Document Detail


Double-blind food challenge in the diagnosis of food sensitivity in the adult.
MedLine Citation:
PMID:  6179975     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study is an attempt to determine the role of double-blind food challenge (DBFC) in suspected food sensitivity in the adult as compared wih established tests of food allergy, including the skin test, RAST, and leukocyte histamine release (LHR) to specific food antigens. Twenty-two subjects (ages 18 to 67) with histories of reactions to foods were challenged with freeze-dried food or placebo in opaque dye-free capsules, in increasing doses over a 90 min span to a total of 13 to 15 gm. This was repeated twice at weekly intervals by similar DBFC. DBFC was preceded by skin testing and venapuncture for RAST and LHR studies. Patients were kept under observation for 2 hr, after which each was asked to maintain a detailed diary of related symptoms and food ingested over the following week. Of 46 DBFCs, 13 (21%) were positive. The correlation with positive skin tests and positive DBFC was 4/13 (30%). The correlation with positive LHR and positive DBFC was lower at 2/13 (15%), and 1/13 (7.6%) with RAST. We concluded that DBFC is an effective test of adult food sensitivity compared with tests usually performed and should be used when the diagnosis is in doubt.
Authors:
M Bernstein; J H Day; A Welsh
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of allergy and clinical immunology     Volume:  70     ISSN:  0091-6749     ISO Abbreviation:  J. Allergy Clin. Immunol.     Publication Date:  1982 Sep 
Date Detail:
Created Date:  1982-10-21     Completed Date:  1982-10-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1275002     Medline TA:  J Allergy Clin Immunol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  205-10     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Allergens / administration & dosage*
Asthma / complications
Decapoda (Crustacea) / immunology
Double-Blind Method
Female
Food Hypersensitivity / complications,  diagnosis*,  etiology
Histamine Release
Humans
Male
Radioallergosorbent Test
Rhinitis / complications
Skin Tests
Chemical
Reg. No./Substance:
0/Allergens

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


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