Different Opioid Peptides Drive Sugar Preference vs General Food Reward Differently
Endogenous opioid peptides differentially regulated sucrose consumption versus food-reinforced behavior in mice, with kappa-opioid (dynorphin) and mu-opioid (endorphin/enkephalin) systems mediating different aspects of food reward.
Quick Facts
What This Study Found
Kappa-opioid (dynorphin) and mu-opioid (endorphin/enkephalin) systems differentially regulated sucrose preference versus food-reinforced operant behavior in mice — different opioid families mediate different components of food reward and palatable eating.
Key Numbers
How They Did This
animal-study study on opioid-peptides, addiction.
Why This Research Matters
Relevant for opioid-peptides, addiction.
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 Kappa-opioid (dynorphin) and mu-opioid (endorphin/enkephalin) systems differentially regulated sucrose preference versus food-reinforced operant behav
- Evidence Grade:
- moderate evidence.
- Study Age:
- Published in 2006.
- Original Title:
- Differential involvement of endogenous opioids in sucrose consumption and food reinforcement.
- Published In:
- Pharmacology, biochemistry, and behavior, 85(3), 601-11 (2006)
- Authors:
- Hayward, Michael D(2), Schaich-Borg, Alexandra, Pintar, John E, Low, Malcolm J
- Database ID:
- RPEP-01145
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
What was studied?
Different Opioid Peptides Drive Sugar Preference vs General Food Reward Differently
What was found?
Endogenous opioid peptides differentially regulated sucrose consumption versus food-reinforced behavior in mice, with kappa-opioid (dynorphin) and mu-opioid (endorphin/enkephalin) systems mediating different aspects of food reward.
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Cite This Study
https://rethinkpeptides.com/research/RPEP-01145APA
Hayward, Michael D; Schaich-Borg, Alexandra; Pintar, John E; Low, Malcolm J. (2006). Differential involvement of endogenous opioids in sucrose consumption and food reinforcement.. Pharmacology, biochemistry, and behavior, 85(3), 601-11.
MLA
Hayward, Michael D, et al. "Differential involvement of endogenous opioids in sucrose consumption and food reinforcement.." Pharmacology, 2006.
RethinkPeptides
RethinkPeptides Research Database. "Differential involvement of endogenous opioids in sucrose co..." RPEP-01145. Retrieved from https://rethinkpeptides.com/research/hayward-2006-differential-involvement-of-endogenous
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.