Does unilateral basal ganglia activity functionally influence the contralateral side? What we can learn from STN stimulation in patients with Parkinson's disease.
Identifieur interne : 000F22 ( Ncbi/Checkpoint ); précédent : 000F21; suivant : 000F23Does unilateral basal ganglia activity functionally influence the contralateral side? What we can learn from STN stimulation in patients with Parkinson's disease.
Auteurs : Yohann Brun [France] ; Carine Karachi ; Sara Fernandez-Vidal ; Nicolas Jodoin ; David Grabli ; Eric Bardinet ; Luc Mallet ; Yves Agid [France] ; Jerome Yelnik ; Marie-Laure WelterSource :
- Journal of neurophysiology [ 1522-1598 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- physiology : Neurons.
- physiopathology : Dyskinesias, Globus Pallidus, Parkinson Disease, Subthalamic Nucleus.
- therapy : Parkinson Disease.
- Aged, Brain Waves, Deep Brain Stimulation, Female, Humans, Male, Middle Aged.
Abstract
In humans, the control of voluntary movement, in which the corticobasal ganglia (BG) circuitry participates, is mainly lateralized. However, several studies have suggested that both the contralateral and ipsilateral BG systems are implicated during unilateral movement. Bilateral improvement of motor signs in patients with Parkinson's disease (PD) has been reported with unilateral lesion or high-frequency stimulation (HFS) of the internal part of the globus pallidus or the subthalamic nucleus (STN-HFS). To decipher the mechanisms of production of ipsilateral movements induced by the modulation of unilateral BG circuitry activity, we recorded left STN neuronal activity during right STN-HFS in PD patients operated for bilateral deep brain stimulation. Left STN single cells were recorded in the operating room during right STN-HFS while patients experienced, or did not experience, right stimulation-induced dyskinesias. Most of the left-side STN neurons (64%) associated with the presence of right dyskinesias were inhibited, with a significant decrease in burst and intraburst frequencies. In contrast, left STN neurons not associated with right dyskinesias were mainly activated (48%), with a predominant increase 4-5 ms after the stimulation pulse and a decrease in oscillatory activity. This suggests that unilateral neuronal STN modulation is associated with changes in the activity of the contralateral STN. The fact that one side of the BG system can influence the functioning of the other could explain the occurrence of bilateral dyskinesias and motor improvement observed in PD patients during unilateral STN-HFS, as a result of a bilateral disruption of the pathological activity in the corticosubcortical circuitry.
DOI: 10.1152/jn.00254.2012
PubMed: 22745463
Affiliations:
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However, several studies have suggested that both the contralateral and ipsilateral BG systems are implicated during unilateral movement. Bilateral improvement of motor signs in patients with Parkinson's disease (PD) has been reported with unilateral lesion or high-frequency stimulation (HFS) of the internal part of the globus pallidus or the subthalamic nucleus (STN-HFS). To decipher the mechanisms of production of ipsilateral movements induced by the modulation of unilateral BG circuitry activity, we recorded left STN neuronal activity during right STN-HFS in PD patients operated for bilateral deep brain stimulation. Left STN single cells were recorded in the operating room during right STN-HFS while patients experienced, or did not experience, right stimulation-induced dyskinesias. Most of the left-side STN neurons (64%) associated with the presence of right dyskinesias were inhibited, with a significant decrease in burst and intraburst frequencies. In contrast, left STN neurons not associated with right dyskinesias were mainly activated (48%), with a predominant increase 4-5 ms after the stimulation pulse and a decrease in oscillatory activity. This suggests that unilateral neuronal STN modulation is associated with changes in the activity of the contralateral STN. The fact that one side of the BG system can influence the functioning of the other could explain the occurrence of bilateral dyskinesias and motor improvement observed in PD patients during unilateral STN-HFS, as a result of a bilateral disruption of the pathological activity in the corticosubcortical circuitry.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Île-de-France</li></region><settlement><li>Paris</li></settlement><orgName><li>Hôpital de la Salpêtrière</li></orgName></list><tree><noCountry><name sortKey="Bardinet, Eric" sort="Bardinet, Eric" uniqKey="Bardinet E" first="Eric" last="Bardinet">Eric Bardinet</name><name sortKey="Fernandez Vidal, Sara" sort="Fernandez Vidal, Sara" uniqKey="Fernandez Vidal S" first="Sara" last="Fernandez-Vidal">Sara Fernandez-Vidal</name><name sortKey="Grabli, David" sort="Grabli, David" uniqKey="Grabli D" first="David" last="Grabli">David Grabli</name><name sortKey="Jodoin, Nicolas" sort="Jodoin, Nicolas" uniqKey="Jodoin N" first="Nicolas" last="Jodoin">Nicolas Jodoin</name><name sortKey="Karachi, Carine" sort="Karachi, Carine" uniqKey="Karachi C" first="Carine" last="Karachi">Carine Karachi</name><name sortKey="Mallet, Luc" sort="Mallet, Luc" uniqKey="Mallet L" first="Luc" last="Mallet">Luc Mallet</name><name sortKey="Welter, Marie Laure" sort="Welter, Marie Laure" uniqKey="Welter M" first="Marie-Laure" last="Welter">Marie-Laure Welter</name><name sortKey="Yelnik, Jerome" sort="Yelnik, Jerome" uniqKey="Yelnik J" first="Jerome" last="Yelnik">Jerome Yelnik</name></noCountry><country name="France"><region name="Île-de-France"><name sortKey="Brun, Yohann" sort="Brun, Yohann" uniqKey="Brun Y" first="Yohann" last="Brun">Yohann Brun</name></region><name sortKey="Agid, Yves" sort="Agid, Yves" uniqKey="Agid Y" first="Yves" last="Agid">Yves Agid</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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