Evaluation of IL-8 and MEF25-75 in patients with severe COPD who were treated with combined therapy of ICSs / LABAs plus tiotropium bromide
Journal
Europian Respiratory Journal
Date Issued
2013
Author(s)
Zlatica Gosheva
Angelko Gjorchev
Suzana Arbutina
Dejan Todevski
Abstract
The aim of this study was to determine the effect of combined therapy of ICSs/LABAs plus tiotropiumbromide in patients with COPD, by analyzing of IL-8 and MEF25-75 at the beginning and after 6 months oftherapy. The study included 33 patients with severe COPD. In each of them were measured serum IL-8levels by the ELISA method and MEF25-75 which are indicated the small airways obstruction. They weretreated with combined therapy of ICSs/LABAs (500mcg) plus Tiotropium Bromide (18mcg) daily in durationof 6 months. The results were statistically elaborated according to the T-test for Dependent Samples. Theobtained results of IL-8 showed that the level of IL-8 before the start of therapy were much higher and thattreatment significantly reduces their value (t=3.13, p=0.003, p<0.05). The results of MEF 25-75 at the startof therapy were lower and after 6 months of treatment showed a slight improvement of lung function butstatistically insignificant (t= -0.83, p=0.41,p<0.05). The concentration of IL-8 is closely related with airwayobstruction in patients with COPD and may serve as a marker for evaluating the severity of airwayinflammation. ICSs/LABAs and tiotropium bromide have inhibitory effect on neutrophilic inflammationthrough the suppression of IL-8 production from epithelial cells and thus may contribute to lower cellularinflammation in COPD. Because it is a progressive disease and airflow limitation is not fully reversible, wecannot expect spectacular results like we show with the value of MEF25-75, but should strive to preventprogression and reduce airway remodeling with education, pharmacologic and non pharmacologic treatment