Cited by 75Memory and Neural MechanismsMemory Processes and InfluencesSleep and Wakefulness Research

Hippocampal noradrenergic activation is necessary for object recognition memory consolidation and can promote BDNF increase and memory persistence

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Mello-Carpes, Pâmela B., da Silva de Vargas, Liane, Gayer, Mateus Cristofari, Roehrs, Rafael, Izquierdo, Ivan·2016·Neurobiology of Learning and Memory

Abstract

Previously we showed that activation of the Nucleus of the Solitary Tract (NTS)-Nucleus Paragigantocellularis (PGi)-Locus coeruleus (LC) pathway, which theoretically culminates with norepinephrine (NE) release in dorsal hippocampus (CA1 region) and basolateral amygdala (BLA) is necessary for the consolidation of object recognition (OR) memory. Here we show that, while the microinjection of the beta-noradrenergic receptor blocker timolol into CA1 impairs OR memory consolidation, the microinjection of norepinephrine (NE) promotes the persistence of this type of memory. Further, we show that OR consolidation is attended by an increase of norepinephrine (NE) levels and of the expression of brain derived neurotrophic factor (BDNF) in hippocampus, which are impaired by inactivation of the NTS-PGi-LC pathway by the infusion of muscimol into the NTS.

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Authors
Mello-Carpes, P. B., da Silva de Vargas, L., Gayer, M. C., Roehrs, R., & Izquierdo, I.
Affiliations
Universidade Federal do Pampa (BR)
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2016-01
Volume
127
Pages
84-92
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2193912582
Cited by
75
References
39
Citations by year
2026: 9 · 2025: 3 · 2024: 8 · 2023: 9 · 2022: 5 · 2021: 7 · 2020: 7 · 2019: 6 · 2018: 11 · 2017: 7 · 2016: 2
FWCI
4.01
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • CAPES
  • CNPq
  • Federal University of Pampa
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
norepinephrine, object recognition memory, memory consolidation, memory persistence, hippocampal CA1, brain-derived neurotrophic factor, locus coeruleus, timolol, muscimol, basolateral amygdala, noradrenergic activation
MeSH terms
Memory Consolidation, Adrenergic beta-Antagonists, Animals, Exploratory Behavior, Hippocampus, Locus Coeruleus, Male, Muscimol, Norepinephrine, Timolol, N-Methylaspartate, Rats, Wistar, Solitary Nucleus, Excitatory Amino Acid Agonists, Brain-Derived Neurotrophic Factor, Recognition, Psychology, GABA-A Receptor Agonists

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