passages.id: BioInfer.d368.s0__text
passages.type: Sentence
passages.text: In the hippocampus, ATP gamma S, an ATP analogue more resistant to catabolism than ATP, was virtually devoid of effect on tritium release, and the effect of ATP was prevented by the ecto-5'-nucleotidase inhibitor alpha,beta-methylene ADP (100 microM), by adenosine deaminase (2 U/ml) and by the A1 adenosine receptor antagonist 1,3-dipropyl-8-cyclopentylxanthine (DPCPX, 20 nM).