Document Detail


Food patch testing for irritable bowel syndrome.
MedLine Citation:
PMID:  23102771     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The traditional classification of irritable bowel syndrome (IBS) as a functional disorder has been challenged in recent years by evidence of ongoing low-grade gastrointestinal tract inflammation. Inflammation may alter gastrointestinal motility and thus be central to the pathogenesis of IBS. Many foods and food additives are known to cause allergic contact dermatitis. We hypothesize that allergenic foods and food additives may elicit a similar allergic reaction in the gastrointestinal tract, giving rise to symptoms suggestive of IBS. OBJECTIVE: We sought to determine whether skin patch testing to a panel of foods and food additives may identify food allergens that may be responsible for symptoms of IBS. METHODS: We performed skin patch testing to common allergenic foods and food additives on individuals with a history of or symptoms suggestive of IBS. We used patch test-guided avoidance diets to determine whether avoidance alleviates IBS symptoms. RESULTS: Thirty of the 51 study participants showed at least 1 doubtful or positive patch test result. Fourteen of the participants reported symptomatic improvement, ranging from slight to great, upon avoidance of the foods/food additives to which they reacted. LIMITATIONS: Double-blind study design, inclusion of only patients with active IBS, larger sample size, more balanced gender distribution, testing of more foods/food additives, and longer duration of and more precise quantification of response to dietary avoidance are suggested for future studies. CONCLUSION: Allergic contact enteritis to ingested foods, food additives, or both may contribute to IBS symptoms. Patch testing may be useful in identifying the causative foods.
Authors:
Michael B Stierstorfer; Christopher T Sha; Marvin Sasson
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-24
Journal Detail:
Title:  Journal of the American Academy of Dermatology     Volume:  -     ISSN:  1097-6787     ISO Abbreviation:  J. Am. Acad. Dermatol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7907132     Medline TA:  J Am Acad Dermatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 American Academy of Dermatology, Inc. Published by Mosby, Inc. All rights reserved.
Affiliation:
East Penn Dermatology PC, North Wales, Pennsylvania; University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania. Electronic address: mstierstorfer@eastpennderm.com.
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