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Lookup NU author(s): Dr Gavin Hudson,
Dr Patrick Yu Wai Man,
Professor Rita HorvathORCiD,
Professor Patrick Chinnery
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Leber's hereditary optic neuropathy (LHON) is a common cause of inherited blindness, primarily due to one of three mitochondrial DNA (mtDNA) mutations. LHON, which has an unexplained variable penetrance and pathology, is characterised by disruption of the mitochondrial respiratory chain ultimately resulting in degeneration of the retinal ganglion cells. Phosphorylation of the tau protein is known to cause neurodegeneration and variation in MAPT has been associated with a range of neurodegenerative disorders. Given the relationship between MAPT variation and altered mitochondrial respiratory chain function, we hypothesised that MAPT variation could contribute to the risk of blindness in LHON mtDNA mutation carriers. We studied MAPT variation in a large, well characterised LHON cohort, but were unable to find an association between MAPT genetic variation and visual failure in LHON mtDNA mutation carriers. Our findings suggest that genetic variation in MAPT is unlikely to make a major contribution to the risk of blindness among LHON mutation carriers. (C) 2011 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
Author(s): Hudson G, Yu-Wai-Man P, Griffiths PG, Horvath R, Carelli V, Zeviani M, Chinnery PF
Publication type: Article
Publication status: Published
Print publication date: 10/03/2011
ISSN (print): 1567-7249
ISSN (electronic): 1872-8278
Publisher: Elsevier BV
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