Occupational Asthma Reference
Occupational allergy caused by spathe flower (Spathiphyllum wallisii),
Keywords: Finland, plant, rhinitis, pharyngitis, urticaria, office, pollen, leaf, fruit, spice, rubber, latex, IgE, Spathe flower, Spathiphylum wallisii, nc, ch, pt
Occupational allergy caused by plants is seldom reported although it is probably relatively common. We report on a 22-year- old male atopic caretaker of plants who developed IgE-mediated allergic rhinitis, laryngitis, pharyngitis, and contact and generalized urticaria caused by exposure to spathe flower (Spathiphyllum wallisii) while he was working for a firm that supplied plants to offices. He also had an asthmatic attack at work, but in bronchial provocation tests conducted 8 months after he had stopped doing the work in question, he developed rhinoconjunctivitis, pharyngitis, and laryngitis, but exhibited neither bronchial reaction nor fall in PEF values. Prick tests with spathe flower gave 3+ reactions for exudates from the flower, pollen, stem, and leaves. He also had several positive reactions to fruits, vegetables, and spices, but not to natural rubber latex. The radioallergosorbent test with spathe flower was positive (3.4 PRU/ml, close to class 3). In protein staining with SDS-PAGE, one heavy band was detected at about 14 kDa, and other faint bands were visible on both sides. Six faint bands were detected at the mol. mass range of 30-67 kDa. In IgE immunoblotting, one heavy band was detected at about 14 kDa. The patient became symptomless after he had ceased working with plants
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