Cited by 49Memory and Neural MechanismsMemory Processes and InfluencesSleep and Wakefulness Research

Infusion of protein synthesis inhibitors in the entorhinal cortex blocks consolidation but not reconsolidation of object recognition memory

Lima, Ramón H., Rossato, Janine I., Furini, Cristiane R., Bevilaqua, Lia R., Izquierdo, Iván, Cammarota, Martín·2009·Neurobiology of Learning and Memory

Abstract

Memory consolidation and reconsolidation require the induction of protein synthesis in some areas of the brain. Here, we show that infusion of the protein synthesis inhibitors anisomycin, emetine and cycloheximide in the entorhinal cortex immediately but not 180 min or 360 min after training in an object recognition learning task hinders long-term memory retention without affecting short-term memory or behavioral performance. Inhibition of protein synthesis in the entorhinal cortex after memory reactivation involving either a combination of familiar and novel objects or two familiar objects does not affect retention. Our data suggest that protein synthesis in the entorhinal cortex is necessary early after training for consolidation of object recognition memory. However, inhibition of protein synthesis in this cortical region after memory retrieval does not seem to affect the stability of the recognition trace.

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Crossref · 10.1016/j.nlm.2008.12.009

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Authors
Lima, R. H., Rossato, J. I., Furini, C. R., Bevilaqua, L. R., Izquierdo, I., & Cammarota, M.
Affiliations
Instituto do Cérebro (BR)
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2009-05
Volume
91
Issue
4
Pages
466-472
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2084582233
Cited by
49
References
78
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2022: 6 · 2021: 2 · 2020: 3 · 2019: 3 · 2017: 3 · 2016: 1 · 2015: 2 · 2014: 4 · 2013: 6 · 2012: 5
FWCI
1.78
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
protein synthesis, entorhinal cortex, memory consolidation, memory reconsolidation, object recognition memory, anisomycin, emetine, cycloheximide, memory reactivation, long-term memory retention, short-term memory
MeSH terms
Animals, Anisomycin, Cycloheximide, Emetine, Male, Memory, Short-Term, Protein Synthesis Inhibitors, Rats, Wistar, Entorhinal Cortex, Recognition, Psychology, Pattern Recognition, Physiological, Rats

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