Mechanistic Insights into the Modulation of Voltage-Gated Ion Channels by Inhalational Anesthetics

Manuel Covarrubias, Annika F. Barber, Vincenzo Carnevale, Werner Treptow, Roderic G. Eckenhoff

Research output: Contribution to journalReview articlepeer-review

36 Scopus citations


General anesthesia is a relatively safe medical procedure, which for nearly 170 years has allowed life saving surgical interventions in animals and people. However, the molecular mechanism of general anesthesia continues to be a matter of importance and debate. A favored hypothesis proposes that general anesthesia results from direct multisite interactions with multiple and diverse ion channels in the brain. Neurotransmitter-gated ion channels and two-pore K+ channels are key players in the mechanism of anesthesia; however, new studies have also implicated voltage-gated ion channels. Recent biophysical and structural studies of Na+ and K+ channels strongly suggest that halogenated inhalational general anesthetics interact with gates and pore regions of these ion channels to modulate function. Here, we review these studies and provide a perspective to stimulate further advances.

Original languageEnglish (US)
Pages (from-to)2003-2011
Number of pages9
JournalBiophysical Journal
Issue number10
StatePublished - Nov 17 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biophysics


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