Article (Scientific journals)
Subchronic Alpha-Linolenic Acid Treatment Enhances Brain Plasticity and Exerts an Antidepressant Effect: A Versatile Potential Therapy for Stroke.
Blondeau, Nicolas; Nguemeni, C.; Debruyne, D. N. et al.
2009In Neuropsychopharmacology
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Keywords :
stroke; neurogenesis; antidepressant effects
Abstract :
[en] Omega-3 polyunsaturated fatty acids are known to have therapeutic potential in several neurological and psychiatric disorders. However, the molecular mechanisms of action underlying these effects are not well elucidated. We previously showed that alpha-linolenic acid (ALA) reduced ischemic brain damage after a single treatment. To follow-up this finding, we investigated whether subchronic ALA treatment promoted neuronal plasticity. Three sequential injections with a neuroprotective dose of ALA increased neurogenesis and expression of key proteins involved in synaptic functions, namely, synaptophysin-1, VAMP-2, and SNAP-25, as well as proteins supporting glutamatergic neurotransmission, namely, V-GLUT1 and V-GLUT2. These effects were correlated with an increase in brain-derived neurotrophic factor (BDNF) protein levels, both in vitro using neural stem cells and hippocampal cultures and in vivo, after subchronic ALA treatment. Given that BDNF has antidepressant activity, this led us to test whether subchronic ALA treatment could produce antidepressant-like behavior. ALA-treated mice had significantly reduced measures of depressive-like behavior compared with vehicle-treated animals, suggesting another aspect of ALA treatment that could stimulate functional stroke recovery by potentially combining acute neuroprotection with long-term repair/compensatory plasticity. Indeed, three sequential injections of ALA enhanced protection, either as a pretreatment, wherein it reduced post-ischemic infarct volume 24 h after a 1-hour occlusion of the middle cerebral artery or as post-treatment therapy, wherein it augmented animal survival rates by threefold 10 days after ischemia.Neuropsychopharmacology advance online publication, 29 July 2009; doi:10.1038/npp.2009.84.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Blondeau, Nicolas;  Université de Nice Sophia Antipolis > Institut de Pharmacologie Moléculaires et Cellulaires
Nguemeni, C.;  Institut de Pharmacologie Moléculaires et Cellulaires
Debruyne, D. N.;  Institut de Pharmacologie Moléculaires et Cellulaires
Piens, M.;  Université de Liège - ULiège > Sciences et Gestion de l'Environnement > Physiologie Animale
Wu, X.;  Uniformed Sevices University of the Health Sciences > Department of Neurology and Neuroscience program
Pan, H.;  Uniformed Sevices University of the Health Sciences > Department of Neurology and Neuroscience program
Hu, X.;  Uniformed Sevices University of the Health Sciences > Department of Neurology and Neuroscience program
Gandin, C.;  Institut de Pharmacologie Moléculaires et Cellulaires
Lipsky, R. H.;  George Mason University > Krasnow Institute for Advanced Study
Plumier, Jean-Christophe ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Ecophysiologie et physiologie animale
Marini, A. M.;  Uniformed Sevices University of the Health Sciences > Department of Neurology and Neuroscience program
Heurteaux, Catherine;  université de Nice Sophia Antipolis > Institut de Pharmacologie Moléculaires et Cellulaires
Language :
English
Title :
Subchronic Alpha-Linolenic Acid Treatment Enhances Brain Plasticity and Exerts an Antidepressant Effect: A Versatile Potential Therapy for Stroke.
Publication date :
2009
Journal title :
Neuropsychopharmacology
ISSN :
0893-133X
eISSN :
1740-634X
Publisher :
Nature publishing, London, United Kingdom
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 September 2009

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