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[Correlation between the anticonvulsant and tranquilizing effects of carbamazepine and methindione in experimental
Abstract:
In 16 rabbits with chronic implanted electrodes the authors convened an electrostimulation of the hypocampus, the amygdale body and new cortex which brought to emotional-affective and EEG convulsive reactions. These reactions were inhibited by karbamazepine (150 mg/kg) and methindion (100 and 200 mg/kg) introduced into the gastrum. Karbamazepine possessed most inhibiting effect. The tranquillizing effect of methindion exceedes its anticonvulsive action, due to which it can be used both as an anticonvulsant and tranquilizing preparation. For this reason its combined effect should be most effective in temporal epilepsy.
Insights
Karbamazepine and methindione effectively inhibited electrostimulation-induced seizures in rabbits. Methindione demonstrated both anticonvulsant and tranquilizing properties, suggesting its potential for temporal epilepsy treatment.
Area of Science:
- Neuroscience
- Pharmacology
Background:
- Electrostimulation of the hippocampus, amygdala, and neocortex can induce emotional-affective and EEG convulsive reactions.
- Understanding the neurobiological basis of seizures is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the anticonvulsant and tranquilizing effects of karbamazepine and methindione on induced seizures in rabbits.
- To evaluate the potential of these drugs in managing epilepsy.
Main Methods:
- Chronic electrode implantation in 16 rabbits.
- Electrostimulation of the hippocampus, amygdala, and neocortex.
- Administration of karbamazepine (150 mg/kg) and methindione (100 and 200 mg/kg) via gastrum.
- Observation and measurement of emotional-affective and EEG convulsive reactions.
Main Results:
- Both karbamazepine and methindione significantly inhibited the induced seizures.
- Karbamazepine exhibited a potent inhibitory effect.
- Methindione displayed both anticonvulsant and tranquilizing effects, with the tranquilizing action being more pronounced.
Conclusions:
- Karbamazepine and methindione are effective in suppressing experimentally induced seizures.
- Methindione's dual action suggests its utility as a combined anticonvulsant and tranquilizer.
- The findings support the potential application of methindione in treating temporal epilepsy.