Association between the functional polymorphism C-159T in the CD14 promoter gene and nasal polyposis: potential role in asthma.
J Investig Allergol Clin Immunol
; 22(6): 406-11, 2012.
Article
en En
| MEDLINE
| ID: mdl-23101184
BACKGROUND: Nasal polyposis (NP) is a chronic inflammatory disease that is frequently associated with allergy and asthma. Corticosteroid therapy and surgical removal of polyps are the 2 most common treatment strategies for NP. Various allergic and inflammatory mediators are thought to play a major role in the pathophysiology of this disorder. The CD14 gene is located on chromosome 5q31-32, which is considered a critical region for several allergic and atopic diseases, including asthma. Consequently, variations in CD14 could have functional effects on the etiology and severity of allergy and asthma. The aim of this study was to investigate the association between the polymorphism C-159T in the CD14 gene of patients with NP and controls. METHODS: The study population comprised 106 patients with NP diagnosed based on computed tomography scan of the paranasal sinus, endoscopy, and histological examination. Findings were compared with those from 87 controls. The frequency of C-159T was determined using polymerase chain reaction-restriction fragment length polymorphism analysis. DNA was extracted using the salting out technique. RESULTS: A significant association was observed between C-159T and NP (P = .04). Patients with the CC genotype at position -159 of the CD14 promoter region had an increased risk of asthma (OR, 3.83, 95% CI, 0.99-13.91; P < .02). However, we did not find an association between the distribution of C-159T and serum immunoglobulin E level. CONCLUSIONS: A genetic variation in the CD14 promoter might play a role in the pathogenesis of NP and in the incidence of asthma.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Asma
/
Pólipos Nasales
/
Receptores de Lipopolisacáridos
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Investig Allergol Clin Immunol
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Irán
Pais de publicación:
España