Name: whole-cell recordings of light evoked excitatory synaptic currents in the retinal slice
Uploaded: 2008-07-02T15:50:00
Description: Watch this Scientific Journal Video about Whole-cell Recordings of Light Evoked Excitatory Synaptic Currents in the Retinal Slice at JoVE.com

<p class="jove_title"> Soluzioni </p><ul><li> Soluzione intracellulare di cellule gangliari (in mm): 100 K-gluconato, 8 KCl, 1 MgCl <sub>2,</sub> 1 EGTA, 10 HEPES, 4 ATP, GTP 0,5, 90 mM solforodamina B (per la colorazione), portato a pH = 7,4 con KOH </li><li> Soluzione intracellulare di cellule bipolari (in mm): 90 K-gluconato, 8 KCl, 1 MgCl <sub>2,</sub> 10 Bapta, 10 HEPES, 4 ATP, GTP 0,5, 90 mM solforodamina B (per la colorazione), portato a pH = 7,4 con KOH </li><li> Ringer extracellulare della soluzione (in mm): 112 NaCl, 5 Glucosio, 5 HEP...

<ol>
	<li>Cook, P. B., Lukasiewicz, P. D., McReynnolds, J. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=GABA(C)+receptors+control+adaptive+changes+in+a+glycinergic+inhibitory+pathway+in+salamander+retina.">GABA(C) receptors control adaptive changes in a glycinergic inhibitory pathway in salamander retina.</a> <em style='font-style: italic'>Journal of Neuroscience</em>. <b>20</b>, 806-812 (2000).</li><li>Heflin, S. J., Cook, P. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Narrow+and+wide+field+amacrine+cells+fire+action+potentials+in+response+to+depolarization+and+light+stimulation.">Narrow and wide field amacrine cells fire action potentials in response to depolarization and light stimulation.</a> <em style='font-style: italic'>Visual Neuroscience</em>. <b>24</b>, 197-206 (2007).</li><li>Ichinose, T., Shields, C. R., Lukasiewicz, P. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sodium+Channels+in+the+Transient+Retinal+Bipolar+Cells+Enhance+Visual+Responses+in+Ganglion+Cells.">Sodium Channels in the Transient Retinal Bipolar Cells Enhance Visual Responses in Ganglion Cells.</a> <em style='font-style: italic'>J Neurosci.</em>. <b>25</b>, 1856-1865 (2005).</li></ol>

<p> Vantaggi: </p><ol><li> Tutti i tipi di cellule sono accessibili <br /></li><li> Facile identificazione dei tipi di cellule, in particolare se un colorante fluorescente viene aggiunto alla soluzione elettrodo <br /></li><li> Agenti farmacologici possono facilmente raggiungere le cellule bersaglio <br /></li><li> La tecnica di patch clamp consente di indagare il ruolo dei canali ionici diversi nei calcoli della retina. Le stesse informazioni non possono essere ottenute attraverso le registrazioni extracellulare picco o registrazioni con elett...

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		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Multiclamp 700A</td>
<td>Patch Clamp Amplifier</td>
<td>Molecular Devices</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>SZX9</td>
<td>Dissection Micropscope</td>
<td>Olympus</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>BX50WI</td>
<td>Upright Microscope</td>
<td>Olympus</td>
<td>&nbsp;</td>
<td>Equipped with 40x, 10x water immersion objective, fluorescent filters and mercury lamp</td>
</tr>
<tr>
<td>P-97</td>
<td>Micropipette Puller</td>
<td>Sutter Instruments</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Lucivid</td>
<td>Microscope image injector</td>
<td>Mbf bioscience</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>8-channel perfusion system</td>
<td>Microperfusion</td>
<td>Parker Hannfin corporation</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Bits++</td>
<td>Digital Video Processor</td>
<td>Cambridge Research Systems</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Infrared Oculars</td>
<td>Other</td>
<td>ITT</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Adhesive silicone wells</td>
<td>Other</td>
<td>Molecular Probes</td>
<td>&nbsp;</td>
<td>20mm diameter, 1.0mm deep</td>
</tr>
<tr>
<td>Membrane Filters</td>
<td>Filter</td>
<td>Milipore</td>
<td>HAWPO1300</td>
<td>.45&#181;m HA</td>
</tr>
<tr>
<td>Borosilicate Glass Capillaries</td>
<td>Electrode glass</td>
<td>World Precision Instruments</td>
<td>1B150-4</td>
<td>&nbsp;</td>
<tr>
<td>Syringe Filters</td>
<td>Filter</td>
<td>Whatman</td>
<td>6789-0402</td>
<td>4mm filters, .2um Nylon Membrane, Polypropylene housing</td>
</tr>
<tr>
<td>IR camera</td>
<td>Micropscope mounted camera</td>
<td>Sony</td>
<td>SPT-M324</td>
<td>Extrawave HAD, B7W video camera</td>
</tr>
<tr>
<td>Picrotoxin</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P1675</td>
<td>&nbsp;</td>
<tr>
<td>Strychnine</td>
<td>Reagent</td>
<td>Sigma</td>
<td>S0532</td>
<td>&nbsp;</td>
<tr>
<td>Imidazole-4-acetic acid sodium salt</td>
<td>Reagent</td>
<td>Sigma</td>
<td>I7013</td>
<td>&nbsp;</td>
<tr>
<td>Larval tiger salamanders</td>
<td>Animal</td>
<td>Charles E. Sullivan (Nashville, TN)</td>
<td>&nbsp;</td>
<td>&nbsp;</td>		</tbody>
		</table>
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whole-cell recordings of light evoked excitatory synaptic currents in the retinal slice

<p class="jove_content">Usiamo la cellula intera tecnica di patch clamp per lo studio dei circuiti sinaptici che sottende l&#39;elaborazione delle informazioni visive nella retina. In questo video, vi guiderà attraverso il processo di esecuzione a cellula intera registrazioni di luce correnti evocato delle singole cellule nella preparazione fetta della retina. Usiamo il acquatici tigre salamandra come un modello animale. Cominciamo con la descrizione della dissezione degli occhi e mostrare come le fette sono montati per le registrazioni elettrofisiologiche. Una volta che la fetta si trova nella camera di registrazione, dimostriamo come eseguire a cellula intera registrazioni clamp di tensione. Abbiamo poi progetto stimoli visivi sul fotorecettori nella fetta di suscitare luce evocata attuali risposte. Durante la registrazione abbiamo profumato la fetta con agenti farmacologici, per cui un sistema a 8 canali perfusione ci permette di passare velocemente tra diversi agenti. La preparazione fetta della retina è ampiamente usato per le registrazioni di patch clamp nella retina, in particolare per studiare amacrine e cellule bipolari, che non sono accessibili in un tutto-mount preparazione.</p>

Watch this Scientific Journal Video about Whole-cell Recordings of Light Evoked Excitatory Synaptic Currents in the Retinal Slice at JoVE.com

Whole-cell Recordings of Light Evoked Excitatory Synaptic Currents in the Retinal Slice

<p class="jove_content">Questo video mostra il processo di registrazione di tensione a cellula intera pinza nella fetta della retina della tigre salamandra acquatica. Dimostriamo la preparazione della fetta e come effettuare registrazioni di patch clamp durante la stimolazione visiva della retina.</p>

A cellula intera Recordings of Light Evocati eccitatorio Correnti Synaptic nel Slice Retinal

We use the whole-cell patch clamp technique to study the synaptic circuitry that underlies visual information processing in the retina. In this video, we ...

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