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A case of late-onset MELAS
K G Kimata1, L Gordan, E T Ajax
1Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City 52242-1053, USA.
Archives of Neurology
|May 30, 1998
Summary
This case study highlights MELAS syndrome (mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes) in a 60-year-old man. The findings emphasize considering MELAS at any age with the mitochondrial DNA 3243 point mutation.
Area of Science:
- Neurology
- Genetics
- Mitochondrial Diseases
Background:
- MELAS syndrome is a maternally inherited mitochondrial disorder.
- Characterized by stroke-like episodes, encephalopathy, and myopathy.
- Often associated with specific mitochondrial DNA (mtDNA) mutations.
Observation:
- A 60-year-old male patient presented with symptoms consistent with MELAS syndrome.
- The patient's condition was linked to the common mitochondrial DNA point mutation 3243.
Findings:
- The case illustrates the variability in age of onset for MELAS syndrome.
- Confirms the association between the 3243 mtDNA mutation and clinical MELAS presentation.
- Highlights the importance of clinical suspicion for MELAS.
Implications:
- MELAS syndrome diagnosis should be considered across all age groups when clinically indicated.
- Understanding the genetic basis (mtDNA 3243 mutation) aids in diagnosis and genetic counseling.
- This case broadens the typical age demographic for MELAS syndrome recognition.