Table 2: Experimental and human regarding the role of cannabidiol in different model of epilepsy.

Compound Type of animal model Results References
Phytocannabinoid cannabidivarin (CBDV) 1) Epileptiform local field potentials (LFPs)
2) Maximal electroshock (MES)
3) Audiogenic seizures in mice
4) Pentylenetetrazole (PTZ) and pilocarpine-induced seizures in rats
CBDV is an effective anticonvulsant in a broad range of seizure models [61]
Phytocannabinoid cannabidivarin (CBDV) 1) Audiogenic seizures in mice
2) Pentylenetetrazole (PTZ) and pilocarpine-induced seizures in rats
CBDV induces significant anticonvulsant effects in all three seizure models [62]
Phytocannabinoid cannabidivarin (CBDV) Pentylenetetrazole (PTZ)-induced seizures in rats CBDV induces significant anticonvulsant effects on PTZ seizure [63]
Phytocannabinoid cannabidivarin (CBDV) Epileptiform neuronal spike activity in hippocampal brain slices exposed to a Mg(2+)-free solution CBDV reduced epileptiform burst amplitude and duration [64]
WIN55.212-2 and URB597 Amygdala kindling model of temporal lobe epilepsy WIN55.212-2 significantly delayed the progression of seizure severity, whereas URB597 did not affect seizure development [65]
Human data Twelve patients with refractory mesial temporal lobe epilepsy due to hippocampal sclerosis received a [(18)F]MK-9470 scan to assess the in vivo availability type 1 cannabinoid (CB1) receptor CB1 receptor availability showed opposite changes in different brain regions that are involved by complex partial seizures in refractory mesial temporal lobe epilepsy with hippocampal sclerosis [66]
Human data Comparative expression profiling and quantitative electron microscopic analysis of postmortem samples from subjects with no signs of neurological disorders (controls) and surgical specimens of epileptic hippocampal tissue removed from patients with intractable temporal lobe epilepsy The impaired neuroprotective effects of endocannabinoids in human epileptic hippocampus suggest that downregulation of type 1 cannabinoid receptor and related molecular components of the endocannabinoid system may compound the harmful effects of network hyperexcitability [67]
Human data Measurement of endocannabinoid levels in cerebrospinal fluid (CSF) of drug-naive patients with temporal lobe epilepsy Patients exhibited significantly reducted CSF anandamide levels compared with healthy controls [68]