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Lookup NU author(s): Adillah Binti Yusof,
Dr Julie Murphy,
Dr Gavin Hudson,
Emeritus Professor Doug Turnbull,
Professor Robert Taylor
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Mitochondrial DNA depletion syndromes are a heterogeneous group of childhood neurological disorders characterised by a quantitative abnormality of mitochondrial DNA. We describe two siblings who presented at 8 months and 14 months with myopathy, which rapidly progressed and resulted in death by respiratory failure at age 14 and 18 months, respectively. Muscle biopsy revealed marked respiratory chain defects, with real-time PCR confirming a dramatic depletion of mitochondrial DNA. Sequencing of the thymidine kinase 2 (TK2) gene revealed two, novel heterozygous mutations (p.Q87X and p.N100S) with parental DNA analysis confirming the transmission of mutated alleles. © 2008 Elsevier B.V. All rights reserved.
Author(s): Blakely E, He L, Gardner JL, Hudson G, Walter J, Hughes I, Turnbull DM, Taylor RW
Publication type: Article
Publication status: Published
Journal: Neuromuscular Disorders
ISSN (print): 0960-8966
ISSN (electronic): 1873-2364
Publisher: Elsevier Ltd.
Notes: Co-author JL Gardner now publishes as JL Murphy.
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