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find Keyword "Electric conduction" 1 results
  • Efficacy of electric conduction on rats with penicillin-induced neocortical epilepsy

    ObjectiveTo confirm that conduction of the epileptiform discharge activity out of the cranium can by reduce the seizure and consequence neuron injury, and introduce the novel micro invasive neurosurgical approach to epileptic therapy. MethodsTo build penicillin-induced neocortical epilepsy rat (n=60, 4 groups, 15 per group, including control group, conducting group, pseudo-conduction group and model control group). The specialized self-made conducting electrode was used to building conducting epileptic rat model. The epileptiform discharges were recorded by EEG with deep needle electrode for 2 hours under anesthesia, and seizures were monitored by video for 48 hours in waking. At last, the apoptosis ratio of neocortex was tested with flow cytometer. ResultsWe built 41 (91.1%) penicillin-induced neocortical epilepsy rats successfully. The mean frequency of total epileptiform discharges and frequency of diffused epileptiform discharges in EEG in conducting group were significantly less than the numbers in model control group and pseudo-conduction group(P < 0.01). However, significant difference was not found in times of focal epileptiform discharges among 3 test groups. During video monitoring, significant difference presented in the frequency of clinical seizure between conducting group and model control group or pseudo-conducting group. Furthermore, apoptosis ratios of neuron in conducting group was significantly less than the other two groups (P < 0.001). ConclusionsConducting the epileptiform discharge activity out of the cranium can prevent the seizure and reduce epileptiform discharge and apoptosis ratio of neocortex in neocortical epilepsy rats.

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