Related Experiment Video

Updated: Sep 12, 2025

Visualization of Mitochondrial Respiratory Function using Cytochrome C Oxidase / Succinate Dehydrogenase COX/SDH Double-labeling Histochemistry
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Updates on Mitochondrial Myopathies

Emanuele Barca1, Valentina Emmanuele2

  • 1Department of Neurology, Columbia University Medical Center, New York, USA. eb2877@cumc.columbia.edu.

Current Neurology and Neuroscience Reports
|August 5, 2025
PubMed
Abstract

Insights

Mitochondrial myopathies (MM) are underrecognized genetic disorders. This review offers diagnostic and management guidance, highlighting new tools and therapies for improved patient outcomes.

Area of Science:

  • Neurology
  • Genetics
  • Mitochondrial Biology

Background:

  • Mitochondrial myopathies (MM) represent a diverse group of genetic disorders.
  • These conditions are often underdiagnosed in both pediatric and adult neurology settings.

Purpose of the Study:

  • To provide a practical clinical guide for diagnosing and managing mitochondrial myopathies.
  • To review advancements in diagnostic technologies and disease-modifying treatments for MM.

Main Methods:

  • Review of large cohort data to identify key clinical subtypes.
  • Analysis of novel diagnostic tools including GDF-15 and advanced sequencing.
  • Evaluation of emerging therapeutic strategies and preclinical developments.

Main Results:

  • Key MM subtypes (fixed, syndromic, metabolic) have distinct diagnostic implications.
  • New tools like GDF-15 and long-read mtDNA sequencing improve diagnostic accuracy.
  • Promising therapies for TK2 deficiency and gene editing are advancing rapidly.

Conclusions:

  • Early recognition of MM is crucial for timely diagnosis, prognosis, and family planning.
  • A tiered diagnostic approach integrating genomic technologies enhances patient outcomes.
  • Emerging treatments offer hope for patients with these severe disorders.
Keywords:
Exercise intoleranceMitochondrial myopathyMuscle biopsyNext-generation sequencingRhabdomyolysisTK2 deficiency

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