A new study published in the Journal of Ethnopharmacology finds that cannabidiol (CBD) may offer protective and anticonvulsant effects in cases of post-traumatic epilepsy (PTE).
Researchers from Hunan University of Medicine and Ningxia Medical University in China conducted the study using a rat model of PTE triggered by ferric chloride (FeCl₃), including genetically modified rats with overexpressed TRPV1 receptors in the brain. CBD treatment led to a marked decrease in seizure severity and brain tissue damage. EEG monitoring showed that CBD reduced seizure-related electrical activity, including total power and spike-wave discharges.
At the molecular level, the study found that CBD inhibits the TRPV1/HSF1/HSP70 signaling pathway. Specifically, it blocks the phosphorylation of heat shock factor 1 (HSF1) by acting on TRPV1 receptors, which in turn suppresses the stress-induced expression of heat shock protein 70 (HSP70)—a pathway believed to contribute to seizure susceptibility and neuronal stress.
The findings suggest that CBD may hold potential as a preventative treatment for PTE, a condition currently lacking effective prophylactic therapies.
The study concludes by stating “CBD exerts an anticonvulsant and neuroprotective effect on PTE rats by regulating the TRPV1/HSF1/HSP70 pathway and may be a potential drug for the prophylactic treatment of PTE.”
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