Open AccessUnusual allergen in a butcher with respiratory symptoms
Author(s) -
I. Sander,
C. Keller,
Christina Czibor,
Ursula Meurer,
R. Merget,
Monika Raulf
Publication year - 2020
Publication title -
allergologie select
Language(s) - English
Resource type - Journals
ISSN - 2512-8957
DOI - 10.5414/alx02126e
Subject(s) - butcher , medicine , respiratory system , allergen , dermatology , immunology , allergy , history , archaeology
A 37-year-old butcher developed respiratory symptoms during sausage and chicken production in a large company. In addition to various spices, the enzyme transglutaminase was a possible cause. The lung function test showed mild partial reversible airway obstruction and severe bronchial hyperresponsiveness. The IgE test showed sensitizations to various spice mixtures, coriander (0.74 kU/L), and to the ImmunoCAP-bound transglutaminase preparation from the workplace (7.12 kU/L). The skin prick tests with this transglutaminase were also positive. In the immunoblot of this preparation, a 40-kD protein reacted with the patient's IgE and was identified as transglutaminase from Streptomyces mobaraensis by inhibition experiments. This is the first case of a butcher with an allergy to transglutaminase. After moving to a small enterprise without enzyme use, his symptoms improved. Sensitization and the course of the symptoms indicate a dominant role of transglutaminase in the patient's allergic asthma.