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We examined the pharmacological profile of 1-aminoindan-1,5-dicarboxylic acid (AIDA), a rigid (carboxyphenyl)glycine derivative acting on metabotropic glutamate receptors (mGluRs). In cells transfected with mGluR1a, AIDA competitively antagonized the stimulatory responses of glutamate and (1S,3R)-1-aminocyclopentane-1,3-dicarboxylic acid [(1S,3R)-ACPD] on(More)
Anatomical, biochemical and electrophysiological studies have previously shown that cortico-striatal terminals contain abundant presynaptic group 2 metabotropic glutamate (mGlu) receptors. Using brain slices we have previously shown that these receptors inhibit depolarization-induced transmitter release. Using microdialysis in freely moving rats, we now(More)
All 16 2-(2'-carboxy-3'-phenylcyclopropyl)glycine (PCCGs) stereoisomers 32-47 have been prepared from the corresponding racemic aldehydes 12-15 following an enantiodivergent synthetic protocol. Compounds 32-47 were evaluated by a number of binding and functional experiments as potential ligands for several classes of excitatory amino acid receptors,(More)
The design of new heterocyclic derivatives as modulatory agents at EAA receptors is described. In particular, the potent and selective activity at the NMDA receptor of trans-4-hydroxypipecolic acid-4-sulfate, as well as the neuroprotective properties of substituted thiokynurenates, a new class of competitive antagonists at the glycine site of the NMDA(More)
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