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- Title
Trait and state-related characteristics of thalamo-cortical circuit disruption in bipolar disorder: a prospective cross-sectional study.
- Authors
Can Zeng; SuQun Liao; Weidan Pu
- Abstract
Objective: The purpose of this study is to investigate the shared and distinct thalamic-cortical circuit between bipolar depression and remission, as well as to investigate the trait and state-related characteristics of the abnormal thalamiccortical circuit in bipolar disorder. Methods: Resting-state functional magnetic resonance imaging was performed on 38 bipolar depression patients, 40 bipolar remission patients, and 39 gendermatched healthy controls (rsfMRI). The thalamic subregions were used as seed points to draw the functional connectivity of the entire brain, and then the shared and distinct thalamic-cortical circuits between bipolar depression and remission were compared. Results: When compared to the healthy group, both groups of patients had significantly lower functional connectivity between the rostral temporal thalamus and the lingual gyrus, the posterior parietal thalamus, the precuneus/cerebellum, and the occipital thalamus and the precuneus; however, functional connectivity between the premotor thalamus and the superior medial frontal was significantly lower in depression. Conclusion: This study discovered that both bipolar depression and remission had abnormal sensorimotor-thalamic functional connectivity, implying that it is a trait-related characteristic of bipolar disorder; however, the decline in prefrontalthalamic connectivity exists specifically in bipolar depression, implying that it is a state-related characteristic of bipolar disorder.
- Subjects
BIPOLAR disorder; FUNCTIONAL magnetic resonance imaging; MENTAL depression; CROSS-sectional method; FUNCTIONAL connectivity
- Publication
Frontiers in Psychiatry, 2023, p1
- ISSN
1664-0640
- Publication type
Article
- DOI
10.3389/fpsyt.2023.1067819