Evidence map›Paper›PMID 29191751›Full record

ArticleNeuropharmacology2018

Hippocampus ghrelin receptor signaling promotes socially-mediated learned food preference.

Ted M Hsu, Emily E Noble, David J Reiner, Clarissa M Liu, Andrea N Suarez, Vaibhav R Konanur, Matthew R Hayes, Scott E Kanoski

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. A ventral hippocampus to nucleus accumbens pathway regulates impulsivity in male but not female rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  3. Article
  4. A ventral hippocampus to nucleus accumbens pathway regulates impulsivity.bioRxiv : the preprint server for biology · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Ghrelin system in Alzheimer's disease.Current opinion in neurobiology · 2023
    Review
  10. Article
  11. DOCK4 regulates ghrelin production in gastric X/A-like cells.Journal of endocrinological investigation · 2022
    Article
  12. Review
  13. Article
  14. Article
  15. Inhibiting ventral hippocampal NMDA receptors andLearning & memory (Cold Spring Harbor, N.Y.) · 2021
    Article
  16. Article
  17. Article
  18. Review
  19. Linking Social Cognition to Learning and Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Ted M HsuHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA; Neuroscience Program, University of Southern California, Los Angeles, CA, USA.
Emily E NobleHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA.
David J ReinerTranslational Neuroscience Program, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Clarissa M LiuHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA; Neuroscience Program, University of Southern California, Los Angeles, CA, USA.
Andrea N SuarezHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA.
Vaibhav R KonanurGraduate Program in Neuroscience, University of Illinois at Chicago, Chicago, IL, USA.
Matthew R HayesTranslational Neuroscience Program, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Scott E KanoskiHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA; Neuroscience Program, University of Southern California, Los Angeles, CA, USA. Electronic address: kanoski@usc.edu.
University of Southern California · USUniversity of Pennsylvania · USUniversity of Illinois Chicago · US

Funding

Higher-Order Neural Control of Food IntakeR01DK104897 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KANOSKI, SCOTT EDWARD · 2015 to 2024
$4.3M
Amylin Modulates Food RewardR01DK105155 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI HAYES, MATTHEW R · 2016 to 2025
$4.1M
Amylin receptors in the lateral dorsal tegmental area regulate food intakeF31DK105858 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI REINER, DAVID · 2015 to 2016
$87k
Early life sugar consumption: effects on cognitive impairment and susceptibility to obesityF32DK111158 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI NOBLE, EMILY ELIZABETH · 2017 to 2018
$75k
Neural Circuits underlying ghrelin-mediated hyperphagiaF31DK107333 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HSU, TED MENGHSIUNG · 2016 to 2017
$42k
NIDDK NIH HHS F31 DK105858NIDDK NIH HHS F31 DK107333NIDDK NIH HHS F32 DK111158NIDDK NIH HHS R01 DK104897NIDDK NIH HHS R01 DK105155
6 · The paper itself

Abstract

Social cues are potent regulators of feeding behavior, yet the neurobiological mechanisms through which social cues influence food intake are poorly understood. Here we investigate the hypothesis that the appetite-promoting gut-derived hormone, ghrelin, signals in the hippocampus to promote learned social aspects of feeding behavior. We utilized a procedure known as 'social transmission of food preference' (STFP) in which rats ('Observers') experience a social interaction with another rat ('Demonstrators') that recently consumed flavored/scented chow. STFP learning in Observer rats is indicated by a significant preference for the Demonstrator paired flavor of chow vs. a novel unpaired flavor of chow in a subsequent consumption choice test. Our results show that relative to vehicle treatment, ghrelin targeted to the ventral CA1 subregion of the hippocampus (vHP) enhanced STFP learning in rats. Additionally, STFP was impaired following peripheral injections of l-cysteine that reduce circulating ghrelin levels, suggesting that vHP ghrelin-mediated effects on STFP require peripheral ghrelin release. Finally, the endogenous relevance of vHP ghrelin receptor (GHSR-1A) signaling in STFP is supported by our data showing that STFP learning was eliminated following targeted viral vector RNA interference-mediated knockdown of vHP GHSR-1A mRNA. Control experiments indicate that vHP ghrelin-mediated STFP effects are not secondary to altered social exploration and food intake, nor to altered food preference learning based on nonsocial olfactory cues. Overall these data reveal a novel neurobiological system that promotes conditioned, social aspects of feeding behavior.

Indexed as

Social BehaviorAnimalsCysteineFeeding BehaviorGene Knockdown TechniquesGhrelinHippocampusLearningMaleOlfactory PerceptionRats, Sprague-DawleyReceptors, GhrelinRNA InterferenceRNA, MessengerCysteineGhrelinReceptors, GhrelinRNA, MessengerFeedingFood intakeObesityRewardSocial behaviorSTFPVentral hippocampus

Identifiers

PMID29191751
PMCPMC5820148
OpenAlexW2769904524

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.