کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1998731 | 1065819 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Different laboratory and muscle biopsy findings in a family with an m.8851T > C mutation in the mitochondrial MTATP6 gene ★★★ Different laboratory and muscle biopsy findings in a family with an m.8851T > C mutation in the mitochondrial MTATP6 gene ★★★](/preview/png/1998731.png)
We report the second known family with a very rare, maternally inherited missense m.8851T > C mutation in the mitochondrial MTATP6 gene. A failure to thrive, microcephaly, psychomotor retardation and hypotonia were present in a 3-year-old girl with a high mtDNA mutation load (87–97%). Ataxia and Leigh syndrome were subsequently documented in a neurological examination and brain MRI. A muscle biopsy demonstrated decreased ATP synthase and an accumulation of succinate dehydrogenase products, indicating mitochondrial myopathy. Her 36-year-old mother (68% blood heteroplasmy) developed peripheral neuropathy and muscle weakness at the age of 22 years. Our findings extend the clinical and laboratory phenotype associated with the m.8851T > C mutation.
► We report on the second known family with m.8851T > C missense MTATP6 mutation.
► We observed novel laboratory and muscle biopsy findings in the patient.
► We described motor-predominant axonal neuropathy in patient mother with lower mutation load.
► Our findings extend the clinical and laboratory phenotype associated with this mtDNA mutation.
Journal: Molecular Genetics and Metabolism - Volume 108, Issue 1, January 2013, Pages 102–105