The significance of reduced respiratory chain enzyme activities: clinical, biochemical and radiological associations.
Eur J Paediatr Neurol
; 10(2): 78-82, 2006 Mar.
Article
en En
| MEDLINE
| ID: mdl-16567117
ABSTRACT
BACKGROUND:
Mitochondrial diseases are an important group of neurometabolic disorders in children with varied clinical presentations and diagnosis that can be difficult to confirm.AIM:
To report the significance of reduced respiratory chain enzyme (RCE) activity in muscle biopsy samples from children.METHODS:
Retrospective odds ratio was used to compare clinical and biochemical features, DNA studies, neuroimaging, and muscle biopsies in 18 children with and 48 without reduced RCE activity.RESULTS:
Children with reduced RCE activity were significantly more likely to have consanguineous parents, to present with acute encephalopathy and lactic acidaemia and/or within the first year of life; to have an axonal neuropathy, CSF lactate >4 mmol/l; and/or to have signal change in the basal ganglia. There were positive associations with a maternal family history of possible mitochondrial cytopathy; a presentation with failure to thrive and lactic acidaemia, ragged red fibres, reduced fibroblast fatty acid oxidation and with an abnormal allopurinol loading test. There was no association with ophthalmic abnormalities, deafness, epilepsy or myopathy.CONCLUSION:
The association of these clinical, biochemical and radiological features with reduced RCE activity suggests a possible causative link.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades Mitocondriales
/
Proteínas del Complejo de Cadena de Transporte de Electrón
/
Músculos
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Revista:
Eur J Paediatr Neurol
Asunto de la revista:
NEUROLOGIA
/
PEDIATRIA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Reino Unido