Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia

When subjects are exposed to new learning experiences, the novel information could be acquired and eventually stored through memory consolidation process. The exposure of mice to a novel experience (a hole-board) after being trained in an inhibitory avoidance apparatus is followed by impaired perfor...

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Authors: Blake, Mariano Guillermo, Boccia, Mariano Martin, Krawczyk, Maria del Carmen, Baratti, Carlos Maria
Format: article
Status:Published version
Publication Date:2013
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/16518
Online Access:http://hdl.handle.net/11336/16518
Access Level:Open access
Keyword:Memory Retrieval
Memory Reconsolidation
Α7-Nicotinic Receptors
Learning Interference
Memory Expression
Novelty
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
id AR_9d8a3e2102a6076ee2b482df351f7700
oai_identifier_str oai:ri.conicet.gov.ar:11336/16518
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
title Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
spellingShingle Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
Blake, Mariano Guillermo
Memory Retrieval
Memory Reconsolidation
Α7-Nicotinic Receptors
Learning Interference
Memory Expression
Novelty
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
title_short Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
title_full Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
title_fullStr Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
title_full_unstemmed Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
title_sort Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia
dc.creator.none.fl_str_mv Blake, Mariano Guillermo
Boccia, Mariano Martin
Krawczyk, Maria del Carmen
Baratti, Carlos Maria
author Blake, Mariano Guillermo
author_facet Blake, Mariano Guillermo
Boccia, Mariano Martin
Krawczyk, Maria del Carmen
Baratti, Carlos Maria
author_role author
author2 Boccia, Mariano Martin
Krawczyk, Maria del Carmen
Baratti, Carlos Maria
author2_role author
author
author
dc.subject.none.fl_str_mv Memory Retrieval
Memory Reconsolidation
Α7-Nicotinic Receptors
Learning Interference
Memory Expression
Novelty
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
topic Memory Retrieval
Memory Reconsolidation
Α7-Nicotinic Receptors
Learning Interference
Memory Expression
Novelty
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
description When subjects are exposed to new learning experiences, the novel information could be acquired and eventually stored through memory consolidation process. The exposure of mice to a novel experience (a hole-board) after being trained in an inhibitory avoidance apparatus is followed by impaired performance of the avoidance memory in subsequent tests. The same impairing effect is produced when mice are exposed to the novel environment after the reactivation of the avoidance memory. This interfering effect is due to impaired consolidation or reconsolidation of the avoidance memory. The administration of the α7-nicotinic receptor agonist choline (Ch) in the dorsal hippocampus (0.8 μg/hippocampus) immediately after the inhibitory avoidance memory reactivation, allowed memory recovery. This effect of Ch was time-dependent, and retention performance was not affected in drug-treated mice that were not subjected to memory reactivation, suggesting that the effects on performance are not due to non-specific effects of the drug. The effects of Ch also depended on the age of the reactivated memory. Altogether, our results suggest that Ch exerts its effects by modulating memory reconsolidation, and that the memory impairment induced by new learning is a memory expression failure and not a storage deficit. Therefore, reconsolidation, among other functions, might serve to change whether a memory will be expressed in later tests. Summarizing, our results open new avenues about the behavioral significance and the physiological functions of memory reconsolidation, providing new strategies for recovering memories from some types of amnesia.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/16518
Blake, Mariano Guillermo; Boccia, Mariano Martin; Krawczyk, Maria del Carmen; Baratti, Carlos Maria; Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia; Elsevier Inc; Neurobiology of Learning and Memory; 106; 10-2013; 531-543
1074-7427
url http://hdl.handle.net/11336/16518
identifier_str_mv Blake, Mariano Guillermo; Boccia, Mariano Martin; Krawczyk, Maria del Carmen; Baratti, Carlos Maria; Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia; Elsevier Inc; Neurobiology of Learning and Memory; 106; 10-2013; 531-543
1074-7427
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1074742713001780
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.nlm.2013.09.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Inc
publisher.none.fl_str_mv Elsevier Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799196195991584768
spelling Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesiaBlake, Mariano GuillermoBoccia, Mariano MartinKrawczyk, Maria del CarmenBaratti, Carlos MariaMemory RetrievalMemory ReconsolidationΑ7-Nicotinic ReceptorsLearning InterferenceMemory ExpressionNoveltyhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3When subjects are exposed to new learning experiences, the novel information could be acquired and eventually stored through memory consolidation process. The exposure of mice to a novel experience (a hole-board) after being trained in an inhibitory avoidance apparatus is followed by impaired performance of the avoidance memory in subsequent tests. The same impairing effect is produced when mice are exposed to the novel environment after the reactivation of the avoidance memory. This interfering effect is due to impaired consolidation or reconsolidation of the avoidance memory. The administration of the α7-nicotinic receptor agonist choline (Ch) in the dorsal hippocampus (0.8 μg/hippocampus) immediately after the inhibitory avoidance memory reactivation, allowed memory recovery. This effect of Ch was time-dependent, and retention performance was not affected in drug-treated mice that were not subjected to memory reactivation, suggesting that the effects on performance are not due to non-specific effects of the drug. The effects of Ch also depended on the age of the reactivated memory. Altogether, our results suggest that Ch exerts its effects by modulating memory reconsolidation, and that the memory impairment induced by new learning is a memory expression failure and not a storage deficit. Therefore, reconsolidation, among other functions, might serve to change whether a memory will be expressed in later tests. Summarizing, our results open new avenues about the behavioral significance and the physiological functions of memory reconsolidation, providing new strategies for recovering memories from some types of amnesia.Fil: Blake, Mariano Guillermo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Boccia, Mariano Martin. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Krawczyk, Maria del Carmen. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Baratti, Carlos Maria. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Inc2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16518Blake, Mariano Guillermo; Boccia, Mariano Martin; Krawczyk, Maria del Carmen; Baratti, Carlos Maria; Hippocampal α7-nicotinic cholinergic receptors modulate memory reconsolidation: a potential strategy for recovery from amnesia; Elsevier Inc; Neurobiology of Learning and Memory; 106; 10-2013; 531-5431074-7427enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1074742713001780info:eu-repo/semantics/altIdentifier/doi/10.1016/j.nlm.2013.09.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:18:25Zoai:ri.conicet.gov.ar:11336/16518instacron: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:34982024-05-08 14:18:25.484CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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