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Published on: April 1, 2019
Angiotensin-converting enzyme gene polymorphism in coronary artery disease in north India
Suraksha Agrawal1, Vivek Pratap Singh, Satyendra Tewari
1Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India. suraksha@sgpgi.ac.in
Insights
The angiotensin-converting enzyme (ACE) insertion/deletion polymorphism did not differ between coronary artery disease patients and controls in North India. However, the DD genotype was more common in patients over 50, suggesting a potential age-related association.
Area of Science:
- Genetics
- Cardiology
- Molecular Biology
Background:
- Coronary artery disease (CAD) is a significant health concern.
- Genetic factors play a role in CAD development.
- The angiotensin-converting enzyme (ACE) gene is a candidate gene for CAD.
Purpose of the Study:
- To investigate the association between ACE gene polymorphism and CAD in North Indian patients.
- To determine if specific ACE genotypes (DD, ID, II) are risk factors for CAD.
Main Methods:
- A case-control study involving 146 CAD patients and 146 controls.
- Genomic DNA extraction and analysis for ACE insertion/deletion polymorphism.
- Genotyping was performed by two independent investigators.
Main Results:
- No statistically significant difference in the distribution of ACE genotypes (DD, ID, II) was observed between CAD patients and controls.
- A significantly higher frequency of the DD genotype was found in CAD patients aged above 50 years compared to controls.
Conclusions:
- The ACE insertion/deletion polymorphism does not appear to be a major risk factor for CAD in the studied North Indian population.
- An age-dependent association of the DD genotype with CAD warrants further investigation and validation in diverse populations.
Background:
The aim of this study was to investigate the role of angiotensin-converting enzyme gene polymorphism in patients with coronary artery disease in north India.
Methods And Results:
One hundred forty-six patients with angiographically proven atherosclerotic coronary artery disease, and 146 age- and sex-matched control subjects (treadmill-negative) were included in the study. Genomic DNA was extracted and analyzed for angiotensin-converting enzyme insertion/deletion polymorphism. Two independent investigators scored the genotypes.
Conclusions:
When we compared the genotypes of patients with coronary artery disease with those of normal controls, it was seen that all three genotypes, i.e. DD, ID and II, were not statistically different among patients and controls. Further, we categorized the patient and control groups into 2 subgroups, i.e. below and above 50 years of age. Interestingly, it was observed that the DD genotype was significantly higher in patients in the higher age group (i.e. above 50 years of age). However, this needs further validation by studying patients with coronary artery disease from other parts of India.
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