Abstract
The chapter discusses biochemical responses in an attempt to shed light on functional biochemical target cells with β-adrenoceptors. There are two types of target cells with these receptors. The first type is a glial cell in which cAMP is formed, and the second type is a neuron in which the immediate early genes are activated. These two target cells and their possible relationship are discussed. The extent to which the toxin lowers the β-CAMP response is used as a measure of the extent to which β-receptors have a glial localization. The chapter also describes the cellular localization of immediate early gene responses to β- receptor activation in the brain to see if this agrees with the localization of the β-CAMP response. Immediate early genes (IEGs) are a group of genes that are rapidly activated by various neurotransmitters, hormones, and growth factors. It was found that release of the brain norepinephrine (NE) onto β-receptors by the α2-blocker, yohimbine (which antagonizes the inhibition of NE release by α2-agonists), caused cells in many regions of the brain to stain positively for c-fos.
Original language | English |
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Pages (from-to) | 303-307 |
Number of pages | 5 |
Journal | Progress in Brain Research |
Volume | 94 |
Issue number | C |
DOIs | |
State | Published - Jan 1 1992 |
Bibliographical note
Funding Information:Supported in part by grants MH45265, MH08618 and AFOSR 89-0208.
ASJC Scopus subject areas
- Neuroscience (all)