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Articles, Cellular/Molecular

Caloric Restriction Increases Learning Consolidation and Facilitates Synaptic Plasticity through Mechanisms Dependent on NR2B Subunits of the NMDA Receptor

Ángela Fontán-Lozano, José Luis Sáez-Cassanelli, Mari Carmen Inda, Mercedes de los Santos-Arteaga, Sergio Antonio Sierra-Domínguez, Guillermo López-Lluch, José María Delgado-García and Ángel Manuel Carrión
Journal of Neuroscience 19 September 2007, 27 (38) 10185-10195; DOI: https://doi.org/10.1523/JNEUROSCI.2757-07.2007
Ángela Fontán-Lozano
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José Luis Sáez-Cassanelli
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Mari Carmen Inda
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Mercedes de los Santos-Arteaga
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Sergio Antonio Sierra-Domínguez
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Guillermo López-Lluch
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José María Delgado-García
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Ángel Manuel Carrión
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Abstract

One of the main focal points of aging research is the search for treatments that will prevent or ameliorate the learning and memory deficiencies associated with aging. Here we have examined the effects of maintaining mature mice on a long-term intermittent fasting diet (L-IFD). We found that L-IFD enhances learning and consolidation processes. We also assessed the long-term changes in synaptic efficiency in these animals. L-IFD mice showed an increase in low-theta-band oscillations, paired-pulse facilitation, and facilitation of long-term synaptic plasticity in the hippocampus with respect to mice fed ad libitum. In addition, we found an increase in the expression of the NMDA receptor subunit NR2B in some brain areas of L-IFD mice. Specific antagonism of this subunit in the hippocampus reversed the beneficial effects of L-IFD. These data provide a molecular and cellular mechanism by which L-IFD may enhance cognition, ameliorating some aging-associated cognitive deficits.

  • intermittent fasting diet
  • learning
  • consolidation
  • hippocampus
  • perirhinal cortex
  • NMDA receptors
  • long-term potentiation
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The Journal of Neuroscience: 27 (38)
Journal of Neuroscience
Vol. 27, Issue 38
19 Sep 2007
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Caloric Restriction Increases Learning Consolidation and Facilitates Synaptic Plasticity through Mechanisms Dependent on NR2B Subunits of the NMDA Receptor
Ángela Fontán-Lozano, José Luis Sáez-Cassanelli, Mari Carmen Inda, Mercedes de los Santos-Arteaga, Sergio Antonio Sierra-Domínguez, Guillermo López-Lluch, José María Delgado-García, Ángel Manuel Carrión
Journal of Neuroscience 19 September 2007, 27 (38) 10185-10195; DOI: 10.1523/JNEUROSCI.2757-07.2007

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Caloric Restriction Increases Learning Consolidation and Facilitates Synaptic Plasticity through Mechanisms Dependent on NR2B Subunits of the NMDA Receptor
Ángela Fontán-Lozano, José Luis Sáez-Cassanelli, Mari Carmen Inda, Mercedes de los Santos-Arteaga, Sergio Antonio Sierra-Domínguez, Guillermo López-Lluch, José María Delgado-García, Ángel Manuel Carrión
Journal of Neuroscience 19 September 2007, 27 (38) 10185-10195; DOI: 10.1523/JNEUROSCI.2757-07.2007
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