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Toxic and nutritional factors trigger Leber hereditary optic neuropathy due to a mitochondrial tRNA mutation

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Leber hereditary optic neuropathy is a mitochondrial disease mainly due to pathologic mutations in mitochondrial genes related to the respiratory complex I of the oxidative phosphorylation system. Genetic, physiological, and… Click to show full abstract

Leber hereditary optic neuropathy is a mitochondrial disease mainly due to pathologic mutations in mitochondrial genes related to the respiratory complex I of the oxidative phosphorylation system. Genetic, physiological, and environmental factors modulate the penetrance of these mutations. We report two patients suffering from this disease and harboring a m.15950G > A mutation in the mitochondrial DNA‐encoded gene for the threonine transfer RNA. We also provide evidences supporting the pathogenicity of this mutation.

Keywords: nutritional factors; optic neuropathy; hereditary optic; toxic nutritional; mutation; leber hereditary

Journal Title: Clinical Genetics
Year Published: 2022

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