Evidence map›Paper›PMID 29981196›Full record

ArticleBipolar disorders2018

Neurodevelopmental subtypes of bipolar disorder are related to cortical folding patterns: An international multicenter study.

Samuel Sarrazin, Arnaud Cachia, Franz Hozer, Colm McDonald, Louise Emsell, Dara M Cannon, Michele Wessa, Julia Linke, Amelia Versace, Nora Hamdani and 10 more

Abstract readMulticenter Study
In one paragraph

Article in Bipolar disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Reduced prefrontal total choline MRS levels characterize the neurodevelopmental phenotype of bipolar disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
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

20 authors.

Samuel SarrazinAPHP, DHU PePSY, Pôle de psychiatrie et d'addictologie des Hôpitaux Universitaires Henri Mondor, Créteil, France.
Arnaud CachiaImaging Biomarkers for Brain Development and Disorders, UMR INSERM 894, Université Paris Descartes, Paris, France.
Franz HozerLab. UNIACT, NeuroSpin, CEA, Gif-sur-Yvette, France.
Colm McDonaldCentre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland.
Louise EmsellOld Age Psychiatry, University Psychiatric Centre (UPC)-KU Leuven, Leuven, Belgium.
Dara M CannonCentre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland.
Michele WessaDepartment of Neuropsychology and Clinical Psychology, Psychological Institute, Johannes-Gutenberg University of Mainz, Mainz, Germany.
Julia LinkeDepartment of Neuropsychology and Clinical Psychology, Psychological Institute, Johannes-Gutenberg University of Mainz, Mainz, Germany.
Amelia VersaceDepartment of Psychiatry, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA, USA.
Nora HamdaniAPHP, DHU PePSY, Pôle de psychiatrie et d'addictologie des Hôpitaux Universitaires Henri Mondor, Créteil, France.
Marc-Antoine D'AlbisAPHP, DHU PePSY, Pôle de psychiatrie et d'addictologie des Hôpitaux Universitaires Henri Mondor, Créteil, France.
Marine DelavestAPHP, Service de Psychiatrie, Hôpital Lariboisiere Fernand Widal, INSERM U 705 CNRS UMR 8206, Paris Diderot University, Paris, France.
Mary L PhillipsDepartment of Psychiatry, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA, USA.
Paolo BrambillaDepartment of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy.
Marcella BellaniSection of Psychiatry, AOUI Verona/Department of Neurosciences, Biomedicine and Movement Sciences/University of Verona, Verona, Italy.
Mircea PolosanUniversité Grenoble Alpes, Inserm U1216 Grenoble Institute of Neuroscience, CHU Grenoble Alpes, Grenoble, France.
Pauline FavreLab. UNIACT, NeuroSpin, CEA, Gif-sur-Yvette, France.
Marion LeboyerAPHP, DHU PePSY, Pôle de psychiatrie et d'addictologie des Hôpitaux Universitaires Henri Mondor, Créteil, France.
Jean-François ManginLab. UNATI, NeuroSpin, CEA, Gif-sur-Yvette, France.
Josselin HouenouAPHP, DHU PePSY, Pôle de psychiatrie et d'addictologie des Hôpitaux Universitaires Henri Mondor, Créteil, France.ORCID 0000-0003-3166-5606

Funding

Toward the identification of biomarkers of bipolar disorderR01MH076971 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI PHILLIPS, MARY LOUISE · 2007 to 2011
$2.1M
NIMH NIH HHS R01 MH076971
6 · The paper itself

Abstract

objectivesBrain sulcation is an indirect marker of neurodevelopmental processes. Studies of the cortical sulcation in bipolar disorder have yielded mixed results, probably due to high variability in clinical phenotype. We investigated whole-brain cortical sulcation in a large sample of selected patients with high neurodevelopmental load.

methodsA total of 263 patients with bipolar disorder I and 320 controls were included in a multicentric magnetic resonance imaging (MRI) study. All subjects underwent high-resolution T1-weighted brain MRI. Images were processed with an automatized pipeline to extract the global sulcal index (g-SI) and the local sulcal indices (l-SIs) from 12 a priori determined brain regions covering the whole brain. We compared l-SI and g-SI between patients with and without early-onset bipolar disorder and between patients with and without a positive history of psychosis, adjusting for age, gender and handedness.

resultsPatients with early-onset bipolar disorder had a higher l-SI in the right prefrontal dorsolateral region. Patients with psychotic bipolar disorder had a decreased l-SI in the left superior parietal cortex. No group differences in g-SI or l-SI were found between healthy subjects and the whole patient cohort. We could replicate the early-onset finding in an independent cohort.

conclusionsOur work suggests that bipolar disorder is not associated with generalized abnormalities of sulcation, but rather with localized changes of cortical folding restricted to patients with a heavy neurodevelopmental loading. These findings support the hypothesis that bipolar disorder is heterogeneous but may be disentangled using MRI, and suggest the need for investigations into neurodevelopmental deviations in the disorder.

Indexed as

AdultBipolar DisorderBrainBrain MappingCase-Control StudiesFemaleFunctional LateralityHumansMagnetic Resonance ImagingMaleParietal LobePrefrontal CortexPsychotic Disordersbipolar disorderearly-onsetmagnetic resonance imagingneurodevelopmentpsychosissulcation

Identifiers

PMID29981196
PMCPMC6516086

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.