Fungal sensitization in nasal polyposis.
J Investig Allergol Clin Immunol
; 19(1): 6-12, 2009.
Article
em En
| MEDLINE
| ID: mdl-19274923
ABSTRACT
BACKGROUND:
There are indications that polyposis is somehow related to allergic phenomena. Fungal sensitization in substantial proportions of patients has been cited as a trigger of inflammatory mechanisms involving either an immunoglobulin (Ig) E-mediated reaction to fungal colonization or fungal invasion of tissues.OBJECTIVE:
To confirm whether fungi were involved in the development of polyposis by examining sensitivity to fungal allergens and potential local contamination by fungal species.METHODS:
We performed a study of 190 patients with polyposis and 190 controls in which we compared the results of skin prick tests to 12 fungi, total IgE, and specific IgE to 15 fungal extracts and nasal fungal cultures.RESULTS:
The specific fungi eliciting a reaction from the largest proportion of patients in the skin prick tests were Fusarium solani (13.7%), Penicillium frequentans (12.6%), Trichophyton mentagrophytes (11.1%), and Candida albicans (8.4%) (P < .001). The proportion of individuals that tested positive for fungal-specific IgE was 22.4% (38/170) for patients and 10.1% (19/189) for controls (P = .04). The respective proportions of positive responses to fungal cultures were 58.7% and 60%. Furthermore, no significant differences between patients and controls were found for the results of in vitro tests with cultured fungal allergens.CONCLUSIONS:
Although the patients with polyposis exhibited sensitization to fungal allergens, we found that nasal colonization by fungi was similar in patients and the general population. We were also unable to find a correlation between a positive response to the cultures and the presence of fungal allergen-specific IgE. It therefore seems that nasal colonization by fungi does not induce fungal sensitization.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Pólipos Nasais
/
Fungos
/
Antígenos de Fungos
Limite:
Adult
/
Humans
Idioma:
En
Revista:
J Investig Allergol Clin Immunol
Assunto da revista:
ALERGIA E IMUNOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Espanha