Evidence map›Paper›PMID 34699854›Full record

SynthesisJournal of affective disorders2022

The uncinate fasciculus in individuals with and at risk for bipolar disorder: A meta-analysis.

Ellie Xu, Lynn Nguyen, Rebecca Hu, Caitlin M Stavish, Ellen Leibenluft, Julia O Linke

Open access · hybridAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Journal of affective disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Brain White Matter Microstructure in Middle and Older Aged Adults With Bipolar Disorder: A 2-Site Study.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2026
    Article
  4. Review
  5. Review
  6. Article
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  8. A review of diffusion MRI in mood disorders: mechanisms and predictors of treatment response.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  9. White Matter Function and Network Abnormalities in Patients with Diabetic Retinopathy.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024
    Article
  10. Article
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  12. Review
  13. 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

6 authors at 2 institutions in 1 country.

Ellie XuSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
Lynn NguyenSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
Rebecca HuSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
Caitlin M StavishSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
Ellen LeibenluftSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
Julia O LinkeSection on Mood Dysregulation and Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States.
National Institute of Mental Health · USNational Institutes of Health · US

Funding

The Pathophysiology and Treatment Of Children With Severe Mood DysregulationZIAMH002786 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI LEIBENLUFT, ELLEN · 2009 to 2023
$34.0M
The Phenomenology And Neurophysiology Of Juvenile Bipolar DisorderZIAMH002778 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI LEIBENLUFT, ELLEN · 2009 to 2017
$10.8M
The Phenomenology And Neurophysiology Of Juvenile Bipolar DisorderZ01MH002778 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI LEIBENLUFT, ELLEN · 2000 to 2008
$3.1M
Intramural NIH HHS Z01 MH002778Intramural NIH HHS ZIA MH002778
6 · The paper itself

Abstract

backgroundBipolar disorder (BD) is a severe mental disorder, characterized by prominent mood swings and emotion regulation (ER) deficits. The uncinate fasciculus (UF), a white matter tract connecting the amygdala and the ventral prefrontal cortex, has been implicated in ER. Aberrancies in UF microstructure may be an endophenotype associated with increased risk for BD. However, studies in individuals with BD and their first-degree relatives (REL) have yielded inconsistent findings. This meta-analysis takes a region-of-interest approach to consolidate the available evidence and elucidate the role of the UF in the risk-architecture of BD.

methodsUsing web-based search engines, we identified diffusion tensor imaging (DTI) studies focusing on the left and right UF and conducted meta-analyses comparing fractional anisotropy (FA) and radial diffusivity (RD) between BD or REL and healthy control participants (HC).

resultsWe included 32 studies (n

conclusionOur findings support aberrant UF microstructure, potentially related to alterations in myelination, as a mechanism, but not as an endophenotype of BD. However, given the limited power in the REL subsample, the latter finding must be considered preliminary. Studies examining the role of the UF in individuals at familial risk for BD are warranted.

Indexed as

Bipolar DisorderWhite MatterAnisotropyDiffusion Tensor ImagingHumansNerve NetUncinate FasciculusAt-risk relativesBipolar disorderEndophenotypeUncinate fasciculusWhite matter

Identifiers

PMID34699854
PMCPMC8631233
OpenAlexW3208426543

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.