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Long Latency of Evoked Quantal Transmitter Release from Somata of Locus Coeruleus Neurons in Rat Pontine Slices
The locus coeruleus (LC) harbors a compact group of noradrenergic cell bodies projecting to virtually all parts of the central nervous system. By using combined measurements of amperometry and patch-clamp, quantal vesicle release of noradrenaline (NA) was detected as amperometric spikes, after depol...
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Published in: | Proceedings of the National Academy of Sciences - PNAS 2007-01, Vol.104 (4), p.1401-1406 |
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creator | Huang, H.-P. Wang, S.-R. Yao, W. Zhang, C. Zhou, Y. Chen, X.-W. Zhang, B. Xiong, W. Wang, L.-Y. Zheng, L.-H. Landry, M. Hökfelt, T. Xu, Z.-Q. D. Zhou, Z. |
description | The locus coeruleus (LC) harbors a compact group of noradrenergic cell bodies projecting to virtually all parts of the central nervous system. By using combined measurements of amperometry and patch-clamp, quantal vesicle release of noradrenaline (NA) was detected as amperometric spikes, after depolarization of the LC neurons. After a pulse depolarization, the average latency of amperometric spikes was 1,870 ms, whereas the latency of glutamate-mediated excitatory postsynaptic currents was 1.6 ms. A substantial fraction of the depolarization-induced amperometric spikes originated from the somata. In contrast to glutamate-mediated excitatory postsynaptic currents, NA secretion was strongly modulated by the action potential frequency (0.5-50 Hz). Somatodendritic NA release from LC upon enhanced cell activity produced autoinhibition of firing and of NA release. We conclude that, in contrast to classic synaptic transmission, quantal NA release from LC somata is characterized by a number of distinct properties, including long latency and high sensitivity to action potential frequency. |
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In contrast to glutamate-mediated excitatory postsynaptic currents, NA secretion was strongly modulated by the action potential frequency (0.5-50 Hz). Somatodendritic NA release from LC upon enhanced cell activity produced autoinhibition of firing and of NA release. We conclude that, in contrast to classic synaptic transmission, quantal NA release from LC somata is characterized by a number of distinct properties, including long latency and high sensitivity to action potential frequency.</description><identifier>ISSN: 0027-8424</identifier><identifier>EISSN: 1091-6490</identifier><identifier>DOI: 10.1073/pnas.0608897104</identifier><identifier>PMID: 17227848</identifier><language>eng</language><publisher>United States: National Academy of Sciences</publisher><subject>Action Potentials ; Animals ; Behavioral neuroscience ; Biological Sciences ; Brain ; Calcium - metabolism ; Capacitance ; Central nervous system ; Depolarization ; Glutamic Acid - metabolism ; Histograms ; In Vitro Techniques ; Locus Coeruleus - cytology ; Locus Coeruleus - metabolism ; Locus Coeruleus - physiology ; Medicin och hälsovetenskap ; Neurons ; Neurons - metabolism ; Neurotransmitter Agents - metabolism ; Neurotransmitters ; Patch-Clamp Techniques ; Pons - metabolism ; Pons - physiology ; Rats ; Rats, Sprague-Dawley ; Rodents ; Secretion ; Sensors ; Synaptic transmission</subject><ispartof>Proceedings of the National Academy of Sciences - PNAS, 2007-01, Vol.104 (4), p.1401-1406</ispartof><rights>Copyright 2007 The National Academy of Sciences of the United States of America</rights><rights>Copyright National Academy of Sciences Jan 23, 2007</rights><rights>2007 by The National Academy of Sciences of the USA 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c641t-8731088c78d7fae4357b4c91207e2f245ac8df5b887dfde7c46f1b3560fb73043</citedby><cites>FETCH-LOGICAL-c641t-8731088c78d7fae4357b4c91207e2f245ac8df5b887dfde7c46f1b3560fb73043</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.pnas.org/content/104/4.cover.gif</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/25426295$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/25426295$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,315,733,786,790,891,27957,27958,53827,53829,58593,58826</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17227848$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttp://kipublications.ki.se/Default.aspx?queryparsed=id:1929248$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, H.