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Título

Oxidative stress, thyroid dysfunction & Down syndrome

AutorCampos, Carlos ; Casado Moragón, Ángela
Palabras claveDown syndrome
Oxidative stress
Reactive oxygen species
Thyroid dysfunction
Fecha de publicaciónago-2015
EditorIndian Council of Medical Research
CitaciónIndian J Med Res 142, pp 113-119 ( 2015)
ResumenDown syndrome (DS) is one of the most common chromosomal disorders, occurring in one out of 700-1000 live births, and the most common cause of mental retardation. Thyroid dysfunction is the most typical endocrine abnormality in patients with DS. It is well known that thyroid dysfunction is highly prevalent in children and adults with DS and that both hypothyroidism and hyperthyroidism are more common in patients with DS than in the general population. Increasing evidence has shown that DS individuals are under unusual increased oxidative stress, which may be involved in the higher prevalence and severity of a number of pathologies associated with the syndrome, as well as the accelerated ageing observed in these individuals. The gene for Cu/Zn superoxide dismutase (SOD1) is coded on chromosome 21 and it is overexpressed (~50%) resulting in an increase of reactive oxygen species (ROS) due to overproduction of hydrogen peroxide (H2O2). ROS leads to oxidative damage of DNA, proteins and lipids, therefore, oxidative stress may play an important role in the pathogenesis of DS.
Descripción7 p.
Versión del editorhttp://dx.doi.org/ 10.4103/0971-5916.164218
URIhttp://hdl.handle.net/10261/122252
DOI10.4103/0971-5916.164218
ISSN0971-5916
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