dorsal/arxiv
View SchemaThe thermodynamics of general anesthesia
| Authors | Thomas Heimburg, Andrew D. Jackson |
|---|---|
| Categories | |
| ArXiv ID | physics/0610147 |
| URL | https://arxiv.org/abs/physics/0610147 |
| DOI | 10.1529/biophysj.106.099754 |
| Journal | Biophys. J. 92 (2007) 3159-3165 |
Abstract
It is known that the action of general anesthetics is proportional to their partition coefficient in lipid membranes (Meyer-Overton rule). This solubility is, however, directly related to the depression of the temperature of the melting transition found close to body temperature in biomembranes. We propose a thermodynamic extension of the Meyer-Overton rule which is based on free energy changes in the system and thus automatically incorporates the effects of melting point depression. This model provides a quantitative explanation of the pressure reversal of anesthesia. Further, it explains why inflammation and the addition of divalent cations reduce the effectiveness of anesthesia.
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"abstract": "It is known that the action of general anesthetics is proportional to their\npartition coefficient in lipid membranes (Meyer-Overton rule). This solubility\nis, however, directly related to the depression of the temperature of the\nmelting transition found close to body temperature in biomembranes. We propose\na thermodynamic extension of the Meyer-Overton rule which is based on free\nenergy changes in the system and thus automatically incorporates the effects of\nmelting point depression. This model provides a quantitative explanation of the\npressure reversal of anesthesia. Further, it explains why inflammation and the\naddition of divalent cations reduce the effectiveness of anesthesia.",
"arxiv_id": "physics/0610147",
"authors": [
"Thomas Heimburg",
"Andrew D. Jackson"
],
"categories": [
"physics.bio-ph",
"physics.med-ph"
],
"doi": "10.1529/biophysj.106.099754",
"journal_ref": "Biophys. J. 92 (2007) 3159-3165",
"title": "The thermodynamics of general anesthesia",
"url": "https://arxiv.org/abs/physics/0610147"
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