Current perspectives in genetic cardiovascular disorders: from basic to clinical aspects

Area of Science:

• Cardiovascular Genetics
• Molecular Cardiology
• Clinical Genetics

Background:

• Monogenic cardiovascular diseases like hypercholesterolemia, hypertrophic cardiomyopathy (HCM), and lethal arrhythmias are crucial for understanding heart pathophysiology.
• Familial hypercholesterolemia is a common genetic cardiovascular disease linked to vascular damage.
• Genetic factors significantly influence the development of heart failure and arrhythmias.

Purpose of the Study:

• To summarize recent advances in the clinical genetics of hypercholesterolemia, HCM, and lethal arrhythmias.
• To highlight the role of gene mutations in the pathophysiology of these cardiovascular disorders.
• To emphasize the importance of genetic mechanisms in clinical diagnosis and therapeutic strategies.

Main Methods:

• Review of recent advances in clinical genetics.
• Identification of gene mutations associated with hypercholesterolemia, HCM, and lethal arrhythmias.
• Functional analysis of identified gene mutations.

Main Results:

• Advances in identifying gene mutations for familial hypercholesterolemia, including low-density lipoprotein receptor and PCSK9.
• Correlation between specific gene mutations and clinical manifestations in HCM.
• Identification of gene mutations in potassium and sodium ion channels linked to lethal arrhythmias (e.g., LQTS, Brugada syndrome).
• Demonstration of gene polymorphism in the renin-angiotensin system as a modifier gene for heart failure.

Conclusions:

• Genetic mechanisms are fundamental to understanding and diagnosing hypercholesterolemia, HCM, and lethal arrhythmias.
• Functional analysis of gene mutations provides insights into disease pathophysiology.
• Integrating genetic insights into clinical practice can improve diagnosis and guide therapeutic interventions for cardiovascular diseases.