Normal control of growth hormone secretion

M. L. Hartman, Johannes D Veldhuis, M. O. Thorner

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Growth hormone (GH) is secreted by the anterior pituitary gland in a pulsatile fashion under the regulation of two hypothalamic peptides: GH-releasing hormone (GHRH) stimulates GH synthesis and secretion while somatostatin inhibits GH release. Studies in rats, sheep and humans indicate that whereas GHRH is required for the initiation of GH pulses, the amplitude of GH pulses is modulated by somatostatin. In humans, these interactions result in a pattern of volleys of GH-secretory pulses with intervening periods of relative secretory quiescence. The amplitude and frequency of GH-secretory pulses are regulated by a complex array of external and internal stimuli including age, gender, menstrual cycle phase, pubertal status, nutrition, sleep, body composition and exercise. Changes in plasma concentrations of gonadal hormones, insulin and insulin-like growth factor-I likely mediate the effects of several of these factors. A greater understanding of the physiology of GH secretion will enable the development of future strategies to enhance GH secretion in GH-deficient states including the use of GH secretagogues and modification of nutrition and exercise habits.

Original languageEnglish (US)
Pages (from-to)37-47
Number of pages11
JournalHormone Research
Volume40
Issue number1-3
StatePublished - 1993
Externally publishedYes

Fingerprint

Growth Hormone
Somatostatin
Hypothalamic Hormones
Gonadal Hormones
Growth Hormone-Releasing Hormone
Anterior Pituitary Gland
Peptide Hormones
Menstrual Cycle
Body Composition
Nutritional Status
Insulin-Like Growth Factor I
Habits
Sheep
Sleep
Hormones
Insulin

Keywords

  • Aging
  • Body composition
  • Deconvolution
  • Exercise
  • Gender
  • Gonadal steroids
  • Growth hormone
  • Insulin-like growth factor-I
  • Nutrition
  • Sleep

ASJC Scopus subject areas

  • Endocrinology

Cite this

Hartman, M. L., Veldhuis, J. D., & Thorner, M. O. (1993). Normal control of growth hormone secretion. Hormone Research, 40(1-3), 37-47.

Normal control of growth hormone secretion. / Hartman, M. L.; Veldhuis, Johannes D; Thorner, M. O.

In: Hormone Research, Vol. 40, No. 1-3, 1993, p. 37-47.

Research output: Contribution to journalArticle

Hartman, ML, Veldhuis, JD & Thorner, MO 1993, 'Normal control of growth hormone secretion', Hormone Research, vol. 40, no. 1-3, pp. 37-47.
Hartman ML, Veldhuis JD, Thorner MO. Normal control of growth hormone secretion. Hormone Research. 1993;40(1-3):37-47.
Hartman, M. L. ; Veldhuis, Johannes D ; Thorner, M. O. / Normal control of growth hormone secretion. In: Hormone Research. 1993 ; Vol. 40, No. 1-3. pp. 37-47.
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