Coenzyme Q10 (ubiquinol-10) supplementation improves oxidative imbalance in children with trisomy 21.
Pediatr Neurol
; 37(6): 398-403, 2007 Dec.
Article
em En
| MEDLINE
| ID: mdl-18021919
Endogenous coenzyme Q10 is an essential cofactor in the mitochondrial respiratory chain, a potent antioxidant, and a potential biomarker for systemic oxidative status. Evidence of oxidative stress was reported in individuals with trisomy 21. In this study, 14 children with trisomy 21 had significantly increased (P < 0.0001) plasma ubiquinone-10 (the oxidized component of coenzyme Q10) compared with 12 age- and sex-matched healthy children (historical controls). Also, the mean ratio of ubiquinol-10 (the biochemically reduced component):total coenzyme Q10 was significantly decreased (P < 0.0001). After 3 months of ubiquinol-10 supplementation (10 mg/kg/day) to 10 patients with trisomy 21, the mean ubiquinol-10:total coenzyme Q10 ratio increased significantly (P < 0.0001) above baseline values, and 80% of individual ratios were within normal range. No significant or unexpected adverse effects were reported by participants. To our knowledge, this is the first study to indicate that the pro-oxidant state in plasma of children with trisomy 21, as assessed by ubiquinol-10:total coenzyme Q10 ratio, may be normalized with ubiquinol-10 supplementation. Further studies are needed to determine whether correction of this oxidant imbalance improves clinical outcomes of children with trisomy 21.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxirredução
/
Vitaminas
/
Ubiquinona
/
Síndrome de Down
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Pediatr Neurol
Assunto da revista:
NEUROLOGIA
/
PEDIATRIA
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Estados Unidos