Occupational allergic rhinitis and contact urticaria caused by bishop's weed (Ammi majus)

Abstract

Bishop's weed (Ammi majus) has been known to induce toxic phytophotodermatitis. We now describe IgE-mediated rhinitis and contact urticaria caused by exposure to bishop's weed in a 31-year-old atopic female florist. A skin prick-prick test with bishop's weed flowers gave an 8-mm wheal, and the bishop's weed-specific IgE level in the patient's serum was 9.7 PRU/ml (RAST class 3). In an immunoblotting experiment with the patient's serum, nine IgE-binding protein bands with the molecular weights 19, 34, 39-41 (doublet), 52-61 (doublet), and >67 (triplet) kDa were detected in bishop's weed extract. The patient became symptomless after she had ceased to work as a florist.

Immunological occupational contact urticaria and contact dermatitis from proteins: a review

“…Table 2 gives a list of the proteins having caused CU and/or PCD of the immunological type. For references see the report of Janssens et al (4), to which more publications have been added (6, 7, 10–93).…”

Occupational all_ergic contact urticaria to yucca (Yucca aloifolia), weeping fig (Ficus benjamina), and spathe flower (Spathiphyllum wall_isii)

“…Hundreds of plants have caused type I all_ergy (1). Occupational contact urticaria (CU) from plants is also often reported (1), but it is less often attributed to decorative houseplants (1–19). We present a patient with occupational CU from weeping fig (2, 4, 5, 10), spathe flower (7, 10, 11), and yucca.…”

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“…The usage of oral khella as a therapy is not as safe as it might sound and limited by its potential cytotoxicity. [24][25][26][27][28] In humans, two studies have been conducted; the first investigated the utilization of oral khellin to reduce blood lipids and the second studiedthe effects of khellin in vitiligo. 24,25 Researchers observed that gastro-intestinal side-effects were observed frequently (29% of patients in the vitiligo study) and, elevated aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were also reported during therapy (7% to 14%).…”