ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2025
Carvone derived cannabidiol enantiomers as novel anticonvulsants.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Developmental epilepsy syndromes are characterized by recurrent seizures and developmental delays. Current anticonvulsants target γ-aminobutyric acid type A receptor signaling to decrease neuronal excitability, however, there are adverse effects for the developing brain, and many patients are refractory. The major non-psychotropic phytocannabinoid cannabidiol (CBD) has emerged as an anti-seizure medication effective in select developmental epilepsy syndromes, but its overall applicability in treating seizure disorders is limited. In the present study, we characterize a small library of non-Cannabis carvone derived CBD (+) enantiomers, with the larger goal of identifying novel therapeutics for developmental epilepsy syndromes. EEG based structure activity relationship assessment supports that elongated alkyl chains increase the potency of the congeners, with (+)-CBD-oct displaying effects on both δ and θ frequency bands. Pre-treatment with (+)-CBD-oct promotes seizure resilience in both wildtype mice and the Gabra2-1 model of developmental epilepsy by influencing seizure characteristics, and reduces mortality. 5 days of (+)-CBD-oct oral gavage in wildtype and Gabra2-1 mice during postnatal development normalizes the aberrant dendritic spine phenotype of Gabra2-1 mice. These findings advance the development of novel anticonvulsants by validating an influence of alkyl chain length of synthetic CBD congeners.
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