Related Experiment Video

Updated: May 5, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
07:31

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats

Published on: December 2, 2016

9.8K

ECM remodeling in hypertensive heart disease

Bradford C Berk1, Keigi Fujiwara, Stephanie Lehoux

  • 1Cardiovascular Research Institute and Department of Medicine, University of Rochester, Rochester, NY 14642, USA. bradford_berk@urmc.rochester.edu

The Journal of Clinical Investigation
|March 3, 2007
PubMed

Insights

Hypertensive heart disease (HHD) leads to heart failure through left ventricular hypertrophy and cardiac fibrosis. Targeting enzymes regulating extracellular matrix (ECM) homeostasis may offer new therapeutic strategies for HHD.

Area of Science:

  • Cardiology
  • Pathophysiology
  • Biochemistry

Background:

  • Hypertensive heart disease (HHD) is an increasingly common cause of heart failure, affecting both diastolic and systolic function.
  • Key pathological features of HHD include left ventricular (LV) hypertrophy and cardiac fibrosis.
  • These changes are driven by alterations in the local and systemic neurohormonal environment.

Purpose of the Study:

  • To explore the role of matrix metalloproteinases (MMPs) and their inhibitors in the fibrotic process of HHD.
  • To investigate the impact of extracellular matrix (ECM) composition on cardiomyocyte function in HHD.
  • To identify potential novel therapeutic targets for modifying HHD progression.

Main Methods:

  • Analysis of the balance between MMPs and their inhibitors in the context of HHD.
  • Assessment of ECM composition and its effects on cardiomyocyte function.
  • Review of recent research on enzyme-based therapies for ECM homeostasis.

Main Results:

  • The fibrotic state in HHD is characterized by an altered balance between MMPs and their inhibitors.
  • Changes in ECM composition due to this imbalance impair cardiomyocyte function.
  • Targeting enzymes involved in ECM homeostasis shows promise for HHD treatment.

Conclusions:

  • Therapeutic strategies focused on ECM homeostasis enzymes may offer a novel approach to managing Hypertensive Heart Disease.
  • Understanding the MMP/inhibitor balance is crucial for developing effective treatments.
  • Modulating ECM remodeling could improve cardiac function in HHD patients.

More Related Videos

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents07:26

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents

Published on: July 14, 2021

4.6K
A Rat Model of Pressure Overload Induced Moderate Remodeling and Systolic Dysfunction as Opposed to Overt Systolic Heart Failure07:13

A Rat Model of Pressure Overload Induced Moderate Remodeling and Systolic Dysfunction as Opposed to Overt Systolic Heart Failure

Published on: April 30, 2020

6.1K

Related Concept Videos

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...
5.1K
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
2.1K
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...
2.1K
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
641
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...
810
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...
761