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Journal of Clinical Endocrinology & Metabolism, Vol 63, 680-682, Copyright © 1986 by Endocrine Society

ARTICLES

Relationship of plasma growth hormone-releasing hormone levels to pubertal changes

J Argente, D Evain-Brion, A Munoz-Villa, P Garnier, M Hernandez and M Donnadieu

Basal plasma GH-releasing hormone (GHRH) concentrations were measured by RIA in 180 normal subjects (93 boys and 87 girls between the ages of 8 and 18 yr). Every subject was in good health and between -2 and +2 SD for height. Fourteen boys with delayed puberty also were studied. Plasma GHRH concentrations were higher during puberty than before it. At midpuberty, the mean GHRH levels in girls was 159.1 +/- 28.5 (+/- SEM) pg/ml, approximately 5-fold higher than the level in prepubertal girls (30.3 +/- 4.3 pg/ml). The mean plasma GHRH in midpubertal boys (101.4 +/- 11.5 pg/ml) was approximately 2-fold higher than the level in prepubertal boys (48.1 +/- 5.2 pg/ml). The GHRH levels in boys with delayed puberty more closely resembled those in boys at a similar pubertal stage than those in boys of similar chronological age. The dramatic rise in plasma GHRH levels during puberty suggests a role for this peptide in the adolescent growth spurt. Moreover, these data indicate that GHRH levels during adolescence may be a marker of the patient's pubertal development.


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E. E. Muller, V. Locatelli, and D. Cocchi
Neuroendocrine Control of Growth Hormone Secretion
Physiol Rev, April 1, 1999; 79(2): 511 - 607.
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