Cited by 56Functional Brain Connectivity StudiesTreatment of Major DepressionMental Health Research Topics

Abnormal functional connectivity strength in first-episode, drug-naive adult patients with major depressive disorder

Shi, Yushu, Li, Jing, Feng, Zhan, Xie, Haiyan, Duan, Jinfeng, Chen, Feng, Yang, Hong·2020·Progress in Neuro-Psychopharmacology and Biological Psychiatry

Abstract

Background The pathogenesis of major depressive disorder (MDD) is complicated and equivocal. Previous studies have found an incidence of abnormal changes of neural networks, with plentiful evidence pointing the finger of suspicion firmly at the default mode network (DMN) and cortico-limbic networks. The aim of the present study was to use the approach of functional connectivity strength (FCS) to directly investigate the features of spontaneous brain activity in the case of first-episode, drug-naïve adult patients with MDD at rest.Methods Resting-state functional magnetic resonance imaging (MRI) scans were performed on 23 first-episode drug-naïve major depressive disorder (MDD) patients and 20 healthy controls (HCs). In this study, using graph-theory approaches(FCS), we computed the characteristics of brain connectivity. Simultaneously, we used a series of validated test procedures to evaluate the patients' cognitive function. Subsequently, the results were compared with the peak of FCS value and a correlation analysis was conducted.Results Compared with the HCs group, MDD patients showed significantly decreased FCS in bilateral posterior cingulate cortex (PCC)/precuneus and bilateral prefrontal cortex(PFC) and increased FCS in right posterior central gyrus, left thalamus and left temporal lobe. These brain regions belongs to the default-mode network and cortico-limbic networks. Finally, the correlation analyses showed the negative correlation of the FCS values in the left posterior cingulate cortex (PCC)/precuneus and Hamilton Anxiety Rating Scale (HAMA, r = -0.472, p = .023), Stroop Color Word Test-A(SCWT-A, r = -0.451, p = .031), Stroop Color Word Test-B(SCWT-B, r = -0.588, p = .003).Meanwhile, there was negative correlation between the FCS values in the left thalamus and SCWT-A(r = -0.473, p = .023), SCWT-B(r = -0.465, p = .025), SCWTC(r = -0.524, p = .010).In addition, the FCS values in the right PCC has negative correlation with Montgomery Asberg Depression Rating Scale (MADRS) (r = -0.433, p = .039).Conclusions DMN is an important node of MDD. FCS within the default mode network and cortico-limbic networks in patients with major depressive disorder has been changed in the early stage of MDD. FCS can provide favourable and additional evidence in the investigation of brain pathophysiology and therapy in depression.

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Crossref · 10.1016/j.pnpbp.2019.109759

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Authors
Shi, Y., Li, J., Feng, Z., Xie, H., Duan, J., Chen, F., & Yang, H.
Affiliations
  • Second Affiliated Hospital of Zhejiang University (CN)
  • First Affiliated Hospital Zhejiang University (CN)
  • Zhejiang University (CN)
Corresponding author
Yang, Hong
Venue
Progress in Neuro-Psychopharmacology and Biological Psychiatry
Publisher
Elsevier BV
Published
2020-03
Volume
97
Pages
109759
ISSN
0278-5846 (ISSN-L)
OpenAlex
W2971897857
Cited by
56
References
91
Citations by year
2026: 3 · 2025: 8 · 2024: 12 · 2023: 8 · 2022: 11 · 2021: 12 · 2020: 1 · 2019: 1
FWCI
3.63
Type
journal article
Language
en
Open access
closed
Locations
  • Progress in Neuro-Psychopharmacology and Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • The Science Technology Department of Zhejiang Province (2017C33096)
  • The Health and Family Planning Commission of Zhejiang Province (2015107509)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
Keywords
major depressive disorder, default mode network, cortico-limbic network, resting-state brain activity, first-episode drug-naive patients, posterior cingulate cortex, precuneus, thalamus, prefrontal cortex, cognitive function, anxiety, depression severity, graph theory, brain network abnormalities, Stroop task, Hamilton Anxiety Rating Scale, Montgomery-Asberg Depression Rating Scale
MeSH terms
Default Mode Network, Adolescent, Adult, Brain, Cerebral Cortex, Cognition, Depressive Disorder, Major, Major Depressive Disorder, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways, Case-Control Studies, Young Adult, Stroop Test, Functional Neuroimaging, Limbic Lobe

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