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Abstract steroids4 and the levels are not modulated by bronchodilator therapy. 5 However, in asthmatic

Background–Eosinophils in induced spu-tum and exhaled nitric oxide (NO) are subjects receiving inhaled corticosteroids the levels are reduced. 6 This suggests that exhaled currently used as non-invasive markers in the assessment of airway inflammation in NO may be used as a surrogate marker of airway inflammation. asthma. As both sputum eosinophils (%) and exhaled NO are raised in asthmatic The number of sputum eosinophils and the amount of eosinophil cationic protein (ECP) subjects not receiving inhaled steroids and decreased following corticosteroid in induced sputum is associated with asthma severity. There are correlations between spu-therapy, a relationship between them is plausible. tum eosinophils and sputum ECP levels with FEV1. 7–9 Also, sputum obtained from asth-Methods–Exhaled …