Assessing the role of serotonergic receptors in cannabidiol's anticonvulsant efficacy (original) (raw)

Epilepsy & Behavior, 2017

Abstract

Cannabidiol (CBD) is a phytocannabinoid that has demonstrated anticonvulsant efficacy in several animal models of seizure. The current experiment validated CBD's anticonvulsant effect using the acute pentylenetetrazol (PTZ) model. Furthermore, it tested whether CBD reduces seizure activity by interacting with either the serotonergic 5HT1A or 5HT2A receptor. 120 male adolescent Wistar-Kyoto rats were randomly assigned to 8 treatment groups in two consecutive experiments. In both experiments, subjects received either CBD (100mg/kg) or vehicle 60min prior to seizure testing. In Experiment 1, subjects received either WAY-100635 (1mg/kg), a 5HT1A antagonist, or saline vehicle injection 80min prior to seizure testing. In Experiment 2, subjects received either MDL-100907 (0.3mg/kg), a specific 5HT2A antagonist, or 40% DMSO vehicle 80min prior to seizure testing. 85mg/kg of PTZ was administered to induce seizure, and behavior was recorded for 30min. Seizure behaviors were subsequently c...

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