Evidence map›Paper›PMID 32946754›Full record

ArticleCurrent biology : CB2020

Ghrelin Signaling Affects Feeding Behavior, Metabolism, and Memory through the Vagus Nerve.

Elizabeth A Davis, Hallie S Wald, Andrea N Suarez, Jasenka Zubcevic, Clarissa M Liu, Alyssa M Cortella, Anna K Kamitakahara, Jaimie W Polson, Myrtha Arnold, Harvey J Grill and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

58 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. The critical role of gut-brain signalling in eating behaviour and obesity.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  5. Review
  6. Review
  7. Mechanistic insights into the liver-brain axis during chronic liver disease.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  8. CBMolecular psychiatry · 2026
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Motilin stimulates food intake linked to gastric motility inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Article
  18. Article
  19. 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

12 authors at 6 institutions in 3 countries.

Elizabeth A DavisDepartment of Biological Sciences, Human and Evolutionary Biology Section, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA.
Hallie S WaldInstitute of Diabetes, Obesity and Metabolism, Graduate Groups of Psychology and Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.
Andrea N SuarezDepartment of Biological Sciences, Human and Evolutionary Biology Section, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA.
Jasenka ZubcevicDepartment of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA.
Clarissa M LiuNeuroscience Graduate Program, University of Southern California, Los Angeles, CA, USA.
Alyssa M CortellaDepartment of Biological Sciences, Human and Evolutionary Biology Section, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA.
Anna K KamitakaharaChildren's Hospital of Los Angeles, Los Angeles, CA 90089, USA.
Jaimie W PolsonSchool of Medical Sciences & Bosch Institute, The University of Sydney, Sydney 2006, Australia.
Myrtha ArnoldDepartment of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland.
Harvey J GrillInstitute of Diabetes, Obesity and Metabolism, Graduate Groups of Psychology and Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.
Guillaume de LartiguePharmacodynamics Department, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA; Center for Integrative Cardiovascular and Metabolic Disease, University of Florida, Gainesville, FL 32610, USA. Electronic address: gdelartigue@ufl.edu.
Scott E KanoskiDepartment of Biological Sciences, Human and Evolutionary Biology Section, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA; Neuroscience Graduate Program, University of Southern California, Los Angeles, CA, USA. Electronic address: kanoski@usc.edu.
University of Southern California · USUniversity of Florida · USUniversity of Pennsylvania · USChildren's Hospital of Los Angeles · USETH Zurich · CHThe University of Sydney · AU

Funding

NEURAL HIERARCHY IN THE MODULATION OF INGESTIVE BEHAVIORR01DK021397 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI GRILL, HARVEY J, HAYES, MATTHEW R · 1986 to 2021
$8.8M
Higher-Order Neural Control of Food IntakeR01DK104897 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KANOSKI, SCOTT EDWARD · 2015 to 2024
$4.3M
Evaluating the therapeutic potential of vagal CART circuitry for treating metabolic diseaseR01DK116004 · NIDDK · UNIVERSITY OF FLORIDA · PI Guillaume FH de Lartigue · 2018 to 2026
$3.6M
Control of feeding behavior by melanin-concentrating hormoneR01DK118402 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Scott Edward Kanoski · 2018 to 2026
$3.2M
Neural mechanisms of host-microbiota interaction in hypertension: a potential for bio-electronic medicineR01HL152162 · NHLBI · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI ZUBCEVIC, JASENKA · 2021 to 2025
$2.2M
The role of vagal afferent neurons in regulating feeding behaviorR00DK094871 · NIDDK · JOHN B. PIERCE LABORATORY, INC. · PI DE LARTIGUE, GUILLAUME FH · 2015 to 2017
$718k
Neural Hierarchy in the Modulation of Ingestive BehaviorR56DK021397 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI GRILL, HARVEY J · 2008 to 2008
$434k
Gut-brain axis: functional link between microbial metabolites and neurogenic hypertensionR21AT010192 · NCCIH · UNIVERSITY OF FLORIDA · PI MARTYNIUK, CHRISTOPHER JOSEPH · 2019 to 2020
$419k
The role of vagal afferent neurons in regulating feeding behaviorK99DK094871 · NIDDK · UNIVERSITY OF CALIFORNIA AT DAVIS · PI DE LARTIGUE, GUILLAUME FH · 2013 to 2014
$177k
Neurobehavioral correlates of individual differences in obesity susceptibilityF31DK120162 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI WALD, HALLIE S · 2018 to 2020
$148k
Ventral Hippocampus Circuits Underlying Conditioned Feeding BehaviorF31DK118944 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI LIU, CLARISSA · 2018 to 2020
$81k
Gut to brain pathways regulating conditioned appetitive behaviorF31DK116558 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SUAREZ, ANDREA · 2018 to 2019
$51k
NCCIH NIH HHS R21 AT010192NHLBI NIH HHS R01 HL152162NIDDK NIH HHS F31 DK116558NIDDK NIH HHS F31 DK118944NIDDK NIH HHS F31 DK120162NIDDK NIH HHS K99 DK094871NIDDK NIH HHS R00 DK094871NIDDK NIH HHS R01 DK021397NIDDK NIH HHS R01 DK104897NIDDK NIH HHS R01 DK116004NIDDK NIH HHS R01 DK118402NIDDK NIH HHS R56 DK021397
6 · The paper itself

Abstract

Vagal afferent neuron (VAN) signaling sends information from the gut to the brain and is fundamental in the control of feeding behavior and metabolism [1]. Recent findings reveal that VAN signaling also plays a critical role in cognitive processes, including affective motivational behaviors and hippocampus (HPC)-dependent memory [2-5]. VANs, located in nodose ganglia, express receptors for various gut-derived peptide signals; however, the function of these receptors with regard to feeding behavior, metabolism, and memory control is poorly understood. We hypothesized that VAN-mediated processes are influenced by ghrelin, a stomach-derived orexigenic hormone, via communication to its receptor (GHSR) expressed on gut-innervating VANs. To examine this hypothesis, rats received nodose ganglia injections of an adeno-associated virus (AAV) expressing short hairpin RNAs targeting GHSR (or a control AAV) for RNAi-mediated VAN-specific GHSR knockdown. Results reveal that VAN GHSR knockdown induced various feeding and metabolic disturbances, including increased meal frequency, impaired glucose tolerance, delayed gastric emptying, and increased body weight compared to controls. Additionally, VAN-specific GHSR knockdown impaired HPC-dependent contextual episodic memory and reduced HPC brain-derived neurotrophic factor expression, but did not affect anxiety-like behavior or general activity levels. A functional role for endogenous VAN GHSR signaling was further confirmed by results revealing that VAN signaling is required for the hyperphagic effects of ghrelin administered at dark onset, and that gut-restricted ghrelin-induced increases in VAN firing rate require intact VAN GHSR expression. Collective results reveal that VAN GHSR signaling is required for both normal feeding and metabolic function as well as HPC-dependent memory.

Indexed as

Afferent PathwaysAnimalsBody WeightBrain-Derived Neurotrophic FactorFeeding BehaviorGastric EmptyingGene Knockdown TechniquesGhrelinGlucoseHippocampusHungerMaleMemory, EpisodicMiceModels, AnimalNeuronsBdnf protein, ratBrain-Derived Neurotrophic FactorGhrelinGlucoseReceptors, GhrelinCCKdiabetesgastrointestinal tractGHSRgut-brainhippocampushungerlearningnodose ganglionobesity

Identifiers

PMID32946754
PMCPMC7674191
OpenAlexW3087686918

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.