نتایج جستجو برای: perforant path
تعداد نتایج: 139636 فیلتر نتایج به سال:
Myelin degeneration is one of the characteristics of aging and degenerative diseases. This study investigated age-related alterations in expression of myelin basic protein (MBP) in the hippocampal subregions (dentate gyrus, CA2/3 and CA1 areas) of gerbils of various ages; young (1 month), adult (6 months) and aged (24 months), using western blot and immunohistochemistry. Western blot results sh...
In the adult brain, neurotrophin-3 (NT-3) is mainly localized in dentate granule cells, and its expression is decreased by various stimuli, e.g., seizure activity. We have examined the role of endogenous NT-3 for excitatory synaptic transmission at lateral perforant path-dentate granule cell synapses using hippocampal slices from NT-3 knock-out (+/-) and wild-type (+/+) mice. Paired-pulse facil...
The direct perforant path (PP) projection to CA3 is a major source of cortical input to the hippocampal region, yet relatively little is known about the basic properties of physiology and plasticity in this pathway. We tested whether PP long-term potentiation (LTP) in CA3 possesses the Hebbian property of associativity; i.e., whether the firing of fibers of different orders can induce PP LTP. W...
Alzheimer's disease, which is defined pathologically by abundant amyloid plaques and neurofibrillary tangles concurrent with synaptic and neuronal loss, is the most common underlying cause of dementia in the elderly. Among the oldest-old, those aged 90 and older, other ageing-related brain pathologies are prevalent in addition to Alzheimer's disease, including cerebrovascular disease and hippoc...
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