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.
Abstract

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