Conventional kindling experiments appear ideal for generating inadvertent conditioned effects: A variety of stimuli (e.g., removal from the home cage, attachment to the stimulation lead, and placement in the stimulation environment) are repeatedly presented to the animal prior to each stimulation and convulsion. We recently demonstrated that the stimulation environment can have a major impact o...

In previous studies, we reported that a single afterdischarge (AD) or repeated ADs (kindling) in the hippocampus resulted in schizophrenia-like behaviors such as hyperactivity and loss of sensorimotor gating. Given that medial prefrontal cortex (PFC) dysfunction is also found in models of schizophrenia, we hypothesized that a single AD in the PFC induces postictal hyperactivity, and PFC kindlin...

One group of male Wistar rats was kindled by electrical stimulation (ES) of the amygdala, one group was sham operated, while other rats were stimulated in the paleocortex of the cerebellum. The kindled generalized clonictonic seizures were followed by a net increase of the tumor necrosis factor-alpha (TNF-alpha) content both in the cerebral cortex (from 34.7 +/- 6.0 to 76.7 +/- 6.9 pg/mg of wet...

Syntaxin, a protein required for the docking of synaptic vesicles, may be involved in the manifestation of synaptic plasticity. The possible involvement of syntaxin in epileptogenesis was investigated by assessing the expression levels of syntaxin1B/GR33 mRNA by in situ hybridization at different stages of hippocampal kindling epileptogenesis and after the induction of generalized seizures. Den...

OBJECTIVE(S) A growing interest has recently been attracted towards the identification of plant-based medications including those with protective effects against cognitive impairment. Sesamol has shown promising antioxidant and neuroprotective effects, therefore, we aimed to evaluate its therapeutic potential in epilepsy which is commonly associated with oxidative stress and cognitive impairmen...

Numerous studies have been performed to examine gene expression patterns in the rodent hippocampus in the kindling model of epilepsy. However, recent reviews of this literature have revealed limited agreement among studies. Because this conclusion was based on retrospective comparison of reported "hit lists" from individual studies, we hypothesized that re-analysis of the original expression da...

Introduction Research on life stress in bipolar disorder largely fails to account for the possibility of a dynamic relationship between psychosocial and episode initiation. The kindling hypothesis states that over course recurrent affective disorders, there is weakening temporal major initiation could reflect either progressive sensitization or autonomy stress. Objectives To explore concept Kin...