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- W3039406103 abstract "Parvalbumin-expressing interneurons (PVs) in the dentate gyrus provide activity-dependent regulation of adult neurogenesis as well as maintain inhibitory control of mature neurons. In mature neurons, PVs evoke GABAA postsynaptic currents (GPSCs) with fast rise and decay phases that allow precise control of spike timing, yet synaptic currents with fast kinetics do not appear in adult-born neurons until several weeks after cell birth. Here we used mouse hippocampal slices to address how PVs signal to newborn neurons prior to the appearance of fast GPSCs. Whereas PV-evoked currents in mature neurons exhibit hallmark fast rise and decay phases, newborn neurons display slow GPSCs with characteristics of spillover signaling. We also unmasked slow spillover currents in mature neurons in the absence of fast GPSCs. Our results suggest that PVs mediate slow spillover signaling in addition to conventional fast synaptic signaling, and that spillover transmission mediates activity-dependent regulation of early events in adult neurogenesis." @default.
- W3039406103 created "2020-07-10" @default.
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- W3039406103 date "2020-06-30" @default.
- W3039406103 modified "2023-09-27" @default.
- W3039406103 title "Parvalbumin interneurons provide spillover to newborn and mature dentate granule cells" @default.
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- W3039406103 doi "https://doi.org/10.7554/elife.54125" @default.
- W3039406103 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7326496" @default.
- W3039406103 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32602839" @default.
- W3039406103 hasPublicationYear "2020" @default.
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