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Changes in growth hormone-binding protein in girls with central precocious puberty treated with a depot preparation of luteinizing hormone-releasing hormone analogue.

Abstract
Growth hormone-binding protein (GHBP) was studied in 11 girls with true precocious puberty, aged 7.3 +/- 0.2 years (mean +/- SE), before and after the first 6 months of treatment with luteinizing hormone-releasing hormone analogue D-Trp6-LHRH. The 125I-human GH was incubated with 150 microliters of serum, bound and free GH were separated by gel filtration. The levels of GHBP increased significantly from 24.2 +/- 1.3 to 28.1 +/- 1.9% (p < 0.002, paired t test), more than expected for the normal age-dependent increase. The efficiency of LHRH-A therapy was confirmed by a decrease in growth rate and normalization of clinical and biological parameters. Our data agree with the hypothesis that the pubertal spurt is mediated by a sex-steroid-induced rise in GH concentration, and they suggest that the levels of GHBP may be related to the GH secretion and its variation with treatment.
AuthorsS B Oliveira, M Donnadieu, J L Chaussain
JournalHormone research (Horm Res) Vol. 39 Issue 1-2 Pg. 42-6 ( 1993) ISSN: 0301-0163 [Print] Switzerland
PMID8406338 (Publication Type: Journal Article)
Chemical References
  • Carrier Proteins
  • Delayed-Action Preparations
  • Triptorelin Pamoate
  • Luteinizing Hormone
  • Follicle Stimulating Hormone
  • Growth Hormone
  • somatotropin-binding protein
Topics
  • Carrier Proteins (blood)
  • Child
  • Delayed-Action Preparations
  • Female
  • Follicle Stimulating Hormone (blood)
  • Growth (drug effects)
  • Growth Hormone (blood)
  • Humans
  • Luteinizing Hormone (blood)
  • Puberty, Precocious (blood, drug therapy, pathology)
  • Triptorelin Pamoate (administration & dosage, therapeutic use)

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