| Literature DB >> 22511771 |
Béatrice Marcelin1, Joaquin N Lugo, Amy L Brewster, Zhiqiang Liu, Alan S Lewis, Shawn McClelland, Dane M Chetkovich, Tallie Z Baram, Anne E Anderson, Albert Becker, Monique Esclapez, Christophe Bernard.
Abstract
The dorsal and ventral regions of the hippocampus perform different functions. Whether the integrative properties of hippocampal cells reflect this heterogeneity is unknown. We focused on dendrites where most synaptic input integration takes place. We report enhanced backpropagation and theta resonance and decreased summation of synaptic inputs in ventral versus dorsal CA1 pyramidal cell distal dendrites. Transcriptional Kv4.2 down-regulation and post-transcriptional hyperpolarization-activated cyclic AMP-gated channel (HCN1/2) up-regulation may underlie these differences, respectively. Our results reveal differential dendritic integrative properties along the dorso-ventral axis, reflecting diverse computational needs.Entities:
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Year: 2012 PMID: 22511771 PMCID: PMC3366832 DOI: 10.1074/jbc.C112.367110
Source DB: PubMed Journal: J Biol Chem ISSN: 0021-9258 Impact factor: 5.157