The selective adenosine A2 receptor agonist, CGS 21680, is a potent depressant of cerebral cortical neuronal activity.


The A2 selective adenosine receptor agonist 2-p-(2-carboxyethyl)phenethylamino-5'-N-ethylcarboxamidoadenosine (CGS 21680) depressed the spontaneous, acetylcholine- and glutamate-evoked firing of rat cerebral sensorimotor cortical neurons. Iontophoretically applied CGS 21680 was equipotent with adenosine as a depressant and its actions were antagonized by 8… (More)


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