PMID- 31178903 OWN - NLM STAT- MEDLINE DCOM- 20200114 LR - 20200309 IS - 1687-5443 (Electronic) IS - 2090-5904 (Print) IS - 1687-5443 (Linking) VI - 2019 DP - 2019 TI - Alterations of Interhemispheric Functional Connectivity and Degree Centrality in Cervical Dystonia: A Resting-State fMRI Study. PG - 7349894 LID - 10.1155/2019/7349894 [doi] LID - 7349894 AB - BACKGROUND: Cervical dystonia (CD) is a neurological movement disorder characterized by involuntary head and neck movements and postures. Reports on microstructural and functional abnormalities in multiple brain regions not limited to the basal ganglia have been increasing in patients with CD. However, the neural bases of CD are unclear. This study is aimed at identifying cerebral functional abnormalities in CD by using resting-state functional magnetic resonance imaging (rs-fMRI). METHODS: Using rs-fMRI data, voxel-mirrored homotopic connectivity (VMHC) and degree centrality were used to compare the alterations of the rs-functional connectivity (FC) between 19 patients with CD and 21 healthy controls. Regions showing abnormal FCs from two measurements were the regions of interest for correlation analyses. RESULTS: Compared with healthy controls, patients with CD exhibited significantly decreased VMHC in the supplementary motor area (SMA), precuneus (PCu)/postcentral gyrus, and superior medial prefrontal cortex (MPFC). Significantly increased degree centrality in the right PCu and decreased degree centrality in the right lentiform nucleus and left ventral MPFC were observed in the patient group compared with the control group. Further correlation analyses showed that the VMHC values in the SMA were negatively correlated with dystonia severity. CONCLUSION: Local abnormalities and interhemispheric interaction deficits in the sensorimotor network (SMA, postcentral gyrus, and PCu), default mode network (MPFC and PCu), and basal ganglia may be the key characteristics in the pathogenesis mechanism of CD. FAU - Jiang, Wenyan AU - Jiang W AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Lei, Yiwu AU - Lei Y AD - Department of Radiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Wei, Jing AU - Wei J AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Yang, Lu AU - Yang L AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Wei, Shubao AU - Wei S AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Yin, Qiong AU - Yin Q AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Luo, Shuguang AU - Luo S AUID- ORCID: 0000-0002-4082-6136 AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Guo, Wenbin AU - Guo W AUID- ORCID: 0000-0002-1626-2465 AD - Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190424 PL - United States TA - Neural Plast JT - Neural plasticity JID - 100883417 SB - IM MH - Adult MH - Brain/*diagnostic imaging MH - Brain Mapping MH - Female MH - Humans MH - *Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Nerve Net/*diagnostic imaging MH - Torticollis/*diagnostic imaging PMC - PMC6507243 EDAT- 2019/06/11 06:00 MHDA- 2020/01/15 06:00 PMCR- 2019/04/24 CRDT- 2019/06/11 06:00 PHST- 2018/10/23 00:00 [received] PHST- 2019/02/19 00:00 [revised] PHST- 2019/03/21 00:00 [accepted] PHST- 2019/06/11 06:00 [entrez] PHST- 2019/06/11 06:00 [pubmed] PHST- 2020/01/15 06:00 [medline] PHST- 2019/04/24 00:00 [pmc-release] AID - 10.1155/2019/7349894 [doi] PST - epublish SO - Neural Plast. 2019 Apr 24;2019:7349894. doi: 10.1155/2019/7349894. eCollection 2019.