{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,2,21]],"date-time":"2024-02-21T06:19:43Z","timestamp":1708496383186},"reference-count":21,"publisher":"American Physiological Society","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Neurophysiology"],"published-print":{"date-parts":[[2008,7]]},"abstract":"<jats:p> Activity of extrasynaptic GABA<jats:sub>A<\/jats:sub> receptors mediating tonic inhibition is thought to play an important role for the excitability of the mammalian cerebral cortex. However, little is known about the cell type\u2013specific expression of tonic inhibition in particular types of cortical interneurons. Here, we used transgenic mice expressing green fluorescent protein (GFP) in somatostatin-positive (SOM) interneurons and investigated tonic inhibition in SOM interneurons versus pyramidal cells in neocortical layers 2\/3. In brain slices, pyramidal cells showed a tonic current of 66 \u00b1 19 pA in response to the \u03b4-subunit selective GABA<jats:sub>A<\/jats:sub> agonist THIP (1 \u03bcM). On the other hand, tonic inhibition was absent in SOM interneurons (8 \u00b1 1 pA) in response to THIP. As opposed to pyramidal cells, SOM interneurons were also insensitive to the \u03b4-subunit preferring neurosteroid allotetrahydrodeoxycorticosterone (THDOC) (100 nM) and to elevated endogenous GABA levels in the slice. Finally, SOM interneurons received only 45% of the phasic charge transfer during GABA<jats:sub>A<\/jats:sub> receptor\u2013mediated synaptic activity compared with pyramidal cells. Altogether, our study indicates that SOM interneurons receive relatively weak inhibitory input and cannot be brought under the influence of tonic inhibition. <\/jats:p>","DOI":"10.1152\/jn.01224.2007","type":"journal-article","created":{"date-parts":[[2008,5,8]],"date-time":"2008-05-08T00:54:03Z","timestamp":1210208043000},"page":"526-532","source":"Crossref","is-referenced-by-count":30,"title":["Cell Type\u2013Specific GABA<sub>A<\/sub> Receptor\u2013Mediated Tonic Inhibition in Mouse Neocortex"],"prefix":"10.1152","volume":"100","author":[{"given":"Irina","family":"Vardya","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kim R.","family":"Drasbek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zita","family":"D\u00f3sa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kimmo","family":"Jensen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"24","reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pharmthera.2006.03.006"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00223.2004"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1038\/35051086"},{"key":"R4","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0604304103"},{"key":"R5","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00651.2006"},{"key":"R6","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhj055"},{"key":"R7","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhj126"},{"key":"R8","doi-asserted-by":"publisher","DOI":"10.1038\/nrn1625"},{"key":"R9","doi-asserted-by":"publisher","DOI":"10.1038\/nn1813"},{"key":"R10","doi-asserted-by":"publisher","DOI":"10.1152\/jn.01079.2005"},{"key":"R11","doi-asserted-by":"publisher","DOI":"10.1038\/nn1909"},{"key":"R12","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00520.2005"},{"key":"R13","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.12-12-04846.1992"},{"key":"R14","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.4945-06.2007"},{"key":"R15","doi-asserted-by":"publisher","DOI":"10.1038\/nn1469"},{"key":"R16","doi-asserted-by":"publisher","DOI":"10.1152\/jn.2002.87.5.2624"},{"key":"R17","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.20-09-03354.2000"},{"key":"R18","doi-asserted-by":"publisher","DOI":"10.1111\/j.1460-9568.2006.04989.x"},{"key":"R19","doi-asserted-by":"publisher","DOI":"10.1038\/nn1043"},{"key":"R20","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.23-33-10650.2003"},{"key":"R21","doi-asserted-by":"publisher","DOI":"10.1002\/cne.21101"}],"container-title":["Journal of Neurophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.physiology.org\/doi\/pdf\/10.1152\/jn.01224.2007","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,9,9]],"date-time":"2019-09-09T06:40:12Z","timestamp":1568011212000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.physiology.org\/doi\/10.1152\/jn.01224.2007"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,7]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2008,7]]}},"alternative-id":["10.1152\/jn.01224.2007"],"URL":"https:\/\/doi.org\/10.1152\/jn.01224.2007","relation":{},"ISSN":["0022-3077","1522-1598"],"issn-type":[{"value":"0022-3077","type":"print"},{"value":"1522-1598","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,7]]}}}