TRPM8 GENE POLYMORPHISM AND SMOKING AS THE FACTORS OF SEVERE BRONCHIAL OBSTRUCTION IN PATIENTS WITH ASTHMA
The aim of the study was to determine the role of rs11562975 polymorphism of TRPM8 gene and tobacco smoking in the formation of severe bronchial obstruction in asthma patients. According to this aim, 416 patients with varying severity of asthma were examined. The study design included standard spirometry, genotyping of rs11562975 TRPM8 gene polymorphism and evaluation of the status and duration of smoking. The study revealed the detrimental effect of smoking on the respiratory function in patients with a pack/year index ≥10. rs11562975 polymorphism had a modulating effect on the smoking in patients with asthma. The influence of smoking ≥10 packs-years on the formation of severe bronchial obstruction was more pronounced among carriers of GC genotype, compared to patients with GG genotype. In case of pack-year history ≥20, the GC genotype significantly increased the risk of severe bronchial obstruction in the examined patients