Dendrites of Neocortical Pyramidal Neurons: The Key to Understand Intellectual Disability

Cell Mol Neurobiol. 2022 Jan;42(1):147-153. doi: 10.1007/s10571-021-01123-1. Epub 2021 Jul 3.

Abstract

Pyramidal neurons (PNs) are the most abundant cells of the neocortex and display a vast dendritic tree, divided into basal and apical compartments. Morphological and functional anomalies of PN dendrites are at the basis of virtually all neurological and mental disorders, including intellectual disability. Here, we provide evidence that the cognitive deficits observed in different types of intellectual disability might be sustained by different parts of the PN dendritic tree, or by a dysregulation of their interaction.

Keywords: Apical dendrite; Calcium; Cerebral cortex; Dendritic spike; Down syndrome; Fetal alcohol.

MeSH terms

  • Dendrites
  • Humans
  • Intellectual Disability*
  • Neocortex*
  • Pyramidal Cells / physiology