Ghrelin Directly Activates Dopamine Reward Neurons: The Molecular Link Between Hunger and Pleasure
Ghrelin directly activated midbrain dopamine neurons and reorganized their synaptic inputs, establishing the molecular mechanism linking the hunger hormone to the brain's reward/pleasure system and food-seeking behavior.
Quick Facts
What This Study Found
Ghrelin directly excited ventral tegmental area (VTA) dopamine neurons and increased excitatory synaptic inputs while promoting food-seeking behavior — establishing the molecular neurocircuit linking the hunger hormone to the brain's reward/motivation system.
Key Numbers
How They Did This
animal-study study on ghrp, addiction.
Why This Research Matters
Relevant for ghrp, addiction, weight-loss.
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 Ghrelin directly excited ventral tegmental area (VTA) dopamine neurons and increased excitatory synaptic inputs while promoting food-seeking behavior
- Evidence Grade:
- strong evidence.
- Study Age:
- Published in 2006.
- Original Title:
- Ghrelin modulates the activity and synaptic input organization of midbrain dopamine neurons while promoting appetite.
- Published In:
- The Journal of clinical investigation, 116(12), 3229-39 (2006)
- Authors:
- Abizaid, Alfonso(4), Liu, Zhong-Wu, Andrews, Zane B(2), Shanabrough, Marya, Borok, Erzsebet, Elsworth, John D, Roth, Robert H, Sleeman, Mark W, Picciotto, Marina R, Tschöp, Matthias H, Gao, Xiao-Bing, Horvath, Tamas L
- Database ID:
- RPEP-01112
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
What was studied?
Ghrelin Directly Activates Dopamine Reward Neurons: The Molecular Link Between Hunger and Pleasure
What was found?
Ghrelin directly activated midbrain dopamine neurons and reorganized their synaptic inputs, establishing the molecular mechanism linking the hunger hormone to the brain's reward/pleasure system and food-seeking behavior.
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Cite This Study
https://rethinkpeptides.com/research/RPEP-01112APA
Abizaid, Alfonso; Liu, Zhong-Wu; Andrews, Zane B; Shanabrough, Marya; Borok, Erzsebet; Elsworth, John D; Roth, Robert H; Sleeman, Mark W; Picciotto, Marina R; Tschöp, Matthias H; Gao, Xiao-Bing; Horvath, Tamas L. (2006). Ghrelin modulates the activity and synaptic input organization of midbrain dopamine neurons while promoting appetite.. The Journal of clinical investigation, 116(12), 3229-39.
MLA
Abizaid, Alfonso, et al. "Ghrelin modulates the activity and synaptic input organization of midbrain dopamine neurons while promoting appetite.." The Journal of clinical investigation, 2006.
RethinkPeptides
RethinkPeptides Research Database. "Ghrelin modulates the activity and synaptic input organizati..." RPEP-01112. Retrieved from https://rethinkpeptides.com/research/abizaid-2006-ghrelin-modulates-the-activity
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.