Cited by 35Suicide and Self-Harm StudiesNeural and Behavioral Psychology StudiesTreatment of Major Depression

Gray matter volumetric study of major depression and suicidal behavior

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Rizk, Mina M., Rubin-Falcone, Harry, Lin, Xuejing, Keilp, John G., Miller, Jeffrey M., Milak, Matthew S., Sublette, M. Elizabeth, Oquendo, Maria A. +4 more·2019·Psychiatry Research: Neuroimaging

Abstract

Structural brain deficits are linked to risk for suicidal behavior. However, there is disagreement about the nature of these deficits, probably due to the heterogeneity of suicidal behavior in terms of the suicidal act's lethality. We hypothesized that individuals with major depressive disorder (MDD) and history of more lethal suicide attempts would have lower gray matter volume (GMV) of the prefrontal regions and insula compared with MDD lower-lethality attempters and MDD non-attempters. We collected structural MRI scans on 91 individuals with MDD; 11 with history of higher-lethality suicide attempts, 14 with lower-lethality attempts, and 66 were non-attempters. Differences in GMV between these three groups were examined using both regions-of-interest (ROI) and brain-wide voxel-based morphometry (VBM) analyses. Both ROI and VBM analyses showed that higher-lethality suicide attempters have greater GMV of the prefrontal cortical regions and insula, compared with the other two groups. Although this contrasts with our hypothesis, the observed larger prefrontal cortex GMV in higher-lethality suicide attempters may underlie the set of attributes observed previously in this suicidal subgroup, including enhanced suicide attempt planning, greater response inhibition, and delayed reward capabilities. Future studies should further examine the role of these brain regions in relation to suicidal intent and planning.

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Crossref · 10.1016/j.pscychresns.2018.11.007

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  • Higher-lethality suicide attempters have larger PFC and insula volumes than lower-lethality attempters and nonattempters.

    “Higher-lethality suicide attempters have larger PFC and insula volumes compared with lower-lethality attempters and nonattempters (73), potentially related to superior planning abilities.”

    From A brain-centric model of suicidal behavior (2020) · cites this paper as [73]

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Research works printed but not linked: 1

  1. Lee YJ, Kim S, Gwak AR, Kim SJ, Kang SG, Na KS,, 2016b Decreased regional gray matter volume in suicide attempters compared to suicide non-attempters with major depressive disorders. Compr Psychiatry 67, 59– 65. 27095336

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Authors
Rizk, M. M., Rubin-Falcone, H., Lin, X., Keilp, J. G., Miller, J. M., Milak, M. S., Sublette, M. E., Oquendo, M. A., Ogden, R. T., Abdelfadeel, N. A., Abdelhameed, M. A., & Mann, J. J.
Affiliations
  • New York State Psychiatric Institute (US)
  • Columbia University (US)
  • Minia University (EG)
Corresponding author
Rizk, Mina M.
Venue
Psychiatry Research: Neuroimaging
Publisher
Elsevier BV
Published
2019-01
Volume
283
Pages
16-23
ISSN
0925-4927 (ISSN-L)
OpenAlex
W2901006907
Cited by
35
References
80
Citations by year
2026: 7 · 2025: 4 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 2 · 2020: 8 · 2019: 3
FWCI
3.81
Type
journal article
Language
en
Open access
Locations
  • Psychiatry Research Neuroimaging (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (P50 MH090964, P50 MH062185, R01 MH040695, R01 MH093637, K08 MH079033, K08 MH085061)
  • Egyptian Cultural and Educational Bureau, Embassy of Egypt, Washington, DC
Topics
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
major depressive disorder, suicidal behavior, suicide attempts, gray matter volume, prefrontal cortex, insula, suicide attempt lethality, suicidal intent, response inhibition
MeSH terms
Adolescent, Adult, Major Depressive Disorder, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Organ Size, Reward, Suicide, Attempted, Prefrontal Cortex, Young Adult, Suicidal Ideation, Gray Matter

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