Exhaled nitric oxide and sputum eosinophil markers of inflammation in asthmatic children

Autor: Giorgio Piacentini, S Sperandio, Alessandro Bodini, Silvia Costella, A. L. Boner, L. Vicentini, Paola Mazzi
Rok vydání: 1999
Předmět:
Zdroj: European Respiratory Journal. 13:1386-1390
ISSN: 1399-3003
0903-1936
DOI: 10.1183/09031936.99.13613919
Popis: Exhaled nitric oxide and eosinophil sputum markers are considered noninvasive ways in which to evaluate airway inflammation in asthma. The aim of this study was to evaluate the relationships between these methods of evaluation in asthmatic children. In a cross-sectional study of 25 mild-moderate asthmatic children (aged 6-13 yrs, 10 patients on inhaled steroids) exhaled NO was measured along with induced sputum by inhalation of hypertonic saline solution. The sputum was processed for eosinophil count and eosinophil cationic protein (ECP) determination. Serum ECP and lung function (forced expiratory volume in one second (FEV1)) were also measured. A significant correlation was observed between exhaled NO and sputum eosinophils (r = 0.438, p = 0.032) as well as between sputum eosinophils and sputum ECP (r = 0.532, p
Databáze: OpenAIRE