RICE ALLERGY
Key Allergens
The allergens in rice are called Ory s 1 and Ory s 12. They are both considered to be airway allergens.
Ory s 1 is a beta expansin protein. These are found in the cell walls of plants and are a common cause of grass pollen allergies.
Ory s 12 is a profilin protein, most commonly causing allergic reactions in the airway, like hayfever.
Associated Syndromes
Allergic reactions to rice are commonly linked to Food Protein Induced Entercolitis Syndrome (FPIES).
Cross Reactivity
Only barley contains beta expansin proteins as food allergens. As an airway allergen, multiple species of grasses, rye and maize all contain beta expansin.
Profilin proteins are both food and airway allergens. Other profilin airway allergens are ragweed, wormwood, grasses, birch trees, sunflower, olive, plantain, poplar, oak and maize.
Resources
Websites
Allergen Encyclopedia - Rice
NY Allergy & Sinus Centers - Rice Allergy
Allergy information for: Rice (Oryza sativa )
ASCIA - FPIES
Articles and Journals
Non-specific lipid-transfer proteins: Allergen structure and function, cross-reactivity, sensitization, and epidemiology, 2021
An exploration of factors associated with food protein-induced enterocolitis syndrome: Birth, infant feeding and food triggers, 2021
Allergenic potential of rice-pollen proteins: expression, immuno-cross reactivity and IgE-binding, 2013
A case of rice allergy in a patient with baker’s asthma, 2012
Rice-Induced Anaphylaxis: IgE-Mediated Allergy against a 56-kDa Glycoprotein, 2012
Bronchial asthma induced by rice, 1998
Cloning, expression and immunological characterization of Ory s 1, the major allergen of rice pollen, 1995
Immediate hypersensitive reactions to buckwheat ingestion and cross allergenicity between buckwheat and rice antigens in subjects with high levels of IgE antibodies to buckwheat, 1995
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