Related Experiment Video
Updated: May 10, 2026
10:03
Evaluation of Right Ventricular Function in Experimental Models of Pulmonary Arterial Hypertension
Published on: June 27, 2025
Right ventricle in pulmonary hypertension
Norbert F Voelkel1, Ramesh Natarajan, Jennifer I Drake
1Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, The Victoria Johnson Center for Pulmonary Obstructive Disease Research, Virginia Commonwealth University, Richmond, Virginia, USA. nvoelkel@mcvh-vcu.edu
Comprehensive Physiology
|June 6, 2013
Summary
Understanding right heart failure is crucial for treating pulmonary hypertension. This study explores the cellular and molecular changes in the right ventricle during hypertrophy and failure, aiming to improve patient outcomes.
Area of Science:
- Cardiovascular Biology
- Cardiac Pathophysiology
- Molecular Cardiology
Background:
- Heart development involves precise gene regulation for chamber specification.
- Fetal heart gene expression patterns are re-expressed during heart failure.
- Chronic pulmonary hypertension leads to right ventricle (RV) hypertrophy, often progressing to failure.
Purpose of the Study:
- To elucidate the cellular and molecular mechanisms underlying RV hypertrophy and failure in the context of pulmonary hypertension.
- To highlight the differences between the right and left ventricles in the progression to heart failure.
- To establish a foundation for developing therapeutic strategies for RV failure.
Main Methods:
- Comparative analysis of RV and left ventricle (LV) characteristics.
- Review of cellular and molecular changes during RV adaptation and decompensation.
- Examination of gene expression patterns relevant to heart development and failure.
Main Results:
- RV hypertrophy in pulmonary hypertension is initially adaptive but can lead to decompensation and failure.
- Specific cellular and molecular pathways differentiate RV from LV failure.
- Reactivation of fetal gene expression programs is implicated in RV remodeling.
Conclusions:
- Understanding the pathobiology of RV hypertrophy and failure is essential for managing patients with severe pulmonary hypertension.
- Targeting the molecular mechanisms of RV remodeling holds therapeutic potential.
- Further research into RV-specific changes is needed to prevent and treat RV failure.
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