Name: spinal cord electrophysiology ii: extracellular suction electrode fabrication
Uploaded: 2011-02-20T23:59:00
Description: Watch this Scientific Journal Video about Spinal Cord Electrophysiology II: Extracellular Suction Electrode Fabrication at JoVE.com

Samuel L. Pfaff es profesor en el Laboratorio de Expresión Génica en el Instituto Salk de Estudios Biológicos y un investigador en el Instituto Médico Howard Hughes. Este trabajo fue apoyado por el Christopher y Dana Reeve Foundation. Joe Belcovson, Schnoeker Kent y Mike Sullivan en Recursos Multimedia en el Instituto Salk proporcionó asistencia con la fotografía y la edición.

Registros electrofisiológicos de la médula espinal aislada puede revelar cambios genéticos y del desarrollo de circuitos neuronales 1. Hemos demostrado previamente un método para analizar los cables neonatal espinal de ratón 2. Aquí presentamos un método para preparar electrodos de succión útil en la grabación de la locomoción ficticia en la médula espinal aislada 3. La punta de un electrodo de un tubo de plástico se pueden extraer de una punta m...

<ol>
	<li>Gallarda, B. W., Sharpee, T. O., Pfaff, S. L., Alaynick, W. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Defining+rhythmic+locomotor+burst+patterns+using+a+continuous+wavelet+transform.">Defining rhythmic locomotor burst patterns using a continuous wavelet transform.</a> Ann N Y Acad Sci. 1198, 133-139 (2010).</li><li>Meyer, A., Gallarda, B. W., Pfaff, S., Alaynick, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spinal+cord+electrophysiology.">Spinal cord electrophysiology.</a> J Vis Exp. , (2010).</li><li>Gallarda, B. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Segregation+of+axial+motor+and+sensory+pathways+via+heterotypic+trans-axonal+signaling.">Segregation of axial motor and sensory pathways via heterotypic trans-axonal signaling.</a> Science. 320, 233-236 (2008).</li><li>Landmesser, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+development+of+motor+projection+patterns+in+the+chick+hind+limb.">The development of motor projection patterns in the chick hind limb.</a> J Physiol. 284, 391-414 (1978).</li><li>Myers, C. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cholinergic+input+is+required+during+embryonic+development+to+mediate+proper+assembly+of+spinal+locomotor+circuits.">Cholinergic input is required during embryonic development to mediate proper assembly of spinal locomotor circuits.</a> Neuron. 46, 37-49 (2005).</li><li>Chanin, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+determination+of+chloride+by+use+of+the+silver-silver+chloride+electrode.">The determination of chloride by use of the silver-silver chloride electrode.</a> Science. 119, 323-324 (1954).</li><li>Goulding, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Circuits+controlling+vertebrate+locomotion:+moving+in+a+new+direction.">Circuits controlling vertebrate locomotion: moving in a new direction.</a> Nat Rev Neurosci. 10, 507-518 (2009).</li></ol>

Desarrollo del sistema nervioso pueden ser estudiados usando los cables aislados de roedores espinal. En presencia de los neurotransmisores, la locomoción ficticia puede ser generada a partir de la médula espinal en forma de patrones de actividad eléctrica 1,3. Estas explosiones rítmicas se producen en el 0,2 a 0,5 Hz y siguen el modelo de alternancia izquierda-derecha y flexor extensor. En diferentes etapas de desarrollo, la solidez y los patrones de esta actividad varía de 1. Las mutaciones ...

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<td>PTFE Sub Lite Wall Tubing (Small tubing)</td>
<td>&nbsp;</td>
<td>Zeus</td>
<td>36AWG</td>
<td>0.005&#x201D;ID x 0.003&#x201D; Wall (Small Parts) Also available in 0.003&#x201D; to 0.006&#x201D;</td>
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<td>Large tubing (0.86mm (0.34&#x201D;))</td>
<td>&nbsp;</td>
<td>Clay Adams Brand Intramedic Becton Dickinson and Company</td>
<td>427420</td>
<td>0.86mm (0.34&#x201D;) O.D. 1.27mm (.050&#x201D;)</td>
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<td>Electrode Barrel</td>
<td>&nbsp;</td>
<td>A-M Systems</td>
<td>573000</td>
<td>&nbsp;</td>
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<td>Adhesive</td>
<td>&nbsp;</td>
<td>JB Weld</td>
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<td>Adhesive: Silicone caulk</td>
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<td>Bleach</td>
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<td>Xylene</td>
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<td>Silver wire: 0.010&#x201D;</td>
<td>&nbsp;</td>
<td>A-M Systems</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
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<td>Insect pins: Austerlitz 0.1mm</td>
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<td>Fine Science Tools</td>
<td>26002-10</td>
<td>&nbsp;</td>
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<td>Magnetic Stand</td>
<td>&nbsp;</td>
<td>Narishige</td>
<td>GJ-8</td>
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<td>Micromanipulator</td>
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<td>Narishige</td>
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<td>Miniboard (Headstage)</td>
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<td>Polyview Adaptor Unit</td>
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<td>Grass Industries</td>
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<td>Bipolar Portable Physiodata Amplifier System</td>
<td>&nbsp;</td>
<td>Grass Industries</td>
<td>15LT</td>
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<td>ANALOG TO DIGITAL CARD</td>
<td>&nbsp;</td>
<td>National Instruments</td>
<td>6035E</td>
<td>&nbsp;</td>
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<td>Air Table; Vibraplane</td>
<td>&nbsp;</td>
<td>Kinetic Systems</td>
<td>&nbsp;</td>
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spinal cord electrophysiology ii: extracellular suction electrode fabrication

