Abstract
Introduction. It is known that the course of chronic obstructive pulmonary disease (COPD) may vary depending on the rate of bronchial obstruction progression. It has been shown that TRPV1 channels play an important role in the formation of some pathological syndromes typical for COPD.Aim. To study the effect of single nucleotide polymorphisms (SNPs) of TRPV1 gene on the rate of bronchial obstruction progression in COPD patients.Materials and methods. We examined 103 patients with COPD, including 47 with rapid progression of bronchial obstruction (decrease in FEV1≥50 ml/year). SNPs rs460716, rs222749, rs222747, and rs8065080 were genotyped by LATE-PCR.Results. We established that rs460716 SNP had a significant effect on the development of progressive bronchial obstruction in COPD. The CC+TT genotypes were more common among patients with progressive disease (48.9% versus 23.2%), while the heterozygous genotype was protective (p=0.006). Differences remained significant after adjusting for sex, age, pack-year index and baseline FEV1 (OR 3.2; 95%CI [1.32; 7.57], p=0.009).Conclusion. The obtained results indicate a negative influence of the homozygous genotypes carriage for TRPV1 rs460716 SNP on the course of COPD.
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