Cited by 191Advanced Neuroimaging Techniques and ApplicationsTreatment of Major DepressionNeural and Behavioral Psychology Studies

Frontal white matter anisotropy and symptom severity of late-life depression: a magnetic resonance diffusion tensor imaging study

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Nobuhara, K·2006·Journal of Neurology, Neurosurgery & Psychiatry

Abstract

OBJECTIVES: To investigate the disruption of neural circuits in the frontal lobes and limbic structures in late-life depressed patients compared with healthy controls, and to examine the correlation between the degree of microstructural abnormalities of white matter and clinical symptom severity in late-life depression. METHODS: Thirteen patients with late-life depression and matched control subjects underwent diffusion tensor imaging. Fractional anisotropy (FA), an index of the integrity of white matter tracts, was determined in the white matter of frontal, temporal, and occipital brain regions and the corpus callosum. RESULTS: A significant reduction was found in white matter FA values of widespread regions of the frontal and temporal lobes of depressed patients. Also, there was some evidence suggesting that white matter FA values of the inferior frontal brain region are inversely related to severity of depression. CONCLUSIONS: These results suggest the possible loss of integrity within frontal and temporal white matter fibre tracts and implicate the orbitofrontal circuit in symptom severity in late-life depression.

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Crossref · 10.1136/jnnp.2004.055129

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  • Previous studies using diffusion imaging have demonstrated reduced fractional anisotropy in ACC and prefrontal white matter generally in depressed subjects.

    “Previous studies using diffusion imaging have demonstrated reduced fractional anisotropy in ACC and prefrontal white matter generally in depressed subjects (Taylor et al. 2004; Bae et al. 2006; Nobuhara et al. 2006); future studies using diffusion tractography should test the integrity of the specific tracts identified here in patients with mood disorders.”

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Authors
Nobuhara, K.
Affiliations
Kansai Medical University (JP)
Corresponding author
Nobuhara, K
Venue
Journal of Neurology, Neurosurgery & Psychiatry
Publisher
BMJ
Published
2006-01-01
Volume
77
Issue
1
Pages
120-122
ISSN
0022-3050 (ISSN-L)
OpenAlex
W2152674565
Cited by
191
References
18
Citations by year
2026: 4 · 2025: 6 · 2024: 4 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 6 · 2019: 5 · 2018: 11 · 2017: 11 · 2016: 6 · 2015: 5 · 2014: 14 · 2013: 13 · 2012: 22
FWCI
7.07
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Kansai University
  • Kansai Medical University
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 › Neural and Behavioral Psychology Studies
Keywords
geriatric depression, white matter integrity, fractional anisotropy, frontal lobe, temporal lobe, corpus callosum, depression severity
MeSH terms
Antidepressive Agents, Cognition Disorders, Major Depressive Disorder, Female, Frontal Lobe, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neuropsychological Tests, Severity of Illness Index, Anisotropy

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