Abstract:
:Distribution and time course of the occurrence of "dark" neurons were compared with the EEG activity and behavior of rats during 4-aminopyridine (4-AP) induced epileptic seizures. A crystal of the K(+) channel blocker 4-AP (0.5 mg/kg) was placed onto the exposed parieto-occipital cortex of Halothane-anesthetized rats for 40 min. Thereafter, the anesthesia was discontinued and the behavioral signs of the epileptic seizure activity were observed. The presence of "dark" neurons was demonstrated by the sensitive silver method of Gallyas in rats sacrificed at 0, 3 and 6 h after the end of the 4-AP crystal application. The EEG activity was recorded in the rats with longer survival times. The EEG analysis revealed the generalization of the epileptic seizures. We found that the formation of "dark" neurons in the hippocampus and the pontine reticular formation paralleled the generalization of the seizures.
journal_name
Brain Resjournal_title
Brain researchauthors
Baracskay P,Szepesi Z,Orbán G,Juhász G,Czurkó Adoi
10.1016/j.brainres.2008.06.044subject
Has Abstractpub_date
2008-09-04 00:00:00pages
217-28eissn
0006-8993issn
1872-6240pii
S0006-8993(08)01480-7journal_volume
1228pub_type
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