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Journal of Neuroinflammation

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Open Access 01-12-2012 | Research

Polymorphism of tumor necrosis factor alpha (TNF-alpha) gene promoter, circulating TNF-alpha level, and cardiovascular risk factor for ischemic stroke

Authors: Guanglin Cui, Haoran Wang, Rui Li, Lina Zhang, Zongzhe Li, Yan Wang, Rutai Hui, Hu Ding, Dao Wen Wang

Published in: Journal of Neuroinflammation | Issue 1/2012

Abstract

Background

Tumor necrosis factor-α (TNF-α) is one of the most typical pro-inflammatory cytokines with both beneficial and destructive properties for the central nervous system. Increasing evidences have demonstrated the important role of TNF-α in the development of ischemic stroke, but studies examining the possible association with stroke or direct functional effects of polymorphisms in TNF-α have been contradictory.

Findings

In this study, a 2-kb length of the proximal promoter of the TNF-α was screened and four polymorphisms were investigated in the case–control study. Our data confirmed the association between -308G/A variant with stroke in 1,388 stroke patients and 1,027 controls and replicated in an independent population of 961 stroke patients and 821 controls (odds ratio (OR) = 1.34, 95% confidence interval (CI) =1.02 to 1.77 and OR = 1.56, 95% CI = 1.09 to 2.23, respectively). To reconcile the association between polymorphisms and stroke and to give a comprehensive picture of the genetic architecture of this important gene, we performed a meta-analysis of 15 published studies in an Asian population. Our results demonstrated an association between rs1800629 and ischemic stroke (OR = 1.43, 95% CI = 1.21 to 1.69). Another meta-analysis results of 14 studies demonstrated that ischemic stroke patients have higher serum TNF-α level than the control subjects (standardized mean difference (SMD) = 2.33, 95% CI = 1.85 to 2.81). In vitro evaluation of potential interaction between variants of the TNF-α gene (−308G/A, -857C/T, and -1031T/C) demonstrated that these three polymorphisms could interact together to determine the overall activity of the TNF-α gene.

Conclusions

These findings strongly implicate the involvement of TNF-α in the pathogenesis of stroke.

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Title: Polymorphism of tumor necrosis factor alpha (TNF-alpha) gene promoter, circulating TNF-alpha level, and cardiovascular risk factor for ischemic stroke
Authors: Guanglin Cui
Haoran Wang
Rui Li
Lina Zhang
Zongzhe Li
Yan Wang
Rutai Hui
Hu Ding
Dao Wen Wang
Publication date: 01-12-2012
Publisher: BioMed Central
Published in: Journal of Neuroinflammation / Issue 1/2012
Electronic ISSN: 1742-2094
DOI: https://doi.org/10.1186/1742-2094-9-235

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Polymorphism of tumor necrosis factor alpha (TNF-alpha) gene promoter, circulating TNF-alpha level, and cardiovascular risk factor for ischemic stroke

Abstract

Background

Findings

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Findings

Conclusions

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