Polymorphisms in Inflammatory Genes and the Risk of Ischemic Stroke and Transient Ischemic Attack: Results of a Multilocus Genotyping Assay

被引:23
作者
Greisenegger, Stefan [1 ]
Zehetmayer, Sonja [2 ]
Bauer, Peter [2 ]
Endler, Georg [3 ]
Ferrari, Julia [4 ]
Lang, Wilfried [4 ]
Janisiw, Michael [3 ]
Steiner, Lori [5 ]
Cheng, Suzanne [5 ]
Lalouschek, Wolfgang [1 ]
Mannhalter, Christine
机构
[1] Med Univ Vienna, Dept Neurol, Vienna, Austria
[2] Med Univ Vienna, Inst Med Stat, Vienna, Austria
[3] Med Univ Vienna, Clin Inst Med & Chem Lab Diagnost, Vienna, Austria
[4] Hosp Barmherzige Brueder, Dept Neurol, Vienna, Austria
[5] Roche Mol Syst Inc, Dept Human Genet, Pleasanton, CA USA
关键词
COMPLEMENT; ATHEROSCLEROSIS; INTERLEUKIN-6; REGISTRY; DISEASE;
D O I
10.1373/clinchem.2008.112151
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
BACKGROUND: Single-nucleotide polymorphisms (SNPs) in inflammation-related genes have been linked to an increased risk of ischemic stroke. Most of these SNP results have not been replicated, however, and meta-analyses of the effects of inflammation-related genes are rare. We investigated 49 SNPs in 34 genes previously reported to be related to inflammation in our study. We tested 459 patients with acute ischemic stroke or transient ischemic attack and 459 controls individually matched by sex and age. METHODS: We studied genetic variation by PCR analysis and subsequent hybridization to linear arrays of sequence-specific oligonucleotides. We used univariate conditional logistic regression analysis to test for associations of conventional vascular risk factors and the SNPs with stroke. Variables showing significant differences (P < 0.05) between cases and controls were included in a multivariate model. ROC curves were plotted to assess the contribution of genetic variation to stroke risk in addition to that of conventional risk factors. RESULTS: Univariate regression analysis revealed 3 SNPs with significant allelic differences between patients and controls, which fulfilled the criteria for further analysis. Only one of these SNPs, the C5 (complement component 5) 2416A>G variant (rs17611), remained significant after the multivariate analysis (odds ratio, 0.585; P = 0.0037). ROC curve analysis revealed no contribution of this genetic variation to stroke risk. CONCLUSIONS: We found evidence for an association of the 2416A>G polymorphism in the C5 gene with the risk for ischemic stroke. Our data suggest that the C5 gene particularly influences the risk for patients with microangiopathy. (C) 2008 American Association for Clinical Chemistry
引用
收藏
页码:134 / 138
页数:5
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