## Abstract By using a combination of Southern blot hybridization analysis, polymerase–chain reaction amplification, and direct nucleotide sequencing, we studied deletions of mitochondrial DNA (mtDNA) in several nonfamilial patients with progressive external ophthalmoplegia and Kearns‐Sayre syndrom
Lack of paternal inheritance of muscle mitochondrial DNA in sporadic mitochondrial myopathies
✍ Scribed by Massimiliano Filosto; Michelangelo Mancuso; Cristofol Vives-Bauza; Maya R. Vilà; Sara Shanske; Michio Hirano; Antoni L. Andreu; Salvatore DiMauro
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 49 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0364-5134
No coin nor oath required. For personal study only.
✦ Synopsis
In 2002, paternal inheritance of muscle mitochondrial DNA (mtDNA) was reported in a patient with exercise intolerance and a mitochondrial DNA (mtDNA) mutation restricted to skeletal muscle. To evaluate whether paternal inheritance is a common phenomenon, we studied 10 sporadic patients with skeletal muscle-restricted mtDNA mutations: five harbored mtDNA point mutations in protein-coding genes and five had single mtDNA deletions. We performed haplotype analysis and direct sequencing of the hypervariable regions 1 and 2 of the D-loop in muscle and blood from the patients and, when available, in blood from their parents. We did not observe paternal inheritance in any of our patients.
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