Cited by 132Advanced Neuroimaging Techniques and ApplicationsSuicide and Self-Harm StudiesTreatment of Major Depression

Impaired frontothalamic circuitry in suicidal patients with depression revealed by diffusion tensor imaging at 3.0 T

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Jia, Zhiyun, Wang, Yuqing, Huang, Xiaoqi, Kuang, Weihong, Wu, Qizhu, Lui, Su, Sweeney, John, Gong, Qiyong·2014·Journal of Psychiatry & Neuroscience

Abstract

BACKGROUND: The neurobiology of suicide is largely unknown. Studies of white matter tracts in patients with a history of suicidal behaviour have shown alteration in the left anterior limb of the internal capsule (ALIC). Our aim was to determine whether particular target fields of fibre projections through the ALIC are affected in depressed patients who recently attempted suicide. METHODS: We studied patients with major depressive disorder (MDD) with and without a history of suicide attempts and healthy controls using diffusion tensor imaging (DTI) and deterministic tractography to generate fibre tract maps for each participant. Tract voxels were coded as being unique to the left ALIC. We compared the mean percentage of fibres projecting to relevant brain regions in the 3 groups using analysis of covariance. RESULTS: We included 63 patients with MDD (23 with and 40 without a history of suicide attempts) and 46 controls in our study. Both groups of depressed patients had reduced fibre projections through the ALIC to the left medial frontal cortex, orbitofrontal cortex and thalamus. Those with a history of suicide attempts had greater abnormalities than those without suicide attempts in the left orbitofrontal cortex and thalamus. LIMITATIONS: Diffusion tensor imaging deterministic tracking is unable to distinguish between afferent and efferent pathways, limiting our ability to distinguish the directionality of altered fibre tracts. CONCLUSION: Frontothalamic loops passing through the ALIC are abnormal in patients with depression and significantly more abnormal in depressed patients with a history of suicide attempts than in those without a history of suicide attempts. Abnormal projections to the orbitofrontal cortex and thalamus may disrupt affective and cognitive functions to confer a heightened vulnerability for suicidal behaviour.

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  • In mood disorders, a prior suicide attempt is associated with lower fractional anisotropy in frontal-subcortical connections.

    “In mood disorders, a prior suicide attempt is associated with lower FA in frontal-subcortical connections (76-79).”

    From A brain-centric model of suicidal behavior (2020) · cites this paper as [76]

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  1. [26]Wang RBT, Sorensen AG, Wedeen VJ. Diffusion toolkit: a software package for diffusion imaging data processing and tractography. Proc Intl Soc Mag Reson Med. 2007;15:3720. [Google Scholar]

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Authors
Jia, Z., Wang, Y., Huang, X., Kuang, W., Wu, Q., Lui, S., Sweeney, J., & Gong, Q.
Affiliations
West China Hospital of Sichuan University (CN)
Venue
Journal of Psychiatry & Neuroscience
Published
2014-05-01
Volume
39
Issue
3
Pages
170-177
ISSN
1180-4882 (ISSN-L)
OpenAlex
W2023966843
Cited by
132
References
48
Citations by year
2026: 4 · 2025: 4 · 2024: 9 · 2023: 6 · 2022: 8 · 2021: 15 · 2020: 11 · 2019: 7 · 2018: 33 · 2017: 10 · 2016: 10 · 2015: 12 · 2014: 3
FWCI
9.07
Type
journal article
Language
en
Open access
Locations
  • Journal of Psychiatry and Neuroscience (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
suicide, major depressive disorder, white matter tracts, orbitofrontal cortex, thalamus, medial frontal cortex, suicidal behavior, deterministic tractography, suicide attempts
MeSH terms
Adult, Major Depressive Disorder, Female, Frontal Lobe, Humans, Male, Suicide, Attempted, Thalamus, Internal Capsule, Diffusion Tensor Imaging

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