title: Rice protein-induced enterocolitis syndrome with transient specific IgE to boiled rice but not to retort-processed rice.
abstract: Described herein is the case of an 8-month-old girl with atypical food protein-induced enterocolitis syndrome due to rice. She presented with vomiting and poor general activity 2 h after ingestion of boiled rice. Oral food challenge test using high-pressure retort-processed rice was negative, but re-exposure to boiled rice elicited gastrointestinal symptoms. On western blot analysis the patient's serum was found to contain IgE bound to crude protein extracts from rice seed or boiled rice, but not from retort-processed rice. The major protein bands were not detected in the electrophoresed gel of retort-processed rice extracts, suggesting decomposition by high-temperature and high-pressure processing. Oral food challenge for diagnosing rice allergy should be performed with boiled rice to avoid a false negative. Additionally, some patients with rice allergy might be able to ingest retort-processed rice as a substitute for boiled rice.
authors.affiliation: Department of Pediatrics, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.
authors.forename: Motoko
authors.initials: M
authors.lastname: Yasutomi
authors.forename: Takuya
authors.initials: T
authors.lastname: Kosaka
authors.forename: Akiko
authors.initials: A
authors.lastname: Kawakita
authors.forename: Hisako
authors.initials: H
authors.lastname: Hayashi
authors.forename: Shintaro
authors.initials: S
authors.lastname: Okazaki
authors.forename: Hiroki
authors.initials: H
authors.lastname: Murai
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Miyagawa
authors.forename: Mitsufumi
authors.initials: M
authors.lastname: Mayumi
authors.forename: Yusei
authors.initials: Y
authors.lastname: Ohshima
mesh_terms: D000485:Allergens / Q000009:adverse effects / Q000276:immunology*; D003937:Diagnosis, Differential; D004760:Enterocolitis / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D005260:Female; D005512:Food Hypersensitivity / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D006801:Humans; D007223:Infant; D012275:Oryza / Q000009:adverse effects* / Q000276:immunology; D010940:Plant Proteins / Q000009:adverse effects* / Q000276:immunology; D013577:Syndrome
chemical_list: D000485:Allergens; D010940:Plant Proteins
keywords: allergen; allergy; food protein-induced enterocolitis syndrome; rice; western blot