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Transcriptional signatures of the whole-brain voxel-wise resting-state functional network centrality alterations in schizophrenia

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机构: [1]Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. [2]Department of Ultrasound, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China. [3]Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China. [4]Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, China. [5]Department of Radiology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China
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Neuroimaging studies have revealed that patients with schizophrenia exhibit disrupted resting-state functional connectivity. However, the inconsistent findings across these studies have hindered our comprehensive understanding of the functional connectivity changes associated with schizophrenia, and the molecular mechanisms associated with these alterations remain largely unclear. A quantitative meta-analysis was first conducted on 21 datasets, involving 1057 patients and 1186 healthy controls, to examine disrupted resting-state functional connectivity in schizophrenia, as measured by whole-brain voxel-wise functional network centrality (FNC). Subsequently, partial least squares regression analysis was employed to investigate the relationship between FNC changes and gene expression profiles obtained from the Allen Human Brain Atlas database. Finally, gene enrichment analysis was performed to unveil the biological significance of the altered FNC-related genes. Compared with healthy controls, patients with schizophrenia show consistently increased FNC in the right inferior parietal cortex extending to the supramarginal gyrus, angular gyrus, bilateral medial prefrontal cortex, and right dorsolateral prefrontal cortex, while decreased FNC in the bilateral insula, bilateral postcentral gyrus, and right inferior temporal gyrus. Meta-regression analysis revealed that increased FNC in the right inferior parietal cortex was positively correlated with clinical score. In addition, these observed functional connectivity changes were found to be spatially associated with the brain-wide expression of specific genes, which were enriched in diverse biological pathways and cell types. These findings highlight the aberrant functional connectivity observed in schizophrenia and its potential molecular underpinnings, providing valuable insights into the neuropathology of dysconnectivity associated with this disorder.© 2023. The Author(s).

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大类 | 2 区 医学
小类 | 2 区 精神病学
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Q1 PSYCHIATRY

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第一作者机构: [1]Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China.
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通讯机构: [1]Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. [3]Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China. [4]Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, China. [5]Department of Radiology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China
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