Normal growth hormone secretion in overweight young adults with Down syndrome
2010 (English)In: Growth Hormone & IGF Research, ISSN 1096-6374, E-ISSN 1532-2238, Vol. 20, no 2, 174-178 p.Article in journal (Refereed) Published
Down syndrome (DS) is associated with short stature and obesity. Adults with DS have several features in common with growth hormone (GH) deficient adult subjects. The aim of this study was to investigate GH secretion in young adults with DS and its relation to body composition as well as glucose and lipid metabolism. Ten young adults with DS (aged 24-32 years; 5 F) and ten controls matched for age and sex were examined regarding spontaneous nocturnal GH secretion and body composition. Stable isotope tracers were used to study glucose and lipid metabolism in the DS subjects. There was no difference in secretion of GH between the DS subjects and controls. The DS subjects had a higher BMI, fat mass proportion and HOMA (homeostasis model assessment) index compared with the controls. The rates of production of glucose and glycerol (reflecting lipolysis) in the DS subjects were increased (15.5+/-5.07 and 3.5+/-1.68 micromol/kg/min, respectively). The DS subjects showed normal GH secretion despite increased BMI and fat mass. The increased HOMA index and high rate of glucose production indicate peripheral and hepatic insulin resistance in adult DS subjects.
Place, publisher, year, edition, pages
2010. Vol. 20, no 2, 174-178 p.
Down syndrome, Growth hormone, Insulin-like growth factor I, Glucose production, Lipolysis, Metabolism, Body composition, Fat mass
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-123117DOI: 10.1016/j.ghir.2009.11.002ISI: 000277823600014PubMedID: 20022776OAI: oai:DiVA.org:uu-123117DiVA: diva2:312423