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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Leigh-like syndrome with the T8993G mutation in the mitochondrial ATPase 6 gene: long-term follow-up discloses a slowly progressive course

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Author(s):
Sobreira, Claudia [1] ; Marques, Jr., Wilson [1] ; Neto, Octavio M. Pontes [1] ; Santos, Antonio Carlos [2] ; Neto, Joao M. Pina [3] ; Barreira, Amilton A. [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Neurociencias, Div Neurol, BR-14048900 Ribeirao Preto - Brazil
[2] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Med, Div Radiol, BR-14048900 Ribeirao Preto - Brazil
[3] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Genet, BR-14048900 Ribeirao Preto - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF THE NEUROLOGICAL SCIENCES; v. 278, n. 1-2, p. 132-134, MAR 15 2009.
Web of Science Citations: 5
Abstract

We describe the long-term clinical outcome of a patient with Leigh-like syndrome presenting as an early onset encephalopathy and peripheral neuropathy caused by the T8993G mutation in the mitochondrial DNA (mtDNA). Clinical follow-up for 20 years revealed a peculiar pattern of slow disease progression, characterized by the addition of new minor deficits, while worsening of previous symptoms was mild. Brain MRI revealed cerebellar atrophy, diffuse demyelination of corona radiata and parietal white matter, and bilateral and symmetrical putaminal lesions. The proportion of mutant mtDNAs in blood was 72% (+/- 0.02%) and in skeletal muscle was 81% (+/- 0.4%). Leigh-like syndrome caused by the T8993G mtDNA mutation is a progressive disease, although not necessarily associated with an aggressive clinical course. (C) 2009 Elsevier B.V. All rights reserved. (AU)