Evidence map›Paper›PMID 25757713›Full record

ArticleSchizophrenia research2015

Dopamine D₂/₃ receptor availability in the striatum of antipsychotic-free older patients with schizophrenia-A [¹¹C]-raclopride PET study.

Shinichiro Nakajima, Fernando Caravaggio, David C Mamo, Benoit H Mulsant, Jun Ku Chung, Eric Plitman, Yusuke Iwata, Philip Gerretsen, Hiroyuki Uchida, Takefumi Suzuki and 4 more

Abstract read
In one paragraph

Article in Schizophrenia research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

5 citing papers in PubMed, 15 citations in OpenAlex.

  1. Trial
  2. Article
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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 at 4 institutions in 3 countries.

Shinichiro NakajimaResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan. Electronic address: shinichiro.l.nakajima@gmail.com.
Fernando CaravaggioResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada. Electronic address: fernando.caravaggio@gmail.com.
David C MamoDepartment of Psychiatry, Faculties of Medicine and Health Science, University of Malta, Msida, Malta. Electronic address: mamodc@gmail.com.
Benoit H MulsantGeriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: benoit.mulsant@camh.ca.
Jun Ku ChungResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada. Electronic address: junku.chung@mail.utoronto.ca.
Eric PlitmanResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada. Electronic address: plitmaneric@gmail.com.
Yusuke IwataResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan. Electronic address: yusuke.iwata2010@gmail.com.
Philip GerretsenResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada. Electronic address: philgerretsen@yahoo.com.
Hiroyuki UchidaGeriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan. Electronic address: hiroyuki.uchida.hu@gmail.com.
Takefumi SuzukiDepartment of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan. Electronic address: takefumi@oak.dti.ne.jp.
Wanna MarResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: wanna.mar@camh.ca.
Alan A WilsonResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: alan.wilson@camh.ca.
Sylvain HouleResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: sylvain.houle@camh.ca.
Ariel Graff-GuerreroResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: ariel_graff@yahoo.com.mx.
Centre for Addiction and Mental Health · CAKeio University · JPUniversity of Toronto · CAUniversity of Malta · MT

Funding

Optimal Dosing of Antipsychotic Drugs in Late LifeR01MH084886 · NIMH · CENTRE FOR ADDICTION AND MENTAL HEALTH · PI MAMO, DAVID · 2010 to 2014
$761k
Canadian Institutes of Health Research MOP-114989Canadian Institutes of Health Research MOP-97946NIMH NIH HHS R01 MH084886NIMH NIH HHS R01MH084886
6 · The paper itself

Abstract

backgroundNo study has examined dopamine D₂/₃ receptor (D₂/₃R) availability in antipsychotic-free older patients with schizophrenia.

methodsWe included patients with schizophrenia 50 years or older who were antipsychotic-free for at least 3 months. We compared non-displaceable binding potential (BPND) of [(11)C]-raclopride in the caudate, putamen, ventral striatum, and globus pallidus between patients and age- and sex-matched healthy controls.

resultsTen patients participated (antipsychotic-naive=4). No differences in BPND were found between patients and controls in any ROIs (F(1, 72)=.42, p=.52).

conclusionThe preliminary results suggest no differences in D₂/₃R availability between antipsychotic-free older patients with schizophrenia and controls.

Indexed as

AgedAged, 80 and overAntipsychotic AgentsCarbon IsotopesCorpus StriatumFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedPositron-Emission TomographyRacloprideReceptors, Dopamine D2SchizophreniaAntipsychotic AgentsCarbon IsotopesRacloprideReceptors, Dopamine D2AgingD(2/3) receptorDopaminePETSchizophrenia

Identifiers

PMID25757713
PMCPMC4409531
OpenAlexW2040871293

What OpenQuestion holds

Textmetadata
LicenceTDM
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.