Related Experiment Video
Updated: May 19, 2026
03:45
Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Genetics and metabolic cardiomyopathies.
1The Heart Hospital, 16-18 Westmoreland Street, W1G 8PH, London, UK.
Herz
|September 1, 2012
Summary
Inborn errors in metabolism (IEMs) can cause heart muscle disease, including cardiomyopathy. Diagnosing these rare metabolic disorders is crucial for effective, targeted treatment strategies.
Area of Science:
- Cardiology
- Metabolic Disorders
- Genetics
Background:
- Metabolic disorders frequently impact cardiovascular health.
- The heart's high metabolic demand makes it susceptible to inborn errors in metabolism (IEMs).
- Cardiac manifestations of IEMs include cardiomyopathy, arrhythmia, and valvular dysfunction.
Purpose of the Study:
- To review common genetic defects in metabolic pathways that lead to heart muscle disease.
- To highlight the importance of diagnosing IEMs presenting with cardiac symptoms.
Main Methods:
- Literature review of genetic defects affecting metabolic pathways and causing cardiomyopathy.
- Analysis of reported IEMs associated with cardiac manifestations.
Main Results:
- Over 40 IEMs are known to cause cardiomyopathy.
- Examples include fatty acid oxidation defects, storage diseases, mitochondrial disorders, and aminoacidopathies.
- IEMs account for approximately 5% of all cardiomyopathies.
Conclusions:
- Early diagnosis of IEMs is essential for initiating specific management.
- Understanding the genetic basis of metabolic cardiomyopathies is key to improving patient outcomes.
Related Concept Videos
01:29Cardiomyopathy 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...
01:25Cardiomyopathy 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...
01:30Cardiomyopathy 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,...
01:29Cardiomyopathy 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...
01:29Cardiomyopathy IV: Restrictive Cardiomyopathy
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...