Abstract
BACKGROUND: Cognitive dysfunction and brain structural connectivity alterations have been observed in major depressive disorder (MDD). However, little is known about their interrelation. The present study follows a network approach to evaluate alterations in cognition-related brain structural networks.
METHODS: Cognitive performance of n = 805 healthy and n = 679 acutely depressed or remitted individuals was assessed using 14 cognitive tests aggregated into cognitive factors. The structural connectome was reconstructed from structural and diffusion-weighted magnetic resonance imaging. Associations between global connectivity strength and cognitive factors were established using linear regressions. Network-based statistics were applied to identify subnetworks of connections underlying these global-level associations. In exploratory analyses, effects of depression were assessed by evaluating remission status-related group differences in subnetwork-specific connectivity. Partial correlations were employed to directly test the complete triad of cognitive factors, depressive symptom severity, and subnetwork-specific connectivity strength.
RESULTS: All cognitive factors were associated with global connectivity strength. For each cognitive factor, network-based statistics identified a subnetwork of connections, revealing, for example, a subnetwork positively associated with processing speed. Within that subnetwork, acutely depressed patients showed significantly reduced connectivity strength compared to healthy controls. Moreover, connectivity strength in that subnetwork was associated to current depressive symptom severity independent of the previous disease course.
CONCLUSIONS: Our study is the first to identify cognition-related structural brain networks in MDD patients, thereby revealing associations between cognitive deficits, depressive symptoms, and reduced structural connectivity. This supports the hypothesis that structural connectome alterations may mediate the association of cognitive deficits and depression severity.
Original language | English |
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Pages (from-to) | 6611-6622 |
Number of pages | 12 |
Journal | Psychological Medicine |
Volume | 53 |
Issue number | 14 |
Early online date | 8 Feb 2023 |
DOIs | |
Publication status | Published - Oct 2023 |
Bibliographical note
Funding Information:This work was funded by the German Research Foundation (DFG, grant FOR2107 DA1151/5-1 and DA1151/5-2 to UD; SFB-TRR58, Projects C09 and Z02 to UD), the Interdisciplinary Center for Clinical Research (IZKF) of the medical faculty of Münster (grant Dan3/012/17 to UD), IMF Münster RE111604 to RR und RE111722 to RR, IMF Münster RE 22 17 07 to Jonathan Repple and the Deanery of the Medical Faculty of the University of Münster. The FOR2107 cohort project (WP1) was approved by the Ethics Committees of the Medical Faculties, University of Marburg (AZ: 07/14) and University of Münster (AZ: 2014-422-b-S). TH was supported by the German Research Foundation (DFG grants HA7070/2-2, HA7070/3, HA7070/4). MP was supported by an ERC Consolidator grant (ERC-COG 101001062) and a NWO VIDI grant of the Dutch Research Council (Netherlands Organisation for Scientific Research Grant VIDI-452-16-015).
Funding Information:
This work is part of the German multicenter consortium 'Neurobiology of Affective Disorders. A translational perspective on brain structure and function , funded by the German Research Foundation (Deutsche Forschungsgemeinschaft DFG; Forschungsgruppe/Research Unit FOR2107). Principal investigators (PIs) with respective areas of responsibility in the FOR2107 consortium are: Work Package WP1, FOR2107/MACS cohort and brainimaging: Tilo Kircher (speaker FOR2107; DFG grant numbers KI 588/14-1, KI 588/14-2), Udo Dannlowski (co-speaker FOR2107; DA 1151/ 5-1, DA 1151/5-2), Axel Krug (KR 3822/5-1, KR 3822/7-2), Igor Nenadic (NE 2254/1-2), Carsten Konrad (KO 4291/3-1). CP1, biobank: Petra Pfefferle (PF 784/1-1, PF 784/1-2), Harald Renz (RE 737/20-1, 737/20-2). CP2, administration. Tilo Kircher (KI 588/15-1, KI 588/17-1), Udo Dannlowski (DA 1151/6-1), Carsten Konrad (KO 4291/4-1). Martijn van den Heuvel was supported by an ALW open (ALWOP.179) and VIDI (452-16-015) grant from the Netherlands Organization for Scientific Research (NWO) and a Fellowship of MQ. This work was funded by the German Research Foundation (DFG, grant FOR2107 DA1151/5-1 and DA1151/5-2 to UD; SFB-TRR58, Projects C09 and Z02 to UD), the Interdisciplinary Center for Clinical Research (IZKF) of the medical faculty of Münster (grant Dan3/ 012/17 to UD), IMF Münster RE111604 to RR und RE111722 to RR, IMF Münster RE 22 17 07 to Jonathan Repple and the Deanery of the Medical Faculty of the University of Münster. The FOR2107 cohort project (WP1) was approved by the Ethics Committees of the Medical Faculties, University of Marburg (AZ: 07/14) and University of Münster (AZ: 2014-422-b-S). TH was supported by the German Research Foundation (DFG grants HA7070/ 2-2, HA7070/3, HA7070/4). MP was supported by an ERC Consolidator grant (ERC-COG 101001062) and a NWO VIDI grant of the Dutch Research Council (Netherlands Organisation for Scientific Research Grant VIDI-452-16-015).
