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Choi GS, Yun JY, Hwang S, Kim SE, Kim JY, Im CH, Lee HW. Can Corticomuscular Coherence Differentiate between REM Sleep Behavior Disorder with or without Parkinsonism? J Clin Med 2021; 10:jcm10235585. [PMID: 34884285 PMCID: PMC8658120 DOI: 10.3390/jcm10235585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 11/16/2022] Open
Abstract
REM sleep behavior disorder (RBD) could be a predictor of Parkinsonism even before development of typical motor symptoms. This study aims to characterize clinical features and corticomuscular and corticocortical coherence (CMC and CCC, respectively) during sleep in RBD patients with or without Parkinsonism. We enrolled a total of 105 subjects, including 20 controls, 54 iRBD, and 31 RBD+P patients, patients who were diagnosed as idiopathic RBD (iRBD) and RBD with Parkinsonism (RBD+P) in our neurology department. We analyzed muscle atonia index (MAI) and CMC between EEG and chin/limb muscle electromyography (EMG) and CCC during different sleep stages. Although differences in the CMC of iRBD group were observed only during REM sleep, MAI differences between groups were noted during both REM and NREM N2 stage sleep. During REM sleep, CMC was higher and MAI was reduced in iRBD patients compared to controls (p = 0.001, p < 0.001, respectively). Interestingly, MAI was more reduced in RBD+P compared to iRBD patients. In comparison, CCC was higher in iRBD patients compared to controls whereas CCC was lower in RBD+P groups compared to control and iRBD groups in various frequency bands during both NREM N2 and REM sleep stages. Among them, increased CMC during REM sleep revealed correlation between clinical severities of RBD symptoms. Our findings indicate that MAI, CMC, and CCC showed distinctive features in iRBD and RBD+P patients compared to controls, suggesting potential usefulness to understand possible links between these diseases.
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Affiliation(s)
- Gyeong Seon Choi
- Department of Neurology, Ewha Womans University School of Medicine, Seoul 07985, Korea; (G.S.C.); (J.Y.Y.); (S.H.)
- Department of Neurology, Bundang Jesaeng General Hospital, Seongnam 13590, Korea
| | - Ji Young Yun
- Department of Neurology, Ewha Womans University School of Medicine, Seoul 07985, Korea; (G.S.C.); (J.Y.Y.); (S.H.)
- Department of Medical Science, Ewha Womans University School of Medicine, Seoul 07804, Korea;
| | - Sungeun Hwang
- Department of Neurology, Ewha Womans University School of Medicine, Seoul 07985, Korea; (G.S.C.); (J.Y.Y.); (S.H.)
| | - Song E. Kim
- Department of Medical Science, Ewha Womans University School of Medicine, Seoul 07804, Korea;
| | - Jeong-Yeon Kim
- Department of Biomedical Engineering, Hanyang University School of Engineering, Seoul 04763, Korea; (J.-Y.K.); (C.-H.I.)
| | - Chang-Hwan Im
- Department of Biomedical Engineering, Hanyang University School of Engineering, Seoul 04763, Korea; (J.-Y.K.); (C.-H.I.)
| | - Hyang Woon Lee
- Department of Neurology, Ewha Womans University School of Medicine, Seoul 07985, Korea; (G.S.C.); (J.Y.Y.); (S.H.)
- Department of Medical Science, Ewha Womans University School of Medicine, Seoul 07804, Korea;
- Computational Medicine, Graduate Program in System Health Science & Engineering, Ewha Womans University, Seoul 03765, Korea
- Correspondence: ; Tel.: +82-2-2650-2673
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Jiang H, Huang J, Shen Y, Guo S, Wang L, Han C, Liu L, Ma K, Xia Y, Li J, Xu X, Xiong N, Wang T. RBD and Neurodegenerative Diseases. Mol Neurobiol 2016; 54:2997-3006. [PMID: 27032389 DOI: 10.1007/s12035-016-9831-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 03/04/2016] [Indexed: 01/08/2023]
Abstract
Rapid eye movement (REM) sleep behavior disorder (RBD) is a sleep disorder characterized by enacting one's dreams during the REM sleep, with most of the dreams being violent or aggressive, so that patients often come to see the doctor complaining hurting themselves or bed partners during sleep. Prevalence of RBD, based on population, is 0.38-2.01 %, but much higher in patients with neurodegenerative diseases, especially synucleinopathies. RBD may herald the emergence of synucleinopathies by decades, such that it may be used as an effective early marker of neurodegenerative diseases. Pharmaceutical treatment of RBD includes clonazepam, melatonin, pramipexole, and some newly reported medications. In this review, we summarized the clinical and PSG features of RBD, the pathophysiology and the therapy of it, focusing on the correlation between neurodegenerative diseases and RBD, in order to emphasize the significance of RBD as an early marker of neurodegenerative diseases.
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Affiliation(s)
- Haiyang Jiang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Jinsha Huang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Yan Shen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Shiyi Guo
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Luxi Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Chao Han
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Ling Liu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Kai Ma
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Yun Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Jie Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Xiaoyun Xu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Nian Xiong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China
| | - Tao Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, Hubei, China.
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