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Title: Thiopental inhibits glycine receptor function in acutely dissociated rat spinal dorsal horn neurons
Author: Yang, CX ; Xu, TL(徐天乐)
Source: NEUROSCIENCE LETTERS
Issued Date: 2006
Volume: 397, Issue:3, Pages:196-200
Keyword: acutely dissociated neuron ; thiopental ; glycine receptors ; spinal cord dorsal horn ; whole-cell patch-clamp recording ; GENERAL-ANESTHETICS ; COMMISSURAL NEURONS ; CROSS-INHIBITION ; GABA(A) ; MODULATION ; MECHANISMS ; PROPOFOL
Subject: Neurosciences & Neurology
Corresponding Author: Xu, TL (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China,tlxu@ion.ac.cn
English Abstract: Whole-cell patch-clamp was used to assess the modulatory effect of thiopental (Thio) on glycine (Gly) receptor in mechanically dissociated rat spinal dorsal horn neurons. It was found that Thio inhibited the amplitude, accelerated the desensitization and prolonged the deactivation of Gly-induced currents (I-Gly) in a concentration-dependent manner. In addition, a rebound current occurred after washout of the co-application of Gly and Thio in most neurons tested. Moreover, the inhibitory effect of Thio was not the result of cross-inhibition between Gly and GABA(A) receptors. Furthermore, taurine-induced currents, a low-affinity agonist for Gly receptors, were also markedly inhibited by Thio in a similar way to I-Gly. These results indicate that Thio suppresses Gly receptor function and suggest that Thio anesthetic actions might not be mediated by Gly receptors. We speculate that the weak muscle relaxation and the limited analgesic effects observed during Thio anesthesia may attribute to its inhibitory effects on Gly receptors. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
Indexed Type: SCI
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1831
Appears in Collections:神经所(总)_期刊论文

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Yang, CX; Xu, TL.Thiopental inhibits glycine receptor function in acutely dissociated rat spinal dorsal horn neurons,NEUROSCIENCE LETTERS,2006,397(3):196-200
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