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Updated: May 31, 2026

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
[Advances in the molecular pathogenesis of hypertrophic cardiomyopathy]
Yan-Rui Song1, Zhong Liu, Shu-Lian Gu
1College of Life Sciences, Zhejiang University, Hangzhou 310058, China. syr601@126.com
Insights
Hypertrophic Cardiomyopathy (HCM), a genetic heart condition causing thickened heart walls, affects 1 in 500 people. This review explores the molecular causes of HCM, including sarcomere and mitochondrial DNA mutations.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Context:
- Hypertrophic Cardiomyopathy (HCM) is a primary cardiac disorder.
- It affects 1 in 500 individuals and is a leading cause of sudden death in young people.
- HCM presents with variable clinical phenotypes, onset age, symptoms, and sudden death risk.
Purpose:
- This review focuses on the molecular pathogenic mechanisms of HCM.
- It highlights recent advances in understanding HCM's molecular basis.
- The review aims to consolidate current knowledge on genetic and molecular factors contributing to HCM.
Summary:
- HCM is characterized by asymmetric thickening of the cardiac septum and left ventricular wall.
- It is primarily inherited as an autosomal dominant trait, with over 900 mutations identified in sarcomere protein genes.
- Mitochondrial DNA mutations are increasingly recognized as contributing to HCM pathogenesis.
Impact:
- Understanding HCM's molecular mechanisms is crucial for diagnosis and treatment.
- Identifying genetic mutations aids in risk stratification and personalized medicine approaches.
- Advances in molecular understanding pave the way for novel therapeutic strategies for HCM.
Abstract:
Hypertrophic Cardiomyopathy (HCM) is a primary cardiac disorder characterized by asymmetric thickening of the septum and left ventricular wall. HCM affects 1 in 500 individuals in the general population, and it is the most common cause of sudden death in the young and athletes. The clinic phenotype of HCM is highly variable with respect to age at onset, degree of symptoms, and risk of sudden death. HCM is usually inherited as a Mendelian autosomal dominant trait. To date, over 900 mutations have been reported in HCM, which were mainly located in 13 genes encoding cardiac sarcomere protein, e.g., MYH7, MYBPC3, and TnT. In addition, more and more mitochondrial DNA mutations were reported to be associated with the pathogenesis of HCM. Based on the description of the clinical phenotype and morphological characteristics, this review focuses on the research in the molecular pathogenic mechanism of HCM and its recent advances.
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