Related Experiment Video
Updated: Aug 7, 2026

04:41
Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease
Published on: July 3, 2018
Genetic risk factors for myocardial infarction
1Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
Current Opinion in Cardiology
|July 3, 1998
Summary
Genetic and environmental factors contribute to myocardial infarction (MI) risk. Identifying genetic susceptibility factors and their interactions is key for personalized prevention and treatment strategies.
Area of Science:
- Cardiovascular Genetics
- Molecular Medicine
Background:
- Myocardial infarction (MI) is a complex condition influenced by genetic and environmental interactions.
- Familial aggregation and twin studies indicate a genetic predisposition to MI.
- Molecular genetics has identified numerous potential genetic risk factors for MI.
Purpose of the Study:
- To explore the genetic underpinnings of myocardial infarction.
- To identify candidate genes contributing to MI susceptibility.
- To understand the interplay between genetic, environmental, and conventional risk factors in MI pathogenesis.
Main Methods:
- Review of molecular genetics findings related to MI.
- Identification of candidate genes involved in vascular homeostasis, thrombosis, and lipid metabolism.
- Analysis of functional variants in genes such as ACE, beta-fibrinogen, and apolipoproteins.
Main Results:
- Several genes, including ACE, beta-fibrinogen, and apolipoprotein genes, are implicated as risk factors for MI.
- Functional variants in these genes contribute to the genetic susceptibility of MI.
- The final MI phenotype results from interactions between susceptibility genes, modifier genes, and environmental factors.
Conclusions:
- Understanding the complex genetic architecture of MI is crucial for advancing cardiovascular medicine.
- Genetic insights can facilitate the development of novel risk stratification tools.
- Personalized approaches to MI prevention and treatment may emerge from this research.
Related Concept Videos
Ischemic Heart Disease: Overview
Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
Myocarditis I: Introduction
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Coronary Artery Disease I: Introduction
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Heart Failure I: Introduction
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...

