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1.
Rev Alerg Mex ; 60(3): 87-92, 2013.
Artigo em Espanhol | MEDLINE | ID: mdl-24274602

RESUMO

BACKGROUND: House dust is considered an important source of aeroallergens, and the mites living there, are the main cause of allergy to it. In México, there have been few about house dust fauna, and mostly limited to México City. OBJECTIVE: To describe the house dust fauna from mattresses of allergic patients from different cities in México. METHODS: Sixty dust samples were collected from mattresses in 6 Mexican states: Oaxaca, Tamaulipas, Veracruz, Puebla, Chiapas and Campeche. Mites were isolated under a stereomicroscope using lactic acid -0.9% NaCI solution. Identification was performed on fixed slides prepared with Hoyer solution. Skin Tests were already performed with allergen extracts of different house dust mites species in the 60 mattress' owners, whom had previously been diagnosed with respiratory allergy. RESULTS: The Pyroglyphidae family was found in 100% of dust samples. Dermatophagoides pteronyssinus (Dp) and Dermatophagoides farinae (Df) were the species most frequently found (>90%). These findings were in agreement with the skin tests results, where 100% of patients were positive to Dp, whereas 70% was positive to Df. It was evidenced for the first time the presence of Blomia tropicalis in Tamaulipas, Veracruz and Campeche states, and Dermatophagoides siboney in Campeche. Both species are important allergenic sources in tropical/subtropical climates. CONCLUSIONS: These results confirm the importance of Pyroglyphid house dust mites, as indoor sensitizers in different climatic and geographical regions in México, as well as, the relevance of tropical species, particularly Blomia tropicalis and D. Siboney, in certain areas.


Assuntos
Leitos/parasitologia , Hipersensibilidade/imunologia , Pyroglyphidae , Adolescente , Adulto , Idoso , Animais , Criança , Pré-Escolar , Poeira , Humanos , México , Pessoa de Meia-Idade , Adulto Jovem
2.
Rev. cuba. pediatr ; 63(3): 191-7, sept.-dic. 1991. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-100995

RESUMO

Se hicieron pruebas cutáneas a 201 pacientes (niños) con evidencias clínicas de alergia al polvo, con la utilización de 2 extractos acuosos del ácaro Dermatophagoides siboney (1:10 000 y 1:1 000), el extracto comercial de D farinae (1:10 000), 5 de hongos (Aspergillus, Penicillium, Rhizopus, Cladosporium y Alternaria), uno de polvo doméstico (1:50 000) y un control. Mostraron reacciones positivas 137 pacientes al extracto 1:1 000 y 113 al 1:10 000 de D. Siboney; 165 lo hicieron al extracto de D. farinae y 164 al polvo doméstico. Las reacciones por hongos fueron escasas. Tanto la prueba de X a la 2, para la positividad, como la prueba de la t de Student, para la reacción, no mostraron diferencias significativas para p < 0,95, entre los resultados obtenidos en los extractos de D. siboney 1:10 000, D. farinae 1:10 000, por lo que pudieran ser utilizados indistintamente, al tener en cuenta la diferencia de concentración


Assuntos
Pré-Escolar , Criança , Adolescente , Humanos , Masculino , Feminino , Alérgenos , Ácaros , Testes Cutâneos
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