Effect of growth hormone administration

Reciprocal changes in serum 1α,25-dihydroxyvitamin D and intestinal calcium absorption

J. J. Chipman, J. Zerwekh, M. Nicar, J. Marks, C. Y. Pak

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

The mechanism by which GH stimulates intestinal calcium absorption was explored. In this study, seven children with idiopathic GH deficiency were studied before and during GH therapy while they were maintained on the same metabolic diet. After 5-14 months of GH administration, fractional intestinal calcium absorption increased from 0.364 ± 0.114 to 0.449 ± 0.159 (P < 0.01) and serum 1,25-dihydroxyvitamin D decreased from 63.7 ± 19.3 to 46.7 ± 17.8 pg/ml (P < 0.025). Serum immunoreactive parathyroid hormone, urinary cAMP, serum 24,25-dihydroxyvitamin D, and 25-hydroxyvitamin D did not change significantly. The data suggest that GH does not directly influence parathyroid hormone or vitamin D metabolism. The possibility that relative intestinal resistance to 1,25-dihydroxyvitamin D exists in patients with GH deficiency is considered.

Original languageEnglish (US)
Pages (from-to)321-324
Number of pages4
JournalJournal of Clinical Endocrinology and Metabolism
Volume51
Issue number2
StatePublished - 1980

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Intestinal Absorption
Parathyroid Hormone
Growth Hormone
Calcium
Dihydroxycholecalciferols
Nutrition
Serum
Metabolism
Vitamin D
Diet
1,25-dihydroxyvitamin D
Therapeutics
25-hydroxyvitamin D

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology, Diabetes and Metabolism

Cite this

Effect of growth hormone administration : Reciprocal changes in serum 1α,25-dihydroxyvitamin D and intestinal calcium absorption. / Chipman, J. J.; Zerwekh, J.; Nicar, M.; Marks, J.; Pak, C. Y.

In: Journal of Clinical Endocrinology and Metabolism, Vol. 51, No. 2, 1980, p. 321-324.

Research output: Contribution to journalArticle

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