期刊论文详细信息
BMC Psychiatry
Brain structural and functional dissociated patterns in schizophrenia
Research Article
Mei Liu1  Hongjun Tian1  Chunli Wang1  Hongru Qu2  Xiaolei Ma2  Jiajia Zhu3  Wen Qin3  Chuanjun Zhuo4 
[1] Department of Psychiatry Functional Neuroimaging Laboratory, Tianjin Mental Health Center, Tianjin Anding Hospital, Tianjin, China;Department of Psychiatry, Tianjin Anning Hospital, 300300, Tianjin, China;Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, 300052, Tianjin, China;Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, 300052, Tianjin, China;Department of Psychiatry Functional Neuroimaging Laboratory, Tianjin Mental Health Center, Tianjin Anding Hospital, Tianjin, China;Department of Psychiatry, Tianjin Anning Hospital, 300300, Tianjin, China;Department of Psychiatry, Wenzhou Seventh People’s Hospital, 325000, Wenzhou, Zhejiang Province, China;
关键词: Schizophrenia;    Functional connectivity;    Gray matter volume;    Spatial distribution;    Structural brain alterations;   
DOI  :  10.1186/s12888-017-1194-5
 received in 2016-08-29, accepted in 2017-01-04,  发布年份 2017
来源: Springer
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【 摘 要 】

BackgroundAlthough previous studies found that aberrations in gray matter volume (GMV) and global functional connectivity density (gFCD) are important characteristics of schizophrenia, to the best of our knowledge no study to date has investigated the associations between the spatial distribution patterns of GMV and gFCD alterations. We investigated pattern changes in gFCD and GMV among patients with schizophrenia and their associated spatial distributions.MethodsNinety-five patients with schizophrenia and 93 matched healthy controls underwent structural and resting-state functional MRI scanning to assess gFCD and GMV.ResultsWe found that gFCD increased in the subcortical regions (caudate, pallidum, putamen, and thalami) and limbic system (left hippocampus and parahippocampus), and decreased in the posterior parieto-occipito-temporal cortices (postcentral gyri, occipital cortex, temporo-occipital conjunction, and inferior parietal lobule), in patients with schizophrenia. By contrast, we found decreased GMV in brain regions including the frontal, parietal, temporal, occipital, cingulate cortices, and the insular, striatum, thalamus in these patients. Increased gFCD primarily occurred in subcortical regions including the basal ganglia and some regions of the limbic system. Decreased gFCD appeared primarily in the cortical regions. There were no statistically significant correlations between changes in gFCD and GMV, and their spatial distribution patterns, in different regions.ConclusionsOur findings indicate that gFCD and GMV are both perturbed in multiple brain regions in schizophrenia. gFCD and GMV consistently decreased in the cortical regions, with the exception of the Supplementary Motor Area (SMA). However, in the sub-cortical regions, the alterations of gFCD and GMV showed the opposite pattern, with increased gFCD and decreased GMV simultaneously observed in these regions. Overall, our findings suggest that structural and functional alterations appear to contribute independently to the neurobiology of schizophrenia.

【 授权许可】

CC BY   
© The Author(s). 2017

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