Desarrollo de circuitos neuronales y la locomoción pueden ser estudiados usando roedores recién nacidos la médula espinal centro generador de patrones (CPG) de comportamiento. Demostramos un método para la fabricación de electrodos de succión que se utilizan para examinar la actividad de GPC, o la locomoción ficticia, en los cables de roedores disecados espinal. Los cables de la columna vertebral de roedores se colocan en líquido cefalorraquídeo artificial y las raíces ventrales son atraídos hacia el electrodo de succión. El electrodo se construye mediante la modificación de un electrodo de succión disponible en el mercado. Un hilo de plata pesada se utiliza en lugar del cable estándar proporcionada por el electrodo en el comercio. La punta de vidrio del electrodo comercial se sustituye con una punta de plástico para mayor durabilidad. Preparamos la mano electrodos dibujados y electrodos hechos de tamaños específicos de tubos, lo que permite la consistencia y la reproducibilidad. Los datos se recopilaron mediante un amplificador y un software de adquisición de neurogram. Las grabaciones se realizaron en una mesa de aire dentro de una jaula de Faraday para evitar la interferencia mecánica y eléctrica, respectivamente.

Watch this Scientific Journal Video about Spinal Cord Electrophysiology II: Extracellular Suction Electrode Fabrication at JoVE.com

Spinal Cord Electrophysiology II: Extracellular Suction Electrode Fabrication

Una demostración de la fabricación y el uso de un electrodo de succión extracelular para medir los registros electrofisiológicos de los cables de la columna vertebral de roedores recién nacidos<em&gt; In vitro</em

Médula Espinal Electrofisiología II: Fabricación de electrodos de aspiración extracelular

Development of neural circuitries and locomotion can be studied using neonatal rodent spinal cord central pattern generator (CPG) behavior. We demonstrate ...

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Slice cultures can facilitate the manipulation of  embryo development both pharmacologically and through gene manipulations. In  this reduced system, ...

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La transección de la médula espinal en el pez cebra larval

Mammals fail in sensory and motor recovery following spinal cord injury due to lack of axonal regrowth below the level of injury as well as an inability ...

An Ex Vivo Laser-induced Spinal Cord Injury Model to Assess Mechanisms of Axonal Degeneration in Real-time

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Una<em&gt; Ex Vivo</em&gt; Médula espinal inducida por láser Lesiones modelo para evaluar los mecanismos de degeneración axonal en tiempo real

Injured CNS axons fail to regenerate and often retract away from the injury site. Axons spared from the initial injury may later undergo secondary axonal ...

Electrophysiology on Isolated Brainstem-spinal Cord Preparations from Newborn Rodents Allows Neural Respiratory Network Output Recording

Electrofisiología en aislados Preparativos Cord-tronco cerebral espinal de roedores recién nacidos permite la grabación de salida de red neuronal Respiratorio

While it is well known that the central respiratory drive is located in the brainstem, several aspects of its basic function, development, and response to ...

Investigating Functional Regeneration in Organotypic Spinal Cord Co-cultures Grown on Multi-electrode Arrays

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Adult higher vertebrates have a limited potential to recover from spinal cord injury. Recently, evidence emerged that propriospinal connections are a ...

Spiral Ganglion Neuron Explant Culture and Electrophysiology on Multi Electrode Arrays

Ganglio espiral neurona explante cultura y Electrofisiología de multi electrodos matrices

Spiral ganglion neurons (SGNs) participate in the physiological process of hearing by relaying signals from sensory hair cells to the cochlear nucleus in ...

Spinal Cord Neurons Isolation and Culture from Neonatal Mice

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We present a protocol for the isolation and culture of spinal cord neurons. The neurons are obtained from neonatal C57BL/6 mice and are isolated on ...

Imaging Neural Activity in the Primary Somatosensory Cortex Using Thy1-GCaMP6s Transgenic Mice

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Imágenes de la actividad neuronal en la corteza somatosensorial primaria usando Thy1-ratones transgénicos GCaMP6s

The mammalian brain exhibits marked symmetry across the sagittal plane. However, detailed description of neural dynamics in symmetric brain regions in ...

Laminectomy and Spinal Cord Window Implantation in the Mouse

Laminectomía e implantación de la ventana de la médula espinal en el ratón

This protocol describes a method for spinal cord laminectomy and glass window implantation for in vivo imaging of the mouse spinal cord. An integrated ...

Activity-based Training on a Treadmill with Spinal Cord Injured Wistar Rats

Formación basada en una cinta rodante con la médula espinal lesionado ratas Wistar

Spinal cord injury (SCI) results in lasting deficits that include both mobility and a multitude of autonomic-related dysfunctions. Locomotor training (LT) ...