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Binding of adenosine receptor ligands to brain of adenosine receptor knock-out ...
Halldner, Linda; Lopes, Luisa V.; Daré, Elisabetta; Lindström, Karin; Johansson, Björn; Ledent, Catherine; Cunha, Rodrigo A.; Fredholm, Bertil B.The adenosine receptor agonist 2-[ p-(2-carboxyethyl)phenylethylamino]-5'- N-ethylcarboxamidoadenosine (CGS 21680) is generally considered to be a selective adenosine A 2A receptor ligand. However, the compound has previously been shown to exhibit binding characteristics that are not compatible with adenosine A 2A receptor binding, at least in brain regions other than the striatum. We have examined binding of [...
Adenosine A3 receptors in the rat hippocampus: Lack of interaction with A1 rece...
Lopes, Luísa V.; Rebola, Nelson; Costenla, Ana Rita; Halldner, Linda; Jacobson, Marlene A.; Oliveira, Catarina R.; Richardson, Peter J.Adenosine acts as a neuromodulator in the hippocampus essentially through activation of inhibitory A1 receptors. Using single-cell PCR analysis, we found that CA1 pyramidal cells coexpress A1 receptor mRNA together with that of another adenosine receptor, the A3 receptor. As occurs for the A1 receptor, Western blot analysis indicated that the A3 receptor is also located in hippocampal nerve terminals. However, ...
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