Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism
- Autores
- Sanchez, Gonzalo Manuel; Rodriguez, Mariano Julian; Pomata, Pablo Ernesto; Rela, Lorena; Murer, Mario Gustavo
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Striatal cholinergic interneurons show tonic spiking activity in the intact and sliced brain, which stems from intrinsic mechanisms. Because of it, they are also known as "tonically active neurons" (TANs). Another hallmark of TAN electrophysiology is a pause response toappetitiveand aversiveeventsandtoenvironmentalcuesthathavepredicted these eventsduringlearning. Notably,thepause response is lost after the degeneration of dopaminergic neurons in animal models of Parkinson's disease. Moreover, Parkinson's disease patients are in a hypercholinergic state and find some clinical benefit in anticholinergic drugs. Current theories propose that excitatory thalamic inputs conveying information about salient sensory stimuli trigger an intrinsic hyperpolarizing response in the striatal cholinergic interneurons. Moreover, it has been postulated that the loss of the pause response in Parkinson's disease is related to a diminution of IsAHP, a slow outward current that mediates an afterhyperpolarization following a train of action potentials. Here we report that IsAHP induces a marked spike-frequency adaptation in adult rat striatal cholinergic interneurons, inducing an abrupt end of firing during sustained excitation. Chronic loss of dopaminergic neurons markedly reduces IsAHP and spike-frequency adaptation in cholinergic interneurons, allowing them to fire continuously and at higher rates during sustained excitation. These findings provide a plausible explanation for the hypercholinergic state in Parkinson's disease. Moreover, areduction ofIsAHPmay alter synchronization ofcholinergic interneurons with afferent inputs, thus contributing to the loss of the pause response in Parkinson's disease.© 2011 the authors.
Fil: Sanchez, Gonzalo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Rodriguez, Mariano Julian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Pomata, Pablo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Rela, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Murer, Mario Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina - Materia
-
STRIATUM
CHOLINERGIC INTERNEURONS
TONICALLY ACTIVE NEURONS
PARKINSON'S DISEASE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/52028
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Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonismSanchez, Gonzalo ManuelRodriguez, Mariano JulianPomata, Pablo ErnestoRela, LorenaMurer, Mario GustavoSTRIATUMCHOLINERGIC INTERNEURONSTONICALLY ACTIVE NEURONSPARKINSON'S DISEASEhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Striatal cholinergic interneurons show tonic spiking activity in the intact and sliced brain, which stems from intrinsic mechanisms. Because of it, they are also known as "tonically active neurons" (TANs). Another hallmark of TAN electrophysiology is a pause response toappetitiveand aversiveeventsandtoenvironmentalcuesthathavepredicted these eventsduringlearning. Notably,thepause response is lost after the degeneration of dopaminergic neurons in animal models of Parkinson's disease. Moreover, Parkinson's disease patients are in a hypercholinergic state and find some clinical benefit in anticholinergic drugs. Current theories propose that excitatory thalamic inputs conveying information about salient sensory stimuli trigger an intrinsic hyperpolarizing response in the striatal cholinergic interneurons. Moreover, it has been postulated that the loss of the pause response in Parkinson's disease is related to a diminution of IsAHP, a slow outward current that mediates an afterhyperpolarization following a train of action potentials. Here we report that IsAHP induces a marked spike-frequency adaptation in adult rat striatal cholinergic interneurons, inducing an abrupt end of firing during sustained excitation. Chronic loss of dopaminergic neurons markedly reduces IsAHP and spike-frequency adaptation in cholinergic interneurons, allowing them to fire continuously and at higher rates during sustained excitation. These findings provide a plausible explanation for the hypercholinergic state in Parkinson's disease. Moreover, areduction ofIsAHPmay alter synchronization ofcholinergic interneurons with afferent inputs, thus contributing to the loss of the pause response in Parkinson's disease.© 2011 the authors.Fil: Sanchez, Gonzalo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Rodriguez, Mariano Julian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Pomata, Pablo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Rela, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Murer, Mario Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaSociety for Neuroscience2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/52028Sanchez, Gonzalo Manuel; Rodriguez, Mariano Julian; Pomata, Pablo Ernesto; Rela, Lorena; Murer, Mario Gustavo; Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism; Society for Neuroscience; Journal of Neuroscience; 31; 17; 4-2011; 6553-65640270-6474CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1523/JNEUROSCI.6345-10.2011info:eu-repo/semantics/altIdentifier/url/http://www.jneurosci.org/content/31/17/6553info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:21Zoai:ri.conicet.gov.ar:11336/52028instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:49:21.866CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
title |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
spellingShingle |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism Sanchez, Gonzalo Manuel STRIATUM CHOLINERGIC INTERNEURONS TONICALLY ACTIVE NEURONS PARKINSON'S DISEASE |
title_short |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
