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Coronary risk factors: new perspectives
G Niccoli1, L Iacoviello, D Cianflone
1Istituto di Cardiologia, Universita Cattolica, Roma, Italy.
Insights
Understanding individual susceptibility to myocardial infarction (MI) is key. Genetic factors and new risk markers could personalize prevention strategies for better outcomes.
Area of Science:
- Cardiology
- Genetics
- Preventive Medicine
Background:
- Acute myocardial infarction (MI) has complex causes, including genetic predisposition.
- Traditional risk factors are effective but have limitations in sensitivity and population-wide application.
- Current preventive strategies for ischemic heart disease (IHD) are suboptimal for low/moderate risk groups and inefficient for medium-risk individuals.
Purpose of the Study:
- To explore the potential for improved preventive strategies for IHD.
- To identify new risk factors, genetic susceptibilities, and protective genotypes.
- To enable personalized preventive strategies based on individual susceptibility.
Main Methods:
- Review of existing literature on MI etiology, risk factors, and genetic influences.
- Analysis of traditional risk factor control effectiveness.
- Exploration of emerging research on genetic markers, novel risk factors, and gene-environment interactions.
Main Results:
- While traditional risk factors have yielded remarkable achievements, they have limited sensitivity in certain populations.
- New risk factors, specific genotypes, and their interactions with environmental factors are crucial for understanding individual susceptibility.
- Early findings suggest potential for cost-effective, individualized MI prevention.
Conclusions:
- Personalized preventive strategies for MI, based on individual genetic susceptibility and novel risk factors, are a promising future direction.
- Further rigorous population-based studies are needed to validate emerging genetic markers and risk factors.
- Integrating genetic and environmental insights may revolutionize IHD prevention, moving towards tailored interventions.
Abstract:
The predisposing and precipitating causes of acute myocardial infarction (MI) are multiple; furthermore, different individuals may have different susceptibility, to a large extent genetically determined, to each of them. In spite of the complex aetiology of MI and of our limited knowledge of the causes responsible for the formation of persistent occlusive thrombosis in epicardial coronary arteries, the achievements obtained by controlling traditional risk factors are remarkable. Traditional risk factors, however, have a limited sensitivity among subjects with low/moderate levels of risk. Furthermore, in particular among subjects at medium risk, current preventive strategies are limited by the low incidence of preventable events which makes it necessary to also treat the vast majority of subjects who would not develop cardiac events even without any treatment. An improvement in preventive strategies for IHD can be achieved with the identification of: (1) new risk factors; (2) genotypes enhancing the susceptibility to specific risk factors; (3) phenotypes and genotypes making patients susceptible to specific preventive strategies; (4) genotypes protecting from risk factors. Although a word of caution is necessary as a number of recent studies on genetic markers, on new risk factors and on the interaction between genetic markers and environment have failed to withstand the rigour of population-based studies, the early findings available to date suggest that cost-effective preventive strategies based on individual susceptibility to specific predisposing and precipitating causes of MI may become a reality in the foreseeable future.