Appetite signaling flows from gut peptides through enteric nerve networks to brainstem and hypothalamic circuits, with the vagus nerve as the primary conduit — the complete neural-humoral pathway from food to brain decision.
Key findingThe appetite signaling chain: food → gut peptide release (GLP-1, PYY, CCK, ghrelin) → enteric nerve detection → vagal afferent transmission → brainste
What the researchers found
The appetite signaling chain: food → gut peptide release (GLP-1, PYY, CCK, ghrelin) → enteric nerve detection → vagal afferent transmission → brainstem integration (NTS) → hypothalamic processing (arcuate) → behavioral output — the complete food-to-decision neural-humoral pathway.
Why it matters
Relevant for neuropeptides, glp-1, weight-loss.
How the study worked
review study on neuropeptides, glp-1.
What this study cannot tell us
See abstract.
How to read the evidence
moderate evidence.
When this study was published
Published in 2007.
The bigger picture
Advances peptide research.
Questions still open
- Further research needed.
- Clinical translation to evaluate.
Common questions
What was studied?
What was found?
Read the original research
Appetite signaling: from gut peptides and enteric nerves to brain.
Physiology & behavior, 92(1-2), 256-62
Citation
Näslund, Erik; Hellström, Per M. (2007). Appetite signaling: from gut peptides and enteric nerves to brain.. Physiology & behavior, 92(1-2), 256-62.