Evidence map›Paper›PMID 32419481›Full record

ArticleCanadian journal of psychiatry. Revue canadienne de psychiatrie2021

Preservation of Gray Matter Volume in Early Stage of Bipolar Disorder: A Case for Early Intervention: Préservation du volume de matière grise au stade précoce du trouble bipolaire: un cas pour intervention précoce.

Kamyar Keramatian, Wayne Su, Gayatri Saraf, Trisha Chakrabarty, Lakshmi N Yatham

Abstract read
In one paragraph

Article in Canadian journal of psychiatry. Revue canadienne de psychiatrie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 2 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

3 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
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

5 authors.

Kamyar KeramatianDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0003-4958-6025
Wayne SuDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.
Gayatri SarafDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.
Trisha ChakrabartyDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.
Lakshmi N YathamDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIt has been proposed that different stages of the bipolar disorder might have distinct neurobiological changes. However, the evidence for this has not been consistent, as the studies in early stages of the illness are limited by small sample sizes. The purpose of this study was to investigate the gray matter volume changes in bipolar patients who recently recovered from their first episode of mania (FEM).

methodsUsing a whole-brain voxel-based analysis, we compared the regional gray matter volumes of 61 bipolar patients who have recovered from their FEM in the past 3 months with 43 age- and gender-matched healthy participants. We also performed a series of subgroup analyses to determine the effects of hospitalization during the FEM, history of depressive episodes, and exposure to lithium.

resultsNo statistically significant difference was found between gray matter volumes of FEM patients and healthy participants, even at a more liberal threshold (

conclusionThis study represents the largest structural neuroimaging investigation of FEM published to date. Early stage of bipolar disorder was not found to be associated with significant gray matter volume changes. Our findings suggest that there might be a window of opportunity for early intervention strategies to prevent or delay neuroprogression in bipolar disorder.

Indexed as

Bipolar DisorderBrainCerebral CortexGray MatterHumansMagnetic Resonance Imagingbipolar disordersbrain imagingMRIneurobiology

Identifiers

PMID32419481
PMCPMC7918870

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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.