Cited by 84Regulation of Appetite and ObesityGrowth Hormone and Insulin-like Growth FactorsHypothalamic control of reproductive hormones

Role of endogenous ghrelin in growth hormone secretion, appetite regulation and metabolism

Dimaraki, Eleni V., Jaffe, Craig A.·2007·Reviews in Endocrine and Metabolic Disorders

Abstract

Ghrelin, a 28-amino acid hormone that is acylated post-translation, is the endogenous ligand for the growth hormone (GH) secretagogue (GHS) receptor (GHS-R). The highest concentrations of ghrelin are found in the stomach; however ghrelin peptide is also present in hypothalamic nuclei known to be important in the control of GH and feeding behavior. Exogenous ghrelin potently stimulates pituitary GH release through a mechanism that is dependent, in part, on endogenous GH-releasing hormone. Whether endogenous ghrelin plays a role in the control of GH secretion and growth is not clear and ghrelin deficient animals appear to grow normally. In contrast, experimental animal and clinical data suggest that abnormalities in GHS-R signaling could impact growth. Ghrelin or other GHS are clinically useful for GH-testing and limited data suggest that they might be useful in the treatment of some patients with GH deficiency. Substantial data have implicated ghrelin as an important regulator of feeding behavior and energy equilibrium. Ghrelin has a potent orexigenic effect in both animals and humans and this effect is mediated through hypothalamic neuropeptide Y (NPY) and Agouti-related peptide (AgRP). Appetite simulation coupled with other metabolic effects promotes weight gain during chronic treatment with ghrelin. These metabolic effects are in part mediated through an increase in respiratory quotient (VQ). Presence of ghrelin appears to be necessary for the development of obesity in some animal models. Whether abnormalities in ghrelin signaling are involved in human obesity is not yet known.

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Crossref · 10.1007/s11154-006-9022-0

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155 of 155 references verified0 citation errors · 0 not checkable

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  • A large body of evidence supports the hypothesis that ghrelin acts on growth hormone secretion, at least in part, via stimulation of GHRH.

    “A large body of evidence supports the hypothesis that ghrelin acts on GH secretion, at least in part, via a stimulation of GHRH [39, 50, 192]”

    From Sleep and metabolic function (2012) · cites this paper as [39]

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Authors
Dimaraki, E. V., & Jaffe, C. A.
Affiliations
  • Northwestern University (US)
  • University of Michigan (US)
Corresponding author
Jaffe, Craig A.
Venue
Reviews in Endocrine and Metabolic Disorders
Published
2006-12-30
Volume
7
Issue
4
Pages
237-249
ISSN
  • 1389-9155 (ISSN-L)
  • 1573-2606
OpenAlex
W2066235478
Cited by
84
References
155
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 7 · 2018: 5 · 2017: 3 · 2016: 5 · 2015: 2 · 2014: 3 · 2013: 1 · 2012: 6
FWCI
2.17
Type
journal article
Language
en
Open access
closed
Locations
  • Reviews in Endocrine and Metabolic Disorders (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
ghrelin, growth hormone secretion, growth hormone secretagogue receptor, appetite regulation, feeding behavior, energy homeostasis, neuropeptide Y, agouti-related protein, hypothalamus, GH deficiency, obesity, respiratory quotient
MeSH terms
Animals, Appetite Regulation, Energy Metabolism, Humans, Models, Biological, Neuropeptide Y, Peptide Fragments, Growth Hormone, Peptide Hormones, Agouti-Related Protein, Ghrelin

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