Evidence map›Paper›PMID 41545369›Full record

ArticleNature communications2026

Environmental enrichment and physical exercise prevent stress-induced social avoidance and blood-brain barrier alterations via Fgf2.

Sam E J Paton, José L Solano, Alice Cadoret, Adeline Collignon, Luisa Bandeira Binder, Béatrice Daigle, Laura Menegatti Bevilacqua, Émanuelle Richer, François Coulombe-Rozon, Laurence Dion-Albert and 4 more

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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.

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

7 citing papers in PubMed.

  1. Review
  2. Article
  3. FGF family in health and disease.Molecular biomedicine · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. Article
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

14 authors.

Sam E J PatonDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0000-0001-6388-5705
José L SolanoDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0000-0002-1873-4657
Alice CadoretDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
Adeline CollignonDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0009-0005-5086-5648
Luisa Bandeira BinderDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0000-0003-2372-8689
Béatrice DaigleDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
Laura Menegatti BevilacquaDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
Émanuelle RicherDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
François Coulombe-RozonDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
Laurence Dion-AlbertDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.
Katarzyna A DudekDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0000-0003-4894-5268
Signature Consortium
Manon LebelDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada.ORCID http://orcid.org/0000-0003-1649-1214
Caroline MénardDepartment of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec, QC, Canada. Caroline.Menard@fmed.ulaval.ca.ORCID http://orcid.org/0000-0001-8202-7378

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronic stress promotes blood-brain barrier (BBB) integrity loss leading to passage of inflammatory mediators in mood-regulating brain areas and establishment of depressive behaviors. Conversely, neurovascular adaptations favoring stress resilience and preventive strategies to promote them are undetermined. We report that environmental enrichment dampens stress-induced loss of endothelial tight junction Claudin-5 (Cldn5) along with anxiety- and depression-like behaviors in male mice via an increase in fibroblast growth factor 2 (Fgf2). Coping with voluntary physical exercise also protects the BBB from stress deleterious effects by increasing Fgf2. Fgf2 is mostly expressed by glial cells, and viral-mediated astrocyte-specific Fgf2 upregulation prevents stress-induced social avoidance while downregulation increases stress susceptibility and blunts physical exercise benefits. Treatment of mouse and human endothelial cells with Fgf2 prior an immune challenge reduces BBB dysfunction, Cldn5 loss, and altered signaling supporting its protective role. Circulating FGF2 level is linked with depression severity and symptomatology in men and women reinforcing involvement of this growth factor in mood disorders.

Indexed as

Blood-Brain BarrierFibroblast Growth Factor 2Physical Conditioning, AnimalStress, PsychologicalAnimalsAnxietyClaudin-5DepressionEndothelial CellsFemaleHumansMaleMiceMice, Inbred C57BLClaudin-5Cldn5 protein, mouseFibroblast Growth Factor 2

Identifiers

PMID41545369
PMCPMC12868728

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.