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Brain Res. 2000 Jan 10;852(2):344-8.

Propofol increases agonist efficacy at the GABA(A) receptor.

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1
Department of Pharmacological and Physiological Sciences, University of Chicago, IL 60637, USA.

Abstract

Using the whole-cell patch-clamp technique, we have determined that propofol, but not midazolam, increases the efficacy of piperidine-4-sulphonic acid (P4S), a partial agonist at alpha1beta1gamma2s, GABA(A) receptors expressed in HEK 293 cells. These findings are consistent with the idea that propofol facilitates receptor gating, while midazolam increases receptor occupancy by the agonist.

PMID:
10678761
[Indexed for MEDLINE]
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