Cited by 57Functional Brain Connectivity StudiesSleep and related disordersSleep and Wakefulness Research

Brain structural and functional alterations specific to low sleep efficiency in major depressive disorder

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Yang, Ying, Zhu, Dao-min, Zhang, Cun, Zhang, Yu, Wang, Chunli, Zhang, Biao, Zhao, Wenming, Zhu, Jiajia +1 more·2020·Frontiers in Neuroscience

Abstract

BACKGROUND: Sleep disturbance is common in patients with major depressive disorder (MDD), but the exploration of its neural underpinnings is limited by subjective sleep measurement and single-modality neuroimaging analyses. METHODS: = 54; 23 men; aged 45 ± 12 years) groups. Inter-group differences in brain structure and function were examined by applying voxel-based morphometry (VBM), regional homogeneity (ReHo) and functional connectivity strength (FCS), and tract-based spatial statistics (TBSS) approaches to structural, functional, and diffusion MRI data, respectively. RESULTS: There was no significant difference in gray matter volume (GMV) between the NSE and LSE groups. Compared with the NSE group, the LSE group showed increased axial diffusivity in the left superior and posterior corona radiata, and left posterior limb and retrolenticular part of internal capsule. In addition, the LSE group exhibited decreased ReHo in the bilateral lingual gyri and right postcentral gyrus yet increased FCS in the left angular gyrus relative to the NSE group. Moreover, validation analyses revealed that these results remained after adjusting for the medication effect. CONCLUSION: Our data indicate that preserved gray matter morphology, impaired white matter integrity, and decreased local synchronization degree yet increased FCS are specific to low SE in MDD patients. These findings of disassociation between structural and functional alterations might provide insights into the neural mechanisms of sleep disturbance in depression.

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Crossref · 10.3389/fnins.2020.00050

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  • The areas of FCS decrease are prominent hubs of global and local functional connectivity, and age-related decrease could underlie performance decline in working memory and visual sustained attention.

    “The areas of FCS decrease are the prominent hubs of global and local functional connectivity, and the age-related decrease could underlie the performance decline in working memory and visual sustained attention, which are the most affected cognitive functions that occur with aging [39-41].”

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Authors
Yang, Y., Zhu, D.-M., Zhang, C., Zhang, Y., Wang, C., Zhang, B., Zhao, W., Zhu, J., & Yu, Y.
Affiliations
  • First Affiliated Hospital of Anhui Medical University (CN)
  • Anhui Medical University (CN)
Corresponding author
  • Zhu, Jiajia
  • Yu, Yongqiang
Venue
Frontiers in Neuroscience
Published
2020-01-31
Volume
14
Pages
50-50
ISSN
1662-453X (ISSN-L)
OpenAlex
W3004408022
Cited by
57
References
65
Citations by year
2026: 8 · 2025: 11 · 2024: 9 · 2023: 11 · 2022: 8 · 2021: 7 · 2020: 3
FWCI
3.90
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
National Natural Science Foundation of China (81771817, 81801679, 81571308)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
major depressive disorder, sleep efficiency, sleep disorders, white matter integrity, gray matter volume, regional homogeneity, functional connectivity, corona radiata, internal capsule, angular gyrus, lingual gyrus, postcentral gyrus, diffusion MRI

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