Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias
- Autores
- Delfino, M.A.; Stefano, A.V.; Ferrario, Juan Esteban; Taravini, Irene Rita Eloisa; Murer, Mario Gustavo; Gershanik, O.S.
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Repeated treatment with dopamine (DA) receptor agonists strongly potentiates contralateral turning behavior due to selective stimulation of D1 or D2-class receptors in 6-hydroxydopamine (6-OHDA)-lesioned rats. This phenomenon, referred to as sensitization, is believed to be related to the motor response complications (dyskinesias, on-off states) that occur during chronic administration of levodopa in Parkinson’s disease patients. In recent years a new method for the evaluation of abnormal involuntary movements (AIMs) secondary to dopaminergic stimulation in 6-OHDA-lesioned rats was described. These AIMs resemble dyskinesias as seen in parkinsonian patients under levodopa therapy. Our objective was to evaluate the effects of repeated treatment with different regimes of DA agonists on turning behavior and on an AIMs scale in 6-OHDA lesioned rats, with the aim of discriminating between drugs with different dyskinesia-inducing potential. In addition, we explored the effects of a previous exposure to a DA agonist (priming) on the behavioral response to the subsequent administration of a DA agonist with the same or different pharmacologic profile. Our results show that in apomorphine-treated rats, rotational behavior and AIMs run a parallel course of enhancement, while in those receiving quinpirole there is a dissociation, suggesting that they could be mediated by different mechanisms. The finding of a significant priming effect on subsequent testing of 6-OHDA lesioned rats should be borne in mind as the use of these pharmacological tests in the screening of well lesioned animals could lead to an erroneous interpretation of further results on dyskinesias and rotational behavior.
Fil: Delfino MA. ININFA; Argentina. ININFA; Argentina
Fil: Stefano AV. ININFA; Argentina
Fil: Ferrario, Juan Esteban. ININFA; Argentina
Fil: Taravini, Irene Rita Eloisa. ININFA; Argentina
Fil: Murer, Mario Gustavo. FACULTAD DE MEDICINA; Argentina
Fil: Gershanik OS. ININFA; Argentina - Materia
-
6-OHDA-LESIONED RATS
ABNORMAL INVOLUNTARY MOVEMENTS
PARKINSON'S DISEASE
PRIMING
ROTATIONAL BEHAVIOR
SENSITIZATION - 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:11336/94391
Ver los metadatos del registro completo
id |
CONICETDig_fc31b7f9edd388890a66bb9d947c9983 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/94391 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesiasDelfino, M.A.Stefano, A.V.Ferrario, Juan EstebanTaravini, Irene Rita EloisaMurer, Mario GustavoGershanik, O.S.6-OHDA-LESIONED RATSABNORMAL INVOLUNTARY MOVEMENTSPARKINSON'S DISEASEPRIMINGROTATIONAL BEHAVIORSENSITIZATIONhttps://purl.org/becyt/ford/3.5https://purl.org/becyt/ford/3Repeated treatment with dopamine (DA) receptor agonists strongly potentiates contralateral turning behavior due to selective stimulation of D1 or D2-class receptors in 6-hydroxydopamine (6-OHDA)-lesioned rats. This phenomenon, referred to as sensitization, is believed to be related to the motor response complications (dyskinesias, on-off states) that occur during chronic administration of levodopa in Parkinson’s disease patients. In recent years a new method for the evaluation of abnormal involuntary movements (AIMs) secondary to dopaminergic stimulation in 6-OHDA-lesioned rats was described. These AIMs resemble dyskinesias as seen in parkinsonian patients under levodopa therapy. Our objective was to evaluate the effects of repeated treatment with different regimes of DA agonists on turning behavior and on an AIMs scale in 6-OHDA lesioned rats, with the aim of discriminating between drugs with different dyskinesia-inducing potential. In addition, we explored the effects of a previous exposure to a DA agonist (priming) on the behavioral response to the subsequent administration of a DA agonist with the same or different pharmacologic profile. Our results show that in apomorphine-treated rats, rotational behavior and AIMs run a parallel course of enhancement, while in those receiving quinpirole there is a dissociation, suggesting that they could be mediated by different mechanisms. The finding of a significant priming effect on subsequent testing of 6-OHDA lesioned rats should be borne in mind as the use of these pharmacological tests in the screening of well lesioned animals could lead to an erroneous interpretation of further results on dyskinesias and rotational behavior.Fil: Delfino MA. ININFA; Argentina. ININFA; ArgentinaFil: Stefano AV. ININFA; ArgentinaFil: Ferrario, Juan Esteban. ININFA; ArgentinaFil: Taravini, Irene Rita Eloisa. ININFA; ArgentinaFil: Murer, Mario Gustavo. FACULTAD DE MEDICINA; ArgentinaFil: Gershanik OS. ININFA; ArgentinaElsevier Science2004-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94391Delfino, M.A.; Stefano, A.V.; Ferrario, Juan Esteban; Taravini, Irene Rita Eloisa; Murer, Mario Gustavo; et al.; Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias; Elsevier Science; Behavioural Brain Research; 152; 2; 7-2004; 297-3060166-4328CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0166432803003735info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bbr.2003.10.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:32Zoai:ri.conicet.gov.ar:11336/94391instacron: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:34982025-09-29 10:30:32.571CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
title |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
spellingShingle |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias Delfino, M.A. 6-OHDA-LESIONED RATS ABNORMAL INVOLUNTARY MOVEMENTS PARKINSON'S DISEASE PRIMING ROTATIONAL BEHAVIOR SENSITIZATION |
title_short |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
