scholarly journals Early Activation of Ventral Hippocampus and Subiculum during Spontaneous Seizures in a Rat Model of Temporal Lobe Epilepsy

2013 ◽  
Vol 33 (27) ◽  
pp. 11100-11115 ◽  
Author(s):  
I. Toyoda ◽  
M. R. Bower ◽  
F. Leyva ◽  
P. S. Buckmaster
Keyword(s):  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Rat Model ◽  
Ventral Hippocampus ◽  
Early Activation ◽  
Spontaneous Seizures

scholarly journals Behavioral characteristics as potential biomarkers of the development and phenotype of epilepsy in a rat model of temporal lobe epilepsy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Karolina Nizinska ◽  
Kinga Szydlowska ◽  
Avgoustinos Vouros ◽  
Anna Kiryk ◽  
Aleksandra Stepniak ◽  
...  
Keyword(s):  
Temporal Lobe Epilepsy ◽  
Morris Water Maze ◽  
Temporal Lobe ◽  
Rat Model ◽  
Water Maze ◽  
Elevated Plus Maze ◽  
Spontaneous Seizures ◽  
Long Latency ◽  
Plus Maze ◽  
Behavioral Impairments

AbstractThe present study performed a detailed analysis of behavior in a rat model of epilepsy using both established and novel methodologies to identify behavioral impairments that may differentiate between animals with a short versus long latency to spontaneous seizures and animals with a low versus high number of seizures. Temporal lobe epilepsy was induced by electrical stimulation of the amygdala. Rats were stimulated for 25 min with 100-ms trains of 1-ms biphasic square-wave pluses that were delivered every 0.5 s. Electroencephalographic recordings were performed to classify rats into groups with a short latency (< 20 days, n = 7) and long latency (> 20 days, n = 8) to the first spontaneous seizure and into groups with a low number of seizures (62 ± 64.5, n = 8) and high number of seizures (456 ± 185, n = 7). To examine behavioral impairments, we applied the following behavioral tests during early and late stages of epilepsy: behavioral hyperexcitability, open field, novel object exploration, elevated plus maze, and Morris water maze. No differences in stress levels (e.g., touch response in the behavioral hyperexcitability test), activity (e.g., number of entries into the open arms of the elevated plus maze), or learning (e.g., latency to find the platform in the Morris water maze test during training days) were observed between animals with a short versus long latency to develop spontaneous seizures or between animals with a low versus high number of seizures. However, we found a higher motor activity measured by higher number of entries into the closed arms of the elevated plus maze at week 26 post-stimulation in animals with a high number of seizures compared with animals with a low number of seizures. The analysis of the Morris water maze data categorized the strategies that the animals used to locate the platform showing that the intensity of epilepsy and duration of epileptogenesis influenced swimming strategies. These findings indicate that behavioral impairments were relatively mild in the present model, but some learning strategies may be useful biomarkers in preclinical studies.

scholarly journals Neuropeptide Y gene therapy decreases chronic spontaneous seizures in a rat model of temporal lobe epilepsy

Brain ◽  
2008 ◽  
Vol 131 (6) ◽  
pp. 1506-1515 ◽  
Author(s):  
Francesco Noè ◽  
Allan-Hermann Pool ◽  
Jari Nissinen ◽  
Marco Gobbi ◽  
Ross Bland ◽  
...  
Keyword(s):  
Gene Therapy ◽  
Temporal Lobe Epilepsy ◽  
Neuropeptide Y ◽  
Temporal Lobe ◽  
Rat Model ◽  
Spontaneous Seizures

Neuronal Cell Death in a Rat Model for Mesial Temporal Lobe Epilepsy Is Induced by the Initial Status Epilepticus and Not by Later Repeated Spontaneous Seizures

Epilepsia ◽  
2003 ◽  
Vol 44 (5) ◽  
pp. 647-658 ◽  
Author(s):  
Jan A. Gorter ◽  
Pedro M. Gonçalves Pereira ◽  
Erwin A. Van Vliet ◽  
Eleonora Aronica ◽  
Fernando H. Lopes Da Silva ◽  
...  
Keyword(s):  
Cell Death ◽  
Status Epilepticus ◽  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Rat Model ◽  
Neuronal Cell Death ◽  
Neuronal Cell ◽  
Mesial Temporal Lobe Epilepsy ◽  
Spontaneous Seizures ◽  
Mesial Temporal Lobe

Effects of SC58236, a selective COX-2 inhibitor, on epileptogenesis and spontaneous seizures in a rat model for temporal lobe epilepsy

2009 ◽  
Vol 84 (1) ◽  
pp. 56-66 ◽  
Author(s):  
L. Holtman ◽  
E.A. van Vliet ◽  
R. van Schaik ◽  
C.M. Queiroz ◽  
E. Aronica ◽  
...  
Keyword(s):  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Rat Model ◽  
Spontaneous Seizures ◽  
Cox 2
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