-P.</creatorcontrib><creatorcontrib>Wang, S.-R.</creatorcontrib><creatorcontrib>Yao, W.</creatorcontrib><creatorcontrib>Zhang, C.</creatorcontrib><creatorcontrib>Zhou, Y.</creatorcontrib><creatorcontrib>Chen, X.-W.</creatorcontrib><creatorcontrib>Zhang, B.</creatorcontrib><creatorcontrib>Xiong, W.</creatorcontrib><creatorcontrib>Wang, L.-Y.</creatorcontrib><creatorcontrib>Zheng, L.-H.</creatorcontrib><creatorcontrib>Landry, M.</creatorcontrib><creatorcontrib>Hökfelt, T.</creatorcontrib><creatorcontrib>Xu, Z.-Q. D.</creatorcontrib><creatorcontrib>Zhou, Z.</creatorcontrib><title>Long Latency of Evoked Quantal Transmitter Release from Somata of Locus Coeruleus Neurons in Rat Pontine Slices</title><title>Proceedings of the National Academy of Sciences - PNAS</title><addtitle>Proc Natl Acad Sci U S A</addtitle><description>The locus coeruleus (LC) harbors a compact group of noradrenergic cell bodies projecting to virtually all parts of the central nervous system. By using combined measurements of amperometry and patch-clamp, quantal vesicle release of noradrenaline (NA) was detected as amperometric spikes, after depolarization of the LC neurons. After a pulse depolarization, the average latency of amperometric spikes was 1,870 ms, whereas the latency of glutamate-mediated excitatory postsynaptic currents was 1.6 ms. A substantial fraction of the depolarization-induced amperometric spikes originated from the somata. In contrast to glutamate-mediated excitatory postsynaptic currents, NA secretion was strongly modulated by the action potential frequency (0.5-50 Hz). Somatodendritic NA release from LC upon enhanced cell activity produced autoinhibition of firing and of NA release. We conclude that, in contrast to classic synaptic transmission, quantal NA release from LC somata is characterized by a number of distinct properties, including long latency and high sensitivity to action potential frequency.</description><subject>Action Potentials</subject><subject>Animals</subject><subject>Behavioral neuroscience</subject><subject>Biological Sciences</subject><subject>Brain</subject><subject>Calcium - metabolism</subject><subject>Capacitance</subject><subject>Central nervous system</subject><subject>Depolarization</subject><subject>Glutamic Acid - metabolism</subject><subject>Histograms</subject><subject>In Vitro Techniques</subject><subject>Locus Coeruleus - cytology</subject><subject>Locus Coeruleus - metabolism</subject><subject>Locus Coeruleus - physiology</subject><subject>Medicin och hälsovetenskap</subject><subject>Neurons</subject><subject>Neurons - metabolism</subject><subject>Neurotransmitter Agents - metabolism</subject><subject>Neurotransmitters</subject><subject>Patch-Clamp Techniques</subject><subject>Pons - metabolism</subject><subject>Pons - physiology</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Rodents</subject><subject>Secretion</subject><subject>Sensors</subject><subject>Synaptic transmission</subject><issn>0027-8424</issn><issn>1091-6490</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp9ks1vEzEQxS0EoiFw5gSyOMApre31ru1LJRSVDynioy1ny_GOy6a7drC9hf73OCRqUoQ4WB55fu9pxnoIPafkmBJRnay9ScekIVIqQQl_gCaUKDpruCIP0YQQJmaSM36EnqS0IoSoWpLH6IgKxoTkcoLCIvgrvDAZvL3FweGzm3ANLf46Gp9Njy-j8WnocoaIz6EHkwC7GAZ8EQaTzUaxCHZMeB4gjj2U6hOMMfiEO4_PTcZfgs-dB3zRdxbSU_TImT7Bs909Rd_enV3OP8wWn99_nL9dzGzDaZ5JUdGylBWyFc4Ar2qx5FZRRgQwx3htrGxdvZRStK4FYXnj6LKqG-KWoiK8miKx9U0_YT0u9Tp2g4m3Opiu1KHVu_frbnN0Ak0VU4zLojzdKkt7gNaCz9H09w3udXz3XV-FG02FrEgZfIre7Axi-DFCynrokoW-Nx7CmLTgZUyhZFPI1_8lG6mqRglSwFd_gaswRl8-UDNCK17TP24nW8jGkFIEdzczJXqTFr1Ji96npSheHq6653fxOFhlo9zbcc015YRqN_Z9hl_5wOrfZAFebIFVyiHeEazmrGGqrn4DLQTebA</recordid><startdate>20070123</startdate><enddate>20070123</enddate><creator>Huang, H.-P.</creator><creator>Wang, S.