Conserved properties of dendritic trees in four cortical interneuron subtypes.
Conserved properties of dendritic trees in four cortical interneuron subtypes.
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DOI:
10.1038/srep00089
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发表时间:
2011
影响因子:
4.6
通讯作者:
Kawaguchi, Yasuo
中科院分区:
文献类型:
--
作者:
Kubota, Yoshiyuki;Karube, Fuyuki;Nomura, Masaki;Gulledge, Allan T.;Mochizuki, Atsushi;Schertel, Andreas;Kawaguchi, Yasuo
Dendritic trees influence synaptic integration and neuronal excitability, yet appear to develop in rather arbitrary patterns. Using electron microscopy and serial reconstructions, we analyzed the dendritic trees of four morphologically distinct neocortical interneuron subtypes to reveal two underlying organizational principles common to all. First, cross-sectional areas at any given point within a dendrite were proportional to the summed length of all dendritic segments distal to that point. Consistent with this observation, total cross-sectional area was almost perfectly conserved at bifurcation points. Second, dendritic cross-sections became progressively more elliptical at more proximal, larger diameter, dendritic locations. Finally, computer simulations revealed that these conserved morphological features limit distance dependent filtering of somatic EPSPs and facilitate distribution of somatic depolarization into all dendritic compartments. Because these features were shared by all interneurons studied, they may represent common organizational principles underlying the otherwise diverse morphology of dendritic trees.
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影响因子:
4.3
作者:
van Elburg RA;van Ooyen A
通讯作者:
van Ooyen A
DOI:
10.1113/expphysiol.1983.sp002761
发表时间:
1983-01-01
影响因子:
--
作者:
HOUCHIN, J;MAXWELL, DJ;BROWN, AG
通讯作者:
BROWN, AG
影响因子:
2.5
作者:
Jaffe, DB;Carnevale, NT
通讯作者:
Carnevale, NT
影响因子:
64.8
作者:
Mainen, ZF;Sejnowski, TJ
通讯作者:
Sejnowski, TJ
影响因子:
3.4
作者:
RINZEL, J;RALL, W
通讯作者:
RALL, W