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@ARTICLE{Krueppel:136284,
author = {Krueppel, Roland and Remy, Stefan and Beck, Heinz},
title = {{D}endritic integration in hippocampal dentate granule
cells.},
journal = {Neuron},
volume = {71},
number = {3},
issn = {0896-6273},
address = {New York, NY},
publisher = {Elsevier},
reportid = {DZNE-2020-02606},
pages = {512-528},
year = {2011},
abstract = {Hippocampal granule cells are important relay stations that
transfer information from the entorhinal cortex into the
hippocampus proper. This process is critically determined by
the integrative properties of granule cell dendrites.
However, their small diameter has so far hampered efforts to
examine their properties directly. Using a combination of
dual somatodendritic patch-clamp recordings and multiphoton
glutamate uncaging, we now show that the integrative
properties of granule cell dendrites differ substantially
from other principal neurons. Due to a very strong dendritic
voltage attenuation, the impact of individual synapses on
granule cell output is low. At the same time, integration is
linearized by voltage-dependent boosting mechanisms, only
weakly affected by input synchrony, and independent of input
location. These experiments establish that dentate granule
cell dendritic properties are optimized for linear
integration and strong attenuation of synaptic input from
the entorhinal cortex, which may contribute to the sparse
activity of granule cells in vivo.},
keywords = {Action Potentials: physiology / Animals / Computer
Simulation: statistics $\&$ numerical data / Dendrites:
physiology / Dentate Gyrus: cytology / Dentate Gyrus:
physiology / Electrophysiology: methods / Excitatory
Postsynaptic Potentials: physiology / Microscopy: methods /
Patch-Clamp Techniques: methods / Pyramidal Cells:
physiology / Rats / Rats, Wistar / Synaptic Transmission:
physiology},
cin = {AG Remy},
ddc = {610},
cid = {I:(DE-2719)1013006},
pnm = {341 - Molecular Signaling (POF3-341)},
pid = {G:(DE-HGF)POF3-341},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:21835347},
doi = {10.1016/j.neuron.2011.05.043},
url = {https://pub.dzne.de/record/136284},
}