Related Experiment Video
Updated: May 8, 2026
Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Genetic cardiomyopathies causing heart failure
Thomas J Cahill1, Houman Ashrafian, Hugh Watkins
1Department of Cardiovascular Medicine, University of Oxford, UK.
Insights
Genetic factors significantly influence heart failure (HF) risk and progression. Understanding these complex genetic underpinnings, from rare mutations to common variants, is crucial for developing new diagnostics and therapies for HF.
Area of Science:
- Cardiology
- Genetics
- Genomics
Background:
- Heart failure (HF) poses a significant global health burden despite medical advances.
- Genetic predisposition plays a complex and heterogeneous role in HF development and prognosis.
- Familial cardiomyopathies represent a spectrum from rare monogenic forms to complex polygenic influences.
Purpose of the Study:
- To review the current understanding of genetic contributions to heart failure.
- To highlight the challenges and opportunities in genetic research for HF.
- To discuss the implications for diagnostics and therapeutic strategies.
Main Methods:
- Review of existing literature on genetic heart failure syndromes and cardiomyopathies.
- Analysis of data from sequencing technologies and genetic variation annotation.
- Emphasis on pedigree analysis and clinical phenotyping.
Main Results:
- Monogenic HF syndromes offer insights into disease mechanisms, diagnostics, and therapies.
- Common genetic variants contribute to HF susceptibility and course.
- Distinguishing pathogenic mutations from benign variants is a key challenge.
Conclusions:
- Genetic research is advancing understanding of distinct HF subtypes.
- Novel sequencing technologies generate vast amounts of data requiring careful interpretation.
- Integrated approaches combining genetics, phenotyping, and bioinformatics are essential for future progress in HF management.
Abstract:
Despite the striking advances in medical and surgical therapy, the morbidity, mortality, and economic burden of heart failure (HF) remain unacceptably high. There is increasing evidence that the risk and course of HF depend on genetic predisposition; however, the genetic contribution to HF is heterogeneous and complex. At one end of the spectrum are the familial monogenic HF syndromes in which causative mutations are rare but highly penetrant. At the other, HF susceptibility and course may be influenced by more common, less penetrant genetic variants. As detailed in this review, efforts to unravel the basis of the familial cardiomyopathies at the mendelian end of the spectrum already have begun to deliver on the promise of informative mechanisms, novel gene-based diagnostics, and therapies for distinct subtypes of HF. However, continued progress requires the differentiation of pathogenic mutations, disease modifiers, and rare, benign variants in the deluge of data emerging from increasingly accessible novel sequencing technologies. This represents a significant challenge and demands a sustained effort in analysis of extended family pedigrees, diligent clinical phenotyping, and systematic annotation of human genetic variation.
Related Concept Videos
01:25Cardiomyopathy I: Introduction and Classification
01:29Cardiomyopathy III: Hypertrophic Cardiomyopathy
01:27Heart Failure I: Introduction
01:17Pathophysiology of Heart Failure
01:30Cardiomyopathy II: Dilated Cardiomyopathy
01:29Cardiomyopathy V: Interprofessional Care