PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2991802-5 1985 A role for endogenous adenosine in the modulation of hippocampal noradrenaline release is supported by these findings: (1) that blockade of adenosine receptors by methylxanthines, especially by 8-phenyltheophylline, increased, whereas (2) inhibition of the uptake of adenosine decreased the evoked release of noradrenaline and (3) that deamination of endogenous extracellular adenosine by addition of adenosine deaminase to the medium enhanced the evoked transmitter release. methylxanthine 163-178 adenosine deaminase Oryctolagus cuniculus 401-420