Muscle Characteristics in Patients with SURF1 Gene Mutations and Leigh Disease
Author Information
Author(s): Pronicki M, Matyja E, Piekutowska-Abramczuk D, Szymańska-Dębińska T, Karkucińska-Więckowska A, Karczmarewicz E, Grajkowska W, Kmieć T, Popowska E, Sykut-Cegielska J
Primary Institution: The Children’s Memorial Health Institute, Warsaw, Poland
Hypothesis
What are the skeletal muscle morphology characteristics in patients with SURF1 mutations associated with Leigh syndrome?
Conclusion
The study found that muscle biopsies from patients with SURF1 mutations consistently showed a diffuse deficit of cytochrome c oxidase, which is a key feature in diagnosing Leigh syndrome.
Supporting Evidence
- All examined muscles showed diffuse decreased activity or total deficit of cytochrome c oxidase.
- Lipid accumulation was found in 14 specimens.
- Ultrastructural assessment revealed several mitochondrial abnormalities.
- Minor muscle changes were not commonly present.
- Five cases showed no ultrastructural changes.
Takeaway
Kids with a specific gene mutation affecting their muscles often show similar problems in their muscle cells, which can help doctors figure out what's wrong.
Methodology
Muscle samples from 21 patients with SURF1 mutations were examined using light and electron microscopy.
Limitations
The study may not capture all possible muscle abnormalities since some patients showed no ultrastructural changes.
Participant Demographics
21 patients from 20 unrelated Polish families, including 11 boys and 10 girls, aged from 9 months to 12 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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