title: Interleukin-4, interleukin-8 and E-selectin levels in intranasal polyposis patients with and without allergy: a comparative study.
abstract: Intranasal polyposis is a chronic inflammatory upper airway disease with unknown aetiology. Interleukin (IL)-4 and IL-8 play very significant roles in allergic events and infectious inflammation, respectively. In contrast, E-selectin is important in the initiation and organization of inflammation. In this study, levels of IL-4, IL-8 and E-selectin were measured in nasal mucosa specimens of intranasal polyposis patients with and without allergic rhinitis, and healthy controls. Healthy controls had significantly higher IL-4 levels than allergic patients and non-allergic patients; IL-4 levels were similar in allergic and non-allergic patients. Allergic and non-allergic patients had significantly higher IL-8 levels than healthy controls; IL-8 levels were comparable in allergic and non-allergic patients. E-selectin levels were similar in all groups. The infection-based theory, represented by IL-8, seems to be more likely than the allergy-based theory, represented by IL-4, for the pathogenesis of nasal polyposis.
authors.affiliation: Department of Otorhinolaryngology, Gazi University Faculty of Medicine, Gazi, Ankara, Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Ural
authors.forename: M S
authors.initials: MS
authors.lastname: Tezer
authors.forename: A
authors.initials: A
authors.lastname: Yücel
authors.forename: H
authors.initials: H
authors.lastname: Atilla
authors.forename: F
authors.initials: F
authors.lastname: Ileri
mesh_terms: D016022:Case-Control Studies; D019040:E-Selectin / Q000032:analysis; D006801:Humans; D007239:Infections / Q000150:complications; D015847:Interleukin-4 / Q000032:analysis; D016209:Interleukin-8 / Q000032:analysis; D009297:Nasal Mucosa / Q000473:pathology; D009298:Nasal Polyps / Q000209:etiology*; D012220:Rhinitis / Q000150:complications*
chemical_list: D019040:E-Selectin; D016209:Interleukin-8; D015847:Interleukin-4