title_full |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
title_fullStr |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
title_full_unstemmed |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
title_sort |
Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias |
dc.creator.none.fl_str_mv |
Delfino, M.A. Stefano, A.V. Ferrario, Juan Esteban Taravini, Irene Rita Eloisa Murer, Mario Gustavo Gershanik, O.S. |
author |
Delfino, M.A. |
author_facet |
Delfino, M.A. Stefano, A.V. Ferrario, Juan Esteban Taravini, Irene Rita Eloisa Murer, Mario Gustavo Gershanik, O.S. |
author_role |
author |
author2 |
Stefano, A.V. Ferrario, Juan Esteban Taravini, Irene Rita Eloisa Murer, Mario Gustavo Gershanik, O.S. |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
6-OHDA-LESIONED RATS ABNORMAL INVOLUNTARY MOVEMENTS PARKINSON'S DISEASE PRIMING ROTATIONAL BEHAVIOR SENSITIZATION |
topic |
6-OHDA-LESIONED RATS ABNORMAL INVOLUNTARY MOVEMENTS PARKINSON'S DISEASE PRIMING ROTATIONAL BEHAVIOR SENSITIZATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.5 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Repeated treatment with dopamine (DA) receptor agonists strongly potentiates contralateral turning behavior due to selective stimulation of D1 or D2-class receptors in 6-hydroxydopamine (6-OHDA)-lesioned rats. This phenomenon, referred to as sensitization, is believed to be related to the motor response complications (dyskinesias, on-off states) that occur during chronic administration of levodopa in Parkinson’s disease patients. In recent years a new method for the evaluation of abnormal involuntary movements (AIMs) secondary to dopaminergic stimulation in 6-OHDA-lesioned rats was described. These AIMs resemble dyskinesias as seen in parkinsonian patients under levodopa therapy. Our objective was to evaluate the effects of repeated treatment with different regimes of DA agonists on turning behavior and on an AIMs scale in 6-OHDA lesioned rats, with the aim of discriminating between drugs with different dyskinesia-inducing potential. In addition, we explored the effects of a previous exposure to a DA agonist (priming) on the behavioral response to the subsequent administration of a DA agonist with the same or different pharmacologic profile. Our results show that in apomorphine-treated rats, rotational behavior and AIMs run a parallel course of enhancement, while in those receiving quinpirole there is a dissociation, suggesting that they could be mediated by different mechanisms. The finding of a significant priming effect on subsequent testing of 6-OHDA lesioned rats should be borne in mind as the use of these pharmacological tests in the screening of well lesioned animals could lead to an erroneous interpretation of further results on dyskinesias and rotational behavior. Fil: Delfino MA. ININFA; Argentina. ININFA; Argentina Fil: Stefano AV. ININFA; Argentina Fil: Ferrario, Juan Esteban. ININFA; Argentina Fil: Taravini, Irene Rita Eloisa. ININFA; Argentina Fil: Murer, Mario Gustavo. FACULTAD DE MEDICINA; Argentina Fil: Gershanik OS. ININFA; Argentina |
description |
Repeated treatment with dopamine (DA) receptor agonists strongly potentiates contralateral turning behavior due to selective stimulation of D1 or D2-class receptors in 6-hydroxydopamine (6-OHDA)-lesioned rats. This phenomenon, referred to as sensitization, is believed to be related to the motor response complications (dyskinesias, on-off states) that occur during chronic administration of levodopa in Parkinson’s disease patients. In recent years a new method for the evaluation of abnormal involuntary movements (AIMs) secondary to dopaminergic stimulation in 6-OHDA-lesioned rats was described. These AIMs resemble dyskinesias as seen in parkinsonian patients under levodopa therapy. Our objective was to evaluate the effects of repeated treatment with different regimes of DA agonists on turning behavior and on an AIMs scale in 6-OHDA lesioned rats, with the aim of discriminating between drugs with different dyskinesia-inducing potential. In addition, we explored the effects of a previous exposure to a DA agonist (priming) on the behavioral response to the subsequent administration of a DA agonist with the same or different pharmacologic profile. Our results show that in apomorphine-treated rats, rotational behavior and AIMs run a parallel course of enhancement, while in those receiving quinpirole there is a dissociation, suggesting that they could be mediated by different mechanisms. The finding of a significant priming effect on subsequent testing of 6-OHDA lesioned rats should be borne in mind as the use of these pharmacological tests in the screening of well lesioned animals could lead to an erroneous interpretation of further results on dyskinesias and rotational behavior. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-07 |
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/11336/94391 Delfino, M.A.; Stefano, A.V.; Ferrario, Juan Esteban; Taravini, Irene Rita Eloisa; Murer, Mario Gustavo; et al.; Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias; Elsevier Science; Behavioural Brain Research; 152; 2; 7-2004; 297-306 0166-4328 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/94391 |
identifier_str_mv |
Delfino, M.A.; Stefano, A.V.; Ferrario, Juan Esteban; Taravini, Irene Rita Eloisa; Murer, Mario Gustavo; et al.; Behavioral sensitization to different dopamine agonists in a parkinsonian rodent model of drug-induced dyskinesias; Elsevier Science; Behavioural Brain Research; 152; 2; 7-2004; 297-306 0166-4328 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0166432803003735 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bbr.2003.10.009 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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 |
_version_ |
1844614313909682176 |
score |
13.070432 |