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Mesio-temporal lobe epilepsy (MTLE) is often accompanied by granule cell dispersion (GCD), a widening of the granule cell layer. The molecular determinants of GCD are poorly understood. Here, we used an animal model to study whether GCD results from an increased dentate neurogenesis associated with an abnormal migration of the newly generated granule cells.(More)
Granule cell dispersion (GCD) in the dentate gyrus is a frequent feature of Ammon's horn sclerosis (AHS) which is often associated with temporal lobe epilepsy (TLE). It has been hypothesized that GCD may be caused by an abnormal migration of newly born granule cells. To test this hypothesis, we used markers of proliferation and neurogenesis and(More)
BACKGROUND AND PURPOSE Excitotoxic activation of glutamate receptors is currently thought to play a pivotal role in delayed neuronal death (DND) of highly vulnerable CA1 neurons in the gerbil hippocampus after transient global ischemia. Postischemic degeneration of these neurons can be prevented by "preconditioning" with a short sublethal ischemic stimulus.(More)
Excitotoxic activation of glutamate receptors is thought to play a key role in delayed neuronal death (DND) of highly vulnerable hippocampal CA1 neurons after transient global ischemia. DND can be prevented by a short sublethal preconditioning (PC) stimulus. Recently, we demonstrated that ischemic PC, but not a single period of 5-min ischemia elicits a(More)
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