Respiratory chain deficiency in nonmitochondrial disease

OBJECTIVE: In this study, we report 5 patients with heterogeneous phenotypes and biochemical evidence of respiratory chain (RC) deficiency; however, the molecular diagnosis is not mitochondrial disease. METHODS: The reported patients were identified from a cohort of 60 patients in whom RC enzyme def...

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Detalles Bibliográficos
Autores principales: Pyle, Angela, Nightingale, Helen J., Griffin, Helen, Abicht, Angela, Kirschner, Janbernd, Baric, Ivo, Cuk, Mario, Douroudis, Konstantinos, Feder, Lea, Kratz, Markus, Czermin, Birgit, Kleinle, Stephanie, Santibanez-Koref, Mauro, Karcagi, Veronika, Holinski-Feder, Elke, Chinnery, Patrick F., Horvath, Rita
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4821083/
https://www.ncbi.nlm.nih.gov/pubmed/27066545
http://dx.doi.org/10.1212/NXG.0000000000000006
Descripción
Sumario:OBJECTIVE: In this study, we report 5 patients with heterogeneous phenotypes and biochemical evidence of respiratory chain (RC) deficiency; however, the molecular diagnosis is not mitochondrial disease. METHODS: The reported patients were identified from a cohort of 60 patients in whom RC enzyme deficiency suggested mitochondrial disease and underwent whole-exome sequencing. RESULTS: Five patients had disease-causing variants in nonmitochondrial disease genes ORAI1, CAPN3, COLQ, EXOSC8, and ANO10, which would have been missed on targeted next-generation panels or on MitoExome analysis. CONCLUSIONS: Our data demonstrate that RC abnormalities may be secondary to various cellular processes, including calcium metabolism, neuromuscular transmission, and abnormal messenger RNA degradation.

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