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Related Experiment Videos

White matter involvement in mitochondrial diseases.

Tally Lerman-Sagie1, Esther Leshinsky-Silver, Nathan Watemberg

  • 1The Mitochondrial Disease Clinic, Metabolic-Neurogenetic Service, Wolfson Medical Center, Pediatric Neurology Unit, Holon, Israel. asagie@post.tau.ac.il

Molecular Genetics and Metabolism
|January 27, 2005
PubMed
Summary

White matter abnormalities are common in mitochondrial disorders, affecting both brain and cerebellum. Prompt mitochondrial evaluation is crucial for complex neurological cases with multisystem involvement.

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Area of Science:

  • Neurology
  • Genetics
  • Radiology

Background:

  • White matter involvement is increasingly recognized in mitochondrial disorders.
  • It is a key feature of classical mitochondrial syndromes linked to mitochondrial DNA alterations.
  • Autosomal disorders involving nuclear DNA mutations also manifest white matter changes.

Purpose of the Study:

  • To highlight the significance of white matter involvement in mitochondrial diseases.
  • To outline characteristic MRI findings suggestive of mitochondrial disorders.
  • To emphasize the need for mitochondrial evaluation in specific clinical contexts.

Main Methods:

  • Review of literature on white matter involvement in mitochondrial disorders.
  • Analysis of characteristic Magnetic Resonance Imaging (MRI) findings.

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  • Correlation of clinical presentation with neuroimaging findings.

    • Main Results:

    • Common MRI findings include leukoencephalopathy, cyst-like lesions, and basal ganglia involvement.
    • White matter lesions can be disproportionate to clinical symptoms.
    • Multisystem involvement and early-onset neurodegeneration are frequent.

    Conclusions:

    • White matter abnormalities are a hallmark of many mitochondrial diseases.
    • Specific MRI patterns can suggest a mitochondrial etiology.
    • Leukoencephalopathy with complex neurological and systemic symptoms warrants comprehensive mitochondrial investigation.