Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease
This study aimed to characterize the neurophysiological correlates of gait in the human pedunculopontine nucleus (PPN) region and the globus pallidus internus (GPi) in Parkinson’s disease (PD) cohort. Though much is known about the PPN region through animal studies, there are limited physiological r...
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Frontiers Media S.A.
2020-06-01
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Series: | Frontiers in Human Neuroscience |
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Online Access: | https://www.frontiersin.org/article/10.3389/fnhum.2020.00194/full |
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Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rene Molina Rene Molina Chris J. Hass Chris J. Hass Kristen Sowalsky Kristen Sowalsky Abigail C. Schmitt Abigail C. Schmitt Enrico Opri Enrico Opri Jaime A. Roper Daniel Martinez-Ramirez Christopher W. Hess Christopher W. Hess Kelly D. Foote Kelly D. Foote Michael S. Okun Michael S. Okun Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz |
spellingShingle |
Rene Molina Rene Molina Chris J. Hass Chris J. Hass Kristen Sowalsky Kristen Sowalsky Abigail C. Schmitt Abigail C. Schmitt Enrico Opri Enrico Opri Jaime A. Roper Daniel Martinez-Ramirez Christopher W. Hess Christopher W. Hess Kelly D. Foote Kelly D. Foote Michael S. Okun Michael S. Okun Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease Frontiers in Human Neuroscience Parkinson’s disease (PD) brainstem deep brain stimulation (DBS) gait DBS deep brain stimulation |
author_facet |
Rene Molina Rene Molina Chris J. Hass Chris J. Hass Kristen Sowalsky Kristen Sowalsky Abigail C. Schmitt Abigail C. Schmitt Enrico Opri Enrico Opri Jaime A. Roper Daniel Martinez-Ramirez Christopher W. Hess Christopher W. Hess Kelly D. Foote Kelly D. Foote Michael S. Okun Michael S. Okun Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz Aysegul Gunduz |
author_sort |
Rene Molina |
title |
Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease |
title_short |
Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease |
title_full |
Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease |
title_fullStr |
Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease |
title_full_unstemmed |
Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s Disease |
title_sort |
neurophysiological correlates of gait in the human basal ganglia and the ppn region in parkinson’s disease |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Human Neuroscience |
issn |
1662-5161 |
publishDate |
2020-06-01 |
description |
This study aimed to characterize the neurophysiological correlates of gait in the human pedunculopontine nucleus (PPN) region and the globus pallidus internus (GPi) in Parkinson’s disease (PD) cohort. Though much is known about the PPN region through animal studies, there are limited physiological recordings from ambulatory humans. The PPN has recently garnered interest as a potential deep brain stimulation (DBS) target for improving gait and freezing of gait (FoG) in PD. We used bidirectional neurostimulators to record from the human PPN region and GPi in a small cohort of severely affected PD subjects with FoG despite optimized dopaminergic medications. Five subjects, with confirmed on-dopaminergic medication FoG, were implanted with bilateral GPi and bilateral PPN region DBS electrodes. Electrophysiological recordings were obtained during various gait tasks for 5 months postoperatively in both the off- and on-medication conditions (obtained during the no stimulation condition). The results revealed suppression of low beta power in the GPi and a 1–8 Hz modulation in the PPN region which correlated with human gait. The PPN feature correlated with walking speed. GPi beta desynchronization and PPN low-frequency synchronization were observed as subjects progressed from rest to ambulatory tasks. Our findings add to our understanding of the neurophysiology underpinning gait and will likely contribute to the development of novel therapies for abnormal gait in PD.Clinical Trial Registration:Clinicaltrials.gov identifier; NCT02318927. |
topic |
Parkinson’s disease (PD) brainstem deep brain stimulation (DBS) gait DBS deep brain stimulation |
url |
https://www.frontiersin.org/article/10.3389/fnhum.2020.00194/full |
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doaj-73b548f67c704154aeb9efb3eeaacdb42020-11-25T03:20:37ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612020-06-011410.3389/fnhum.2020.00194516988Neurophysiological Correlates of Gait in the Human Basal Ganglia and the PPN Region in Parkinson’s DiseaseRene Molina0Rene Molina1Chris J. Hass2Chris J. Hass3Kristen Sowalsky4Kristen Sowalsky5Abigail C. Schmitt6Abigail C. Schmitt7Enrico Opri8Enrico Opri9Jaime A. Roper10Daniel Martinez-Ramirez11Christopher W. Hess12Christopher W. Hess13Kelly D. Foote14Kelly D. Foote15Michael S. Okun16Michael S. Okun17Aysegul Gunduz18Aysegul Gunduz19Aysegul Gunduz20Aysegul Gunduz21Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesJ. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Gainesville, FL, United StatesSchool of Kinesiology, Auburn University, Auburn, AL, United StatesTecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, MexicoNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Neurology, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Neurosurgery, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesDepartment of Neurology, University of Florida, Gainesville, FL, United StatesDepartment of Electrical and Computer Engineering, University of Florida, Gainesville, FL, United StatesNorman Fixel Institute for Neurological Diseases and the Program for Movement Disorders and Neurorestoration, University of Florida, Gainesville, FL, United StatesJ. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Gainesville, FL, United StatesDepartment of Neurology, University of Florida, Gainesville, FL, United StatesThis study aimed to characterize the neurophysiological correlates of gait in the human pedunculopontine nucleus (PPN) region and the globus pallidus internus (GPi) in Parkinson’s disease (PD) cohort. Though much is known about the PPN region through animal studies, there are limited physiological recordings from ambulatory humans. The PPN has recently garnered interest as a potential deep brain stimulation (DBS) target for improving gait and freezing of gait (FoG) in PD. We used bidirectional neurostimulators to record from the human PPN region and GPi in a small cohort of severely affected PD subjects with FoG despite optimized dopaminergic medications. Five subjects, with confirmed on-dopaminergic medication FoG, were implanted with bilateral GPi and bilateral PPN region DBS electrodes. Electrophysiological recordings were obtained during various gait tasks for 5 months postoperatively in both the off- and on-medication conditions (obtained during the no stimulation condition). The results revealed suppression of low beta power in the GPi and a 1–8 Hz modulation in the PPN region which correlated with human gait. The PPN feature correlated with walking speed. GPi beta desynchronization and PPN low-frequency synchronization were observed as subjects progressed from rest to ambulatory tasks. Our findings add to our understanding of the neurophysiology underpinning gait and will likely contribute to the development of novel therapies for abnormal gait in PD.Clinical Trial Registration:Clinicaltrials.gov identifier; NCT02318927.https://www.frontiersin.org/article/10.3389/fnhum.2020.00194/fullParkinson’s disease (PD)brainstemdeep brain stimulation (DBS)gaitDBSdeep brain stimulation |