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• W2132668024 abstract "Deep brain stimulation (DBS) is an established therapeutic modality for the treatment of movement disorders and an emerging therapeutic approach for the treatment of disorders of mood and thought. For example, recently we have shown that DBS of the fornix may ameliorate cognitive decline associated with dementia. However, like other applications of DBS, the mechanisms mediating these clinical effects are unknown. As DBS modulates neurophysiological activity in targeted brain regions, DBS might influence cognitive function via activity-dependent regulation of hippocampal neurogenesis. Using stimulation parameters analogous to clinical high-frequency DBS, here we addressed this question in mice. We found that acute stimulation of the entorhinal cortex (EC) transiently promoted proliferation in the dentate gyrus (DG). Cells generated as a consequence of stimulation differentiated into neurons, survived for at least several weeks, and acquired normal dentate granule cell (DGC) morphology. Importantly, stimulation-induced promotion of neurogenesis was limited to the DG and not associated with changes in apoptotic cell death. Using immunohistochemical approaches, we found that, once sufficiently mature, these stimulation-induced neurons integrated into hippocampal circuits supporting water-maze memory. Finally, formation of water-maze memory was facilitated 6 weeks (but not 1 week) after bilateral stimulation of the EC. The delay-dependent nature of these effects matches the maturation-dependent integration of adult-generated DGCs into dentate circuits supporting water-maze memory. Furthermore, because the beneficial effects of EC stimulation were prevented by blocking neurogenesis, this suggests a causal relationship between stimulation-induced promotion of adult neurogenesis and enhanced spatial memory." @default.
• W2132668024 created "2016-06-24" @default.
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• W2132668024 date "2011-09-21" @default.
• W2132668024 modified "2023-10-15" @default.
• W2132668024 title "Stimulation of Entorhinal Cortex Promotes Adult Neurogenesis and Facilitates Spatial Memory" @default.
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• W2132668024 doi "https://doi.org/10.1523/jneurosci.3100-11.2011" @default.
• W2132668024 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6623309" @default.
• W2132668024 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21940440" @default.
• W2132668024 hasPublicationYear "2011" @default.
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