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- Dirk Rüsch, Hans A Braun, Hinnerk Wulf, Anika Schuster, and Douglas E Raines.
- Department of Anaesthesia and Critical Care, University Hospital Giessen-Marburg GmbH, Marburg Campus, Baldingerstrasse, 35033 Marburg, Germany. ruesch@staff.uni-marburg.de
- Eur. J. Pharmacol. 2007 Nov 14;573(1-3):60-4.
AbstractThe actions of intravenous anaesthetics on 5-HT(3AB) receptors have not been studied. Using oocyte electrophysiology, the effects of etomidate, propofol, and pentobarbital on human 5-HT(3A) and 5-HT(3AB) receptors were studied and compared. Inhibition of peak currents by all three compounds in both receptor subtypes was anaesthetic concentration-dependant and non-competitive. Because the half-maximal inhibitory concentrations for etomidate, propofol and pentobarbital in 5-HT(3A) and 5-HT(3AB) receptors were all above their respective anaesthetic concentrations, the results of our study suggest that neither 5-HT(3) receptor subtype contributes to the anaesthetic actions of etomidate, propofol or pentobarbital.
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