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Stanziano M, Golfrè Andreasi N, Messina G, Rinaldo S, Palermo S, Verri M, Demichelis G, Medina JP, Ghielmetti F, Bonvegna S, Nigri A, Frazzetta G, D'Incerti L, Tringali G, DiMeco F, Eleopra R, Bruzzone MG. Resting State Functional Connectivity Signatures of MRgFUS Vim Thalamotomy in Parkinson's Disease: A Preliminary Study. Front Neurol 2022; 12:786734. [PMID: 35095731 PMCID: PMC8791196 DOI: 10.3389/fneur.2021.786734] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/02/2021] [Indexed: 12/03/2022] Open
Abstract
Magnetic Resonance-guided high-intensity Focused Ultrasound (MRgFUS) of the thalamic ventral intermediate nucleus (Vim) for tremor has increasingly gained interest as a new non-invasive alternative to standard neurosurgery. Resting state functional connectivity (rs-FC) correlates of MRgFUS have not been extensively investigated yet. A region of interest (ROI)-to-ROI rs-FC MRI “connectomic” analysis focusing on brain regions relevant for tremor was conducted on 15 tremor-dominant patients with Parkinson's disease who underwent MRgFUS. We tested whether rs-FC between tremor-related areas was modulated by MRgFUS at 1 and 3 months post-operatively, and whether such changes correlated with individual clinical outcomes assessed by the MDS-UPDRS-III sub items for tremor. Significant increase in FC was detected within bilateral primary motor (M1) cortices, as well as between bilateral M1 and crossed primary somatosensory cortices, and also between pallidum and the dentate nucleus of the untreated hemisphere. Correlation between disease duration and FC increase at 3 months was found between the putamen of both cerebral hemispheres and the Lobe VI of both cerebellar hemispheres, as well as between the Lobe VI of untreated cerebellar hemisphere with bilateral supplementary motor area (SMA). Drop-points value of MDS-UPDRS at 3 months correlated with post-treatment decrease in FC, between the anterior cingulate cortex and bilateral SMA, as well as between the Lobe VI of treated cerebellar hemisphere and the interpositus nucleus of untreated cerebellum. Tremor improvement at 3 months, expressed as percentage of intra-subject MDS-UPDRS changes, correlated with FC decrease between bilateral occipital fusiform gyrus and crossed Lobe VI and Vermis VI. Good responders (≥50% of baseline tremor improvement) showed reduced FC between bilateral SMA, between the interpositus nucleus of untreated cerebellum and the Lobe VI of treated cerebellum, as well as between the untreated SMA and the contralateral putamen. Good responders were characterized at baseline by crossed hypoconnectivity between bilateral putamen and M1, as well as between the putamen of the treated hemisphere and the contralateral SMA. We conclude that MRgFUS can effectively modulate brain FC within the tremor network. Such changes are associated with clinical outcome. The shifting mode of integration among the constituents of this network is, therefore, susceptible to external redirection despite the chronic nature of PD.