Funding Information:
Tilo Kircher received unrestricted educational grants from Servier, Janssen, Recordati, Aristo, Otsuka, neuraxpharm. Markus Wöhr is a scientific advisor of Avisoft Bioacoustics. This cooperation has no relevance to the work that is covered in the manuscript. The other authors declare no financial interests or competing interests.
Funding Information:
This work is part of the German multicenter consortium ‘Neurobiology of Affective Disorders. A translational perspective on brain structure and function’, funded by the German Research Foundation (Deutsche Forschungsgemeinschaft DFG; Forschungsgruppe/Research Unit FOR2107). Principal investigators (PIs) with respective areas of responsibility in the FOR2107 consortium are: Work Package WP1, FOR2107/MACS cohort and brainimaging: Tilo Kircher (speaker FOR2107; DFG grant numbers KI 588/14-1, KI 588/14-2), Udo Dannlowski (co-speaker FOR2107; DA 1151/5-1, DA 1151/5-2), Axel Krug (KR 3822/5-1, KR 3822/7-2), Igor Nenadic (NE 2254/1-2), Carsten Konrad (KO 4291/3-1). CP1, biobank: Petra Pfefferle (PF 784/1-1, PF 784/1-2), Harald Renz (RE 737/20-1, 737/20-2). CP2, administration. Tilo Kircher (KI 588/15-1, KI 588/17-1), Udo Dannlowski (DA 1151/6-1), Carsten Konrad (KO 4291/4-1). Martijn van den Heuvel was supported by an ALW open (ALWOP.179) and VIDI (452-16-015) grant from the Netherlands Organization for Scientific Research (NWO) and a Fellowship of MQ.
Publisher Copyright:
© The Author(s), 2023.
Funding
This work was funded by the German Research Foundation (DFG, grant FOR2107 DA1151/5-1 and DA1151/5-2 to UD; SFB-TRR58, Projects C09 and Z02 to UD), the Interdisciplinary Center for Clinical Research (IZKF) of the medical faculty of Münster (grant Dan3/012/17 to UD), IMF Münster RE111604 to RR und RE111722 to RR, IMF Münster RE 22 17 07 to Jonathan Repple and the Deanery of the Medical Faculty of the University of Münster. The FOR2107 cohort project (WP1) was approved by the Ethics Committees of the Medical Faculties, University of Marburg (AZ: 07/14) and University of Münster (AZ: 2014-422-b-S). TH was supported by the German Research Foundation (DFG grants HA7070/2-2, HA7070/3, HA7070/4). MP was supported by an ERC Consolidator grant (ERC-COG 101001062) and a NWO VIDI grant of the Dutch Research Council (Netherlands Organisation for Scientific Research Grant VIDI-452-16-015). This work is part of the German multicenter consortium 'Neurobiology of Affective Disorders. A translational perspective on brain structure and function , funded by the German Research Foundation (Deutsche Forschungsgemeinschaft DFG; Forschungsgruppe/Research Unit FOR2107). Principal investigators (PIs) with respective areas of responsibility in the FOR2107 consortium are: Work Package WP1, FOR2107/MACS cohort and brainimaging: Tilo Kircher (speaker FOR2107; DFG grant numbers KI 588/14-1, KI 588/14-2), Udo Dannlowski (co-speaker FOR2107; DA 1151/ 5-1, DA 1151/5-2), Axel Krug (KR 3822/5-1, KR 3822/7-2), Igor Nenadic (NE 2254/1-2), Carsten Konrad (KO 4291/3-1). CP1, biobank: Petra Pfefferle (PF 784/1-1, PF 784/1-2), Harald Renz (RE 737/20-1, 737/20-2). CP2, administration. Tilo Kircher (KI 588/15-1, KI 588/17-1), Udo Dannlowski (DA 1151/6-1), Carsten Konrad (KO 4291/4-1). Martijn van den Heuvel was supported by an ALW open (ALWOP.179) and VIDI (452-16-015) grant from the Netherlands Organization for Scientific Research (NWO) and a Fellowship of MQ. This