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Updated: May 9, 2026

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice

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Left ventricular noncompaction in Duchenne muscular dystrophy.

Christopher J Statile¹, Michael D Taylor, Wojciech Mazur

¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. Christopher.statile@cchmc.org

Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance

|August 7, 2013

Summary

Left ventricular noncompaction (LVNC) affects 28% of Duchenne Muscular Dystrophy (DMD) patients, impacting left ventricular (LV) systolic function over time. This suggests muscular degeneration rather than compensatory remodeling in DMD hearts.

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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Published on: October 28, 2020

Area of Science:

Cardiology
Genetics
Biomedical Engineering

Background:

Left ventricular noncompaction (LVNC) is characterized by deep endocardial trabeculations and a thin epicardium.
LVNC can manifest as a primary cardiomyopathy or secondary to other myocardial conditions, including neuromuscular disorders.
Duchenne Muscular Dystrophy (DMD) is a progressive neuromuscular disorder that can affect cardiac function.

Purpose of the Study:

To determine the prevalence of LVNC in individuals with Duchenne Muscular Dystrophy (DMD).
To characterize the relationship between LVNC and global left ventricular (LV) function in the DMD population.
To investigate the progression of LVNC in DMD patients over time.

Main Methods:

Cardiac magnetic resonance (CMR) imaging was utilized to evaluate ventricular morphology and function.
The study included 151 subjects: DMD patients with preserved ejection fraction (EF > 55%), DMD patients with reduced EF (EF < 55%), primary LVNC patients, and healthy controls.
The non-compacted to compacted (NC/C) ratio was measured in myocardial segments, with LVNC defined as a diastolic NC/C ratio > 2.3.

Main Results:

The prevalence of LVNC in the DMD population was 28% (27 out of 96 patients).
LVNC was present in 16.7% of DMD patients with EF > 55% and 53.3% of those with EF < 55%.
The median maximum NC/C ratio was significantly higher in DMD patients with reduced EF and primary LVNC patients compared to controls. Longitudinal data showed a mean annual increase in NC/C ratio of +0.36 in DMD boys.

Conclusions:

LVNC is highly prevalent in DMD patients and is associated with declining LV systolic function.
The observed changes in LVNC in DMD may indicate progressive muscular degeneration rather than compensatory cardiac remodeling.
These findings highlight the importance of cardiac monitoring in DMD patients for early detection and management of LVNC.