Leber's hereditary optic neuropathy (LHON) is characterized by acute or subacute bilateral (usually permanent) loss of central vision, caused by neuroretinal degeneration. The maternal inheritance is explained by the mitochondrial origin of the disease. Recently, a single mitochondrial DNA (mtDNA) m
High frequency of mutations at position 11778 in mitochondrial ND4 gene in Japanese families with Leber's hereditary optic neuropathy
โ Scribed by Yukihiko Mashima; Yoshiki Hiida; Yoshihisa Oguchi; Jun Kudoh; Nobuyoshi Shimizu
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 127 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0340-6717
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โฆ Synopsis
We have investigated the presence of a point mutation at position 11778 in the ND4 gene of mitochondrial DNA in 17 Japanese families with Leber's hereditary optic neuropathy (LHON), and have identified the mutation in 14 (82.4%) of the 17 families. The prevalence of this mutation appears to be much higher in Japanese patients with LHON than in patients of other ethnic origins, such as Finnish, Dutch, German, and English families.
๐ SIMILAR VOLUMES
Leber hereditary optic neuropathy (LHON) is a maternally inherited eye disease most commonly caused by mitochondrial DNA (mtDNA) point mutation at position 11778, 3460, or 14484. Approximately 14% of families show heteroplasmy for the pathogenic mutations but little is known about the mutational bur