Bakers' asthma caused by alpha amylase. 1994

R Valdivieso, and J Subiza, and J L Subiza, and M Hinojosa, and E de Carlos, and E Subiza
Centro de Alergia e Inmunología Clínica, General Pardiñas, Madrid, Spain.

Two bakers with bronchial asthma and two with rhinoconjunctivitis are described. Prick and RAST tests were positive with wheat flour in all of them, but the challenge test (nasal or bronchial) with wheat flour extract was positive only in one asthmatic baker. The prick test, RAST, and nasal or bronchial challenge done with alpha amylase extract (a glycolytic enzyme obtained from Aspergillus oryzae and used as a flour additive) were positive in all four patients. Our results support previous data indicating that alpha amylase used in bakeries is an important antigen that could cause respiratory allergy in bakers. It can function as sole causative allergen or in addition with other allergens used in the baking industry.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009784 Occupational Diseases Diseases caused by factors involved in one's employment. Diseases, Occupational,Occupational Illnesses,Disease, Occupational,Illnesse, Occupational,Illnesses, Occupational,Occupational Disease,Occupational Illnesse
D003231 Conjunctivitis INFLAMMATION of the CONJUNCTIVA. Pink Eye,Conjunctivitides,Pink Eyes
D005433 Flour A powdery meal obtained from ground up starchy foodstuff, such as seeds of WHEAT; RICE and other EDIBLE GRAIN; LEGUMES; and NUTS; or ground up PLANT TUBERS. Almond Flour,Almond Meal,Corn Flour,Corn Meal,Grain Flour,Grain Meal,Nut Flour,Potato Flour,Rice Flour,Rice Meal,Soybean Flour,Soybean Meal,Wheat Flour,Wheat Meal,Semolina Flour,Almond Flours,Almond Meals,Corn Flours,Corn Meals,Flour, Almond,Flour, Corn,Flour, Grain,Flour, Nut,Flour, Potato,Flour, Rice,Flour, Semolina,Flour, Soybean,Flour, Wheat,Flours,Flours, Almond,Flours, Corn,Flours, Grain,Flours, Nut,Flours, Potato,Flours, Rice,Flours, Semolina,Flours, Soybean,Flours, Wheat,Grain Flours,Grain Meals,Meal, Almond,Meal, Corn,Meal, Grain,Meal, Rice,Meal, Soybean,Meal, Wheat,Meals, Almond,Meals, Corn,Meals, Grain,Meals, Rice,Meals, Soybean,Meals, Wheat,Nut Flours,Potato Flours,Rice Flours,Rice Meals,Semolina Flours,Soybean Flours,Soybean Meals,Wheat Flours,Wheat Meals
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000516 alpha-Amylases Enzymes that catalyze the endohydrolysis of 1,4-alpha-glycosidic linkages in STARCH; GLYCOGEN; and related POLYSACCHARIDES and OLIGOSACCHARIDES containing 3 or more 1,4-alpha-linked D-glucose units. Taka-Amylase A,alpha-Amylase,Alpha-Amylase Bayer,Maxilase,Mégamylase,alpha-1,4-D-Glucanglucanohydrolase,Alpha Amylase Bayer,AlphaAmylase Bayer,Taka Amylase A,TakaAmylase A,alpha 1,4 D Glucanglucanohydrolase,alpha Amylase,alpha Amylases
D001249 Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). Asthma, Bronchial,Bronchial Asthma,Asthmas
D012220 Rhinitis Inflammation of the NASAL MUCOSA, the mucous membrane lining the NASAL CAVITIES. Nasal Catarrh,Catarrh, Nasal,Catarrhs, Nasal,Nasal Catarrhs,Rhinitides

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