Cited by 205Advanced Neuroimaging Techniques and ApplicationsTreatment of Major DepressionFunctional Brain Connectivity Studies

Loss of white matter integrity in major depressive disorder: evidence using tract-based spatial statistical analysis of diffusion tensor imaging

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Korgaonkar, Mayuresh S., Grieve, Stuart M., Koslow, Stephen H., Gabrieli, John D.E., Gordon, Evian, Williams, Leanne M.·2011·Human Brain Mapping

Abstract

White matter (WM) has been shown to be affected in elderly patients with major depressive disorders (MDD). There is only limited evidence of WM structural abnormalities in nongeriatric MDD patients. This study investigates WM microstructural integrity in nongeriatric MDD patients recruited as part of the International Study to Predict Optimized Treatment in Depression clinical trial and establishes the validity of diffusion tensor imaging measures for the investigation of depression. Baseline diffusion tensor imaging data from 29 nongeriatric MDD participants (11 with melancholia) and 39 healthy control participants were used in this analysis. We performed tract-based spatial statistics analyses to evaluate WM microstructural integrity (1) between all healthy controls and all MDD participants, (2) between melancholic and nonmelancholic MDD participants, and (3) between each subgroup (melancholic and nonmelancholic) and controls. Significant WM integrity deficits were seen only for the melancholic MDD participants compared with controls. Compared with controls, melancholic participants showed an average reduction of 7.8% in fractional anisotropy over WM regions associated with the limbic system, dorsolateral prefrontal cortex, thalamic projection fibers, corpus callosum, and other association fibers. These fractional anisotropy deficits were also associated with decreased axial and increased radial diffusivity in these WM regions, suggesting a pattern of decreased myelination or other degeneration change. Our findings of WM structural abnormalities associated with the limbic system, the frontal cortex, and the thalamus support the prevailing theory of limbic-dorsolateral prefrontal cortex-thalamic dysfunction in depression. Our results also suggest that these deficits are most prominent in the melancholic subtype of MDD.

Integrity signals

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Crossref · 10.1002/hbm.21178

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Authors
Korgaonkar, M. S., Grieve, S. M., Koslow, S. H., Gabrieli, J. D. E., Gordon, E., & Williams, L. M.
Affiliations
  • The University of Sydney (AU)
  • American Foundation for Suicide Prevention (US)
  • Massachusetts Institute of Technology (US)
Venue
Human Brain Mapping
Publisher
Wiley
Published
2010-12-17
Volume
32
Issue
12
Pages
2161-2171
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W2064383989
Cited by
205
References
61
Citations by year
2026: 2 · 2025: 8 · 2024: 8 · 2023: 9 · 2022: 17 · 2021: 12 · 2020: 9 · 2019: 10 · 2018: 13 · 2017: 18 · 2016: 12 · 2015: 17 · 2014: 24 · 2013: 15 · 2012: 22
FWCI
11.69
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
major depressive disorder, white matter integrity, endogenous depression, fractional anisotropy, diffusion tensor imaging, tract-based spatial statistics, limbic system, dorsolateral prefrontal cortex, thalamus, corpus callosum, myelination, axial and radial diffusivity, structural brain abnormalities
MeSH terms
Adolescent, Adult, Aged, Brain, Brain Mapping, Major Depressive Disorder, Female, Humans, Image Interpretation, Computer-Assisted, Male, Middle Aged, Young Adult, Diffusion Tensor Imaging

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