PMID- 15727584 OWN - NLM STAT- MEDLINE DCOM- 20050620 LR - 20121115 IS - 0105-4538 (Print) IS - 0105-4538 (Linking) VI - 60 IP - 4 DP - 2005 Apr TI - IgE antibodies to omega-5 gliadin in children with wheat-induced anaphylaxis. PG - 506-9 AB - BACKGROUND: Wheat can cause severe immunoglobulin E (IgE)-mediated systemic reactions including anaphylaxis but knowledge on relevant wheat allergens at the molecular level is scanty. METHODS: Seven children (aged from 6 months to 13 years) experiencing from 2 to 10 anaphylactic reactions in a year after eating food-containing wheat were examined. Purified omega-5 gliadin was used as an allergen in IgE enzyme-linked immunosorbent assay (ELISA) and in skin prick testing (SPT). Wheat CAP radioallergosorbent test (RAST) and SPT were also examined. RESULTS: All seven anaphylactic children, but none of 15 control subjects had IgE antibodies to omega-5 gliadin in ELISA. Five of the six tested anaphylactic children showed positive SPT to omega-5 and crude gliadin, and all seven had positive wheat CAP RAST and SPT. One child was challenged with wheat, which caused anaphylaxis. After adherence to a wheat-free diet four children remained symptomless and three experienced one to two anaphylactic reactions. CONCLUSION: The present results show that wheat omega-5 gliadin is a major sensitizing allergen in children with wheat-induced anaphylaxis. They also suggest that omega-5 gliadin IgE ELISA could be used as a diagnostic test for this severe allergy. FAU - Daengsuwan, T AU - Daengsuwan T AD - Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Palosuo, K AU - Palosuo K FAU - Phankingthongkum, S AU - Phankingthongkum S FAU - Visitsunthorn, N AU - Visitsunthorn N FAU - Jirapongsananuruk, O AU - Jirapongsananuruk O FAU - Alenius, H AU - Alenius H FAU - Vichyanond, P AU - Vichyanond P FAU - Reunala, T AU - Reunala T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Denmark TA - Allergy JT - Allergy JID - 7804028 RN - 0 (Allergens) RN - 0 (Antigens, Plant) RN - 0 (omega-5 gliadin, wheat) RN - 37341-29-0 (Immunoglobulin E) RN - 9007-90-3 (Gliadin) SB - IM MH - Adolescent MH - Allergens/*immunology MH - Anaphylaxis/*blood/etiology MH - Antigens, Plant MH - Child MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Gliadin/*immunology MH - Humans MH - Immunoglobulin E/*blood MH - Infant MH - Male MH - Radioallergosorbent Test MH - Skin Tests MH - Wheat Hypersensitivity/*complications/*immunology EDAT- 2005/02/25 09:00 MHDA- 2005/06/21 09:00 CRDT- 2005/02/25 09:00 PHST- 2005/02/25 09:00 [pubmed] PHST- 2005/06/21 09:00 [medline] PHST- 2005/02/25 09:00 [entrez] AID - ALL656 [pii] AID - 10.1111/j.1398-9995.2004.00656.x [doi] PST - ppublish SO - Allergy. 2005 Apr;60(4):506-9. doi: 10.1111/j.1398-9995.2004.00656.x.