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November 1, 1990Acta Paediatrica

Growth Hormone Secretion in Prader‐Willi Syndrome

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Authors

HCHanan CosteffTel Aviv UniversityVHVanja A. HolmMadigan Army Medical CenterRRRogelio H.A. RuvalcabaMadigan Army Medical Center

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Implication

Observational study demonstrates severe growth hormone deficiency in children with Prader-Willi syndrome, indicating growth failure occurs independently of obesity.

Key Points

  • To determine whether short stature in children with Prader-Willi syndrome is driven by true growth hormone deficiency rather than obesity-induced endocrine suppression.
  • Evaluated integrated 12-hour nocturnal growth hormone secretion and peak growth hormone responses to clonidine provocation in six growth-retarded children with Prader-Willi syndrome (five with a 15q- karyotype; one obese).
  • Measured circulating levels of somatomedin-C, thyroxine (T-4), and thyroid-stimulating hormone (TSH) across all subjects.
  • All six subjects exhibited markedly suppressed growth hormone secretion, with nocturnal peaks below 10 μg/L, mean nocturnal concentrations below 1.8 μg/L, and clonidine-stimulated peaks below 8 μg/L.
  • Thyroid function remained largely intact, evidenced by normal TSH levels in all six children and normal T-4 levels in five children.

Cite This Study

Costeff et al. (1990) studied this question.

synapsesocial.com/papers/6a938f99c71ca0043637ce2chttps://doi.org/10.1111/j.1651-2227.1990.tb11383.x
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Anterior Pituitary Function in the Prader-Labhart-Willi (PLW) Syndrome1974 · 54 citations
  2. 2Variable Estimates of Serum Growth Hormone Concentrations by Different Radioassay Systems1988 · 117 citations
  3. 3Growth Hormone (GH) Provocative Testing Frequently Does Not Reflect Endogenous GH Secretion*1986 · 228 citations
  4. 4Endocrinological Abnormalities in Prader-Willi Syndrome1981 · 11 citations