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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
Insufficient growth hormone secretion is associated with metabolic syndrome after allogeneic stem cell transplantation in childhood.
The aim was to evaluate whether the metabolic syndrome associates with other endocrinopathies observed after allogeneic stem cell transplantation (SCT) in childhood.Thirty-one SCT long-term survivors, transplanted for leukemia (n=26) or nonmalignant hematologic diseases (n=5) were evaluated by oral glucose tolerance test and assessment of serum lipids at a median age of 15 (range 7 to 34) years.Hyperinsulinemia, hypertriglyceridemia, and abdominal obesity were required for the diagnosis of metabolic syndrome.Growth hormone (GH) secretion was evaluated either with GH releasing hormone and arginine (n=14), clonidine (n=15), or insulin-tolerance (n=2) test.A GH peak level of <20 mU/L was considered insufficient.The thyroid and gonadal functions were assessed.Twelve patients (39%) had metabolic syndrome.Nine out of 12 (75%) patients with metabolic syndrome had insufficient GH response in provocative testing as opposed to 6/19 (31%) of those without it (P=0.02).No difference was observed in thyroid or gonadal function between patients with versus without metabolic syndrome.In conclusion, metabolic syndrome is frequently associated with insufficient GH secretion in the SCT long-term survivors.This should implicate a close follow-up of the metabolic parameters in SCT patients with either frank GH insufficiency or signs of inadequate GH response in provocative testing.[1]
