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Effects of the PPAR-? agonist fenofibrate on acute and short-term consequences of brain ischemia.


ABSTRACT: In stroke, there is an imperative need to develop disease-modifying drugs able to (1) induce neuroprotection and vasculoprotection, (2) modulate recovery and brain plasticity, and (3) limit the short-term motor and cognitive consequences. We hypothesized that fenofibrate, a peroxisome proliferator-activated receptor-? (PPAR-?) agonist, could exert a beneficial effect on immediate and short-term poststroke consequences related to its pleiotropic mechanisms. Rats or mice were subjected to focal ischemia to determine the effects of acute treatment by fenofibrate on (i) motor and memory impairment, (2) both cerebral and vascular compartments, (3) inflammation, (4) neurogenesis, and (5) amyloid cascade. We show that fenofibrate administration results in both neuronal and vascular protection and prevents the short-term motor and cognitive poststroke consequences by interaction with several mechanisms. Modulation of PPAR-? generates beneficial effects in the immediate poststroke consequences by mechanisms involving the interactions between polynuclear neutrophils and the vessel wall, and microglial activation. Fenofibrate modulates mechanisms involved in neurorepair and amyloid cascade. Our results suggest that PPAR-? agonists could check the key points of a potential disease-modifying effect in stroke.

SUBMITTER: Ouk T 

PROVIDER: S-EPMC3948136 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Effects of the PPAR-α agonist fenofibrate on acute and short-term consequences of brain ischemia.

Ouk Thavarak T   Gautier Sophie S   Pétrault Maud M   Montaigne David D   Maréchal Xavier X   Masse Isabelle I   Devedjian Jean-Christophe JC   Deplanque Dominique D   Bastide Michèle M   Nevière Rémi R   Duriez Patrick P   Staels Bart B   Pasquier Florence F   Leys Didier D   Bordet Régis R  

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 20140108 3


In stroke, there is an imperative need to develop disease-modifying drugs able to (1) induce neuroprotection and vasculoprotection, (2) modulate recovery and brain plasticity, and (3) limit the short-term motor and cognitive consequences. We hypothesized that fenofibrate, a peroxisome proliferator-activated receptor-α (PPAR-α) agonist, could exert a beneficial effect on immediate and short-term poststroke consequences related to its pleiotropic mechanisms. Rats or mice were subjected to focal is  ...[more]

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