Acteoside, isolated from C. oppositifolia, was studied for its anti-stroke activity in Wistar rats. Rats were pretreated with acteoside at different doses before being subjected to ischemia-reperfusion brain injury. Neurological, motor-cognitive functions were evaluated along with morphological, biochemical, histopathological, and gene expression studies. Results showed that acteoside had a protective effect against I/R induced brain injury, making it a potential therapeutic agent for stroke treatment.
Acteoside was evaluated for its anticonvulsant properties and mechanism of action in mice. It was found to have significant anticonvulsant activity in the pentylenetetrazole (PTZ) model, but not in the maximal electroshock (MES) or N-methyl-D-aspartic acid (NMDA) models. Studies on the PTZ model showed that acteoside restored altered antioxidant levels, GABA mRNA levels, and glutamate levels in the cortex and hippocampus regions of PTZ-treated mice. The anticonvulsant activity of acteoside was confirmed to be due to its GABAergic mechanism and was found to have no central side effects. The study concludes that acteoside and related compounds may be useful in the treatment of epilepsy.
Colebrookea oppositifolia Smith plant is used by various folk medicine groups in sub-Himalayan regions of India to treat epilepsy.