GH Secretagogues Are Super-Agonists at the Ghrelin Receptor, Not Just Allosteric Modulators
Synthetic GH secretagogues functioned as orthosteric super-agonists (more potent than ghrelin itself) rather than allosteric modulators at the GHS-R1a receptor, clarifying their mechanism as direct receptor activators that exceed the natural ligand.
Quick Facts
What This Study Found
Peptidyl and non-peptidyl GH secretagogues acted as orthosteric super-agonists at GHS-R1a (exceeding ghrelin's own maximal receptor activation) rather than allosteric modulators — they directly activate the receptor more potently than the natural hormone itself.
Key Numbers
How They Did This
research study.
Why This Research Matters
Relevant for peptide research.
The Bigger Picture
Advances peptide research.
What This Study Doesn't Tell Us
See abstract.
Questions This Raises
- ?Further research needed.
- ?Clinical translation to evaluate.
Trust & Context
- Key Stat:
- Key finding Peptidyl and non-peptidyl GH secretagogues acted as orthosteric super-agonists at GHS-R1a (exceeding ghrelin's own maximal receptor activation) rather
- Evidence Grade:
- emerging evidence.
- Study Age:
- Published in 2009.
- Original Title:
- Growth hormone secretagogues and growth hormone releasing peptides act as orthosteric super-agonists but not allosteric regulators for activation of the G protein Galpha(o1) by the Ghrelin receptor.
- Published In:
- Molecular pharmacology, 76(4), 802-11 (2009)
- Database ID:
- RPEP-01453
Evidence Hierarchy
Frequently Asked Questions
What was studied?
GH Secretagogues Are Super-Agonists at the Ghrelin Receptor, Not Just Allosteric Modulators
What was found?
Synthetic GH secretagogues functioned as orthosteric super-agonists (more potent than ghrelin itself) rather than allosteric modulators at the GHS-R1a receptor, clarifying their mechanism as direct receptor activators that exceed the natural ligand.
Read More on RethinkPeptides
Related articles coming soon.
Cite This Study
https://rethinkpeptides.com/research/RPEP-01453APA
Bennett, Kirstie A; Langmead, Christopher J; Wise, Alan; Milligan, Graeme. (2009). Growth hormone secretagogues and growth hormone releasing peptides act as orthosteric super-agonists but not allosteric regulators for activation of the G protein Galpha(o1) by the Ghrelin receptor.. Molecular pharmacology, 76(4), 802-11. https://doi.org/10.1124/mol.109.056101
MLA
Bennett, Kirstie A, et al. "Growth hormone secretagogues and growth hormone releasing peptides act as orthosteric super-agonists but not allosteric regulators for activation of the G protein Galpha(o1) by the Ghrelin receptor.." Molecular pharmacology, 2009. https://doi.org/10.1124/mol.109.056101
RethinkPeptides
RethinkPeptides Research Database. "Growth hormone secretagogues and growth hormone releasing pe..." RPEP-01453. Retrieved from https://rethinkpeptides.com/research/bennett-2009-growth-hormone-secretagogues-and
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.