Dataset Information

Impact of thrombospondin-2 gene variations on the risk of thoracic aortic dissection in a Chinese Han population.

ABSTRACT: OBJECTIVE:Genetic factors play an important role in thoracic aortic dissection (TAD) etiology and thrombospondin-2 gene (THBS2) polymorphisms may be involved. This study tried to examine the single-nucleotide polymorphisms (SNP) rs8089 of THBS2 for their association with TAD susceptibility in Chinese Han population. METHODS:The rs8089 SNP of THBS2 was genotyped in 112 subjects who were diagnosed as TAD and in 184 age- and gender-matched matched controls. RESULTS:The THBS2 rs8089 SNP was associated with increased TAD susceptibility for allele level comparison (P < 0.0001), and for dominant model (P = 0.0073) or extreme genotype model (P = 0.0459) in Chinese Han Population. But for the recessive model, no statistical difference was found (P = 0.099), which may be resulted from the relatively small sample size and low genotype frequency. CONCLUSION:In conclusion, the present study suggested that the THBS2 rs8089 variant was associated with TAD, with the G allele representing a risk factor in a Chinese Han population.

SUBMITTER: Wang HQ

PROVIDER: S-EPMC4307556 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Impact of thrombospondin-2 gene variations on the risk of thoracic aortic dissection in a Chinese Han population.

Wang Hai-Qing HQ Jian Tao T Wang Fang F Wang Xu X

International journal of clinical and experimental medicine 20141215 12

<h4>Objective</h4>Genetic factors play an important role in thoracic aortic dissection (TAD) etiology and thrombospondin-2 gene (THBS2) polymorphisms may be involved. This study tried to examine the single-nucleotide polymorphisms (SNP) rs8089 of THBS2 for their association with TAD susceptibility in Chinese Han population.<h4>Methods</h4>The rs8089 SNP of THBS2 was genotyped in 112 subjects who were diagnosed as TAD and in 184 age- and gender-matched matched controls.<h4>Results</h4>The THBS2 r ...[more]

PMID: 25664109

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Project description:BackgroundInflammation may be involved in the pathogenesis of acute aortic dissection (AAD). Toll-like receptor 4 (TLR4) is known to play a critical role in regulating the immune and inflammatory processes. To date, the relationship between genetic variation of TLR4 and AAD is far from clear. The purpose of our study was to illustrate the relevance of TLR4 polymorphisms with the susceptibility to AAD.MethodsA total of 222 AAD patients and 222 controls were enrolled in this study. Frequency distributions of TLR4 polymorphisms (rs10759932 in the promoter and rs11536889 in the 3'-untranslated region) were determined by the KASP method. Clinical parameters were acquired from subjects' medical records, and serum TLR4 levels were collected from our previously published data.ResultsWe found that rs10759932 polymorphism was associated with a reduced risk of AAD in the overall population (CC vs. TT: OR = 0.393, 95%CI = 0.164-0.939, P = 0.036; recessive model: OR = 0.439, 95%CI = 0.196-0.984, P = 0.045) and subgroup analyses stratified by sex. The GC genotype and dominant model of rs11536889 conferred a significantly higher risk of AAD compared with GG genotype in female subjects (GC vs. GG: OR = 3.382, 95%CI = 1.051-10.885, P = 0.041; dominant model: OR = 3.043, 95%CI = 1.041-8.900, P = 0.042). In addition, a significant interaction between the rs11536889 recessive model and dyslipidemia was observed for an increased risk of AAD (P interaction = 0.038, OR = 15.229) after the adjustment for potential clinical covariates. We also used the false-positive report probability (FPRP) analysis to validate the significant results. Furthermore, rs11536889 polymorphism could affect the maximal aortic diameters of AAD (P = 0.037), while AAD patients carrying CC genotype of rs10759932 showed lower serum TLR4 levels than TT genotype carriers (P = 0.043).ConclusionsOur findings provide evidence for the association between TLR4 polymorphisms and AAD susceptibility in a Chinese Han population, which may have some implications for understanding the role of TLR4 in the pathophysiology of AAD.

Dataset Information

Impact of thrombospondin-2 gene variations on the risk of thoracic aortic dissection in a Chinese Han population.

Publications

Impact of thrombospondin-2 gene variations on the risk of thoracic aortic dissection in a Chinese Han population.

Similar Datasets

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