Evidence map›Paper›PMID 29872139›Full record

ArticleNature communications2018

Gut vagal sensory signaling regulates hippocampus function through multi-order pathways.

Andrea N Suarez, Ted M Hsu, Clarissa M Liu, Emily E Noble, Alyssa M Cortella, Emily M Nakamoto, Joel D Hahn, Guillaume de Lartigue, Scott E Kanoski

Registry-linked trialAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06869941 (Adipose Tissue Gene Expression and Metabolomics Links to the Gut Microbiome-brain Axis), which is not on this map. Cited by 132 papers.

0numbers the graph read from it
0cells of the map it votes in
132citing papers in PubMed
–field-weighted citation impact
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.

NCT06869941 recruitingnot on this mapstarted 2025, after this paper: background citation

Adipose Tissue Gene Expression and Metabolomics Links to the Gut Microbiome-brain Axis (POINSETTIA Study)

Typeobservational_patient_registrySponsorInstitut d'Investigació Biomèdica de Girona Dr. Josep TruetaRan2025 to 2027Enrolled100ConditionsObesity
3 · Its place in the literature

Who cites it

132 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. The critical role of gut-brain signalling in eating behaviour and obesity.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Gut-brain communication: types of sensory nerves and mechanisms of activation.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review

72 more citing papers are in PubMed but not listed here.

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

9 authors.

Andrea N SuarezHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
Ted M HsuNeuroscience Graduate Program, University of Southern California, Los Angeles, California, USA.
Clarissa M LiuHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
Emily E NobleHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
Alyssa M CortellaHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
Emily M NakamotoNeuroscience Graduate Program, University of Southern California, Los Angeles, California, USA.
Joel D HahnNeurobiology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
Guillaume de LartigueThe John B. Pierce Laboratory, New Haven, Connecticut, USA. gdelartigue@jbpierce.org.
Scott E KanoskiHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, California, USA. kanoski@usc.edu.

Funding

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
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
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
Gut to brain pathways regulating conditioned appetitive behaviorF31DK116558 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SUAREZ, ANDREA · 2018 to 2019
$51k
NIDDK NIH HHS F31 DK116558NIDDK NIH HHS K99 DK094871NIDDK NIH HHS R00 DK094871NIDDK NIH HHS R01 DK104897NIDDK NIH HHS R01 DK116004
6 · The paper itself

Abstract

The vagus nerve is the primary means of neural communication between the gastrointestinal (GI) tract and the brain. Vagally mediated GI signals activate the hippocampus (HPC), a brain region classically linked with memory function. However, the endogenous relevance of GI-derived vagal HPC communication is unknown. Here we utilize a saporin (SAP)-based lesioning procedure to reveal that selective GI vagal sensory/afferent ablation in rats impairs HPC-dependent episodic and spatial memory, effects associated with reduced HPC neurotrophic and neurogenesis markers. To determine the neural pathways connecting the gut to the HPC, we utilize monosynaptic and multisynaptic virus-based tracing methods to identify the medial septum as a relay connecting the medial nucleus tractus solitarius (where GI vagal afferents synapse) to dorsal HPC glutamatergic neurons. We conclude that endogenous GI-derived vagal sensory signaling promotes HPC-dependent memory function via a multi-order brainstem-septal pathway, thereby identifying a previously unknown role for the gut-brain axis in memory control.

Indexed as

AnimalsCerebral CortexGastrointestinal TractHippocampusMaleMemoryNeural PathwaysRats, Sprague-DawleySensory Receptor CellsSynapsesTelencephalonVagus Nerve

Identifiers

PMID29872139
PMCPMC5988686

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.