Article
Novel genetic and neuropathological insights in neurogenic muscle weakness, ataxia, and retinitis pigmentosa (NARP).
Muscle & nerve - 1 Aug 2016
Claeys Kristl G, Abicht Angela, Häusler Martin, Kleinle Stephanie, Wiesmann Martin, Schulz Jörg B, Horvath Rita, Weis Joachim
Abstract excerpt
INTRODUCTION: Neurogenic muscle weakness, ataxia, and retinitis pigmentosa (NARP) is caused by m.8993T>G/C mutations in the mitochondrial adenosine triphosphate synthase subunit 6 gene (MT-ATP6). Traditionally, heteroplasmy levels between 70% and 90% lead to NARP, and >90% result in Leigh syndrome. METHODS: In this study we report a 30-year-old man with NARP and m.8993T>G in MT-ATP6. RESULTS: Although the patient...
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