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Updated: Jul 11, 2026

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Genetic basis of hypertrophic cardiomyopathy: from bench to the clinics
Ronny Alcalai1, Jonathan G Seidman, Christine E Seidman
1Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.
Insights
Hypertrophic cardiomyopathy (HCM) is an inherited heart condition caused by sarcomere gene mutations. This review explores new genes, disease mechanisms, and factors influencing HCM
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Hypertrophic cardiomyopathy (HCM) is a common inherited cardiac disorder.
- It is characterized by left ventricular wall thickening without external load.
- HCM is a leading cause of sudden cardiac death and heart failure.
Purpose of the Study:
- To review current research on hypertrophic cardiomyopathy.
- Focus on discovery of new causative genes.
- Investigate disease mechanisms and modifying factors.
Main Methods:
- Review of current scientific literature on HCM.
- Analysis of genetic mutations and their impact.
- Exploration of molecular and clinical data.
Main Results:
- Over 450 mutations identified in 13 myofilament-related genes.
- Ongoing research into novel causative genes.
- Understanding of mechanisms linking sarcomere mutations to hypertrophy and arrhythmia.
Conclusions:
- Molecular advances are crucial for understanding HCM.
- Identifying modifying factors is key to managing clinical expression.
- Clinical implications of molecular discoveries are discussed.
Abstract:
Hypertrophic cardiomyopathy (HCM) is a common inherited cardiac disorder that characterized by marked thickening of the left ventricular wall that occurs in the absence of increased external load. HCM is the most common cause of sudden cardiac death under 35 years and in addition causes heart failure. HCM is usually inherited as an autosomal dominant mutation in genes that encode protein constituents of the sarcomere. To date, more than 450 different mutations have been identified within 13 myofilament-related genes. This review focuses current research involved in the discovery of other causative genes, investigation of the mechanisms by which sarcomere genes mutations produce hypertrophy and arrhythmia, and identification of modifying factors that influence clinical expression in HCM patients. The clinical implications of molecular advances in HCM are discussed.
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