Evidence map›Paper›PMID 30953566›Full record

ArticleSchizophrenia bulletin2019

Increased and Decreased Superficial White Matter Structural Connectivity in Schizophrenia and Bipolar Disorder.

Ellen Ji, Pamela Guevara, Miguel Guevara, Antoine Grigis, Nicole Labra, Samuel Sarrazin, Nora Hamdani, Frank Bellivier, Marine Delavest, Marion Leboyer and 4 more

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 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 5% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Widespread white matter microstructural abnormalities in bipolar disorder: evidence from mega- and meta-analyses across 3033 individuals.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019
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  17. Imaging of the superficial white matter in health and disease.Imaging neuroscience (Cambridge, Mass.) · 2024
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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 9 institutions in 2 countries.

Ellen JiINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
Pamela GuevaraFaculty of Engineering, Universidad de Concepción, Concepción, Chile.
Miguel GuevaraNeuroSpin CEA Saclay, Gif-sur-Yvette, France.
Antoine GrigisNeuroSpin CEA Saclay, Gif-sur-Yvette, France.
Nicole LabraNeuroSpin CEA Saclay, Gif-sur-Yvette, France.
Samuel SarrazinINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
Nora HamdaniINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
Frank BellivierAP-HP, GH Saint-Louis - Lariboisière - F. Widal, Département de Psychiatrie et de Médecine Additologique, INSERM UMR-S1144, Paris Diderot University, Paris, France.
Marine DelavestAP-HP, GH Saint-Louis - Lariboisière - F. Widal, Département de Psychiatrie et de Médecine Additologique, INSERM UMR-S1144, Paris Diderot University, Paris, France.
Marion LeboyerINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
Ryad TamouzaINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
Cyril PouponNeuroSpin CEA Saclay, Gif-sur-Yvette, France.
Jean-François ManginNeuroSpin CEA Saclay, Gif-sur-Yvette, France.
Josselin HouenouINSERM U955 Unit, Mondor Institute for Biomedical Research, Team 15 "Translational Psychiatry", Créteil, France.
CEA Paris-Saclay · FRCommissariat à l'Énergie Atomique et aux Énergies Alternatives · FRUniversité Paris-Est Créteil · FRAssistance Publique – Hôpitaux de Paris · FRDélégation Paris 7 · FRInserm · FRInstitut Mondor de Recherche Biomédicale · FRUniversité Paris Cité · FRUniversity of Concepción · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Schizophrenia (SZ) and bipolar disorder (BD) are often conceptualized as "disconnection syndromes," with substantial evidence of abnormalities in deep white matter tracts, forming the substrates of long-range connectivity, seen in both disorders. However, the study of superficial white matter (SWM) U-shaped short-range tracts remained challenging until recently, although findings from postmortem studies suggest they are likely integral components of SZ and BD neuropathology. This diffusion weighted imaging (DWI) study aimed to investigate SWM microstructure in vivo in both SZ and BD for the first time. We performed whole brain tractography in 31 people with SZ, 32 people with BD and 54 controls using BrainVISA and Connectomist 2.0. Segmentation and labeling of SWM tracts were performed using a novel, comprehensive U-fiber atlas. Analysis of covariances yielded significant generalized fractional anisotropy (gFA) differences for 17 SWM bundles in frontal, parietal, and temporal cortices. Post hoc analyses showed gFA reductions in both patient groups as compared with controls in bundles connecting regions involved in language processing, mood regulation, working memory, and motor function (pars opercularis, insula, anterior cingulate, precentral gyrus). We also found increased gFA in SZ patients in areas overlapping the default mode network (inferior parietal, middle temporal, precuneus), supporting functional hyperconnectivity of this network evidenced in SZ. We thus illustrate that short U-fibers are vulnerable to the pathological processes in major psychiatric illnesses, encouraging improved understanding of their anatomy and function.

Indexed as

Diffusion Tensor ImagingAdultAffectAnisotropyBipolar DisorderBroca AreaCase-Control StudiesCerebral CortexFemaleFrontal LobeGyrus CinguliHumansLanguageMagnetic Resonance ImagingMaleMemory, Short-Termdiffusion weighted imagingneuroimagingtractography

Identifiers

PMID30953566
PMCPMC6811818
OpenAlexW2951262416

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.