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TRPM8 genetic variations associated with COPD risk in the Chinese Han population.

Abstract：

:TRPM8 plays a key role in COPD. The development of pulmonary hypertension (PH) in COPD adversely affects survival and exercise capacity. Thus, the aim of this study was to evaluate the possible association between single nucleotide polymorphisms (SNPs) in TRPM8 and COPD or PH in COPD among the Chinese Han population. A total of 513 COPD patients and 506 controls were enrolled in the study. Six tag SNPs (tSNPs) were genotyped. The relationship between COPD or PH in COPD and the six tSNPs was evaluated using the χ2 test and genetic model analysis. In the rs9789398 polymorphism, the T/C genotype was associated with an increased risk for COPD (P=0.005). Under the assumption of models of inheritance, there was an association between the rs9789398 polymorphism and COPD. In the rs9789675 polymorphism, the G/A genotype was associated with an increased risk for COPD (P=0.021). Furthermore, by the χ2 test, we found that the minor allele "A" of rs9789675 (odds ratio [OR] =0.63, 95% confidence interval [CI], 0.42-0.97, P=0.034) and the minor allele "C" of rs9789398 (OR =1.59, 95% CI, 1.03-2.44, P=0.034) were associated with a decreased risk of PH in COPD in allele models. In genetic models, the genotypes "GA" and "AA" of rs9789675 were associated with a decreased risk of PH in COPD. The genotypes "TC" and "CC" of rs9789398 were associated with a decreased risk of PH in COPD. Moreover, "CG" of rs1004478 was significantly associated with a decreased risk of PH in COPD. There was a significant association between the five SNPs (rs2362290, rs9789675, rs9789398, rs1003540, and rs104478) in the TRPM8 gene and the risk of PH in COPD. Our findings indicated that rs9789398 in the TRPM8 gene was significantly associated with the risk of COPD in the Chinese Han population. Moreover, rs9789675, rs9789398, and rs1004478 were significantly associated with the risk of PH in COPD. This study provides a novel insight into COPD and PH in the development of COPD.

journal_name

Int J Chron Obstruct Pulmon Dis

journal_title

International journal of chronic obstructive pulmonary disease

authors

Xiong M,Wang J,Guo M,Zhou Q,Lu W

doi

10.2147/COPD.S109026

subject

Has Abstract

pub_date

2016-10-14 00:00:00

pages

2563-2571

eissn

1176-9106

issn

1178-2005

pii

copd-11-2563

journal_volume

pub_type

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TRPM8 genetic variations associated with COPD risk in the Chinese Han population.