Volume 11, Issue 6 (November & December 2020)                   BCN 2020, 11(6): 831-840 | Back to browse issues page


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Zalkhani R, Moazedi A A, Ghotbeddin Z, Pourmahdi Borujeni M. Interaction of Sodium Valproate With Low-Frequency Electrical Stimulation During Kindlingn. BCN. 2020; 11 (6) :831-840
URL: http://bcn.iums.ac.ir/article-1-1535-en.html
1- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
2- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Abstract:  
Introduction: The interaction between antiepileptic drugs and brain electrical stimulation is a potential therapy to control seizures in patients with pharmacoresistance to drugs. So, the present study aimed to design to determine the effect of a subeffective dose of sodium valproate combined with low-frequency electrical stimulation during kindling.
Methods: One tripolar electrode was implanted stereotactically in the CA1 hippocampus of male Wistar rats. One week after surgery, the rats were kindled by electrical stimulation of hippocampus in a rapid manner (12 stimulations/day) for 6 days with sodium valproate alone or combined with low-frequency electrical stimulation (four packages contained 200 monophasic square wave pulses of 0.1-ms duration at 1 Hz, immediately after kindling stimulations). The duration of afterdischarge, maximum latency to stages 4 and 5, and the maximum duration of these stages were recorded by electromadule during kindling.
Results: Application of sodium valproate with low-frequency electrical stimulation caused a reduction in cumulative afterdischarge duration. The maximum latency to the onset of stage 5 seizure increased after sodium valproate application alone, without having a significant effect on the fourth stage. Our findings showed reductions in the seizures duration and increasing in the latency times of both stages after the application of sodium valproate with low-frequency electrical stimulation.
Conclusion: It seems that usage of sodium valproate with low-frequency electrical stimulation during kindling was more effective to suppress the epileptic activity than its administration alone and may have a critical role on the antiepileptic effects of sodium valproate.
Full-Text [PDF 915 kb]      
Type of Study: Original | Subject: Behavioral Neuroscience
Received: 2019/06/18 | Accepted: 2020/02/17 | Published: 2020/11/1

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