Related Experiment Video

Updated: May 28, 2026

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
03:45

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model

Published on: August 8, 2022

Mechanisms of disease: hypertrophic cardiomyopathy

Norbert Frey1, Mark Luedde, Hugo A Katus

  • 1Department of Cardiology and Angiology, University of Kiel, Schittenhelmstrasse 12, 24105 Kiel, Germany.

Nature Reviews. Cardiology
|October 27, 2011
PubMed

Insights

Hypertrophic cardiomyopathy (HCM) is a genetic heart disease causing thickened walls and arrhythmias. Research is clarifying molecular pathways to improve therapies for this common cause of sudden cardiac death.

Area of Science:

  • Cardiology
  • Genetics
  • Molecular Biology

Background:

  • Hypertrophic cardiomyopathy (HCM) is the most common monogenic inherited heart disease.
  • It leads to left ventricular thickening, contractile dysfunction, and potentially fatal arrhythmias.
  • HCM is the leading cause of sudden cardiac death in individuals under 35.

Purpose of the Study:

  • To review the genetic basis of HCM, including over 900 mutations in 20 genes.
  • To explore the unclear molecular events leading to the HCM clinical phenotype.
  • To discuss potential pathological pathways for improved HCM therapies.

Main Methods:

  • Review of genetic mutations in sarcomeric proteins (e.g., MYH7, MYBPC3, TNNT2).
  • Discussion of proposed molecular pathways including calcium cycling, fibrosis, biomechanical stress, and energy homeostasis.
  • Synthesis of current understanding to guide future therapeutic development.

Main Results:

  • Identification of over 900 mutations in more than 20 genes, primarily encoding sarcomeric proteins.
  • Elucidation of potential molecular mechanisms contributing to HCM pathogenesis.
  • Highlighting the need for a deeper understanding of these pathways for targeted therapies.

Conclusions:

  • Understanding the molecular mechanisms of HCM is crucial for developing effective and specific treatments.
  • Investigating pathways like calcium handling, fibrosis, and energy metabolism is key.
  • Improved knowledge will enhance therapeutic success for patients with hypertrophic cardiomyopathy.

More Related Videos

An Approach to Study Shape-Dependent Transcriptomics at a Single Cell Level06:02

An Approach to Study Shape-Dependent Transcriptomics at a Single Cell Level

Published on: November 2, 2020

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix10:21

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Published on: June 14, 2016

Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...