Clinical and neuropathological findings in patients with TACO1 mutations
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- 作者：Jü ; rgen Seeger ; Bertold Schrank ; Angela Pyle ; Rolf Stucka ; Ulrich Lö ; rcher ; Solvig Mü ; ller-Ziermann ; Angela Abicht ; Birgit Czermin ; Elke Holinski-Feder ; Hanns Lochmü ; ller ; Rita Horvath
- 关键词：Leigh syndrome ; Cytochrome c oxidase ; Translation ; TACO1
- 刊名：Neuromuscular Disorders
- 出版年：2010
- 出版时间：November 2010
- 年：2010
- 卷：20
- 期：11
- 页码：720-724
- 全文大小：467 K
文摘
We have recently identified mutations in the translation activator of cytochrome c oxidase 1 (TACO1) gene, leading to cytochrome c oxidase (COX) deficiency. Here, we report the clinical and neuroimaging findings of five members of a big consanguinous family homozygous for c.472insC in TACO1. All 5 patients had an uneventful early childhood and a subtle onset, slowly progressive cognitive dysfunction, dystonia or visual impairment between ages 4 and 16 years. Affected girls had a milder phenotype and preserved ambulation into the late twenties. Brain MRI revealed bilateral, symmetric lesions of the basal ganglia in all affected family members, but less prominent in girls. TACO1 analysis showed no mutations in 17 patients with juvenile-onset Leigh syndrome and isolated COX or combined respiratory chain deficiency, indicating that TACO1 mutations are a rare cause of Leigh syndrome.