-R.</creator><creator>Yao, W.</creator><creator>Zhang, C.</creator><creator>Zhou, Y.</creator><creator>Chen, X.-W.</creator><creator>Zhang, B.</creator><creator>Xiong, W.</creator><creator>Wang, L.-Y.</creator><creator>Zheng, L.-H.</creator><creator>Landry, M.</creator><creator>Hökfelt, T.</creator><creator>Xu, Z.-Q. D.</creator><creator>Zhou, Z.</creator><general>National Academy of Sciences</general><general>National Acad Sciences</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QR</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TK</scope><scope>7TM</scope><scope>7TO</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>ADTPV</scope><scope>AOWAS</scope><scope>D8T</scope><scope>ZZAVC</scope></search><sort><creationdate>20070123</creationdate><title>Long Latency of Evoked Quantal Transmitter Release from Somata of Locus Coeruleus Neurons in Rat Pontine Slices</title><author>Huang, H.-P. ; Wang, S.-R. ; Yao, W. ; Zhang, C. ; Zhou, Y. ; Chen, X.-W. ; Zhang, B. ; Xiong, W. ; Wang, L.-Y. ; Zheng, L.-H. ; Landry, M. ; Hökfelt, T. ; Xu, Z.-Q. 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D.</au><au>Zhou, Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long Latency of Evoked Quantal Transmitter Release from Somata of Locus Coeruleus Neurons in Rat Pontine Slices</atitle><jtitle>Proceedings of the National Academy of Sciences - PNAS</jtitle><addtitle>Proc Natl Acad Sci U S A</addtitle><date>2007-01-23</date><risdate>2007</risdate><volume>104</volume><issue>4</issue><spage>1401</spage><epage>1406</epage><pages>1401-1406</pages><issn>0027-8424</issn><eissn>1091-6490</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>Contributed by T. Hökfelt, December 4, 2006</notes><notes>Author contributions: H.-P.H., S.-R.W., and W.Y. contributed equally to this work; L.-Y.W., T.H., Z.-Q.D.X., and Z.Z. designed research; H.-P.H., S.-R.W., W.Y., C.Z., Y.Z., X.-W.C., B.Z., W.X., L.-H.Z., and M.L. performed research; Z.Z. contributed new reagents/analytic tools; H.-P.H., S.-R.W., W.Y., L.-Y.W., M.L., T.H., Z.-Q.D.X., and Z.Z. analyzed data; and T.H., Z.-Q.D.X., and Z.Z. wrote the paper.</notes><abstract>The locus coeruleus (LC) harbors a compact group of noradrenergic cell bodies projecting to virtually all parts of the central nervous system. By using combined measurements of amperometry and patch-clamp, quantal vesicle release of noradrenaline (NA) was detected as amperometric spikes, after depolarization of the LC neurons. After a pulse depolarization, the average latency of amperometric spikes was 1,870 ms, whereas the latency of glutamate-mediated excitatory postsynaptic currents was 1.6 ms. A substantial fraction of the depolarization-induced amperometric spikes originated from the somata. In contrast to glutamate-mediated excitatory postsynaptic currents, NA secretion was strongly modulated by the action potential frequency (0.5-50 Hz). Somatodendritic NA release from LC upon enhanced cell activity produced autoinhibition of firing and of NA release. We conclude that, in contrast to classic synaptic transmission, quantal NA release from LC somata is characterized by a number of distinct properties, including long latency and high sensitivity to action potential frequency.</abstract><cop>United States</cop><pub>National Academy of Sciences</pub><pmid>17227848</pmid><doi>10.1073/pnas.0608897104</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Action Potentials Animals Behavioral neuroscience Biological Sciences Brain Calcium - metabolism Capacitance Central nervous system Depolarization Glutamic Acid - metabolism Histograms In Vitro Techniques Locus Coeruleus - cytology Locus Coeruleus - metabolism Locus Coeruleus - physiology Medicin och hälsovetenskap Neurons Neurons - metabolism Neurotransmitter Agents - metabolism Neurotransmitters Patch-Clamp Techniques Pons - metabolism Pons - physiology Rats Rats, Sprague-Dawley Rodents Secretion Sensors Synaptic transmission |
title | Long Latency of Evoked Quantal Transmitter Release from Somata of Locus Coeruleus Neurons in Rat Pontine Slices |
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