Retrograde modulation of dendritic geometry in the vertebrate brain during development.

Détails

ID Serval
serval:BIB_FA0F7241B148
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Retrograde modulation of dendritic geometry in the vertebrate brain during development.
Périodique
Brain Research. Developmental Brain Research
Auteur(s)
Blaser P.F., Catsicas S., Clarke P.G.
ISSN
0165-3806 (Print)
ISSN-L
0165-3806
Statut éditorial
Publié
Date de publication
12/1990
Volume
57
Numéro
1
Pages
139-142
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
The neurons of the chick's isthmo-optic nucleus (ION) are known to innervate the retina. We here show that removing the retinal primordia causes the ION dendritic trees to be much less polarized than normal. Our observations were made at 11 embryonic days, which is before the isthmo-optic neurons become dependent on the retina for survival. Other parameters such as neuronal size were unchanged, so the effect seems to have been specific to dendritic shape. Our interpretation is that early target removal eliminates a retrograde signal that normally enhances dendritic polarization.
Mots-clé
Animals, Brain/anatomy & histology, Brain/growth & development, Chick Embryo, Dendrites/ultrastructure, Eye/growth & development, Neural Pathways/physiology, Retina/growth & development
Pubmed
Création de la notice
20/01/2008 18:48
Dernière modification de la notice
03/03/2018 22:55
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