Liu O, Li J, Xin Y, Qin Y, Li H, Gong M, Liu Y, Wang X, Li J, Zhang H. Association of MMP-2 gene haplotypes with thoracic aortic dissection in chinese han population.
BMC Cardiovasc Disord 2016;
16:11. [PMID:
26762140 PMCID:
PMC4712614 DOI:
10.1186/s12872-016-0188-4]
[Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 01/08/2016] [Indexed: 12/24/2022] Open
Abstract
Background
Thoracic aortic dissection (TAD) is the most common life-threatening disorder, and MMP-2 is involved in TAD pathogenesis. Our purpose is to systematically evaluate the association of the MMP-2 gene with TAD risk in Chinese Han population.
Methods
In our case–control study, we recruited 755 unrelated participants: 315 case participants with TAD and 440 controls. Twenty-two tag SNPs were selected from MMP-2 gene and were genotyped. Genotype data were analyzed by logistic regression.
Results
Although we did not find any significant association for MMP-2 SNPs using single-marker analysis, we identified many windows with haplotype frequencies significantly different between case participants and control participants using a variable-sized sliding-window strategy. In particular, the most significant association was shown by a 2-SNP window consisting of rs2241145 and rs9928731 (omnibus test: asymptotic Pasym = 7.48 × 10 −5 and empirical Pemp = 0.001867). There were two protective haplotypes: CT (Pasym = 0.00303; odds ratio [OR], 0.403) and GC (Pasym = 0.000976; OR, 0.448).
Conclusions
MMP-2 haplotypes are associated with genetic susceptibility to thoracic aortic dissection in Chinese Han population.
Electronic supplementary material
The online version of this article (doi:10.1186/s12872-016-0188-4) contains supplementary material, which is available to authorized users.
Collapse