Pierre Sokoloff
Penn State Milton S. Hershey Medical Center
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Pierre Sokoloff.
Archive | 2012
Renaud Massart; Pierre Sokoloff; Jorge Diaz
The human basal ganglia constitutes a functional neural network located at the base of the forebrain. It receives most of its afferent inputs through the striatum, the major nucleus of the basal ganglia accomplishing fast neurotransmitter-mediated operations through somatotopically organized projections to the principal neuron cell type, the striatal GABAergic spiny projection neurons. This spiny projection neurons, which make up 95 % of the neuron population of striatum (Kemp & Powell 1971), receive excitatory glutamatergic inputs from all areas of the cortex and specific thalamic nuclei (Gerfen & Wilson 1996; Bolam et al., 2000; Voorn et al., 2004; Doig et al., 2010), and also modulatory dopaminergic inputs from the substantia nigra pars compacta (Smith & Kieval 2000; Utter. & Basso 2008). Spiny Projection Neurons include two major subpopulations giving rise to the direct striato-nigral pathway, and the indirect striato-pallidal pathway which communicates information to the basal ganglia output structures; the internal segment of the globus pallidus and the substantia nigra pars reticulata (Smith, Y. & Kieval 2000; Gerfen & Wilson 1996). Although the two neuron subpopulations are GABAergic, they differ in a number of properties including the expression of different complements of dopamine, Adenosine, NMDA and acetylcholine receptor subtypes as well as of peptide content; the direct striato-nigral pathway neurons coexpress substance P and dynorphin, whereas the indirect striatopallidal pathway neurons express enkephalin (Gerfen et al., 1990, 1991; Reiner & Anderson 1990; Gerfen & Wilson 1996; Le Moine & Bloch, 1995). Based on the fact that striatal medium-spiny neurons are the major input targets and the major projection neurons of striatum, it is thought that integration of neurotransmission in these neurons is an important determinant of the functional organization of the striatum. Thus, changes in neurotransmission on striatal spiny projection neurons have been involved in the regulation of voluntary movement, behavioral control, cognitive function and reward mechanisms. For instance, massive spiny projection neuron loss and major dopamine
Archive | 2002
Olivier Guillin; Jorge Diaz; Nathalie Griffon; Jean-Charles Schwartz; Pierre Sokoloff
A diverse role for BDNF (Brain-derived neurotrophic factor) has been inferred from observations that it is anterogradely transported, released upon neuron depolarization and triggers rapid intracellular signals.1’2 Converging evidence implicates the D3 receptor (D3R) in the physiopathology and treatment of various neuropsychiatrie disorders including Parkinson’s disease, 3, 4 schizophrenia, 5, 6 and drug addiction.7, 8 In a rat model of Parkinson’s disease, obtained by unilateral destruction of dopamine neurons by 6- hydroxydopamine (6-OHDA), D3R expression is decreased in the shell part of nucleus accumbens (AccSh) of the denervated side3, by deprivation of BDNF9 synthesized by dopamine neurons. Repeated administration of levodopa triggers D3R overexpression in the denervated striatum3, which is responsible for the development of behavioral sensitization to levodopa. Progressive enhancement of levodopa-induced rotations are blocked by a preferential D3R antagonist3 and induced by a selective partial D3R agonist.8 Here we show that BDNF is also responsible for induction of D3R overexpression in 6- OHDA-lesioned rats, and thereby for behavioral sensitization.
Journal of Biological Chemistry | 2001
Marco Scarselli; Francesca Novi; Ester Schallmach; Ridwan Lin; Alessandra Baragli; Anna Colzi; Nathalie Griffon; Giovanni Corsini; Pierre Sokoloff; Robert Levenson; Zvi Vogel; Roberto Maggio
Archive | 2003
Pierre Sokoloff; Nathalie Griffon; Olivier Guillin; Catherine Pilon; Jean-Charles Schwartz; Jorge Diaz
Archive | 1995
Jean-Louis Peglion; Joel Vian; Bertrand Goument; Mark Millan; Val erie Audinot; Jean-Charles Schwartz; Pierre Sokoloff
Archive | 1996
Jean-Louis Peglion; Joel Vian; Bertrand Goument; Mark Millan; Valérie Audinot; Jean-Charles Schwartz; Pierre Sokoloff
Archive | 1996
Fabrice Garrido; Jeanne Marie Lecomte; André Mann; Jean Schwartz; Pierre Sokoloff; Camille George Wermuth; マン アンドレ; ウェルムス カミーユ−ジョルジュ; シュワルツ ジャン−シャルル; ルコント ジャンヌ−マリー; ソコロフ ピエール; ガリド ファブリス
Archive | 1995
Nathalie Griffon; Pierre Sokoloff; Virginie Mignon; Jorge Diaz; Patricia Facchinetti; Jean-Charles Schwartz
Archive | 2013
Renaud Massart; Jorge Diaz; Pierre Sokoloff
Archive | 2006
Fabrice Garrido; André Mann; Catherine Pilon; Angèle Schoenfelder; Pierre Sokoloff