Occupational asthma and rhinitis caused by curry powder / 천식및알레르기

ABSTRACT

Curry powder is widely used in various dishes. It is a mixture of 20-50 kinds of natural spices made from the leaves and seeds of plants. Although there have been some reports of allergy caused by inhalation of spices in western countries, while there are no reports of occupational allergy caused by spices in our country. We report a patient with rhinitis and asthma induced by exposure to spice dusts in a curry industry. A 32-year-old man developed rhinorrhea, sneezing and coughing three years prior to visiting our hospital. Since 10 years ago, he has been involved in grinding and mixing spices in a curry industry. Total peripheral eosinophil count was 400/mm3 and serum total IgE level was 163 IU/ml. Allergy skin-prick test showed positive responses to mugwort (3+), D. farinae (3+) and celery (3+), while serum specific IgE detected by RIA (DPC, LA, CA) showed all negative results. Skin-prick test to four kinds of spice extractscelery seed, fennel, cumin and coriander-showed strong positive responses. Bronchoprovocation test with celery seed extract (110 v/v) showed an early asthmatic response. Specific IgE and IgG4 antibodies to celery seed and the other three spices were detectable by ELISA. IgE-ELISA inhibition test using each spice antigen showed significant inhibitions. In conclusion, IgE-mediated mechanism may be involved in the pathogenesis of curry powder-induced bronchoconstriction in an exposed worker. Further studies will be needed to investigate the role of specific IgG4 in pathogenesis of bronchoconstriction in curry powder-induced asthma.