work was funded by the German Research Foundation (DFG, grant FOR2107 DA1151/5-1 and DA1151/5-2 to UD; SFB-TRR58, Projects C09 and Z02 to UD), the Interdisciplinary Center for Clinical Research (IZKF) of the medical faculty of Münster (grant Dan3/ 012/17 to UD), IMF Münster RE111604 to RR und RE111722 to RR, IMF Münster RE 22 17 07 to Jonathan Repple and the Deanery of the Medical Faculty of the University of Münster. The FOR2107 cohort project (WP1) was approved by the Ethics Committees of the Medical Faculties, University of Marburg (AZ: 07/14) and University of Münster (AZ: 2014-422-b-S). TH was supported by the German Research Foundation (DFG grants HA7070/ 2-2, HA7070/3, HA7070/4). MP was supported by an ERC Consolidator grant (ERC-COG 101001062) and a NWO VIDI grant of the Dutch Research Council (Netherlands Organisation for Scientific Research Grant VIDI-452-16-015). Tilo Kircher received unrestricted educational grants from Servier, Janssen, Recordati, Aristo, Otsuka, neuraxpharm. Markus Wöhr is a scientific advisor of Avisoft Bioacoustics. This cooperation has no relevance to the work that is covered in the manuscript. The other authors declare no financial interests or competing interests. This work is part of the German multicenter consortium ‘Neurobiology of Affective Disorders. A translational perspective on brain structure and function’, funded by the German Research Foundation (Deutsche Forschungsgemeinschaft DFG; Forschungsgruppe/Research Unit FOR2107). Principal investigators (PIs) with respective areas of responsibility in the FOR2107 consortium are: Work Package WP1, FOR2107/MACS cohort and brainimaging: Tilo Kircher (speaker FOR2107; DFG grant numbers KI 588/14-1, KI 588/14-2), Udo Dannlowski (co-speaker FOR2107; DA 1151/5-1, DA 1151/5-2), Axel Krug (KR 3822/5-1, KR 3822/7-2), Igor Nenadic (NE 2254/1-2), Carsten Konrad (KO 4291/3-1). CP1, biobank: Petra Pfefferle (PF 784/1-1, PF 784/1-2), Harald Renz (RE 737/20-1, 737/20-2). CP2, administration. Tilo Kircher (KI 588/15-1, KI 588/17-1), Udo Dannlowski (DA 1151/6-1), Carsten Konrad (KO 4291/4-1). Martijn van den Heuvel was supported by an ALW open (ALWOP.179) and VIDI (452-16-015) grant from the Netherlands Organization for Scientific Research (NWO) and a Fellowship of MQ.
Funders | Funder number |
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Carsten Konrad | KO 4291/4-1 |
Harald Renz | 737/20-2, KI 588/17-1, RE 737/20-1, KI 588/15-1, DA 1151/6-1 |
International Myeloma Foundation | RE111604, RE 22 17 07, RE111722 |
International Myeloma Foundation | |
Janssen Pharmaceutica | |
Philipps-Universität Marburg | 07/14 |
Philipps-Universität Marburg | |
Deutsche Forschungsgemeinschaft | FOR2107, 452-16-015 |
Deutsche Forschungsgemeinschaft | |
Nederlandse Organisatie voor Wetenschappelijk Onderzoek | DA1151/5-2, SFB-TRR58, FOR2107 DA1151/5-1, VIDI-452-16-015 |
Nederlandse Organisatie voor Wetenschappelijk Onderzoek | |
Westfälische Wilhelms-Universität Münster | HA7070/4, ERC-COG 101001062, HA7070/2-2, HA7070/3 |
Westfälische Wilhelms-Universität Münster | |
Medizinische Fakultät, Westfälische Wilhelms-Universität Münster | Dan3/012/17 |
Medizinische Fakultät, Westfälische Wilhelms-Universität Münster | |
Interdisziplinäres Zentrum für Klinische Forschung, Universitätsklinikum Würzburg | |
Servier |
Keywords
- cognitive performance
- connectomics
- depressive symptoms
- graph theory
- processing speed
- tractography