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The effect of adenosine derivatives on synaptic potentials in the rat hippocampus. The percentage inhibition of fEPSP responses is shown for CPA, irradiated 4a* (irradiated 4a) and non-irradiated 4a. The effect of irradiated 4a* is also shown when superfused together with 200 μM theophylline (4a* + T). Each point on the graph represents an average of two or three observations.
