Evidence map›Paper›PMID 34228959›Full record

ArticleNeuron2021

Psilocybin induces rapid and persistent growth of dendritic spines in frontal cortex in vivo.

Ling-Xiao Shao, Clara Liao, Ian Gregg, Pasha A Davoudian, Neil K Savalia, Kristina Delagarza, Alex C Kwan

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Neuron, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07306364 (Psilocybin in Chronic Low Back Pain), which is not on this map. Cited by 341 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
341citing papers in PubMed, 4 pooled it
51.3field-weighted citation impact, top 1% 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.

NCT07306364 phase2not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Psilocybin in Chronic Low Back Pain: An Integrative Study of Lab-Based Mechanisms and Real-World Physical Therapy Outcomes

TypeinterventionalSponsorYale UniversityRan2026 to 2029Enrolled45ConditionsChronic Low Back Pain (CLBP), Physical Therapy, PsilocybinArmsPsilocybin 10 mg, Psilocybin 25 mg, Niacin 100 mg
3 · Its place in the literature

Who cites it

341 citing papers in PubMed, 4 syntheses or guidelines pooled it, 547 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Impact of psilocybin on cognitive function: A systematic review.Psychiatry and clinical neurosciences · 2024
    Pooled it
  4. Pooled it
  5. Psilocybin therapy for mood dysfunction in Parkinson's disease: an open-label pilot trial.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Trial
  6. Article
  7. 5-HTNature neuroscience · 2026
    Article
  8. Article
  9. Enhancing cGMP signaling with psilocybin reduces head twitch and restructures the synaptic proteome while maintaining antidepressant response.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  10. Review
  11. Article
  12. Article
  13. Psilocybin produces amplified acute responses and sex-specific long-term increases in sensorimotor gating in the mGlu5 knockout mouse model of schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Ling-Xiao ShaoDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA.
Clara LiaoInterdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06511, USA.
Ian GreggDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA.
Pasha A DavoudianInterdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06511, USA; Medical Scientist Training Program, Yale University School of Medicine, New Haven, CT 06511, USA.
Neil K SavaliaInterdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06511, USA; Medical Scientist Training Program, Yale University School of Medicine, New Haven, CT 06511, USA.
Kristina DelagarzaDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA.
Alex C KwanDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA; Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06511, USA; Department of Neuroscience, Yale University School of Medicine, New Haven, CT 06511, USA. Electronic address: alex.kwan@yale.edu.
Yale University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007205 · NIGMS · YALE UNIVERSITY · PI KAZMIERCZAK, BARBARA I · 1985 to 2019
$42.9M
Interdepartmental Neuroscience Program (INP)T32NS041228 · NINDS · YALE UNIVERSITY · PI Charles A Greer, Marina R Picciotto · 2001 to 2026
$12.0M
A Dendritic Substrate for Fast-Acting Antidepressant ActionR01MH121848 · NIMH · YALE UNIVERSITY · PI KWAN, CHUN-HAY ALEX · 2020 to 2024
$2.6M
A swept-field confocal microscope for live cell imagingS10OD023598 · OD · YALE UNIVERSITY · PI NATHANSON, MICHAEL H · 2017 to 2017
$570k
NIGMS NIH HHS T32 GM007205NIH HHS S10 OD023598NIMH NIH HHS R01 MH121848NINDS NIH HHS T32 NS041228
6 · The paper itself

Abstract

Psilocybin is a serotonergic psychedelic with untapped therapeutic potential. There are hints that the use of psychedelics can produce neural adaptations, although the extent and timescale of the impact in a mammalian brain are unknown. In this study, we used chronic two-photon microscopy to image longitudinally the apical dendritic spines of layer 5 pyramidal neurons in the mouse medial frontal cortex. We found that a single dose of psilocybin led to ∼10% increases in spine size and density, driven by an elevated spine formation rate. The structural remodeling occurred quickly within 24 h and was persistent 1 month later. Psilocybin also ameliorated stress-related behavioral deficit and elevated excitatory neurotransmission. Overall, the results demonstrate that psilocybin-evoked synaptic rewiring in the cortex is fast and enduring, potentially providing a structural trace for long-term integration of experiences and lasting beneficial actions.

Indexed as

AnimalsCerebral CortexDendritesDendritic SpinesFemaleFrontal LobeMaleMiceNeuronal PlasticityPsilocybinPyramidal CellsSynaptic TransmissionPsilocybinantidepressantdendriteshallucinogenmedial prefrontal cortexneural plasticitypsilocybinpyramidal neuronserotonergic psychedelicstructural remodelingsynapse

Identifiers

PMID34228959
PMCPMC8376772
OpenAlexW3179469168

What OpenQuestion holds

Textmetadata
LicenceTDM
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.