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groupe de recherche sur le système nerveux central - GRSNC

groupe de recherche sur le système nerveux central - GRSNC

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GIROUARD, HélèneTél. (514) 343-6111 ext.32786 PharmacologieUniversité <strong>de</strong> MontréalC.P. 6128, Succ. Centre-vil<strong>le</strong>, MontréalFax (514) 343-2291 Canada H3C 3J7URL site WWW:E-Mail: he<strong>le</strong>ne.girouard@umontrreal.ca URL personnel CV:GIROUARD, HélèneStatut universitaire / University statusChercheure adjointePharmacologieFaculté <strong>de</strong> mé<strong>de</strong>cineUniversité <strong>de</strong> MontréalAppartenance à d'autres <strong>groupe</strong>s / Affiliation with other groupsMembre associé du Groupe <strong>de</strong> <strong>recherche</strong> <strong>sur</strong> <strong>le</strong> système <strong>nerveux</strong> <strong>central</strong> (<strong>GRSNC</strong>)Membre du Groupe <strong>de</strong> <strong>recherche</strong> universitaire <strong>sur</strong> <strong>le</strong> Médicament (GRUM)Centre <strong>de</strong> <strong>recherche</strong> <strong>de</strong> l’Institut Universitaire <strong>de</strong> Gériatrie <strong>de</strong> Montréal (CRIUGM)Réseau Québécois <strong>de</strong> Recherche <strong>sur</strong> <strong>le</strong> Vieillissement (RQRV)Réseau <strong>de</strong> Bio-Imagerie du QuébecFormation / TrainingPostdoc, University of Vermont, Pharmacologie, 2006-2008Postdoc, Weill Medical Col<strong>le</strong>ge of Cornell University, Neurobiologie, 2003-2006Ph.D., Université <strong>de</strong> Montréal, Physiologie, 1996-2002M.Sc., Université du Québec à Montréal, Biologie, 1993-1996B.Sc., Université du Québec à Montréal, Biologie, 1991-1993Orientations <strong>de</strong> la <strong>recherche</strong>• Étu<strong>de</strong> <strong>de</strong>s mécanismes cellulaires et moléculaire du couplage neurovasculaire et <strong>de</strong> <strong>le</strong>urs dysfonctions reliées à l’hypertension et auvieillissement.• Étu<strong>de</strong>s <strong>de</strong>s dysfonctions neurovasculaires reliées à la démence et aux troub<strong>le</strong>s cognitifs.• I<strong>de</strong>ntification <strong>de</strong>s voies <strong>de</strong> signalisation responsab<strong>le</strong>s <strong>de</strong> la communication astrocyto-vasculaire.Principaux projets en cours:• Etu<strong>de</strong> <strong>de</strong>s mécanismes responsab<strong>le</strong> <strong>de</strong>s dysfonctions du couplage neurovasculaire chez la souris hypertendue.• Etu<strong>de</strong> <strong>de</strong>s mécanismes par <strong>le</strong>squels certaines thérapies anti-hypertensives préviennent la démence et <strong>le</strong>s dysfonctions cognitives.• Etu<strong>de</strong> <strong>de</strong>s mécanismes <strong>de</strong> modulation <strong>de</strong> la signalisation calcique et <strong>de</strong> l’activité <strong>de</strong>s canaux potassiques astrocytaires en fonction<strong>de</strong> la réactivité vasculaire.Research orientations• Cellular and mo<strong>le</strong>cular mechanisms un<strong>de</strong>rlying neurovascular coupling and their dysfunctions related to hypertension and ageing.• Neurovascular impairment in <strong>de</strong>mentia and cognitive dysfunctions.• I<strong>de</strong>ntification of signaling pathways un<strong>de</strong>rlying astrocyte-vascular communication.Current research projects:• Study of the mechanisms un<strong>de</strong>rlying neurovascular coupling impairment in hypertensive mice.• Study of the mechanisms by which anti-hypertensive therapies prevent cognitive dysfunctions and <strong>de</strong>mentia.• Study of astrocytic calcium signaling and potassium channel activity modulation mechanisms in function of vascular reactivity.Publications choisies/Se<strong>le</strong>cted publicationsGirouard H, Ia<strong>de</strong>cola C. Invited Review: Neurovascular coupling in the normal brain and in hypertension, stroke and Alzheimer disease.J. Appl. Physiol. 2006; 100(1): 328-335.Girouard H, Park L, Anrather J, Zhou P, Ia<strong>de</strong>cola C. Angiotensin II attenuates endothelium-<strong>de</strong>pen<strong>de</strong>nt responses in the cerebralmicrocirculation through nox-2-<strong>de</strong>rived radicals. ATVB. 2006; 26(4):826-832.Girouard H, Park L, Anrather J, Zhou P, Ia<strong>de</strong>cola C. Cerebrovascular nitrosative stress mediates neurovascular and endothelial dysfunctioninduced by angiotensin II. ATVB. 2007; 27(2): 303-309.Girouard H, Lessard A, Capone C, Milner TA, Ia<strong>de</strong>cola C. The neurovascular dysfunction induced by angiotensin II in the mouse neocortexis sexually dimorphic.Am J Physiol Heart Circ Physiol. 2008; 294(1): H156-H163.Girouard H, Wang G, Gallo EF, Anrather J, Zhou P, Pickel VM, Ia<strong>de</strong>cola C. NMDA receptor activation increases free radical productionthrough nitric oxi<strong>de</strong> and NOX2. J. Neurosc. 2009; 29(8): 2545-2552.Page 43

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