Diagnosis of mitochondrial disorders by concomitant next-generation sequencing of the exome and mitochondrial genome.
Genomics
; 102(3): 148-56, 2013 Sep.
Article
en En
| MEDLINE
| ID: mdl-23631824
ABSTRACT
Mitochondrial diseases are notoriously difficult to diagnose due to extreme locus and allelic heterogeneity, with both nuclear and mitochondrial genomes potentially liable. Using exome sequencing we demonstrate the ability to rapidly and cost effectively evaluate both the nuclear and mitochondrial genomes to obtain a molecular diagnosis for four patients with three distinct mitochondrial disorders. One patient was found to have Leigh syndrome due to a mutation in MT-ATP6, two affected siblings were discovered to be compound heterozygous for mutations in the NDUFV1 gene, which causes mitochondrial complex I deficiency, and one patient was found to have coenzyme Q10 deficiency due to compound heterozygous mutations in COQ2. In all cases conventional diagnostic testing failed to identify a molecular diagnosis. We suggest that additional studies should be conducted to evaluate exome sequencing as a primary diagnostic test for mitochondrial diseases, including those due to mtDNA mutations.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Análisis de Secuencia de ARN
/
Enfermedades Mitocondriales
/
Genoma Mitocondrial
/
Exoma
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Newborn
Idioma:
En
Revista:
Genomics
Asunto de la revista:
GENETICA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Estados Unidos