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Association between inflammatory gene polymorphisms and coronary artery disease in an Indian population
Indranil Banerjee1, Umeshwar Pandey, Omer M Hasan
1Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, 208016, India.
Insights
This study investigated genetic variations in inflammation-related genes for coronary artery disease (CAD) risk in North India. No significant association was found between the tested gene variants and CAD susceptibility.
Area of Science:
- Genetics
- Cardiovascular Disease Research
- Molecular Biology
Background:
- Inflammation is a key factor in atherosclerosis, the root cause of coronary artery disease (CAD).
- Genetic variations in inflammatory pathways are potential contributors to CAD risk.
- This study focuses on specific single nucleotide polymorphisms (SNPs) in genes linked to inflammation.
Purpose of the Study:
- To examine the association between six specific gene variants and the susceptibility to coronary artery disease (CAD).
- To investigate the role of SNPs in CD14, TNFalpha, IL-1alpha, IL-6, PSMA6, and PDE4D genes in CAD risk within a North Indian population.
Main Methods:
- A case-control study involving 210 CAD patients and 232 healthy controls.
- Genotyping was performed using the PCR-RFLP method.
- Statistical analyses included Chi-square and logistic regression to compare genotype and allele frequencies.
Main Results:
- None of the six single nucleotide polymorphisms (SNPs) demonstrated a statistically significant association with CAD.
- This lack of association persisted even after adjusting for confounding factors such as age, sex, hypertension, smoking, and diabetes.
- The findings indicate no direct genetic link between the studied variants and CAD in this population.
Conclusions:
- The study did not find any evidence to support an association between the investigated gene variants and coronary artery disease (CAD) in the North Indian population.
- The tested genetic polymorphisms in CD14, TNFalpha, IL-1alpha, IL-6, PSMA6, and PDE4D do not appear to be risk factors for CAD in this demographic.
- Further research may be needed to explore other genetic or environmental factors contributing to CAD in this region.
Background:
Inflammation is one of the major components of atherosclerosis which is the underlying disorder that leads to various diseases including coronary artery disease (CAD). Genes that are involved in the inflammatory processes are therefore good candidates for the risk of CAD. Variations in the genes involved in various molecular pathways of inflammation have been implicated to exaggerated atherosclerosis and the risk of cardiovascular diseases. In this study, we performed a genetic association study on the single nucleotide polymorphisms (SNPs) present in the genes CD14 (-159 C/T), TNFalpha (-308 G/A), IL-1alpha (-889 C/T), IL-6 (-174 G/C), PSMA6 (-8 C/G), and PDE4D (SNP83 T/C, respectively) in order to discern their possible role in the susceptibility to CAD in a North Indian population.
Methods:
Angiographically proven CAD patients (n = 210) and age, sex and ethnically matched normal healthy controls (n = 232) were recruited for this case-control study. Genotypes were determined by PCR-RFLP method. Chi-square and logistic regression analyses were performed to compare the genotype and allele frequencies between the patient and the control groups.
Results:
None of the SNPs showed significant association with CAD in the study population before and after adjustment for the confounding risk factors like age, sex, hypertension, smoking habit, and diabetes.
Conclusion:
This study was unable to demonstrate any association between the six gene variants tested and CAD in the North Indian population.
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