Reactivity to recombinant house-dust-mite allergens in asthma and rhinitis in a tropical environment

Autor: M.C. Di Prisco, R. I. Lopez, Neil R. Lynch, L. A. Hazell, Wendy-Anne Smith, F. A. Puccio, W.R. Thomas
Rok vydání: 1998
Předmět:
Zdroj: Allergy. 53(8)
ISSN: 0105-4538
Popis: Background House-dust mites contain components that are allergenic in mite-sensitive patients, and a number of these have been produced in recombinant form. Methods In the present study, we evaluated by skin prick testing the positivity to native Der p 2 and recombinant Der p 2, Der p 5, and Der p 7 allergens of Dermatophagoides pteronyssinus in patients with rhinitis, asthma, or a combination of these diseases, who were positive to whole-mite extract. Results In all patients, the positivity to both native and recombinant Der 2 was high. In patients with either rhinitis or asthma, the reactivity to Der p 5 and 7 was significantly lower than to Der p 2. However, in patients with combined disease, the positivity to the minor allergens was almost as high as that to Der p 2. Conclusions These results raise the question of whether patients with combined allergic rhinitis and asthma, when compared to those with either of these diseases alone, are predisposed to react to a wider range of mite allergens, or, inversely, whether patients who respond to the minor allergens are more susceptible to suffering the combined disease.
Databáze: OpenAIRE