Agents belonging to diverse chemical classes are used clinically as general anesthetics. The molecular targets mediating their actions are however still only poorly defined. Both chemical diversity and substantial differences in the clinical actions of general anesthetics suggest that general anesthetic agents may have distinct pharmacological targets. It was demonstrated previously that the immobilizing action of etomidate and propofol is completely, and the immobilizing action of isoflurane partly mediated, by beta3-containing GABAA receptors. This was determined by using the beta3(N265M) mice, which carry a point mutation known to decrease the actions of general anesthetics at recombinant GABAA receptors. In this communication, we analyzed the contribution of beta3-containing GABAA receptors to the pharmacological actions of isoflurane, etomidate and propofol by means of beta3(N265M) mice.
Pubmed ID: 17319964 RIS Download
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Mus musculus with name C57BL/6J from IMSR.
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