Nocturnal urinary growth hormone excretion in children with short stature

in European Journal of Endocrinology
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Abstract. Nocturnal urinary growth hormone levels in children with short and normal stature were measured by a sensitive enzyme immunoassay. Urinary GH excretion during sleep correlated positively with peak plasma GH values during pharmacological (r = 0.74, P < 0.001) and sleep (r = 0.85, P < 0.001) tests. The amounts of urinary GH excretion during sleep differed significantly from each other in the following groups: complete GH deficiency (mean ± sem: 0.1 ± 0.1 ng/m2 of body surface area; range: < 0.1–0.4), partial GH deficiency (1.6 ± 0.3 ng/m2; 0.2–3.1), and short stature without GH deficiency (3.7 ± 0.6 ng/m2; 0.7–11.5). No significant difference was found between short stature without GH deficiency and normal stature (5.0 ± 0.5 ng/m2; 2.1 – 10.5). Measurement of nocturnal urinary GH excretion is a simple method for screening of GH excretion and may be helpful in the differentiation of the various etiologies of short stature in children.


     European Society of Endocrinology

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