Background: 4-Hydroxybenzyl alcohol (4-HBA), one of the major active phenolic constituents of Gastrodia elata Blume, has been shown to be a neuroprotective agent. Previous studies have demonstrated the anticonvulsive effect of Gastrodia elata, while no studies have investigated the antiepileptogenic effect of 4-HBA. Methods: We examined the effect of 4-HBA (25 mg/kg, 50 mg/kg or 100 mg/kg i.p.)...

Objective: The most common type of epilepsy affecting about 50 million people worldwide is temporal lobe (TLE). Chemical and electrical kindling methods in animals can be used to form TLE model. In the present study, it was aimed investigate neurogenesis hippocampus adult kindled Wistar rats genetic absence from Strasbourg (GAERS) by immunofluorescence methods.
 
 Methods: Adult GAERS...

asCP, the unique green fluorescent protein-like nonfluorescent chromoprotein from the sea anemone Anemonia sulcata, becomes fluorescent ("kindles") upon green light irradiation, with maximum emission at 595 nm. The kindled protein then relaxes to a nonfluorescent state or can be "quenched" instantly by blue light irradiation. In this work, we used asCP mutants to investigate the mechanism under...

This review summarizes the structural and electrophysiological changes in the epileptic hippocampus in various animal models of epilepsy. Tornado hypothesis of epileptic hippocampus, states that there are many progressive detrimental changes in the hippocampus of the epileptic rats. PTZ, PTZ kindling, pilocarpine, electrical kindling, kainic acid, hyperthermia and in vitro models are taken as p...

We tested the hypothesis that presynaptic GABA(B) receptors on glutamatergic terminals (GABA(B) heterosynaptic receptors) decreased in efficacy after partial hippocampal kindling. Rats were implanted with chronically indwelling electrodes and 15 hippocampal afterdischarges were evoked by high-frequency electrical stimulation of hippocampal CA1. Control rats were implanted with electrodes but no...

Early life stress results in an enduring vulnerability to kindling-induced epileptogenesis in rats, but the underlying mechanisms are not well understood. Recent studies indicate the involvement of thalamocortical neuronal circuits in the progression of kindling epileptogenesis. Therefore, we sought to determine in vivo the effects of early life stress and amygdala kindling on the firing patter...

Introduction: Considering the antiepileptogenic effects of repeated transcranial magnetic stimulation (rTMS), the effect of rTMS applied during amygdala kindling on spontaneous activity of hippocampal CA1 pyramidal neurons was investigated. Materials and Methods: A tripolar electrode was inserted in basolateral amygdala of Male Wistar rats. After a recovery period, animals received daily kindli...

Female Wistar rats were implanted with electrodes in the right amygdala, and initial--pre-kindling--afterdischarge thresholds (ADT's) were determined 1, 2, 4, and 8 weeks after electrode implantation. Pre-kindling ADT's were highest 1 week after implantation, lower at 2 weeks, and lowest at 4 weeks. This drop in non-stimulated thresholds had largely disappeared by 8 weeks post-implantation. Hal...

Introduction: In this study, the combined effects of low frequency stimulation (LFS) and carbamazepine (CBZ) were investigated on the motor behavior and balance indices of adult male rats during dorsal hippocampal epilepsy by electrical kindling method. Method: In this experimental study, 56 adult male Wistar rats were randomly divided into 8 groups. Kindling stimulations were performed rapidl...

Rats received 53 stimulations to either the left basolateral amygdala (BA) or left anterior neocortex (AN) in one environment (CS+) and 53 sham stimulations (the stimulation lead was attached but no current was delivered) in another environment (CS-), quasirandomly over 54 days. Confirming a previous report [Barnes, S.J., Pinel, J.P., Francis, L.H. & Wig, G.S. (2001) Behav. Neurosci., 115, 1065...