Cited by 42Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.

Involvement of hippocampal CAMKII/CREB signaling in the spatial memory retention induced by creatine

Abstract

Although Creatine (Cr) and Phosphocreatine (PCr) systems play a key role in cellular energy and energy transport in neuronal cells, its implications for learning and memory are still controversial. Thus, we decided to investigate the involvement of cAMP-dependent protein kinase A (PKA), Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) and cAMP responsive element binding protein (CREB) in the spatial consolidation after an intrahippocampal injection of Cr. Statistical analysis revealed that Cr (2.5 nmol/hippocampus) (post-training) decreased the latency for escape and the mean number of errors on Barnes maze test. Post-training co-administration of the PKA inhibitor (H-89 25 ρmol/hippocampus) did not alter the facilitatory effect of Cr in this memory test. On the other hand, Cr-induced spatial retention was reverted by co-administration of the CaMKII inhibitor (STO-609 5 nmol/hippocampus). Neurochemical analysis revealed that intrahippocampal injection of Cr, when analyzed after 30 min rather than after 3 h, increased the levels of pCREB and pCaMKII but not pPKA levels. Statistical analysis also revealed that the post-training co-administration of STO-609 but not H-89 reversed the increase of pCREB levels induced by Cr. The results presented in this report suggest that intracellular CaMKII/CREB pathway plays a key role in the Cr-induced spatial retention. Thus, it is plausible to propose that Cr plays a putative role as a neuromodulator in the brain, and that at least some of its effects may be mediated by intracellular CaMKII/CREB pathway.

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Crossref · 10.1007/s00726-012-1329-4

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Metadata

Authors
Souza, M. A., Magni, D. V., Guerra, G. P., Oliveira, M. S., Furian, A. F., Pereira, L., Marquez, S. V., Ferreira, J., Fighera, M. R., & Royes, L. F. F.
Affiliations
Universidade Federal de Santa Maria (BR)
Corresponding author
Royes, Luiz Fernando Freire
Venue
Amino Acids
Published
2012-06-05
Volume
43
Issue
6
Pages
2491-2503
ISSN
  • 0939-4451 (ISSN-L)
  • 1438-2199
OpenAlex
W2006708261
Cited by
42
References
52
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 6 · 2022: 2 · 2021: 4 · 2020: 5 · 2019: 3 · 2018: 3 · 2017: 1 · 2016: 1 · 2015: 1 · 2014: 3 · 2013: 2
FWCI
0.98
Type
journal article
Language
en
Open access
closed
Locations
  • Amino Acids (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
creatine, hippocampus, CaMKII, CREB, pKa, cAMP signaling, STO-609, H89, phosphocreatine, memory consolidation, neuromodulators
MeSH terms
Animals, Benzimidazoles, Creatine, Hippocampus, Male, Retention, Psychology, Structure-Activity Relationship, Signal Transduction, Rats, Wistar, Maze Learning, CREB-Binding Protein, Rats, Naphthalimides, Calcium-Calmodulin-Dependent Protein Kinase Type 2

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