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Affiliation(s)
- Mario Stanziano
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy.,Neurosciences Department "Rita Levi Montalcini, " University of Turin, Turin, Italy
| | - Nico Golfrè Andreasi
- Parkinson and Movement Disorders Unit, Clinical Neurosciences Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giuseppe Messina
- Functional Neurosurgery Unit, Neurosurgery Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Rinaldo
- Parkinson and Movement Disorders Unit, Clinical Neurosciences Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Palermo
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy.,European Innovation Partnership on Active and Healthy Ageing, Brussels, Belgium
| | - Mattia Verri
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Greta Demichelis
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Jean Paul Medina
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesco Ghielmetti
- Health Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Salvatore Bonvegna
- Parkinson and Movement Disorders Unit, Clinical Neurosciences Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Anna Nigri
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | | | - Ludovico D'Incerti
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giovanni Tringali
- Functional Neurosurgery Unit, Neurosurgery Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesco DiMeco
- Neurosurgery Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy.,Pathophysiology and Transplantation Department, University of Milan, Milan, Italy.,Neurological Surgery Department, Johns Hopkins Medical School, Baltimore, MD, United States
| | - Roberto Eleopra
- Parkinson and Movement Disorders Unit, Clinical Neurosciences Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
| | - Maria Grazia Bruzzone
- Neuroradiology Unit, Diagnostic and Technology Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Neurologico Carlo Besta, Milan, Italy
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Wichmann T. Changing views of the pathophysiology of Parkinsonism. Mov Disord 2019; 34:1130-1143. [PMID: 31216379 DOI: 10.1002/mds.27741] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/15/2019] [Accepted: 05/20/2019] [Indexed: 12/11/2022] Open
Abstract
Studies of the pathophysiology of parkinsonism (specifically akinesia and bradykinesia) have a long history and primarily model the consequences of dopamine loss in the basal ganglia on the function of the basal ganglia/thalamocortical circuit(s). Changes of firing rates of individual nodes within these circuits were originally considered central to parkinsonism. However, this view has now given way to the belief that changes in firing patterns within the basal ganglia and related nuclei are more important, including the emergence of burst discharges, greater synchrony of firing between neighboring neurons, oscillatory activity patterns, and the excessive coupling of oscillatory activities at different frequencies. Primarily focusing on studies obtained in nonhuman primates and human patients with Parkinson's disease, this review summarizes the current state of this field and highlights several emerging areas of research, including studies of the impact of the heterogeneity of external pallidal neurons on parkinsonism, the importance of extrastriatal dopamine loss, parkinsonism-associated synaptic and morphologic plasticity, and the potential role(s) of the cerebellum and brainstem in the motor dysfunction of Parkinson's disease. © 2019 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Thomas Wichmann
- Department of Neurology/School of Medicine and Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
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Chen J, Ho SL, Lee TMC, Chang RSK, Pang SYY, Li L. Visuomotor control in patients with Parkinson's disease. Neuropsychologia 2016; 80:102-114. [DOI: 10.1016/j.neuropsychologia.2015.10.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 10/13/2015] [Accepted: 10/30/2015] [Indexed: 11/25/2022]
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Ehgoetz Martens KA, Ellard CG, Almeida QJ. Does manipulating the speed of visual flow in virtual reality change distance estimation while walking in Parkinson’s disease? Exp Brain Res 2014; 233:787-95. [DOI: 10.1007/s00221-014-4154-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 11/17/2014] [Indexed: 01/23/2023]
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Xun Chen, Wang ZJ, McKeown MJ. A Three-Step Multimodal Analysis Framework for Modeling Corticomuscular Activity With Application to Parkinson’s Disease. IEEE J Biomed Health Inform 2014; 18:1232-41. [DOI: 10.1109/jbhi.2013.2284480] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Stevenson JKR, Lee C, Lee BS, Talebifard P, Ty E, Aseeva K, Oishi MMK, McKeown MJ. Excessive Sensitivity to Uncertain Visual Input in L-DOPA-Induced Dyskinesias in Parkinson's Disease: Further Implications for Cerebellar Involvement. Front Neurol 2014; 5:8. [PMID: 24550883 PMCID: PMC3912458 DOI: 10.3389/fneur.2014.00008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 01/10/2014] [Indexed: 12/03/2022] Open
Abstract
When faced with visual uncertainty during motor performance, humans rely more on predictive forward models and proprioception and attribute lesser importance to the ambiguous visual feedback. Though disrupted predictive control is typical of patients with cerebellar disease, sensorimotor deficits associated with the involuntary and often unconscious nature of l-DOPA-induced dyskinesias in Parkinson’s disease (PD) suggests dyskinetic subjects may also demonstrate impaired predictive motor control. Methods: We investigated the motor performance of 9 dyskinetic and 10 non-dyskinetic PD subjects on and off l-DOPA, and of 10 age-matched control subjects, during a large-amplitude, overlearned, visually guided tracking task. Ambiguous visual feedback was introduced by adding “jitter” to a moving target that followed a Lissajous pattern. Root mean square (RMS) tracking error was calculated, and ANOVA, robust multivariate linear regression, and linear dynamical system analyses were used to determine the contribution of speed and ambiguity to tracking performance. Results: Increasing target ambiguity and speed contributed significantly more to the RMS error of dyskinetic subjects off medication. l-DOPA improved the RMS tracking performance of both PD groups. At higher speeds, controls and PDs without dyskinesia were able to effectively de-weight ambiguous visual information. Conclusion: PDs’ visually guided motor performance degrades with visual jitter and speed of movement to a greater degree compared to age-matched controls. However, there are fundamental differences in PDs with and without dyskinesia: subjects without dyskinesia are generally slow, and less responsive to dynamic changes in motor task requirements, but in PDs with dyskinesia, there was a trade-off between overall performance and inappropriate reliance on ambiguous visual feedback. This is likely associated with functional changes in posterior parietal–ponto–cerebellar pathways.
