Evidence map›Paper›PMID 22368240›Full record

ArticleThe Australian and New Zealand journal of psychiatry2012

Size and shape of the caudate nucleus in individuals with bipolar affective disorder.

Daniel Ong, Mark Walterfang, Gin S Malhi, Martin Styner, Dennis Velakoulis, Christos Pantelis

Open access · greenAbstract read
In one paragraph

Article in The Australian and New Zealand journal of psychiatry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

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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

6 authors at 5 institutions in 2 countries.

Daniel OngMelbourne Neuropsychiatry Centre, University of Melbourne and Melbourne Health, Melbourne, Australia.
Mark Walterfang
Gin S Malhi
Martin Styner
Dennis Velakoulis
Christos Pantelis
University of Melbourne · AUMelbourne Health · AUThe Royal Melbourne Hospital · AUUniversity of North Carolina at Chapel Hill · USUniversity of Sydney · AU

Funding

Washington University ConsoritumU54EB005149 · NIBIB · BRIGHAM AND WOMEN'S HOSPITAL · PI KIKINIS, RON · 2004 to 2013
$39.3M
UNC MRDD Research CenterP30HD003110 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BELGER, AYSENIL · 1985 to 2012
$28.7M
NIBIB NIH HHS U54 EB005149NICHD NIH HHS P30 HD003110
6 · The paper itself

Abstract

objectiveThe caudate nucleus (CN) is a crucial component of the ventral striatum, which is part of a prefrontal-striatal-thalamic circuit that is modulated by limbic structures to subserve emotional processing. Bipolar disorder is thought to be underpinned by dysfunctional anterior limbic networks, although MRI studies examining the CN have shown equivocal results. As gross volumetric analyses may not detect subtle regional change, we aimed to clarify the role of the CN in bipolar disorder by undertaking shape analysis to detect regional reductions.

methodsThe CN was manually traced on MRI scans from 27 patients with bipolar-I disorder and 24 matched controls. A non-parametric spherical harmonic shape analysis was undertaken using the SPHARM toolkit.

resultsWhilst the left CN volume was consistently larger in the sample, there was no effect of group or gender or significant interactions between these variables. Volume did not correlate with illness duration or lithium dosage, but was larger in those with a history of psychosis at trend level. However, left caudate shape differed significantly between groups, with deflation in an area along the ventromedial surface (connecting to dorsolateral prefrontal regions) in bipolar patients. Psychotic patients showed increases in the dorsal head and body at trend level overall, in regions connecting to medial and orbitofrontal regions.

conclusionsThese findings suggest that subtle rather than gross structural changes occur in the CN, which may not be detectable by volumetric analysis alone, and reflect alterations in specific frontostriatal circuitry in the disorder.

Indexed as

AdultBipolar DisorderCase-Control StudiesCaudate NucleusFemaleFunctional LateralityHumansHypertrophyMagnetic Resonance ImagingMaleNeuroimagingStatistics, Nonparametric

Identifiers

PMID22368240
PMCPMC3328643
OpenAlexW2001478556

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.