Single Nucleotide Polymorphisms of TCF7L2 Are Linked to Diabetic Coronary Atherosclerosis
2011

Link Between TCF7L2 Gene Variants and Diabetic Coronary Atherosclerosis

Sample size: 1650 publication 10 minutes Evidence: high

Author Information

Author(s): Muendlein Axel, Saely Christoph H., Geller-Rhomberg Simone, Sonderegger Gudrun, Rein Philipp, Winder Thomas, Beer Stefan, Vonbank Alexander, Drexel Heinz

Primary Institution: Vorarlberg Institute for Vascular Investigation and Treatment, Feldkirch, Austria

Hypothesis

Are TCF7L2 polymorphisms associated with coronary atherosclerosis in diabetic and non-diabetic patients?

Conclusion

TCF7L2 variants are significantly associated with coronary artery disease, especially in patients with type 2 diabetes.

Supporting Evidence

  • Variant rs7903146 was significantly associated with significant CAD in the total study cohort.
  • Variants rs12255372 and rs11196205 were also significantly associated with CAD in diabetic patients.
  • The interaction risk allele by T2DM was significant, indicating a stronger impact of the polymorphism on CAD in T2DM patients.
  • Haplotype analysis showed significant associations with CAD in both the whole cohort and diabetic subjects.

Takeaway

This study found that certain gene variations are linked to heart disease in people with diabetes, suggesting a genetic connection between diabetes and heart problems.

Methodology

Cross-sectional study genotyping TCF7L2 variants in patients undergoing coronary angiography.

Limitations

Results may not be applicable to the general population as the study focused on high-risk patients undergoing angiography.

Participant Demographics

Predominantly white patients, with 66.4% male and 23.8% having type 2 diabetes.

Statistical Information

P-Value

p=0.001 for T2DM patients with rs7903146

Confidence Interval

1.29 [1.09–1.53]

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017978

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