Ghrelin's Full Range: From GH Release to Appetite, Heart Protection, and Immune Modulation
Ghrelin's expanding list of endocrine (GH, prolactin, cortisol) and non-endocrine (appetite, adiposity, cardiovascular protection, immune modulation) actions makes it one of the most versatile peptide hormones known.
Quick Facts
What This Study Found
Ghrelin's comprehensive activity profile includes GH/prolactin/cortisol release, appetite stimulation, adiposity, cardiovascular protection, and immune modulation, with multi-tissue production supporting both endocrine and local paracrine functions.
Key Numbers
How They Did This
Comprehensive review integrating all published ghrelin endocrine, metabolic, cardiovascular, and immunological activities with tissue distribution data.
Why This Research Matters
The most complete ghrelin activity overview available at the time, essential for understanding the full scope of what ghrelin-targeting drugs will affect.
The Bigger Picture
Ghrelin's breadth of actions rivals that of any known peptide hormone. Its multi-tissue production and multi-system effects make it a truly integrated physiological coordinator.
What This Study Doesn't Tell Us
Review from 2003. Some proposed activities were still being characterized. The relative importance of each activity for clinical applications was debated.
Questions This Raises
- ?Which activity dominates ghrelin's overall physiological role?
- ?Can different activities be therapeutically separated?
- ?How do ghrelin's immune effects interact with its metabolic ones?
Trust & Context
- Key Stat:
- 7+ tissues, 5+ functions Ghrelin is produced in stomach, bowel, pancreas, kidney, immune system, pituitary, and hypothalamus with at least 5 major functional categories
- Evidence Grade:
- Moderate evidence from the most comprehensive ghrelin activity review available at the time of publication.
- Study Age:
- Published in 2003. All activities described have been extensively validated in the following two decades.
- Original Title:
- Endocrine and non-endocrine actions of ghrelin.
- Published In:
- Hormone research, 59(3), 109-17 (2003)
- Authors:
- Broglio, Fabio(8), Gottero, Cristina(2), Arvat, Emanuela(5), Ghigo, Ezio
- Database ID:
- RPEP-00799
Evidence Hierarchy
Summarizes existing research on a topic.
What do these levels mean? →Frequently Asked Questions
What's the full list of ghrelin's effects?
GH release, prolactin release, cortisol increase, appetite stimulation, fat promotion, heart protection, immune cell modulation, and gastric motility regulation — all from one peptide hormone.
Why does one hormone do so many things?
Ghrelin coordinates the body's response to nutritional status. When you need to eat (ghrelin high), you also need more GH for tissue maintenance, immune readiness for food-borne pathogens, and gastric readiness for digestion — ghrelin prepares all systems simultaneously.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-00799APA
Broglio, Fabio; Gottero, Cristina; Arvat, Emanuela; Ghigo, Ezio. (2003). Endocrine and non-endocrine actions of ghrelin.. Hormone research, 59(3), 109-17.
MLA
Broglio, Fabio, et al. "Endocrine and non-endocrine actions of ghrelin.." Hormone research, 2003.
RethinkPeptides
RethinkPeptides Research Database. "Endocrine and non-endocrine actions of ghrelin." RPEP-00799. Retrieved from https://rethinkpeptides.com/research/broglio-2003-endocrine-and-nonendocrine-actions
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.