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Updated: Oct 12, 2025

Single Myofiber Isolation and Culture from a Murine Model of Emery-Dreifuss Muscular Dystrophy in Early Post-Natal Development
08:07

Single Myofiber Isolation and Culture from a Murine Model of Emery-Dreifuss Muscular Dystrophy in Early Post-Natal Development

Published on: July 1, 2020

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Emery-Dreifuss muscular dystrophy with dilated cardiomyopathy preceding skeletal muscle symptoms

Koichi Takamizawa1, Ki-Sung Kim1, Hideaki Ueda1

  • 1Department of Cardiology, Kanagawa Children's Medical Center, Yokohama, Japan.

Cardiology in the Young
|November 25, 2021
PubMed

Insights

Emery-Dreifuss muscular dystrophy, a progressive muscle and joint disorder, can present with cardiac issues like dilated cardiomyopathy. Genetic testing for LMNA mutations is key, especially when muscle weakness is minimal.

Area of Science:

  • Cardiology
  • Genetics
  • Neurology

Background:

  • Emery-Dreifuss muscular dystrophy (EDMD) is a rare genetic disorder characterized by progressive muscle and joint contractures.
  • Cardiac complications, including dilated cardiomyopathy and arrhythmias, are significant features of EDMD.
  • Diagnosis can be challenging due to slowly progressive skeletal muscle weakness.

Observation:

  • A case study of an 8-year-old girl with Emery-Dreifuss muscular dystrophy is presented.
  • Dilated cardiomyopathy was the initial clinical manifestation in this patient.
  • Muscle and myocardial biopsies showed normal results, complicating initial diagnosis.

Findings:

  • Genetic testing identified mutations in the LMNA gene.
  • LMNA mutations are a known cause of EDMD and related cardiomyopathies.
  • This case highlights the importance of genetic analysis in diagnosing EDMD.

Implications:

  • Cardiac manifestations can be the primary presenting symptom of EDMD.
  • Early diagnosis of EDMD through genetic testing is crucial for managing cardiac risks.
  • This case underscores the utility of genetic testing in identifying EDMD, even with subtle muscular symptoms.

Keywords:
Dilated cardiomyopathyEmery-Dreifuss muscular dystrophyLMNA

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