Yanbing Hou1, Fei Feng1, Lingyu Zhang1, Ruwei Ou1, Junyu Lin1, Qiyong Gong2, Huifang Shang3. 1. Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China. 2. Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China. huaxigongqy@163.com. 3. Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China. hfshang2002@126.com.
Abstract
PURPOSE: The mutations of the glucocerebrosidase (GBA) gene are the greatest genetic risk factor for Parkinson's disease (PD). The mechanism underlying the association between GBA mutations and PD has not been fully elucidated. METHODS: Using resting-state functional magnetic resonance imaging and graph theory analysis to investigate the disrupted topological organization in PD patients with GBA mutation (GBA-PD). Eleven GBA-PD patients, 11 noncarriers with PD, and 18 healthy controls (HCs) with a similar age and sex distribution were recruited. Individual whole-brain functional connectome was constructed, and the global and nodal topological disruptions were calculated among groups. Partial correlation analyses between the clinical features of patients with PD and topological alterations were performed. RESULTS: The GBA-PD group showed prominently decreased characteristic path length (Lp) and increased global efficiency (Eg) compared to HCs at the global level; a significantly increased nodal betweenness centrality in the medial prefrontal cortex (mPFC) and precuneus within the default mode network, and precentral gyrus within the sensorimotor network, while a significantly decreased betweenness centrality in nodes within the cingulo-opercular network compared to the noncarrier group at the regional level. The altered nodal betweenness centrality of mPFC was positively correlated with fatigue severity scale scores in all patients with PD. CONCLUSION: The preliminary pilot study found that GBA-PD patients had a higher functional integration at the global level. The nodal result of the mPFC is congruent with the potential fatigue pathology in PD and is suggestive of a profound effect of GBA mutations on the clinical fatigue in patients with PD.
PURPOSE: The mutations of the glucocerebrosidase (GBA) gene are the greatest genetic risk factor for Parkinson's disease (PD). The mechanism underlying the association between GBA mutations and PD has not been fully elucidated. METHODS: Using resting-state functional magnetic resonance imaging and graph theory analysis to investigate the disrupted topological organization in PD patients with GBA mutation (GBA-PD). Eleven GBA-PD patients, 11 noncarriers with PD, and 18 healthy controls (HCs) with a similar age and sex distribution were recruited. Individual whole-brain functional connectome was constructed, and the global and nodal topological disruptions were calculated among groups. Partial correlation analyses between the clinical features of patients with PD and topological alterations were performed. RESULTS: The GBA-PD group showed prominently decreased characteristic path length (Lp) and increased global efficiency (Eg) compared to HCs at the global level; a significantly increased nodal betweenness centrality in the medial prefrontal cortex (mPFC) and precuneus within the default mode network, and precentral gyrus within the sensorimotor network, while a significantly decreased betweenness centrality in nodes within the cingulo-opercular network compared to the noncarrier group at the regional level. The altered nodal betweenness centrality of mPFC was positively correlated with fatigue severity scale scores in all patients with PD. CONCLUSION: The preliminary pilot study found that GBA-PD patients had a higher functional integration at the global level. The nodal result of the mPFC is congruent with the potential fatigue pathology in PD and is suggestive of a profound effect of GBA mutations on the clinical fatigue in patients with PD.
Authors: E Sidransky; M A Nalls; J O Aasly; J Aharon-Peretz; G Annesi; E R Barbosa; A Bar-Shira; D Berg; J Bras; A Brice; C-M Chen; L N Clark; C Condroyer; E V De Marco; A Dürr; M J Eblan; S Fahn; M J Farrer; H-C Fung; Z Gan-Or; T Gasser; R Gershoni-Baruch; N Giladi; A Griffith; T Gurevich; C Januario; P Kropp; A E Lang; G-J Lee-Chen; S Lesage; K Marder; I F Mata; A Mirelman; J Mitsui; I Mizuta; G Nicoletti; C Oliveira; R Ottman; A Orr-Urtreger; L V Pereira; A Quattrone; E Rogaeva; A Rolfs; H Rosenbaum; R Rozenberg; A Samii; T Samaddar; C Schulte; M Sharma; A Singleton; M Spitz; E-K Tan; N Tayebi; T Toda; A R Troiano; S Tsuji; M Wittstock; T G Wolfsberg; Y-R Wu; C P Zabetian; Y Zhao; S G Ziegler Journal: N Engl J Med Date: 2009-10-22 Impact factor: 91.245
Authors: Fabio Blandini; Roberto Cilia; Silvia Cerri; Gianni Pezzoli; Anthony H V Schapira; Stephen Mullin; José L Lanciego Journal: Mov Disord Date: 2018-12-27 Impact factor: 10.338