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The value of mucosal allergen challenge for the diagnosis of food allergy

Kvenshagen, Bente K.; Jacobsen, Morten

Current Opinion in Allergy & Clinical Immunology: June 2013 - Volume 13 - Issue 3 - p 268–272
doi: 10.1097/ACI.0b013e32836093f6
OUTCOME MEASURES: Edited by Henry Milgrom and Ralph Mosges

Purpose of review: The incidence of food allergy is increasing. Correct diagnosis is dependent on food challenges, which are not always performed, but more often based on history, skin prick test and specific IgE, leading to possible misdiagnoses. Mucosal provocation tests have been proposed as possible new diagnostic tools during recent decades.

Recent findings: The databases EMBASE, PUBMED and Cochraine Review were used. Seven full text articles fulfilled criteria for mucosal challenge and food allergy, only one from the last 12 months. Conjunctival, nasal, buccal, gastric and coecal/rectal mucosa have been challenged. All authors find mucosal changes after challenge, but the lack of validation against double-blind placebo-controlled challenges makes evaluation difficult, with the exception of the conjunctival provocation test.

Summary: As most mucosal surfaces are easily available, and small amounts of allergen are needed for an obvious reaction, this tool for diagnosing food allergy is promising. Further studies are however needed.

aDepartment of Pediatrics, Oestfold Hospital Trust, Fredrikstad

bDepartment of Research and Development, Oestfold Hospital Trust, Fredrikstad, UIO, UMB, Norway

Correspondence to Bente Krane Kvenshagen, PhD, Radarveien 111 A, 1152 Oslo, Norway. Tel: +47 918 46 393; e-mail: bkvenshagen@gmail.com

Copyright © 2013 Wolters Kluwer Health, Inc. All rights reserved.