Cited by 98Neuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanismsMedical and Biological Sciences

Postnatal maturation of the layer III pyramidal neurons in the human prefrontal cortex: a quantitative Golgi analysis

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Koenderink, M.J.Th., Uylings, H.B.M., Mrzljak, L.·1994·Brain Research

Abstract

In this study we examined the morphological maturation of the basal dendritic field of layer III pyramidal neurons located in the human dorsolateral prefrontal cortex in subjects ranging from 7.5 months after birth up to 27 years. The sections were stained with the Golgi-Cox method and the three-dimensional branching pattern was measured with a semi-automatic dendrite measuring system. Results show a rapid growth phase of the dendritic field from 7.5 months after birth up to one year. A marked increase in total dendritic length is observed, for which elongation of the terminal segments, longer intermediate segments and an increase in number of segments is an explanation. The dendritic length appears to have stabilized after one year, leading us to conclude that the postnatal morphological maturation of the layer III pyramidals does not continue well into childhood, but is completed at a much younger age. Additionally we analyzed the effect of varying section thickness on dendritic parameters and found no tendency for higher dendritic values with increasing section thickness for the range of thickness values of the histological sections used.

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  • The tremendous growth of the human neocortex during postnatal development is due to elaboration of dendritic arbors and a 4-fold increase in glial cell numbers.

    “the tremendous growth of the neocortex during postnatal development is due to elaboration of dendritic arbors and a 4-fold increase in glial cell numbers (13, 14).”
  • Adult neocortical neuron numbers are attained at around the time of birth in humans.

    “because adult neocortical neuron numbers are attained at around the time of birth in humans”

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Research works printed but not linked: 3

  1. Goldman-Rakic, P.S., Isseroff, A., Schwartz, M.L. and Bugbee, N.M., Neurobiology of cognitive development. In P. Mussen (Ed.), Handbook of Child Psychology: Biology and Infancy Devel- opment, Wiley, New York, 1983, pp. 281-344.
  2. Mrzljak, L., Uylings, H.B.M., van Eden, C.G. and Judas, M., Neuronal development in human prefrontal cortex in prenatal and postnatal states. In H.B.M. Uylings, C.G. van Eden, J.P.C. de Bruin, M.A. Corner, and M.G.P. Feenstra (Eds.), The Pre- frontal Cortex: its Structure, Function and Pathology, Progress in Brain Research, Vol. 85, Elsevier, Amsterdam, 1990 pp. 185-222.
  3. Van der Loos, H., Dendro-dendritic Junctions in the Cerebral Cortex, Ph.D. Thesis, Stare, Haarlem, 1959, 99 pp. (in Dutch).

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Authors
Koenderink, M. J. T., Uylings, H. B. M., & Mrzljak, L.
Affiliations
Yale University (US)
Corresponding author
Koenderink, M.J.Th.
Venue
Brain Research
Publisher
Elsevier BV
Published
1994-08
Volume
653
Issue
1-2
Pages
173-182
ISSN
0006-8993 (ISSN-L)
OpenAlex
W4240325318
Cited by
98
References
29
Citations by year
2025: 2 · 2023: 4 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 13 · 2017: 4 · 2016: 3 · 2015: 2 · 2014: 3 · 2012: 5
FWCI
0.64
Type
journal article
Language
en
Open access
Locations
Brain Research (publishedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Anatomy › Medical and Biological Sciences
Keywords
layer III pyramidal neurons, postnatal brain development, dendritic length, dendritic morphology, Golgi-Cox staining

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