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Clinical Article
A preliminary comparative study on the characteristics of resting-state brain functional networks in patients with comorbid insomnia in first-episode and recurrent depression
CHEN Limei  LI Mengyao  HUANG Yingxin  HUANG Yihua  XIE Wang  YAN Luda  LI Jingjing  LI Zhongxian  PENG Min  ZHOU Yifu  FANG Jiliang  ZHOU Peng 

Cite this article as: CHEN L M, LI M Y, HUANG Y X, et al. A preliminary comparative study on the characteristics of resting-state brain functional networks in patients with comorbid insomnia in first-episode and recurrent depression[J]. Chin J Magn Reson Imaging, 2025, 16(1): 89-94, 110. DOI:10.12015/issn.1674-8034.2025.01.014.


[Abstract] Objective To investigate the disparities in brain functional connectivity (FC) among patients with first-episode depression comorbid with insomnia (FEDCI) and those with recurrent depression comorbid with insomnia (RDCI), and to assess its association with clinical manifestations.Materials and Methods A cohort of 53 patients with depression comorbid with insomnia was studied. The participants were categorized into two groups: 32 patients with FEDCI and 21 patients with RDCI. Additionally, 21 healthy controls (HC) served as a control group. The 17-item Hamilton Depression Scale (HAMD-17) was used to assess the degree of depression, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI) to assess the degree of depression and sleep status. The PSQI and ISI were used to assess sleep status. Resting-state blood oxygen level-dependent functional magnetic resonance imaging (fMRI) data were acquired from all participants. Using SPSS software, we employed univariate analysis of variance to compare FC differences based on the bilateral rostral anterior cingulate cortex (rACC) as seed regions across the three groups, and analyzed its correlation with clinical scales. fMRI data underwent GRF correction with voxel-level P < 0.001 and cluster-level P < 0.05.Results The differences in demographics and clinical symptom scores between the two groups were not statistically significant (P > 0.05). The difference in FC based on bilateral rACC between the FEDCI and RDCI groups and the HC group was not statistically significant (P > 0.05). However, with the left rACC as a seed region, the RDCI group exhibited lower FC values in the left angular gyrus and right middle frontal gyrus compared to the HC group. In comparison to the FEDCI group, the RDCI group had higher FC values in the left angular gyrus and left inferior frontal gyrus (P < 0.05). Utilizing the right rACC as a seed region, the FEDCI group displayed a higher FC value in the left thalamus, while showing lower FC values in the left posterior central gyrus and right insula compared to the HC group (P < 0.05). Furthermore, the FEDCI group exhibited lower FC values in the left posterior central gyrus and right insula compared to the RDCI group (P < 0.05). Correlation analysis revealed a positive association between the FC values of the left anterior cingulate gyrus and left angular gyrus in the FEDCI group with the HAMD-17 (P = 0.012, r = 0.439). Additionally, the number of depression episodes in the RDCI group positively correlated with the FC value between the left rACC and left inferior frontal gyrus (P = 0.002, r = 0.654).Conclusions There exist significant differences in prefrontal, the emotional and somatosensory motor network brain functional networks between patients with FEDCI and RDCI, which correlate with clinical symptoms and the number of depressive episodes.
[Keywords] functional magnetic resonance imaging;first-episode depression comorbid insomnia;recurrent depression comorbid insomnia;functional connectivity;rostral anterior cingulate cortex

CHEN Limei1   LI Mengyao1   HUANG Yingxin1   HUANG Yihua2   XIE Wang2   YAN Luda1   LI Jingjing1, 3   LI Zhongxian1   PENG Min1   ZHOU Yifu1   FANG Jiliang4*   ZHOU Peng1, 3*  

1 Department of Acupuncture, Seventh Clinical Medical College, Guangzhou University of Chinese Medicine, Shenzhen 518100, China

2 Department of Radiology, Bao'an District Traditional Chinese Medicine Hospital, Shenzhen 518100, China

3 Acupuncture Clinical Research Center, Bao'an District Traditional Chinese Medicine Hospital, Shenzhen 518100, China

4 Department of Radiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China

Corresponding author: FANG J L, E-mail: fangmgh@163.com ZHOU P, E-mail: zhoupeng80@gzucm.edu.cn

Conflicts of interest   None.

Received  2024-06-29
Accepted  2025-01-10
DOI: 10.12015/issn.1674-8034.2025.01.014
Cite this article as: CHEN L M, LI M Y, HUANG Y X, et al. A preliminary comparative study on the characteristics of resting-state brain functional networks in patients with comorbid insomnia in first-episode and recurrent depression[J]. Chin J Magn Reson Imaging, 2025, 16(1): 89-94, 110. DOI:10.12015/issn.1674-8034.2025.01.014.

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