Abstract
A simple and rapid method for detecting the behavioral effects of phencyclidine and related dissociative anesthetics is described. Dissociative anesthetics such as phencyclidine (PCP) and dizolcipine, which bind with high affinities at N-methyl-D-aspartate (NMDA) coupled cation channels (“PCP receptors”), produced a dose-related increase in the percentage of mice that fell from a 1.5 cm deep circular arena mounted on a 60 cm platform. A similar behavior was not manifest by other classes of compounds examined including competitive NMDA antagonists, an antagonist at strychnine-insensitive glycine receptors, and σ-receptor ligands with moderate to low affinities for PCP receptors. Pretreatment of mice with glycine reduced in a dose-dependent manner the percentage of falls elicited by a maximally effective dose of dizolcipine. This simple procedure may prove useful for both the rapid detection of dissociative anesthetics and evaluation of putative PCP antagonists.
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Evoniuk, G.E., Hertzman, R.P. & Skolnick, P. A rapid method for evaluating the behavioral effects of phencyclidine-like dissociative anesthetics in mice. Psychopharmacology 105, 125–128 (1991). https://doi.org/10.1007/BF02316874
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DOI: https://doi.org/10.1007/BF02316874