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Updated: Sep 29, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Research progress of the correlation between genotype and phenotype in hypertrophic cardiomyopathy
Tian Shu1,2, Hao-Chang Hu1,2, Cai-Jie Shen1
1Ningbo Hospital of Zhejiang University, Ningbo 315000, China.
Insights
Hypertrophic cardiomyopathy (HCM) is a genetic heart disease influenced by gene mutations. Research explores how HCM genotypes affect phenotypes and guides genetic treatment development.
Area of Science:
- Cardiovascular Genetics
- Molecular Cardiology
Background:
- Hypertrophic cardiomyopathy (HCM) is an autosomal dominant genetic disorder affecting 1/500-1/200 individuals.
- Over 1500 mutations in 30+ genes are linked to HCM, causing diverse clinical presentations.
- Phenotypic heterogeneity arises from pathogenic mutations, modifying gene polymorphisms, and environmental factors.
Purpose of the Study:
- To investigate the relationship between hypertrophic cardiomyopathy genotype and phenotype.
- To summarize current research on HCM's genetic basis, pathogenesis, and treatment strategies.
Main Methods:
- Review of scientific literature on hypertrophic cardiomyopathy genetics.
- Analysis of genotype-phenotype correlations in HCM.
Main Results:
- HCM exhibits significant phenotypic variability, from asymptomatic cases to sudden cardiac death.
- Pathological hallmarks include cardiomyocyte hypertrophy, disarray, fibrosis, and ischemia.
- Genotype-phenotype correlation studies are advancing understanding of disease mechanisms.
Conclusions:
- Understanding HCM genetics is crucial for developing targeted therapies.
- Further research into genotype-phenotype interactions will refine personalized treatment approaches for HCM.
- Genetic insights are paving the way for novel therapeutic strategies in hypertrophic cardiomyopathy.
Abstract:
Hypertrophic cardiomyopathy (HCM) is an autosomal dominant genetic disease characterized by left ventricular hypertrophy with prevalence of 1/500-1/200. Up to now, 1500 mutations in more than 30 genes have been found to be related to the disease. Pathogenic gene mutations together with polymorphisms of modifying genes and environmental factors play various roles in the disease processes, resulting in phenotypic heterogeneity of the disease, ranging from no symptoms to sudden cardiac death. The pathological phenotypes of HCM mainly include cardiomyocyte hypertrophy, disordered array, fibrosis, myocardial ischemia, and others. In recent years, many research efforts have been devoted to exploring the influence of HCM genotype on phenotype, and development of treatment methods based on genetics. This article focuses on the correction between HCM genotype and phenotype and summarizes the research progresses on HCM in terms of pathogenic genes, pathogenesis, associated modification factors and treatment methods, thereby providing insights on the future research and development on the genetics of HCM.
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