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Proposed new mechanism for food and exercise induced anaphylaxis based on case studies.
- Source :
-
Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology [Allergy Asthma Clin Immunol] 2013 Mar 20; Vol. 9 (1), pp. 11. Date of Electronic Publication: 2013 Mar 20. - Publication Year :
- 2013
-
Abstract
- We present two cases of food and exercise-induced anaphylaxis (FEIA) in patients with a diagnosis of oral allergy syndrome (OAS) to the implicated foods. Patient A had FEIA attributed to fresh coriander and tomato and Patient B to fresh celery. These food allergens have been implicated in OAS and have structural antigenic similarity to that of birch and/or grass. Both patients' allergies were confirmed by fresh skin prick tests. In both cases, strenuous exercise was antecedent to the systemic anaphylaxis reaction and subsequent ingestion without exercise produced only local symptoms of perioral pruritus. We review the current proposed mechanisms for food and exercise induced anaphylaxis to oral allergens and propose a novel and more biologically plausible mechanism. We hypothesize that the inhibitory effects of exercise on gastric acid secretion decreases the digestion of oral allergens and preserves structural integrity, thereby allowing continued systemic absorption of the allergen whether it be profilins, lipid transfer proteins, or other antigenic determinants.
Details
- Language :
- English
- ISSN :
- 1710-1484
- Volume :
- 9
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology
- Publication Type :
- Academic Journal
- Accession number :
- 23509907
- Full Text :
- https://doi.org/10.1186/1710-1492-9-11