Abstract

The prevalence of cognitive decline is increasing as the ageing population is considerably growing. Restricting this age-associated process has become a challenging public health issue. The age-related increase in oxidative stress plays a major role in cognitive decline, because of its harmful effect on functional plasticity of the brain, such as long-term potentiation (LTP). Here, we show that citrulline (Cit) has powerful antioxidant properties that can limit ex vivo oxidative stress-induced LTP impairment in the hippocampus. We also illustrate that a three-month Cit supplementation has a protective effect on LTP in aged rats in vivo. The identification of a Cit oxidation byproduct in vitro suggests that the antioxidant properties of Cit could result from its own oxidation. Cit supplementation may be a promising preventive nutritional approach to limit age-related cognitive decline.

Details

Title
Citrulline prevents age-related LTP decline in old rats
Author
Ginguay, Antonin 1 ; Regazzetti, Anne 2 ; Laprevote, Olivier 2 ; Moinard, Christophe 3 ; Jean-Pascal De Bandt 4 ; Cynober, Luc 4 ; Billard, Jean-Marie 5 ; Allinquant, Bernadette 5 ; Dutar, Patrick 6 

 Centre de Psychiatrie et Neurosciences, UMR_S894, INSERM, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Service de Biochimie, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, AP-HP, Paris, France; EA4466 Laboratoire de Biologie de la Nutrition, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France 
 UMR CNRS 8638 COMETE - Chimie Toxicologie Analytique et Cellulaire, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France 
 EA4466 Laboratoire de Biologie de la Nutrition, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Laboratoire de bioénergétique fondamentale et appliquée, Université Grenoble Alpes, INSERM U1055, Grenoble, France 
 Service de Biochimie, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, AP-HP, Paris, France; EA4466 Laboratoire de Biologie de la Nutrition, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France 
 Centre de Psychiatrie et Neurosciences, UMR_S894, INSERM, Université Paris Descartes, Sorbonne Paris Cité, Paris, France 
 Centre de Psychiatrie et Neurosciences, UMR_S894, INSERM, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Biophotonics and Synapse Physiopathology, Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, and Université Paris-Saclay, Orsay, France 
Pages
1-10
Publication year
2019
Publication date
Dec 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2330968787
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.