Mite species adapted to warm, humid climates are commonly found in house dust in the tropics.
In Cuba, Dermatophagoides pteronyssinus, D. siboney, and Blomia tropicalis are the most common and abundant mite species in house dust.
To investigate the pattern of sensitization of Cuban asthmatic patients to common mite species, we skin-prick-tested (SPT) 148 patients with a clinical history of asthma and possible mite allergy, and determined specific IgE antibodies against mite allergens (D. pteronyssinus, D. farinae, D. siboney, B. tropicalis, Acarus siro, Lepidoglyphus destructor, Tyrophagus putrescentiae, and Glycyphagus domesticus).
The prevalence of positive SPT was high to D. siboney (88%), D. pteronyssinus (87%), A. siro (85%), B. tropicalis (85%), and D. farinae (83%). The largest skin reactions were obtained with D. siboney and B. tropicalis extracts.
The skin test response to the D. siboney extract correlated to those of D. farinae, D. pteronyssinus, B. tropicalis, and A. siro.
The highest IgE levels were found to Dermatophagoides species and B. tropicalis.
IgE to D. siboney and B. tropicalis were found in 97% and 96% of the patients, respectively.
The prevalence of specific IgE to the other mites studied varied from 46 to 65%. D. siboney and B. tropicalis are important sensitizers among asthmatic patients in Cuba.
Mots-clés Pascal : Asthme, Allergie, Poussière maison, Dermatophagoides farinae, Pyroglyphidae, Acaridida, Acariformes, Acari, Arachnida, Arthropoda, Invertebrata, Dermatophagoides pteronyssinus, Prévalence, Epidémiologie, Cuba, Antilles, Amérique Centrale, Amérique, Homme, Appareil respiratoire pathologie, Bronchopneumopathie obstructive, Immunopathologie, Dermatophagoides siboney, Blomia tropicalis
Mots-clés Pascal anglais : Asthma, Allergy, House dust, Dermatophagoides farinae, Pyroglyphidae, Acaridida, Acariformes, Acari, Arachnida, Arthropoda, Invertebrata, Dermatophagoides pteronyssinus, Prevalence, Epidemiology, Cuba, West Indies, Central America, America, Human, Respiratory disease, Obstructive pulmonary disease, Immunopathology
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0355335
Code Inist : 002B06C02. Création : 10/04/1997.