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- Title
Neurotransmitter Changes during Development of Cortical Neuronal Cultures.
- Authors
Boespflug, Odile; Swaiman, Kenneth F.
- Abstract
Benzodiazepine (BDZ) ligands clonazepam (CLO) and Ro5-4864 which preferentially bind to neuronal and non-neuronal elements, respectively, have been used to follow neuronal and non-neuronal development in fetal murine cortical cultures. CLO-displaceable BDZ binding, choline acetyltransferase (CAT) activity, high-affinity δ-aminobutyric acid (GABA) uptake, and glutamic acid decarboxylase (GAD) activity reached a maximum value at the end of the second week in culture reflecting maximum neuronal maturation and development. There is a developmental order of these four functions: CAT activity (main enzyme in the synthesis of acetylcholine, a stimulating neurotransmitter) reached maximal levels first, 3H-GABA uptake and CLO-displaceable flunitrazepam receptor binding reached maximal levels 1 day later, and 4 days later GAD activity (primary enzyme in the synthesis of GABA, an inhibitor neurotransmitter) reached maximal levels. Copyright © 1986 S. Karger AG, Basel
- Publication
Developmental Neuroscience, 1986, Vol 8, Issue 2, p102
- ISSN
0378-5866
- Publication type
Article
- DOI
10.1159/000112245