PMID- 31989422 OWN - NLM STAT- MEDLINE DCOM- 20210322 LR - 20230426 IS - 1931-7565 (Electronic) IS - 1931-7557 (Linking) VI - 14 IP - 6 DP - 2020 Dec TI - Patterns of intrinsic brain activity in essential tremor with resting tremor and tremor-dominant Parkinson's disease. PG - 2606-2617 LID - 10.1007/s11682-019-00214-4 [doi] AB - The clinical pictures of essential tremor (ET) with resting tremor (rET) and tremor-dominant Parkinson's disease (tPD) are often quite mimic at the early stage, current approaches to the diagnosis and treatment therefore remain challenging. The regional homogeneity (ReHo) method under resting-state functional magnetic resonance imaging (rs-fMRI) would help exhibit the patterns in neural activity, which further contribute to differentiate these disorders and explore the relationship between symptoms and regional functional abnormalities. Sixty-eight Chinese participants were recruited, including 19 rET patients, 24 tPD patients and 25 age- and gender-matched healthy controls (HCs). All participants underwent clinical assessment and rs-fMRI with a ReHo method to investigate the alterations of neural activity, and the correlation between them. Differences were compared by two-sample t-test (corrected with AlphaSim, p < 0.05). Compared with HCs, patients' groups both displayed decreased ReHo in the default mode network (DMN), bilateral putamen and bilateral cerebellum. While tPD patients specifically exihibited decreased ReHo in the bilateral supplementary motor area (SMA) and precentral gyrus (M1). The correlation analysis revealed that ReHo in the bilateral putamen, right SMA and left cerebellum_crus I were negatively correlated with the UPDRS-III score, respectively, in tPD group. Our results indicated the rET patients may share part of the pathophysiological mechanism of tPD patients. In addition, we found disorder-specific involvement of the SMA and M1 in tPD. Such a distinction may lend itself to use as a potential biomarker for differentiating between these two diseases. FAU - Li, Jun-Ying AU - Li JY AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Lu, Zhong-Jiao AU - Lu ZJ AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Suo, Xue-Ling AU - Suo XL AD - Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Li, Nan-Nan AU - Li NN AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Lei, Du AU - Lei D AD - Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Wang, Ling AU - Wang L AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Peng, Jia-Xin AU - Peng JX AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Duan, Li-Ren AU - Duan LR AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Xi, Jing AU - Xi J AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Jiang, Yi AU - Jiang Y AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. FAU - Gong, Qi-Yong AU - Gong QY AD - Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Peng, Rong AU - Peng R AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China. qrongpeng@126.com. LA - eng GR - 2018HH0077/Sichuan Science and Technology Program/ GR - 2018FZ0029/Sichuan Science and Technology Program/ GR - 2018SCU12029/The Fundamental Research Funds for the Central Universities/ GR - 81801272/National Natural Science Foundation of China/ GR - 2017M610605/China Postdoctoral Science Foundation/ GR - 2018HXBH085/Post-Doctor Research Project, West China Hospital, Sichuan University/ PT - Journal Article PL - United States TA - Brain Imaging Behav JT - Brain imaging and behavior JID - 101300405 SB - IM MH - Brain/diagnostic imaging MH - *Essential Tremor/diagnostic imaging MH - Humans MH - Magnetic Resonance Imaging MH - *Parkinson Disease/diagnostic imaging MH - Tremor/diagnostic imaging OTO - NOTNLM OT - Essential tremor OT - Parkinson's disease OT - Regional homogeneity OT - Rest tremor OT - rs-fMRI EDAT- 2020/01/29 06:00 MHDA- 2021/03/23 06:00 CRDT- 2020/01/29 06:00 PHST- 2020/01/29 06:00 [pubmed] PHST- 2021/03/23 06:00 [medline] PHST- 2020/01/29 06:00 [entrez] AID - 10.1007/s11682-019-00214-4 [pii] AID - 10.1007/s11682-019-00214-4 [doi] PST - ppublish SO - Brain Imaging Behav. 2020 Dec;14(6):2606-2617. doi: 10.1007/s11682-019-00214-4.