PMID- 25290573 OWN - NLM STAT- MEDLINE DCOM- 20160921 LR - 20151215 IS - 2042-3306 (Electronic) IS - 0425-1644 (Linking) VI - 48 IP - 1 DP - 2016 Jan TI - A commercially available immunoglobulin E-based test for food allergy gives inconsistent results in healthy ponies. PG - 109-13 LID - 10.1111/evj.12369 [doi] AB - REASONS FOR PERFORMING STUDY: Commercial immunoglobulin E (IgE)-based tests are available for diagnosis of food allergies and are commonly used in equine practice. However, these tests have been proven unreliable as a screening method in man and other species, but not critically evaluated in equids. Therefore, a commercially available IgE-based test for horses was evaluated. OBJECTIVES: To evaluate the consistency of the results obtained with a commercially available IgE-based test for food allergy diagnosis in ponies (Phase I) and to subject ponies to a provocation trial with the presumed allergens (Phase II). STUDY DESIGN: Allergen screening followed by experimental food provocation trials in healthy ponies. METHODS: Blood samples of 17 healthy Shetland ponies were taken at 2 different time points, sent blinded to a commercial laboratory for screening of common food allergens and the results were evaluated for consistency (Phase I). Ponies that were positive for food allergens were consecutively challenged orally with each allergen separately for 14 days (Phase II). A washout period of one week was applied in ponies with multiple positive results. Clinical parameters and serum amyloid A were monitored during the provocation trial. RESULTS: Only 7/17 ponies were negative on the IgE-based test at the 2 time points, 3 had positive results twice but only one tested positive twice for the same food allergen. No abnormalities were noted during the provocation trials. CONCLUSIONS: This study demonstrated that this IgE-based test is not a reliable screening tool for food allergy in healthy equids. CI - (c) 2015 EVJ Ltd. FAU - Dupont, S AU - Dupont S AD - Laboratory of Animal Nutrition, Ghent University, Belgium. FAU - De Spiegeleer, A AU - De Spiegeleer A AD - Laboratory of Animal Nutrition, Ghent University, Belgium. FAU - Liu, D J X AU - Liu DJ AD - Laboratory of Animal Nutrition, Ghent University, Belgium. FAU - Lefere, L AU - Lefere L AD - Department of Large Animal Internal Medicine, Ghent University, Belgium. FAU - van Doorn, D A AU - van Doorn DA AD - Cavalor Equine Nutrition Research, Drongen, Belgium. AD - Department of Nutrition, Faculty of Veterinary Medicine, Utrecht, The Netherlands. FAU - Hesta, M AU - Hesta M AD - Laboratory of Animal Nutrition, Ghent University, Belgium. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150128 PL - United States TA - Equine Vet J JT - Equine veterinary journal JID - 0173320 RN - 0 (Allergens) RN - 37341-29-0 (Immunoglobulin E) SB - IM CIN - Equine Vet J. 2016 Jan;48(1):13-4. PMID: 26663407 MH - Allergens/*immunology MH - Animal Feed MH - Animals MH - Food Hypersensitivity/diagnosis/*veterinary MH - Horse Diseases/*diagnosis MH - Horses MH - *Immunoassay MH - Immunoglobulin E/*immunology MH - Male MH - Reproducibility of Results MH - Sensitivity and Specificity OTO - NOTNLM OT - food allergy OT - food provocation test OT - horse OT - immunoglobulin E OT - nutrition OT - pony EDAT- 2014/10/08 06:00 MHDA- 2016/09/23 06:00 CRDT- 2014/10/08 06:00 PHST- 2014/02/18 00:00 [received] PHST- 2014/09/01 00:00 [accepted] PHST- 2014/10/08 06:00 [entrez] PHST- 2014/10/08 06:00 [pubmed] PHST- 2016/09/23 06:00 [medline] AID - 10.1111/evj.12369 [doi] PST - ppublish SO - Equine Vet J. 2016 Jan;48(1):109-13. doi: 10.1111/evj.12369. Epub 2015 Jan 28.