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XB-ART-26747
Cell Mol Neurobiol 1989 Jun 01;92:193-206. doi: 10.1007/bf00713028.
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Excitatory amino acids: the involvement of second messengers in the signal transduction process.

Smart TG .


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1. Excitatory amino acids (EAA) can activate second messenger systems in addition to a direct gating of ion channels. A discrete coupling between novel EAA receptor subtypes and second messenger systems has been previously proposed. 2. EAAs have been suggested to activate both adenylate and guanylate cyclases and also to induce phosphoinositide (PI) turnover. The increased PI turnover was observed in both central neurons and glia, and a "quisqualate-type" receptor has been most frequently involved, which may differ from the quisqualate receptor previously defined by electrophysiological studies. 3. The roles of EAA-induced calcium influx into neurons and raised intracellular calcium levels are discussed regarding the activation of phosphoinositide turnover. 4. This review examines the data supporting a link between EAA receptors and second messengers and considers whether there is any need for adopting new EAA receptor subtypes. Also, the use of the Xenopus laevis oocyte for expressing EAA receptors and studying any putative links to second messenger systems is discussed.

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References [+] :
Baudry, Excitatory amino acids inhibit stimulation of phosphatidylinositol metabolism by aminergic agonists in hippocampus. , Pubmed