McKinstry-Wu Andrew, Carspecken Charles W, Proekt Alex, Kelz Max B
University of Pennsylvania, Philadelphia, PA, United States.
University of Pennsylvania, Philadelphia, PA, United States.
Methods Enzymol. 2018;602:289-298. doi: 10.1016/bs.mie.2018.01.011. Epub 2018 Mar 3.
The existence of a barrier between anesthetic behavioral state transitions has been observed across phyla, but demonstrating that such a barrier exists and is not a pharmacokinetic artifact has not yet been possible in humans. Such an investigation requires temporally precise information regarding the brain concentration of anesthetic in order to demonstrate the specific pharmacokinetic-pharmacodynamic mismatch that is hysteresis. We propose a method to noninvasively determine brain tissue anesthetic concentration using computerized tomography and the radiopaque gaseous anesthetic xenon. Such a technique can be used to investigate pharmacokinetic-pharmacodynamic mismatches in humans.
跨门观察到麻醉行为状态转换之间存在障碍,但在人类中尚未能够证明这种障碍的存在且不是药代动力学假象。这样的研究需要关于麻醉剂脑浓度的时间精确信息,以证明作为滞后现象的特定药代动力学 - 药效学不匹配。我们提出一种使用计算机断层扫描和不透射线的气态麻醉剂氙来无创确定脑组织麻醉剂浓度的方法。这种技术可用于研究人类中的药代动力学 - 药效学不匹配。