Evidence map›Paper›PMID 29878197›Full record

ArticleSchizophrenia bulletin2019

Impaired Prefrontal Cortical Dopamine Release in Schizophrenia During a Cognitive Task: A [11C]FLB 457 Positron Emission Tomography Study.

Naren Rao, Georg Northoff, Abanti Tagore, Pablo Rusjan, Miran Kenk, Alan Wilson, Sylvain Houle, Antonio Strafella, Gary Remington, Romina Mizrahi

Open access · bronzeAbstract read
In one paragraph

Article in Schizophrenia bulletin, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 59 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. NIMH perspectives on future directions in neuroimaging for mental health.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  12. Observational
  13. Review
  14. Article
  15. Review
  16. Maternal Immune Activation Induces Cortical Catecholaminergic Hypofunction and Cognitive Impairments in Offspring.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2023
    Article
  17. Review
  18. Psychosis spectrum illnesses as disorders of prefrontal critical period plasticity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Review
  19. Article
  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

10 authors at 3 institutions in 2 countries.

Naren RaoResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Georg NorthoffInstitute of Mental Health Research: Mind, Brain Imaging and Neuroethics, University of Ottawa, Ottawa, ON, Canada.
Abanti TagoreResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Pablo RusjanResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Miran KenkResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Alan WilsonResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Sylvain HouleResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Antonio StrafellaResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Gary RemingtonResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Romina MizrahiResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Centre for Addiction and Mental Health · CANational Institute of Mental Health and Neurosciences · INUniversity of Ottawa · CA

Funding

CIHR 116290
6 · The paper itself

Abstract

Evidence from several lines of research suggests decreased dopamine release in the prefrontal cortex as the neurochemical correlates of cognitive deficits in schizophrenia (SCZ). However, in vivo examination of cortical hypodopaminergia using positron emission tomography (PET) during cognitive task performance in SCZ remains to be investigated. We examined dopamine release in anterior cingulate cortex (ACC) and dorsolateral prefrontal cortex (DLPFC), using PET while participants were performing a cognitive task. Thirteen drug-free patients with SCZ and 13 healthy volunteers (HV) matched for age and sex participated in the study. Data were acquired between 2011 and 2015. Two PET scans with [11C]FLB 457 were acquired while the participants were performing the Wisconsin Card Sorting Test (WCST) and a sensorimotor control task (SMCT). A magnetic resonance image was acquired for anatomical delineation. Differences in cortical dopamine release between SCZ and HV, indexed as percentage change in binding potential between WCST and SMCT (ΔBPND), were calculated in ACC and DLPFC. We observed significant differences in the ΔBPND in ACC (HV = 4.40 ± 6.00; SCZ = -11.48 ± 15.08; t = 3.52; P = .003) and a trend-level difference in ΔBPND in DLPFC (HV = -0.58 ± 8.45; SCZ = -7.79 ± 11.28; t = 1.84; P = .079), suggesting dopamine depletion in cortical brain regions in patients with SCZ while performing a cognitive task. These results provide the first in vivo evidence for reduced dopamine release or even dopamine depletion while performing cognitive task in ACC and DLPFC in patients with SCZ. The present results provide support for the frontal hypodopaminergia hypothesis of cognitive symptoms in SCZ.

Indexed as

AdultCognitive DysfunctionDopamineExecutive FunctionFemaleGyrus CinguliHumansMalePositron-Emission TomographyPrefrontal CortexPsychomotor PerformancePsychotic DisordersSchizophreniaYoung AdultDopaminecognitionhypodopaminergiaPETpsychosis

Identifiers

PMID29878197
PMCPMC6483585
OpenAlexW2807132081

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.