title_full |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
title_fullStr |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
title_full_unstemmed |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
title_sort |
Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism |
dc.creator.none.fl_str_mv |
Sanchez, Gonzalo Manuel Rodriguez, Mariano Julian Pomata, Pablo Ernesto Rela, Lorena Murer, Mario Gustavo |
author |
Sanchez, Gonzalo Manuel |
author_facet |
Sanchez, Gonzalo Manuel Rodriguez, Mariano Julian Pomata, Pablo Ernesto Rela, Lorena Murer, Mario Gustavo |
author_role |
author |
author2 |
Rodriguez, Mariano Julian Pomata, Pablo Ernesto Rela, Lorena Murer, Mario Gustavo |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
STRIATUM CHOLINERGIC INTERNEURONS TONICALLY ACTIVE NEURONS PARKINSON'S DISEASE |
topic |
STRIATUM CHOLINERGIC INTERNEURONS TONICALLY ACTIVE NEURONS PARKINSON'S DISEASE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Striatal cholinergic interneurons show tonic spiking activity in the intact and sliced brain, which stems from intrinsic mechanisms. Because of it, they are also known as "tonically active neurons" (TANs). Another hallmark of TAN electrophysiology is a pause response toappetitiveand aversiveeventsandtoenvironmentalcuesthathavepredicted these eventsduringlearning. Notably,thepause response is lost after the degeneration of dopaminergic neurons in animal models of Parkinson's disease. Moreover, Parkinson's disease patients are in a hypercholinergic state and find some clinical benefit in anticholinergic drugs. Current theories propose that excitatory thalamic inputs conveying information about salient sensory stimuli trigger an intrinsic hyperpolarizing response in the striatal cholinergic interneurons. Moreover, it has been postulated that the loss of the pause response in Parkinson's disease is related to a diminution of IsAHP, a slow outward current that mediates an afterhyperpolarization following a train of action potentials. Here we report that IsAHP induces a marked spike-frequency adaptation in adult rat striatal cholinergic interneurons, inducing an abrupt end of firing during sustained excitation. Chronic loss of dopaminergic neurons markedly reduces IsAHP and spike-frequency adaptation in cholinergic interneurons, allowing them to fire continuously and at higher rates during sustained excitation. These findings provide a plausible explanation for the hypercholinergic state in Parkinson's disease. Moreover, areduction ofIsAHPmay alter synchronization ofcholinergic interneurons with afferent inputs, thus contributing to the loss of the pause response in Parkinson's disease.© 2011 the authors. Fil: Sanchez, Gonzalo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Rodriguez, Mariano Julian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Pomata, Pablo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Rela, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Murer, Mario Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina |
description |
Striatal cholinergic interneurons show tonic spiking activity in the intact and sliced brain, which stems from intrinsic mechanisms. Because of it, they are also known as "tonically active neurons" (TANs). Another hallmark of TAN electrophysiology is a pause response toappetitiveand aversiveeventsandtoenvironmentalcuesthathavepredicted these eventsduringlearning. Notably,thepause response is lost after the degeneration of dopaminergic neurons in animal models of Parkinson's disease. Moreover, Parkinson's disease patients are in a hypercholinergic state and find some clinical benefit in anticholinergic drugs. Current theories propose that excitatory thalamic inputs conveying information about salient sensory stimuli trigger an intrinsic hyperpolarizing response in the striatal cholinergic interneurons. Moreover, it has been postulated that the loss of the pause response in Parkinson's disease is related to a diminution of IsAHP, a slow outward current that mediates an afterhyperpolarization following a train of action potentials. Here we report that IsAHP induces a marked spike-frequency adaptation in adult rat striatal cholinergic interneurons, inducing an abrupt end of firing during sustained excitation. Chronic loss of dopaminergic neurons markedly reduces IsAHP and spike-frequency adaptation in cholinergic interneurons, allowing them to fire continuously and at higher rates during sustained excitation. These findings provide a plausible explanation for the hypercholinergic state in Parkinson's disease. Moreover, areduction ofIsAHPmay alter synchronization ofcholinergic interneurons with afferent inputs, thus contributing to the loss of the pause response in Parkinson's disease.© 2011 the authors. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/52028 Sanchez, Gonzalo Manuel; Rodriguez, Mariano Julian; Pomata, Pablo Ernesto; Rela, Lorena; Murer, Mario Gustavo; Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism; Society for Neuroscience; Journal of Neuroscience; 31; 17; 4-2011; 6553-6564 0270-6474 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/52028 |
identifier_str_mv |
Sanchez, Gonzalo Manuel; Rodriguez, Mariano Julian; Pomata, Pablo Ernesto; Rela, Lorena; Murer, Mario Gustavo; Reduction of an afterhyperpolarization current increases excitability in striatal cholinergic interneurons in rat parkinsonism; Society for Neuroscience; Journal of Neuroscience; 31; 17; 4-2011; 6553-6564 0270-6474 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1523/JNEUROSCI.6345-10.2011 info:eu-repo/semantics/altIdentifier/url/http://www.jneurosci.org/content/31/17/6553 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Society for Neuroscience |
publisher.none.fl_str_mv |
Society for Neuroscience |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.13397 |