Related Experiment Video
Updated: Jul 6, 2026

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
[Monogenic heart disease]
1Medizinische Klinik und Poliklinik I/ Herzkreislauf-Zentrum und Institut für Klinische Biochemie und Pathobiochemie, Universität Würzburg, Josef-Schneider-Strasse 2, Würzburg. j.schoenberger@medizin.uni-wuerzburg.de
Insights
Most cardiovascular diseases have complex causes, but some single-gene (monogenic) disorders offer insights into genetic defects and pathophysiology. Understanding these genetic factors aids in personalized risk assessment and medical care for affected families.
Area of Science:
- Cardiovascular Science
- Genetics
- Pathophysiology
Context:
- Cardiovascular disorder pathogenesis is typically multifactorial, involving genetic, nutritional, and environmental factors.
- A subset of cardiovascular diseases exhibits Mendelian traits, stemming from single gene defects.
- Even monogenic cardiovascular diseases show variable expressivity, indicating the presence of modifying factors.
Purpose:
- To explore the genetic underpinnings of cardiovascular diseases, particularly monogenic forms.
- To understand the role of genetic defects in cardiovascular pathophysiology.
- To highlight the utility of genetic diagnostics in managing inherited cardiovascular conditions.
Summary:
- While most cardiovascular diseases are complex, monogenic disorders like familial cardiomyopathies provide clear examples of single gene defects.
- Investigating these monogenic conditions reveals underlying genetic causes and aids in understanding disease mechanisms.
- Modifying factors influence disease penetrance even in monogenic cardiovascular diseases.
- Genetic diagnostics enable personalized medical care by assessing individual risks in offspring.
Impact:
- Identification of specific genetic defects in monogenic cardiovascular diseases deepens our understanding of pathophysiology.
- Predictive genetic diagnostics allow for tailored medical management based on individual risk profiles.
- This research contributes to advancing precision medicine in the field of cardiology.
Abstract:
The pathogenesis of most cardiovascular disorders is multifactorial and incompletely understood. Besides genetic influences that often arise from multiple genetic loci, the specific nutritional and environmental influences do contribute to the dysfunctional development. Nevertheless, a rather small number of cardiovascular diseases exhibits Mendelian traits, since they are caused by a single gene defect. Examples are familial cardiomyopathies, primary arrhythmias and connective tissues disorders of vessels. More detailed investigations reveal that even these entities are usually not purely monogenic, as they do not appear with the same intensity in all mutation carriers. Hence, there must be further modifying factors that influence the penetrance of the disease. Despite this limitation monogenic diseases allow the identification of the underlying genetic defects and thereby a deeper insight into the pathophysiology. Predictive genetic diagnostics, on the other hand, permit a better adaptation of medical care to the individual risk of offspring that are not yet affected.
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy IV: Restrictive Cardiomyopathy
Heart Failure II: Pathophysiology
Coronary Artery Disease II: Pathophysiology

