Occupational airborne contact urticaria, anaphylaxis and asthma in farmers and agronomists due to
            
              Bruchus pisorum

Alicia Armentia; Rafael Alvarez; Víctor Moreno‐González; Blanca Martín; Sara Fernández; Sara Martín; Angela Moro; Jose M Vega; Abel Barrios; Miriam Castillo; Fernando Pineda

doi:10.1111/cod.13644

Occupational airborne contact urticaria, anaphylaxis and asthma in farmers and agronomists due to Bruchus pisorum

Contact Dermatitis ◽

10.1111/cod.13644 ◽

2020 ◽

Vol 83 (6) ◽

pp. 466-474

Author(s):

Alicia Armentia ◽

Rafael Alvarez ◽

Víctor Moreno‐González ◽

Blanca Martín ◽

Sara Fernández ◽

...

Keyword(s):

Contact Urticaria ◽

Bruchus Pisorum

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Urticaria, Anaphylaxia and Asthma from Contact with Work Air in Farmers and Agronomists Due to Bruchus Pisorum

Journal of Immunology and Allergy ◽

10.37191/mapsci-2582-6549-2(1)-020 ◽

2021 ◽

Author(s):

Angel San Miguel Hernández

Keyword(s):

Patch Testing ◽

Oral Challenge ◽

Aluminum Phosphide ◽

Contact Urticaria ◽

Prick Test ◽

Allergenic Extracts ◽

In Vivo Tests ◽

History Of ◽

Bruchus Pisorum

Background: There are few reports of contact urticaria from the inhalation of allergens from legume pests. Objective: To study the origin of an outbreak of contact urticaria, asthma and anaphylaxis in farmers and agronomists who work handling dried peas. Method: Allergenic extracts composed of Bruchus lentis and B. pisorum, healthy peas, peas treated with aluminum phosphide and parasitized peas were used for in vivo tests (prick-test, oral challenge and bronchoprovocation) in affected patients and in five controls. with a history of atopy from other legumes. In addition, patch testing with live Bruchus pisorum, patch testing with more common insecticides, molecular component analysis, and Ig-E immunodetection were carried out. Results: Positive responses were found for the prick-test and the bronchoprovocation test to extracts of parasitized peas and B. pisorum, but the oral challenge was negative. A common 25 kDa band for infested peas and a 30 kDa band for infested pea and B. pisorum body was detected in all patients. The response for pea allergens was negative for all patients, unlike controls with a history of allergy to lentils and peanuts. Conclusion: It was determined that B. pisorum is a cause of symptoms of immediate hypersensitivity mediated by Ig E by inhalation of the allergen or by puncture of spicules or mushrooms of B. pisorum.

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