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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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DESCARRIES, LaurentTél. (514) 343-7070 Pathologie et biologie cellulaireUniversité <strong>de</strong> MontréalC.P. 6128, Succ. Centre-vil<strong>le</strong>, MontréalFax (514) 343-5755 Canada H3C 3J7URL site WWW:E-Mail: laurent.<strong>de</strong>scarries@umontreal.ca URL personnel CV:DESCARRIES, LaurentStatut universitaire / University statusProfesseur titulairePathologie et biologie cellulaire et PhysiologieFaculté <strong>de</strong> mé<strong>de</strong>cineUniversité <strong>de</strong> MontréalAppartenance à d'autres <strong>groupe</strong>s / Affiliation with other groupsAdjunct Professor, Department of Neurology and Neuro<strong>sur</strong>gery, McGill UniversityFormation / TrainingM.D., Université <strong>de</strong> Montréal, 1961Hôpitaux Notre-Dame et Maisonneuve-Rosemont, Neurologie, 1961-1963Stages <strong>de</strong> <strong>recherche</strong>, Massachusetts General Hospital, Harvard University, Neurologie et neuropathologie expérimenta<strong>le</strong>s, 1963-1967CSPQ, FRCP(C), 1966Postdoctorat, Département <strong>de</strong> Biologie du CEA, Centre d'Étu<strong>de</strong>s Nucléaires <strong>de</strong> Saclay, France, Neurobiologie cellulaire, 1967-1969Orientations <strong>de</strong> la <strong>recherche</strong>•Distribution, ultrastructure, développement et capacités adaptatives <strong>de</strong>s neurones à monoamine (dopamine, noradrénaline,sérotonine) et <strong>de</strong>s neurones à acétylcholine dans <strong>le</strong> système <strong>nerveux</strong> <strong>central</strong>.•Distribution fonctionnel<strong>le</strong> (cellulaire et subcellulaire) <strong>de</strong>s récepteurs et transporteurs <strong>de</strong>s neurotransmetteurs dans <strong>le</strong> système <strong>nerveux</strong> <strong>central</strong>.Principaux projets en cours:•Internalisation du récepteur 5-HT1A et traitement aux antidépresseurs: <strong>de</strong> la microscopie é<strong>le</strong>ctronique à l'imagerie cérébra<strong>le</strong>•Distribution subcelllulaire et trafic du récepteur NK1 <strong>de</strong> la substance P dans <strong>le</strong> noyau raphe dorsalis•Distribution et ultrastructure <strong>de</strong> l’innervation à sérotonine du noyau sous-thalamique (rat et singe)•Doub<strong>le</strong> phénotype glutamatergique <strong>de</strong>s neurones à dopamine du mésencépha<strong>le</strong>.Research orientations•Distribution, fine structure, <strong>de</strong>velopment and adaptive capacities of monoamine (dopamine, noradrenaline, serotonine) andacetylcholine neurons in the <strong>central</strong> nervous system.•Functional distribution (cellular and subcellular) of neurotransmitter receptors and transporters in the <strong>central</strong> nervous system.Current research projects:•Internalization of 5-HT1A receptors and anti<strong>de</strong>pressant treatments: from e<strong>le</strong>ctron microscopy to brain imaging•Subcellular distribution and internalization of substance P NK1 receptors in nuc<strong>le</strong>us raphe dorsalis.•Distribution and fine structural features of the serotonin neurons of the subthalamic nuc<strong>le</strong>us (rat and monkey)•The dual glutamatergic phenotype of mesencephalic dopamine neurons.Publications choisies/Se<strong>le</strong>cted publicationsRiad, M., Rbah, L., Verdurand, M., Aznavour, N., Zimmer, L., and Descarries, L. (2008) Unchanged <strong>de</strong>nsity of 5-HT1A autoreceptors on the plasma membrane of nuc<strong>le</strong>us raphedorsalis neurons in rats chronically treated with fluoxetine. Neuroscience, 151: 692-700.Sibon, I., Benkelfat, C., Gravel, P., Aznavour, N., Costes, N., Mzengeza, S., Booij, L., Baker, G., Soucy, J.-P., Zimmer, L. and Descarries, L. (2008) Decreased [ 18 F]MPPF bindingpotential in the dorsal raphe nuc<strong>le</strong>us after a sing<strong>le</strong> oral dose of fluoxetine: a PET study in healthy volunteers. Biol. Psychiatry, 63: 1135-1140 (and front cover).Parent, M. and Descarries, L. (2008) The acetylcholine innervation of the adult rat thalamus: distribution and ultrastructural features in dorsolateral geniculate, parafascicular andreticular thalamic nuc<strong>le</strong>i. J. Comp. Neurol., 511:678-691.Lacoste, B., Riad, M., Ratte M.-O., Boye, S.M., Lévesque, D. and Descarries, L. (2009) Trafficking of neurokin-1 receptors in serotonin neurons is control<strong>le</strong>d by substance Pwithin the dorsal raphe nuc<strong>le</strong>us. Eur. J. Neurosci., 29: 2303-2314.Bérubé-Carrière, N., Riad, M., Dal Bo, G., Lévesque, D., Tru<strong>de</strong>au, L.É. and Descarries, L. (2009) The dual dopamine-glutamate phenotype of growing mesencephalic neuronsregresses in mature rat brain. J. Comp. Neurol., in press.Page 34

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