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Title: Recessive POLG mutations presenting with sensory and ataxic neuropathy in compound heterozygote patients with progressive external ophthalmoplegia
Authors: Van Goethem, G
Martin, JJ
Dermaut, Bart
Lofgren, A
Wibail, A
Ververken, D
Tack, P
Dehaene, Idesbald
Van Zandijcke, M
Moonen, M
Ceuterick, C
De Jonghe, P
Van Broeckhoven, C #
Issue Date: Feb-2003
Publisher: Pergamon-elsevier science ltd
Series Title: Neuromuscular disorders vol:13 issue:2 pages:133-142
Abstract: Autosomal recessive progressive external ophthalmoplegia is a mitochondrial disease characterized by accumulation of multiple large-scale deletions of mitochondrial DNA. We previously reported missense mutations in POLG, the gene encoding the mitochondrial DNA polymerase gamma in two nuclear families compatible with autosomal recessive progressive external ophthalmoplegia. Here, we report a novel POLG missense mutation (R627W) in a sporadic patient and we provide genetic support that all these POLG mutations are actually causal and recessive. The novel patient presented with sensory ataxic neuropathy and has the clinical triad of sensory ataxic neuropathy, dysarthria and ophthalmoparesis (SANDO). This is the first finding of a genetic cause of Sensory Ataxic Neuropathy, Dysarthria and Ophthalmoparesis and it implies that this disorder may actually be a variant of autosomal recessive progressive external ophthalmoplegia. Sensory neuropathy is the initial feature in Belgian compound heterozygote autosomal recessive progressive external ophthalmoplegia patients, all carrying the POLG A467T mutation, which occurs at a frequency of 0.6% in the Belgian population. (C) 2002 Elsevier Science B.V. All rights reserved.
ISSN: 0960-8966
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Faculty of Medicine - miscellaneous
Faculty of Engineering Science - miscellaneous
# (joint) last author

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