Cited by 61Functional Brain Connectivity StudiesTreatment of Major DepressionNeural and Behavioral Psychology Studies

Functional Connectivity of Brain Structures Correlates with Treatment Outcome in Major Depressive Disorder

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Kozel, F. Andrew, Rao, Uma, Lu, Hanzhang, Nakonezny, Paul A., Grannemann, Bruce, McGregor, Tamara, Croarkin, Paul E., Mapes, Kimberly S. +2 more·2011·Frontiers in Psychiatry

Abstract

Identifying biosignatures to assess the probability of response to an antidepressant for patients with major depressive disorder (MDD) is critically needed. Functional connectivity MRI (fcMRI) offers the promise to provide such a measure. Previous work with fcMRI demonstrated that the correlation in signal from one region to another is a measure of functional connectivity. In this pilot work, a baseline non-task fcMRI was acquired in 14 adults with MDD who were free of all medications. Participants were then treated for 8 weeks with an antidepressant and then clinically re-evaluated. Probabilistic anatomic regions of interest (ROI) were defined for 16 brain regions (eight for each hemisphere) previously identified as being important in mood disorders. These ROIs were used to determine mean time courses for each individual's baseline non-task fcMRI. The correlations in time courses between 16 brain regions were calculated. These calculated correlations were considered to signify measures of functional connectivity. The degree of connectivity for each participant was correlated with treatment outcome. Among 13 participants with 8 weeks follow-up data, connectivity measures in several regions, especially the subcallosal cortex, were highly correlated with treatment outcome. These connectivity measures could provide a means to evaluate how likely a patient is to respond to an antidepressant treatment. Further work using larger samples is required to confirm these findings and to assess if measures of functional connectivity can be used to predict differential outcomes between antidepressant treatments.

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Authors
Kozel, F. A., Rao, U., Lu, H., Nakonezny, P. A., Grannemann, B., McGregor, T., Croarkin, P. E., Mapes, K. S., Tamminga, C. A., & Trivedi, M. H.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • Meharry Medical College (US)
Corresponding author
Kozel, F. Andrew
Venue
Frontiers in Psychiatry
Published
2011
Volume
2
Pages
7-7
ISSN
1664-0640 (ISSN-L)
OpenAlex
W2153012113
Cited by
61
References
52
Citations by year
2025: 3 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 6 · 2020: 6 · 2019: 4 · 2018: 3 · 2017: 5 · 2016: 3 · 2015: 4 · 2014: 7 · 2013: 5 · 2012: 4
FWCI
2.60
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Stanley Medical Research Institute
  • National Institutes of Health (MH084021)
  • National Institute of Mental Health (R01MH062464, R01MH068391, MH084021, K23MH070897, R01MH084021)
  • National Institute on Drug Abuse (R01DA015131, R01DA017804, R01DA014037, R01DA017805)
  • National Institute of Neurological Disorders and Stroke (R01NS067015)
  • National Center for Research Resources (G12RR003032, U54RR026140, UL1RR024982)
  • National Institute on Minority Health and Health Disparities (U54MD007593)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
major depressive disorder, functional connectivity, antidepressant response, treatment outcome prediction, biosignatures, subcallosal cortex, mood disorders

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