CPEO - Like mitochondrial myopathy associated with m.8340G>A mutation.


Journal

Mitochondrion
ISSN: 1872-8278
Titre abrégé: Mitochondrion
Pays: Netherlands
ID NLM: 100968751

Informations de publication

Date de publication:
05 2019
Historique:
received: 14 12 2017
revised: 22 02 2018
accepted: 23 02 2018
pubmed: 5 3 2018
medline: 14 8 2019
entrez: 5 3 2018
Statut: ppublish

Résumé

Two patients with an m.8340G>A mitochondrial DNA variant have been reported with one patient showing ptosis, ophthalmoparesis and myopathy at 53% heteroplasmy and another with pigmentary retinopathy, cataracts and sensory neural deafness and slightly higher heteroplasmy (65%). Here we report that higher muscle mutant heteroplasmy (93%) for m.8340G>A is associated with ptosis, ophthalmoparesis and mitochondrial myopathy, thus confirming the initial phenotypic association and showing that heteroplasmy per se does not explain the phenotypic spectrum of disease associated with the m.8340G>A mutation.

Identifiants

pubmed: 29501485
pii: S1567-7249(17)30331-8
doi: 10.1016/j.mito.2018.02.008
pii:
doi:

Substances chimiques

DNA, Mitochondrial 0

Types de publication

Case Reports Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Pagination

69-72

Informations de copyright

Copyright © 2018 Elsevier B.V. and Mitochondria Research Society. All rights reserved.

Auteurs

Mark A Tarnopolsky (MA)

Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada. Electronic address: tarnopol@mcmaster.ca.

Arun N E Sundaram (ANE)

Department of Ophthalmology and Vision Sciences, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario, Canada.

John Provias (J)

Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada.

Lauren Brady (L)

Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.

Bekim Sadikovic (B)

Molecular Genetics Laboratory, Molecular Diagnostics Division, London Health Sciences Centre, Children's Health Research Institute, London, Ontario, Canada.

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