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Affiliation(s)
- James K R Stevenson
- Kinsmen Laboratory of Neurological Research, Department of Neuroscience, University of British Columbia , Vancouver, BC , Canada
| | - Chonho Lee
- School of Computer Engineering, Nanyang Technological University , Singapore , Singapore
| | - Bu-Sung Lee
- School of Computer Engineering, Nanyang Technological University , Singapore , Singapore
| | - Pouria Talebifard
- Department of Electrical and Computer Engineering, University of British Columbia , Vancouver, BC , Canada
| | - Edna Ty
- Pacific Parkinson's Research Centre, University Hospital, University of British Columbia , Vancouver, BC , Canada
| | - Kristina Aseeva
- Pacific Parkinson's Research Centre, University Hospital, University of British Columbia , Vancouver, BC , Canada
| | - Meeko M K Oishi
- Department of Electrical and Computer Engineering, University of New Mexico , Albuquerque, NM , USA
| | - Martin J McKeown
- Kinsmen Laboratory of Neurological Research, Department of Neuroscience, University of British Columbia , Vancouver, BC , Canada ; Department of Electrical and Computer Engineering, University of British Columbia , Vancouver, BC , Canada ; Pacific Parkinson's Research Centre, University Hospital, University of British Columbia , Vancouver, BC , Canada
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Xun Chen, Chen He, Wang ZJ, McKeown MJ. An IC-PLS Framework for Group Corticomuscular Coupling Analysis. IEEE Trans Biomed Eng 2013; 60:2022-33. [DOI: 10.1109/tbme.2013.2248059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lewis MM, Galley S, Johnson S, Stevenson J, Huang X, McKeown MJ. The role of the cerebellum in the pathophysiology of Parkinson's disease. Can J Neurol Sci 2013; 40:299-306. [PMID: 23603164 PMCID: PMC6939223 DOI: 10.1017/s0317167100014232] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Parkinson's disease (PD), the most common neurodegenerative movement disorder, has traditionally been considered a "classic" basal ganglia disease, as the most obvious pathology is seen in the dopaminergic cells in the substantia nigra pars compacta. Nevertheless recent discoveries in anatomical connections linking the basal ganglia and the cerebellum have led to a re-examination of the role of the cerebellum in the pathophysiology of PD. This review summarizes the role of the cerebellum in explaining many curious features of PD: the significant variation in disease progression between individuals; why severity of dopaminergic deficit correlates with many features of PD such as bradykinesia, but not tremor; and why PD subjects with a tremor-predominant presentation tend to have a more benign prognosis. It is clear that the cerebellum participates in compensatory mechanisms associated with the disease and must be considered an essential contributor to the overall pathophysiology of PD.
