A Case of Occupational Rhinitis Caused by Rice Powder in the Grain Industry

Rice is the major staple food in a large part of the world, especially in Asia. Hypersensitivity reactions to rice are rare. Moreover, cases of occupational allergies induced by inhalation of rice powder are uncommon. We report a 31-year-old male with work-related rhinitis and conjunctivitis symptom...

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Detalles Bibliográficos
Autores principales: Kim, Joo-Hee, Kim, Jeong Eun, Choi, Gil-Soon, Hwang, Eui-Kyung, An, Soyeon, Ye, Young-Min, Park, Hae-Sim
Formato: Texto
Lenguaje:English
Publicado: The Korean Academy of Asthma, Allergy and Clinical Immunology; The Korean Academy of Pediatric Allergy and Respiratory Disease 2010
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846738/
https://www.ncbi.nlm.nih.gov/pubmed/20358029
http://dx.doi.org/10.4168/aair.2010.2.2.141
Descripción
Sumario:Rice is the major staple food in a large part of the world, especially in Asia. Hypersensitivity reactions to rice are rare. Moreover, cases of occupational allergies induced by inhalation of rice powder are uncommon. We report a 31-year-old male with work-related rhinitis and conjunctivitis symptoms caused by occupational exposure to rice powder in the grain industry. He showed positive responses to rice extracts on a skin prick test, and a high level of serum specific IgE to rice was detected by ELISA. Occupational rhinitis was confirmed by a nasal provocation test with rice extracts. An IgE ELISA inhibition test showed cross-creativity between rice and various grass pollen extracts. These findings suggest that the inhalation of rice powder can induce IgE-mediated occupational rhino-conjunctivitis, which may be derived from cross-reactivity to major grass pollens.

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