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Co-alteration Network Architecture of Major Depressive Disorder: A Multi-modal Neuroimaging Assessment of Large-scale Disease Effects

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Abstract

Major depressive disorder (MDD) exhibits diverse symptomology and neuroimaging studies report widespread disruption of key brain areas. Numerous theories underpinning the network degeneration hypothesis (NDH) posit that neuropsychiatric diseases selectively target brain areas via meaningful network mechanisms rather than as indistinct disease effects. The present study tests the hypothesis that MDD is a network-based disorder, both structurally and functionally. Coordinate-based meta-analysis and Activation Likelihood Estimation (CBMA-ALE) were used to assess the convergence of findings from 92 previously published studies in depression. An extension of CBMA-ALE was then used to generate a node-and-edge network model representing the co-alteration of brain areas impacted by MDD. Standardized measures of graph theoretical network architecture were assessed. Co-alteration patterns among the meta-analytic MDD nodes were then tested in independent, clinical T1-weighted structural magnetic resonance imaging (MRI) and resting-state functional (rs-fMRI) data. Differences in co-alteration profiles between MDD patients and healthy controls, as well as between controls and clinical subgroups of MDD patients, were assessed. A 65-node 144-edge co-alteration network model was derived for MDD. Testing of co-alteration profiles in replication data using the MDD nodes provided distinction between MDD and healthy controls in structural data. However, co-alteration profiles were not distinguished between patients and controls in rs-fMRI data. Improved distinction between patients and healthy controls was observed in clinically homogenous MDD subgroups in T1 data. MDD abnormalities demonstrated both structural and functional network architecture, though only structural networks exhibited between-groups differences. Our findings suggest improved utility of structural co-alteration networks for ongoing biomarker development.

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Abbreviations

MDD:

Major depressive disorder

NDH:

Network degeneration hypothesis

CBMA:

Coordinate-based meta-analysis

ALE:

Activation Likelihood Estimation

CBMA-ALE:

Coordinate-based meta-analysis Activation Likelihood Estimation

MRI:

Magnetic resonance imaging

rs-fMRI:

Resting-state functional magnetic resonance imaging

T1:

Structural weighted magnetic resonance imaging

VBM:

Voxel-based morphometry

VBP:

Voxel-based pathophysiology

ALFF:

Amplitude of low frequency fluctuations

ReHo:

Regional homogeneity

ASL:

Arterial spin labeling

PET:

Positron emission tomography

SPECT:

Single photon emission tomography

ROI:

Region of interest

GOBS:

Genetics of Brain Structure Study

MDDall:

All GOBS patients in heterogenous clinical grouping

MDD + comorbid:

MDD patients with psychiatric comorbidity

MDDonly:

MDD patients without psychiatric comorbidity

MDDrecurrent:

MDD patients with recurrent episodes of depression

MDDfirst:

MDD patients with only one reported episode of depression

FSL:

Software name for functional, structural, and diffusion image processing tools

FSL-VBM:

FSL’s voxel-based morphometry processing tool

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Funding

This work was supported by grants from National Institute of Mental Health (R01-MH074457-14) and the U.S. Department of Defense (ISG/W81XWH1320065).

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Contributions

JPG carried out all data analysis and drafted the manuscript. JM and AAB participated in study design and statistical analysis. CL and CF participated in analysis of primary data cohorts and statistical analysis. FC and TC participated in statistical analysis. KSC, JB, DCG, HSM, provided and participated in analysis of primary data cohorts. PTF participated in study design. All authors participated in revision and approval of the final manuscript.

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Correspondence to Jodie P. Gray.

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All authors report no financial or non-financial interests related directly or indirectly to this submission.

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Gray, J.P., Manuello, J., Alexander-Bloch, A.F. et al. Co-alteration Network Architecture of Major Depressive Disorder: A Multi-modal Neuroimaging Assessment of Large-scale Disease Effects. Neuroinform 21, 443–455 (2023). https://doi.org/10.1007/s12021-022-09614-2

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  • DOI: https://doi.org/10.1007/s12021-022-09614-2

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