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Affiliation(s)
- Mechelle M Lewis
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey PA, USA Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey PA, USA
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Chiang J, Wang ZJ, McKeown MJ. A multiblock PLS model of cortico-cortical and corticomuscular interactions in Parkinson's disease. Neuroimage 2012; 63:1498-509. [DOI: 10.1016/j.neuroimage.2012.08.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 08/01/2012] [Accepted: 08/07/2012] [Indexed: 11/30/2022] Open
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Sonia Angeline M, Chaterjee P, Anand K, Ambasta RK, Kumar P. Rotenone-induced parkinsonism elicits behavioral impairments and differential expression of parkin, heat shock proteins and caspases in the rat. Neuroscience 2012; 220:291-301. [PMID: 22710069 DOI: 10.1016/j.neuroscience.2012.06.021] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 05/18/2012] [Accepted: 06/07/2012] [Indexed: 02/07/2023]
Abstract
Rotenone is a pesticide that inhibits mitochondrial complex I activity, thus creating an environment of oxidative stress in the cell. Many studies have employed rotenone to generate an experimental animal model of Parkinson's disease (PD) that mimics and elicits PD-like symptoms, such as motor and cognitive decline. Cytoprotective proteins including parkin and heat shock proteins (HSPs) play major roles in slowing PD progression. Moreover, evidence suggests that mitochondrial dysfunction and oxidative stress-dependent apoptotic pathways contribute to dopaminergic neuron degeneration in PD. Here, rats were chronically exposed to rotenone to confirm that it causes a debilitating phenotype and various behavioral defects. We also performed histopathological examinations of nigrostriatal, cortical and cerebellar regions of rotenone-treated brain to elucidate a plausible neurodegenerative mechanism. The results of silver, tyrosine hydroxylase (TH), parkin, ubiquitin and caspase staining of brain tissue sections further validated our findings. The stress response is known to trigger HSP in response to pharmacological insult. These protective proteins help maintain cellular homeostasis and may be capable of rescuing cells from death. Therefore, we assessed the levels of different HSPs in the rotenone-treated animals. Collectively, our studies indicated the following findings in the striatum and substantia nigra following chronic rotenone exposure in an experimental PD model: (i) behavioral deficit that correlated with histopathological changes and down regulation of TH signaling, (ii) decreased levels of the cytoprotective proteins parkin, DJ1 and Hsp70 and robust expression of mitochondrial chaperone Hsp60 according to Western blot, (iii) increased immunoreactivity for caspase 9, caspase 3 and ubiquitin and decreased parkin immunoreactivity.
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Affiliation(s)
- M Sonia Angeline
- Functional Genomics and Cancer Biology Laboratory, Center for Medical Engineering, Vellore Institute of Technology, Vellore, TN 632014, India
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Quinn JG, Coulson DTR, Brockbank S, Beyer N, Ravid R, Hellemans J, Irvine GB, Johnston JA. α-Synuclein mRNA and soluble α-synuclein protein levels in post-mortem brain from patients with Parkinson's disease, dementia with Lewy bodies, and Alzheimer's disease. Brain Res 2012; 1459:71-80. [PMID: 22560502 DOI: 10.1016/j.brainres.2012.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 04/06/2012] [Accepted: 04/07/2012] [Indexed: 10/28/2022]
Abstract
α-Synuclein is a neuronal protein implicated in the etiology of Parkinson's disease (PD) and dementia with Lewy bodies (DLB). Whilst increased α-synuclein expression due to gene duplication or triplication can cause familial PD, previous studies of α-synuclein levels in idiopathic disease have produced conflicting data. We quantified α-synuclein mRNA and soluble protein in five human post-mortem brain regions from four groups of individuals with PD, DLB, Alzheimer's disease (AD) and matched controls. α-Synuclein mRNA levels, measured using quantitative real-time PCR, did not differ significantly between groups in any brain regions examined. In contrast, levels of soluble α-synuclein protein, measured by ELISA, were significantly lower in 4 of the 5 regions for patients with DLB, and in 2 of the 5 regions for patients with PD, compared to controls. Soluble α-synuclein protein levels were not significantly different in the AD patients, compared to controls, in 4 of the 5 regions. This study indicates that although levels of soluble α-synuclein protein are lower in DLB and PD, there is no evidence for a corresponding decrease in α-synuclein mRNA levels. This might result from altered translation, or removal of α-synuclein protein from a soluble detectable state, either by turnover or conversion to an insoluble form.
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Affiliation(s)
- Joseph G Quinn
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, N. Ireland, UK
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Dyskinetic Parkinson’s disease patients demonstrate motor abnormalities off medication. Exp Brain Res 2011; 214:471-9. [DOI: 10.1007/s00221-011-2845-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 08/14/2011] [Indexed: 10/17/2022]
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