PMID- 37355150 OWN - NLM STAT- MEDLINE DCOM- 20230830 LR - 20230830 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1817 DP - 2023 Oct 15 TI - Increased functional connectivity coupling with supplementary motor area in blepharospasm at rest. PG - 148469 LID - S0006-8993(23)00240-8 [pii] LID - 10.1016/j.brainres.2023.148469 [doi] AB - OBJECTIVE: To explore the abnormalities of brain function in blepharospasm (BSP) and to illustrate its neural mechanisms by assuming supplementary motor area (SMA) as the entry point. METHODS: Twenty-five patients with BSP and 23 controls underwent resting-state functional MRI, seed-based functional connectivity (FC), correlation analysis, receiver operating characteristic curve (ROC) analysis, and support vector machine (SVM) were applied to process the data. RESULTS: Patients showed that the left medial prefrontal cortex (MPFC), left lingual gyrus, right cerebellar crus I, and right lingual gyrus/cerebellar crus I had enhanced FC with the left SMA, whereas the right inferior temporal gyrus (ITG) had enhanced FC with the right SMA relative to controls. The FC between the left MPFC and left SMA was positively correlated with symptomatic severity. The ROC analysis verified that the abnormal FCs demonstrated in this study can separate patients and controls at high sensitivity and specificity. SVM analysis exhibited that combined FCs of the left SMA were optimal for distinguishing patients and control group at the accuracy of 89.58%, with sensitivity of 92.00% and specificity of 86.96%. CONCLUSIONS: Several brain networks partake in the neurobiology of BSP. SMA plays a vital role in several brain networks and might be the key pathogenic factor in BSP. SIGNIFICANCE: Providing novel evidence for the engagement of the MPFC in the motor symptoms of BSP, enhancing credibility of the thesis that SMA regulates the neurobiology of BSP, and providing ideas of screening susceptible population of BSP using neuroimaging. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Liu, Yang AU - Liu Y AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China; Department of Neurology, Yancheng City No. 1 People's Hospital, Yancheng, Jiangsu 224001, China. FAU - Yang, Lu AU - Yang L AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Yan, Haohao AU - Yan H AD - Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China. FAU - Feng, Changqiang AU - Feng C AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Jiang, Wenyan AU - Jiang W AD - Department of Intensive Care Unit, Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Li, Wenmei AU - Li W AD - Department of Radiology, The First Affiliated Hospital, 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 - Pang, Lulu AU - Pang L AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Liang, Meilan AU - Liang M AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. FAU - Guo, Wenbin AU - Guo W AD - Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China. Electronic address: guowenbin76@csu.edu.cn. FAU - Luo, Shuguang AU - Luo S AD - Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China. Electronic address: luoshuguang@stu.gxmu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230622 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 SB - IM MH - Humans MH - *Blepharospasm/diagnostic imaging/physiopathology MH - *Motor Cortex/diagnostic imaging/physiopathology MH - Rest MH - Prefrontal Cortex/diagnostic imaging/physiopathology MH - Male MH - Adult MH - Middle Aged MH - *Support Vector Machine MH - *Connectome MH - Magnetic Resonance Imaging OTO - NOTNLM OT - Blepharospasm OT - Network OT - Resting-state functional MRI OT - Seed-based functional connectivity OT - Supplementary motor area COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/06/25 01:08 MHDA- 2023/08/29 12:42 CRDT- 2023/06/24 19:16 PHST- 2023/02/26 00:00 [received] PHST- 2023/06/09 00:00 [revised] PHST- 2023/06/17 00:00 [accepted] PHST- 2023/08/29 12:42 [medline] PHST- 2023/06/25 01:08 [pubmed] PHST- 2023/06/24 19:16 [entrez] AID - S0006-8993(23)00240-8 [pii] AID - 10.1016/j.brainres.2023.148469 [doi] PST - ppublish SO - Brain Res. 2023 Oct 15;1817:148469. doi: 10.1016/j.brainres.2023.148469. Epub 2023 Jun 22.