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Study of the association between growth differentiation factor 15 gene polymorphism and coronary artery disease in a
Zhong Chen1, Fangyi Xie, Genshan Ma
1Department of Cardiology, The Affiliated Zhongda Hospital and School of Medicine, Southeast University, No. 87 Dingjiaqiao, Nanjing 210009, People's Republic of China. zhongchen7498@sina.com
Insights
The GDF-15 -3148C>G variant (rs4808793) is not associated with coronary artery disease (CAD) risk or severity in the Chinese population. Genetic analysis found no link between this specific GDF-15 gene variant and the development or progression of CAD.
Area of Science:
- Genetics
- Cardiology
- Molecular Biology
Background:
- Growth differentiation factor (GDF)-15, a member of the transforming growth factor-β superfamily, is linked to cardiovascular diseases.
- Elevated GDF-15 levels correlate with increased risk of adverse cardiac events and heart failure.
- The genetic underpinnings of GDF-15's role in cardiovascular disease remain largely unknown.
Purpose of the Study:
- To investigate the association between the GDF-15 -3148C>G variant (SNP, rs4808793) and the predisposition to coronary artery disease (CAD).
- To evaluate the relationship between rs4808793 and the severity of coronary artery disease in a Chinese population.
Main Methods:
- A case-control study involving 418 Chinese participants (192 CAD cases, 226 controls).
- Genotyping of the GDF-15 -3148C>G variant (rs4808793) using the ligase detection reaction method.
- Logistic regression analysis to assess the association with CAD risk and severity, stratified by sex.
Main Results:
- No significant differences in genotype distribution or allele frequencies of rs4808793 were observed between CAD cases and controls.
- Logistic regression analysis showed no increased risk of CAD associated with CG or GG genotypes, or the G allele compared to CC genotype or C allele.
- Rs4808793 was not found to be associated with anthropometric/metabolic characteristics or the severity of coronary lesions.
Conclusions:
- The GDF-15 -3148C>G variant (rs4808793) does not appear to be a significant genetic risk factor for coronary artery disease in the studied Chinese population.
- This specific GDF-15 gene variant is not associated with the severity of coronary artery disease or key clinical characteristics.
- Further research may be needed to explore other genetic factors influencing GDF-15 levels and cardiovascular risk.
Abstract:
Growth differentiation factor (GDF)-15 belongs to a member of the transforming growth factor-β cytokine superfamily, and elevated GDF-15 concentrations are linked to increased risk of cardiovascular diseases and future adverse cardiac events in apparently healthy elderly women, acute coronary syndrome, and chronic heart failure. However, its genetic mechanisms are still unknown. We investigated whether GDF-15 -3148C>G variant (SNP, rs4808793) is associated with a predisposition to coronary artery disease (CAD) and its severity in a Chinese population. We studied 418 consecutive patients, including 192 with coronary stenosis ≥50% or previous myocardial infarction and 226 controls without documented CAD. Coronary artery disease cases and controls were genotyped for SNP rs4808793 by using the ligase detection reaction method. The three genotypes CC, CG, and GG were present in rs4808793. No differences were found in genotype distribution and allele frequencies of rs4808793 between subjects with and without CAD, or when grouped according to sex. Logistic regression did not reveal any increased risk of CAD in subjects carrying the CG, GG genotype, or G allele at rs4808793 compared with individuals carrying the CC genotype or C allele; this finding was the same when subjects were grouped by sex (all P > 0.05). Rs4808793 does not affect main anthropometric and metabolic characteristics, nor did there exists any association between rs4808793 and the severity of coronary lesions (all P > 0.05). Our data do not support an association of rs4808793 with CAD or its severity in a Chinese population.
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