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Angiotensin-converting enzyme gene D-allele and the severity of coronary artery disease
Maria-Cristina Vladeanu1, Iris Bararu Bojan1, Andrei Bojan2
1Department of Physiopathology, 'Grigore T. Popa' University of Medicine and Pharmacy, 700115 Iasi, Romania.
Insights
The angiotensin-converting enzyme (ACE) D-allele is linked to increased risk of severe coronary artery disease (CAD) and acute cardiac events. This genetic factor, particularly the DD genotype, interacts with other risk factors to worsen outcomes.
Area of Science:
- Cardiovascular Genetics
- Molecular Cardiology
- Genetic Epidemiology
Background:
- Coronary artery disease (CAD) is a leading global cause of death.
- Early diagnosis of CAD is crucial for preventing acute cardiovascular events.
- The angiotensin-converting enzyme (ACE) plays a key role in cardiovascular regulation.
Purpose of the Study:
- To investigate the association between ACE gene polymorphism (I/D) and the severity of CAD.
- To determine if specific ACE genotypes (II, ID, DD) correlate with acute coronary syndromes.
- To explore the interaction between ACE genotypes, CAD severity, and traditional risk factors.
Main Methods:
- Study included 154 patients admitted with acute coronary syndromes.
- Coronary angiography was performed to assess the degree of coronary stenosis.
- ACE genotypes were determined for all participating patients.
Main Results:
- The D-allele of the ACE gene was found to be associated with a higher risk of acute coronary events.
- A significant correlation was observed between the D-allele and severe coronary stenosis.
- The study highlighted an interaction between the risk genotype (D-allele) and risk phenotype (classic risk factors).
Conclusions:
- The D-allele of the ACE gene is a significant risk factor for acute coronary events and severe CAD.
- Genetic predisposition, as indicated by ACE polymorphism, can exacerbate cardiovascular risk.
- Understanding ACE genotype may aid in risk stratification for patients with coronary artery disease.
Abstract:
Coronary artery disease (CAD) is the first cause of morbidity and mortality worldwide. An important goal is to diagnose patients in early stages, in order to reduce acute cardiovascular events. The angiotensin-converting enzyme (ACE) is an important element for the cardiovascular system, through its actions on hydro-salin balance and vascular tone. ACE polymorphism consists of insertions (I)/deletions (D) and there are 3 genotypes: II, ID, DD. It is speculated that the DD genotype may be a genetic basis for severe CAD, while the II genotype may have a protective effect on the coronary arteries. The present study included 154 patients with acute coronary syndroms admitted to the Institute for Cardiovascular Disease 'George I.M. Georgescu', Iasi. The patients underwent coronary angiography in order to assess the severity of the lesions and the ACE genotypes were determined for each patient. The genotypes were correlated with the severity of the vessel-disease and the exposure to classic risk factors. It was concluded that the D-allele is associated with a greater risk for acute coronary events and severe coronary stenosis, especially when risk genotype and risk phenotype interact.
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