Research Topics
| E I EgerSummaryAffiliation: University of California Country: USA Publications
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Detail Information
Publications
Hypothesis: volatile anesthetics produce immobility by acting on two sites approximately five carbon atoms apartE I Eger
Department of Anesthesia and Perioperative Medicine, University of California, San Francisco 94143 0464, USA
Anesth Analg 88:1395-400. 1999..IMPLICATIONS: Volatile anesthetics may produce immobility by a concurrent action on two sites five carbon atom lengths apart...
Nonimmobilizers and transitional compounds may produce convulsions by two mechanismsE I Eger
Department of Anesthesia, University of California, San Francisco 94143 0464, USA
Anesth Analg 88:884-92. 1999..Implications: Nonimmobilizers and transitional compounds may produce convulsions by two mechanisms. One correlates with lipophilicity (nonpolarity), and the other correlates with an action on GABA(A) receptors...
Mouse strain modestly influences minimum alveolar anesthetic concentration and convulsivity of inhaled compoundsJ M Sonner
Department of Anesthesia, University of California, San Francisco 94143 0464, USA
Anesth Analg 89:1030-4. 1999....
The convulsant and anesthetic properties of cis-trans isomers of 1,2-dichlorohexafluorocyclobutane and 1,2-dichloroethyleneE I Eger
Department of Anesthesia and Perioperative Care, University of California, San Francisco, California 94143 0464, USA
Anesth Analg 93:922-7. 2001..Such isomeric effects may be as useful as those found with optical isomers in defining receptor-anesthetic interactions...
Recovery and kinetic characteristics of desflurane and sevoflurane in volunteers after 8-h exposure, including kinetics of degradation productsE I Eger
Department of Anesthesia, University of California, San Francisco 94143 0464, USA
Anesthesiology 87:517-26. 1997..The authors determined the kinetic characteristics of desflurane and sevoflurane and those of compound A [CH2F-O-C(=CF2)(CF3)], a nephrotoxic degradation product of sevoflurane...
Desflurane and the nonimmobilizer 1,2-dichlorohexafluorocyclobutane suppress learning by a mechanism independent of the level of unconditioned stimulationJ M Sonner
Department of Anesthesia, University of California San Francisco 94143 0464, USA
Anesth Analg 87:200-5. 1998..Using an animal model, we refuted the hypothesis that lack of recall results from the analgesia (i.e., the reduced response to painful stimuli produced by inhaled drugs) rather than from a direct effect on learning...
Luciferase as a model for the site of inhaled anesthetic actionY Zhang
Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143-0464, USA
Anesth Analg 93:1246-52. 2001..Luciferase may not provide a good surrogate for the site at which anesthetics act...
Ethanol concentrations approaching minimum alveolar anesthetic concentration are required to suppress learning in a fear-potentiated startle paradigm in ratsJ M Sonner
Department of Anesthesia, University of California San Francisco, 94143 0464, USA
Anesth Analg 87:1398-403. 1998..IMPLICATIONS: Abolition of learning and memory is an important property of inhaled anesthetics. This effect primarily results from an action at a lipid (nonpolar) site, rather than a polar site or a water-lipid interface...
Desflurane and nitrous oxide, but not nonimmobilizers, affect nociceptive responsesJ Sonner
Department of Anesthesia, University of California San Francisco, 94143 0464, USA
Anesth Analg 86:629-34. 1998..Nonimmobilizers had no effect on these responses; at a low partial pressure, desflurane was hyperalgesic; nitrous oxide and, at higher partial pressures, desflurane were antinociceptive...
Repetitive rapid increases in desflurane concentration blunt transient cardiovascular stimulation in humansR B Weiskopf
Department of Anesthesia, University of California, San Francisco 94143 0648
Anesthesiology 81:843-9. 1994..We hypothesized that the initial increase in concentration would produce greater changes than subsequent increases...
Neither GABA(A) nor strychnine-sensitive glycine receptors are the sole mediators of MAC for isofluraneY Zhang
Department of Anesthesia and Perioperative Care, University of California, San Francisco, California 94143-0464, USA
Anesth Analg 92:123-7. 2001..They are not, however, the only receptors that contribute to isoflurane-induced immobility (i.e., that determine the MAC of isoflurane)...
Cardiovascular effects of I653 in swineR B Weiskopf
Department of Anesthesia, University of California, San Francisco
Anesthesiology 69:303-9. 1988..2 MAC, 120 +/- 4 at 1.6 MAC). Systemic vascular resistance increased slightly at 1.6 MAC compared to the values at 0.8 and 1.2 MAC, but was always less than in the conscious condition.(ABSTRACT TRUNCATED AT 250 WORDS)..
Naturally occurring variability in anesthetic potency among inbred mouse strainsJ M Sonner
Department of Anesthesia and Perioperative Care, University of California, San Francisco 94143 0464, USA
Anesth Analg 91:720-6. 2000..IMPLICATIONS: Laboratory mouse strains differ significantly in susceptibility to anesthetics. These phenotypic differences may be exploited to help determine the genetic basis of anesthetic-induced immobility...
Halothane, but not the nonimmobilizers perfluoropentane and 1,2-dichlorohexafluorocyclobutane, depresses synaptic transmission in hippocampal CA1 neurons in ratsD M Taylor
Department of Anesthesia and Perioperative Care, University of California, San Francisco 94143 0648, USA
Anesth Analg 89:1040-5. 1999..IMPLICATIONS: Halothane, but not the nonimmobilizers 1,2-dichlorohexafluorocyclobutane and perfluoropentane, inhibits hippocampal synaptic transmission at Schaffer collateral-CA1 synapses...
The effect of rigidity, shape, unsaturation, and length on the anesthetic potency of hydrocarbonsE I Eger
Department of Anesthesia and Perioperative Care, University of California, San Francisco, California 94143 0464, USA
Anesth Analg 92:1477-82. 2001..0055 atm) and that 3-hexyne was more potent (MAC 0.0146 +/- 0.0014 atm) than n-hexane (MAC 0.0467 +/- 0.0055 atm). We conclude that the site of anesthetic action can accommodate straight rigid structures of up to six carbons in length...
Changing from isoflurane to desflurane toward the end of anesthesia does not accelerate recovery in humansM A Neumann
Department of Anesthesia, University of California, San Francisco, 94143, USA
Anesthesiology 88:914-21. 1998..The authors tried to determine whether substituting desflurane for isoflurane in the last 30 min of a 120-min anesthetic would accelerate recovery...
Age, minimum alveolar anesthetic concentration, and minimum alveolar anesthetic concentration-awakeE I Eger
Department of Anesthesia and Perioperative Care, University of California, San Francisco, California 94143 0464, USA
Anesth Analg 93:947-53. 2001..Thus, these defining effects may be monitored and the results displayed if the concentrations are known and corrected for the effects of age and temperature...
