Koomen; Joop H J van Nesselrooij; André C Knulst
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Publication Detail:
Type:  Journal Article     Date:  2010-11-25
Journal Detail:
Title:  International archives of allergy and immunology     Volume:  155     ISSN:  1423-0097     ISO Abbreviation:  Int. Arch. Allergy Immunol.     Publication Date:  2011  
Date Detail:
Created Date:  2011-04-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9211652     Medline TA:  Int Arch Allergy Immunol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  23-30     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 S. Karger AG, Basel.
Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands.
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