Evidence map›Paper›PMID 23036958›Full record

ArticleBiological psychiatry2013

Abnormal temporal lobe white matter as a biomarker for genetic risk of bipolar disorder.

Katie Mahon, Katherine E Burdick, Toshikazu Ikuta, Raphael J Braga, Patricia Gruner, Anil K Malhotra, Philip R Szeszko

Abstract read
In one paragraph

Article in Biological psychiatry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
4.7field-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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  4. Replicable association between human cytomegalovirus infection and reduced white matter fractional anisotropy in major depressive disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Katie MahonDepartment of Psychiatry and Neuroscience, Mount Sinai School of Medicine, 1 Gustave L. Levy Place, Box 1230, New York, NY 10029, USA. katie.mahon@mssm.edu
Katherine E Burdick
Toshikazu Ikuta
Raphael J Braga
Patricia Gruner
Anil K Malhotra
Philip R Szeszko
Hofstra University · USZucker Hillside Hospital · USAllen Institute for Brain Science · USNorthwell Health · US

Funding

WHITE MATTER STRUCTURAL DEFICITS IN HIGH FUNCTIONING CHILDREN WITH AUTISM SPEM01RR018535 · NCRR · FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH · PI MATTIS, PAUL · 2003 to 2010
$19.5M
Striatal D2/D3 Dopamine receptor availability in first episode schizophreniaP50MH080173 · NIMH · FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH · PI SMITH, GWENN S · 2008 to 2012
$10.4M
Research Training in Functional Disability InterventionsT32MH062994 · NIMH · YALE UNIVERSITY · PI BELL, MORRIS D. · 2002 to 2017
$3.0M
Diffusion Tensor Imaging in First-Episode SchizophreniaR01MH076995 · NIMH · FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH · PI SZESZKO, PHILIP R · 2007 to 2010
$1.2M
Neurocognition as an endophenotype in bipolar disorderK23MH077807 · NIMH · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BURDICK, KATHERINE ELIZABETH · 2008 to 2012
$774k
NCRR NIH HHS M01 RR018535NIMH NIH HHS K23 MH077807NIMH NIH HHS P50 MH080173NIMH NIH HHS R01 MH076995NIMH NIH HHS T32 MH062994
6 · The paper itself

Abstract

backgroundBrain white matter (WM) abnormalities have been hypothesized to play an important role in the neurobiology of bipolar disorder (BD). The nature of these abnormalities is not well-characterized, however, and it is unknown whether they occur after disease onset or represent potential markers of genetic risk.

methodsWe examined WM integrity (assessed via fractional anisotropy [FA]) with diffusion tensor imaging in patients with BD (n=26), unaffected siblings of patients with BD (n=15), and healthy volunteers (n=27) to identify WM biomarkers of genetic risk.

resultsThe FA differed significantly (p<.05; corrected) among the three groups within the right temporal WM. Unaffected siblings had FA values that were intermediate to and significantly different from those of healthy volunteers and patients with BD (healthy control subjects>unaffected siblings>BD). Moreover, FA values in this region correlated negatively and significantly with trait impulsivity in unaffected siblings. Probabilistic tractography indicated that the regional abnormality lies along the inferior fronto-occipital fasciculus, a large intrahemispheric association pathway.

conclusionsOur results suggest that lower WM integrity in the right temporal lobe might be a biomarker for genetic risk of BD. It is conceivable that the attenuated nature of these WM abnormalities present in unaffected siblings allows for some preservation of adaptive emotional regulation, whereas more pronounced alterations observed in patients is related to the marked emotional dysregulation characteristic of BD.

Indexed as

EndophenotypesAdultAnisotropyBipolar DisorderCase-Control StudiesDiffusion Tensor ImagingFemaleGenetic Predisposition to DiseaseHumansImage Processing, Computer-AssistedImpulsive BehaviorMaleNerve Fibers, MyelinatedNeural PathwaysNeuroimagingSiblings

Identifiers

PMID23036958
PMCPMC3760506
OpenAlexW1980532052

What OpenQuestion holds

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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.