effect of inhalant combined with dingchuan zhike decoction therapy on the airway remodeling, inflammation and parc/ccl- 18 pathways in patients with cough variant asthma

Abstract

Objective: To study the effect of inhalant combined with Dingchuan Zhike decoction therapy on the airway remodeling, inflammation and PARC/CCL-18 pathways in patients with cough variant asthma. Methods: A total of 60 patients with cough variant asthma who were treated in our hospital between January 2014 and May 2016 were collected and divided into the control group (n=30) who received conventional inhalant treatment and the observation group (n=30) who received inhalant combined with Dingchuan Zhike decoction treatment according to single-blind randomized controlled method, and the treatment lasted for 6 months. Before treatment and after 6 months of treatment, high-resolution CT was used to determine the airway remodeling index levels, RIA method was used to detect the peripheral blood airway remodeling index contents, and enzyme-linked immunosorbent assay (ELISA) was used to detect the contents of inflammatory mediators in induced sputum and the PARC/CCL-18 in serum. Results: Before treatment, the differences in the airway remodeling degree as well as the contents of inflammatory mediators and PARC/CCL-18 were not statistically significant between the two groups. After 6 months of treatment, CT airway remodeling indexes LA and TA levels of observation group were higher than those of control group while WA level was lower than that of control group, and peripheral blood airway remodeling indexes CTGF, YKL- 39, MMP-9 and TIMP-1 contents were lower tha=n those of control group; inflammatory mediators IL-5, IL-6 and IL-8 contents in induced sputum of observation group were lower than those of control group, and serum PARC/CCL-18 content was lower than that of control group. Conclusion: Inhalant combined with Dingchuan Zhike decoction can inhibit the airway remodeling and reduce the airway inflammation in patients with cough variant asthma.