Research Topics
Genomes and Genes | George Z MentisSummaryAffiliation: Columbia University Country: USA Publications
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Publications
Early functional impairment of sensory-motor connectivity in a mouse model of spinal muscular atrophyGeorge Z Mentis
Section on Developmental Biology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
Neuron 69:453-67. 2011..Deafferentation of motor neurons is an early event in SMA and may be a primary cause of motor dysfunction that is amenable to therapeutic intervention...
Mechanisms regulating the specificity and strength of muscle afferent inputs in the spinal cordGeorge Z Mentis
Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
Ann N Y Acad Sci 1198:220-30. 2010....
Mechanisms of excitation of spinal networks by stimulation of the ventral rootsMichael J O'Donovan
Developmental Neurobiology Section, NINDS, NIH, Bethesda, Maryland, USA
Ann N Y Acad Sci 1198:63-71. 2010..However, motoneurons do not exhibit short latency excitatory potentials in response to ventral root stimulation indicating that the excitatory effects are mediated polysynaptically. We discuss the significance of these findings...
Imaging the spatiotemporal organization of neural activity in the developing spinal cordMichael J O'Donovan
National Institute of Neurological Disorder and Stroke, NIH, Bethesda, Maryland 20892, USA
Dev Neurobiol 68:788-803. 2008..In the last part of the review, we discuss some of the exciting new prospects for the future...
Primary afferent synapses on developing and adult Renshaw cellsGeorge Z Mentis
Laboratory of Neural Control, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA
J Neurosci 26:13297-310. 2006..Similar synaptic weight shifts on interneurons may be involved in the maturation of motor reflexes and locomotor circuitry...
Noncholinergic excitatory actions of motoneurons in the neonatal mammalian spinal cordGeorge Z Mentis
Laboratory of Neural Control, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
Proc Natl Acad Sci U S A 102:7344-9. 2005..Our results raise the possibility that motoneurons release an excitatory amino acid in addition to acetylcholine and that they may be more directly involved in the genesis of mammalian locomotion than previously believed...
Calcium imaging of network function in the developing spinal cordMichael J O'Donovan
Laboratory of Neural Control, Section on Developmental Neurobiology, NINDS, NIH, Bethesda, MD 20892, USA
Cell Calcium 37:443-50. 2005..This finding raises the possibility that the activation of mammalian motoneurons during locomotion may share some of the same rostrocaudally organized mechanisms that evolved to control swimming in fishes...
Imaging nervous system activityDouglas R Fields
Section on Nervous System Development and Plasticity, National Institute of Child Health and Human Development NICHD, NIH, Bethesda, Maryland, USA
Curr Protoc Neurosci . 2009..Although the protocols described here concern spinal networks in culture or an intact in vitro preparation, they can be, and have been, widely used in other parts of the nervous system...
Electroporation loading of calcium-sensitive dyes into the CNSAgnes Bonnot
Laboratory of Neural Control, Section on Developmental Neurobiology, NINDS, National Institutes of Health, 35 Convent Dr, Rm 3C1010, Bethesda, MD 20892, USA
J Neurophysiol 93:1793-808. 2005..We show that these different motor behaviors are characterized by distinct patterns of activation among the labeled populations of cells...
Locomotor-like activity generated by the neonatal mouse spinal cordAgnes Bonnot
Laboratory of Neural Control, Section on Developmental Neurobiology, NINDS, NIH, Bethesda, MD 20892, USA
Brain Res Brain Res Rev 40:141-51. 2002..Finally, our data are discussed in the context of other models of locomotion in lower and higher vertebrates...
Functionally reduced sensorimotor connections form with normal specificity despite abnormal muscle spindle development: the role of spindle-derived neurotrophin 3Neil A Shneider
Section on Developmental Neurobiology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA
J Neurosci 29:4719-35. 2009..These findings indicate that spindle-derived factors regulate the strength of the connections but not their initial formation or their specificity...
Transduction of motor neurons and muscle fibers by intramuscular injection of HIV-1-based vectors pseudotyped with select rabies virus glycoproteinsGeorge Z Mentis
Developmental Neurobiology Section, Basic Neuroscience Program, National Institutes of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892 3700, USA
J Neurosci Methods 157:208-17. 2006..These transduction efficiencies may allow novel approaches to functional studies of the motor system and the treatment of neuromuscular disease...
Ventrolateral origin of each cycle of rhythmic activity generated by the spinal cord of the chick embryoYoshiyasu Arai
Laboratory of Neural Control, Section on Developmental Neurobiology, National Institute of Neurological Disorders and Stroke NINDS, National Institutes of Health NIH, Bethesda, Maryland, United States of America
PLoS ONE 2:e417. 2007..Here we investigate whether the activity of motoneurons occurs before other neuronal populations at the beginning of each cycle of rhythmic discharge...
Chloride-sensitive MEQ fluorescence in chick embryo motoneurons following manipulations of chloride and during spontaneous network activityNikolai Chub
Laboratory of Neural Control, NINDS NIH, Rm 3BC911, 35 Convent Dr, Bethesda, MD 20892 3700, USA
J Neurophysiol 95:323-30. 2006....
Spatiotemporal pattern of motoneuron activation in the rostral lumbar and the sacral segments during locomotor-like activity in the neonatal mouse spinal cordAgnes Bonnot
Laboratory of Neural Control, Section on Developmental Neurobiology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA
J Neurosci 22:RC203. 2002..It is hypothesized that this behavior may simplify the appropriate sequencing of motoneurons during locomotion...
