Effect of seasonal allergic rhinitis on airway mucosal absorption of chromium-51 labelled EDTA.
AUTOR(ES)
Greiff, L
RESUMO
BACKGROUND--Hyperpermeability of the airway mucosa is thought to be characteristic of allergic rhinitis and asthma. Nine subjects with seasonal rhinitis caused by birch pollen were studied and the nasal mucosal absorption of chromium-51 labelled EDTA was examined both in an asymptomatic period before the season and late into the season when significant allergic rhinitis symptoms were present. METHODS--A nasal pool device was used to keep a concentration of the absorption tracer in contact with a larger part of the mucosa of the ipsilateral nasal cavity. Absorption was allowed for 15 minutes and measured as the radioactivity appearing in the 24 hour urine sample. RESULTS--The nasal absorption of 51Cr-EDTA in subjects with seasonal allergic rhinitis was less during active disease than before the season. CONCLUSIONS--An airway epithelial barrier that is subject to prolonged eosinophilic inflammation may not be disrupted but may rather increase its functional tightness.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=464598Documentos Relacionados
- Effects of topical capsaicin in seasonal allergic rhinitis.
- Radiobacteriolysis: a New Technique Using Chromium-51 for Assaying Anti- Vibrio cholerae Antibodies
- Absorption of 51Cr EDTA across the human nasal airway barriers in the presence of topical histamine.
- Treatment of seasonal allergic rhinitis: Desensitisation for hay fever works
- Treatment of seasonal allergic rhinitis: Useless versus helpful allergy therapy