title: Asthma and contact urticaria caused by rice in a housewife.
abstract: We report the case of an atopic housewife who presented with rhinoconjunctivitis-asthma and contact urticaria from handling rice and other cereals. She tolerated cooke cereals. Both skin prick tests with a rice extract (20% w/v) and a rub test with raw rice gave positive results. Bronchial challenge test with methacholine revealed a PC20 of 0.45 mg/ml. The challenge test with raw rice resulted in immediate and late clinical and spirometric responses; pretreatment with DSCG inhibited both responses. The histamine release test (HRT) with rice was positive, and we detected rice-specific IgE antibodies by REIA in the patient's serum. Skin prick tests, HRT, and RAST with a battery of cereals gave positive results. Finally, the rice REIA was inhibited by rice (75%), rye (63%), corn (64%), and wheat (51%) extracts.
authors.affiliation: Servicio de Alergología, Hospital Ramón y Cajal, Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Lezaun
authors.forename: J M
authors.initials: JM
authors.lastname: Igea
authors.forename: S
authors.initials: S
authors.lastname: Quirce
authors.forename: M
authors.initials: M
authors.lastname: Cuevas
authors.forename: F
authors.initials: F
authors.lastname: Parra
authors.forename: M D
authors.initials: MD
authors.lastname: Alonso
authors.forename: J A
authors.initials: JA
authors.lastname: Martín
authors.forename: M S
authors.initials: MS
authors.lastname: Cano
mesh_terms: D000328:Adult; D001249:Asthma / Q000175:diagnosis / Q000209:etiology*; D001985:Bronchial Provocation Tests; D003233:Conjunctivitis, Allergic / Q000209:etiology; D005260:Female; D006636:Histamine Release; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000175:diagnosis / Q000209:etiology*; D007073:Immunoglobulin E / Q000032:analysis; D012275:Oryza / Q000009:adverse effects*; D012221:Rhinitis, Allergic, Perennial / Q000209:etiology; D012882:Skin Tests; D014581:Urticaria / Q000175:diagnosis / Q000209:etiology*
chemical_list: D007073:Immunoglobulin E