Evidence map›Paper›PMID 34135473›Full record

ArticleMolecular psychiatry2021

In vivo evidence of lower synaptic vesicle density in schizophrenia.

Rajiv Radhakrishnan, Patrick D Skosnik, Mohini Ranganathan, Mika Naganawa, Takuya Toyonaga, Sjoerd Finnema, Ansel T Hillmer, Irina Esterlis, Yiyun Huang, Nabeel Nabulsi and 2 more

Abstract read
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In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 4 pooled it
–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

66 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Modulation of hippocampal activity in schizophrenia with levetiracetam: a randomized, double-blind, cross-over, placebo-controlled trial.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Trial
  6. Trial
  7. Trial
  8. Article
  9. Detecting neuroplastic effects induced by ketamine in healthy human subjects: A multimodal approach.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
  10. Article
  11. Article
  12. Article
  13. Assessment of noninvasive quantification of [European journal of nuclear medicine and molecular imaging · 2026
    Article
  14. Article
  15. Whole brain grey matter synaptic terminal density, age and intellectual functioning in schizophrenia: an in vivo [Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. The Role of SLC39A8.p.(Ala391Thr) in Schizophrenia Symptom Severity and Cognitive Ability: Cross-Sectional Studies of Schizophrenia and the General UK Population.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2025
    Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Rajiv Radhakrishnan *Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA. rajiv.radhakrishnan@yale.edu.ORCID http://orcid.org/0000-0002-8220-655X
Patrick D Skosnik *Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Mohini RanganathanDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Mika NaganawaDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0002-4408-2621
Takuya ToyonagaDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.
Sjoerd FinnemaDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.
Ansel T HillmerDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0002-8105-1381
Irina EsterlisDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0001-6293-1458
Yiyun HuangDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.
Nabeel NabulsiDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0001-8129-0051
Richard E CarsonDepartment of Radiology and Biomedical Engineering, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0002-9338-7966
Deepak C D'SouzaDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.ORCID http://orcid.org/0000-0003-3141-1462

Funding

SV2A PET Imaging in Healthy Subjects and Epilepsy PatientsR01NS094253 · NINDS · YALE UNIVERSITY · PI CARSON, RICHARD E. · 2016 to 2020
$2.8M
Synaptic Vesicle Density in Cannabis DependenceR21DA043832 · NIDA · YALE UNIVERSITY · PI D'SOUZA, DEEPAK CYRIL · 2017 to 2018
$461k
Imaging Complement Component 4 Gene Effects on Human Synaptic Density in Vivo Using 11C-UCB-J PETR21MH115316 · NIMH · YALE UNIVERSITY · PI RADHAKRISHNAN, RAJIV · 2017 to 2018
$404k
NIDA NIH HHS R21 DA043832NIMH NIH HHS R21 MH115316NINDS NIH HHS R01 NS094253
6 · The paper itself

Abstract

Decreased synaptic spine density has been the most consistently reported postmortem finding in schizophrenia (SCZ). A recently developed in vivo measure of synaptic vesicle density estimated using the novel positron emission tomography (PET) ligand [

Indexed as

SchizophreniaSynaptic VesiclesBrainHumansNerve Tissue ProteinsPositron-Emission TomographyNerve Tissue Proteins

Identifiers

What OpenQuestion holds

Textmetadata
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.