A Common Polymorphism in the Promoter Region of the TNFSF4 Gene Is Associated with Lower Allele-Specific Expression and Risk of Myocardial Infarction
2011

TNFSF4 Gene Polymorphism and Myocardial Infarction Risk

Sample size: 764 publication 10 minutes Evidence: moderate

Author Information

Author(s): Ria Massimiliano, Lagercrantz Jacob, Samnegård Ann, Boquist Susanna, Hamsten Anders, Eriksson Per

Primary Institution: Karolinska University Hospital Solna, Stockholm, Sweden

Hypothesis

Is there a genetic variant in the TNFSF4 gene that influences the risk of myocardial infarction in women?

Conclusion

The TNFSF4 rs45454293T-allele is associated with lower TNFSF4 expression and increased risk of myocardial infarction.

Supporting Evidence

  • Genetic variants in TNFSF4 are associated with myocardial infarction in women.
  • The rs45454293T-allele is linked to lower transcriptional activity.
  • Functional studies showed that the T-allele decreases gene expression.
  • Allele-specific binding of nuclear proteins was observed for the rs45454293 polymorphism.

Takeaway

A specific change in a gene related to inflammation can make some women more likely to have heart attacks.

Methodology

The study involved genotyping and functional analyses of TNFSF4 polymorphisms in patients with myocardial infarction and controls.

Potential Biases

Potential bias due to the specific demographic focus on women and the reliance on self-reported data.

Limitations

The study's findings may not be generalizable beyond the specific populations studied.

Participant Demographics

The study included 387 individuals with myocardial infarction before age 60 and 387 age- and sex-matched controls.

Statistical Information

P-Value

0.02

Confidence Interval

95% confidence interval (0.77–1.49)

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017652

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