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Affinities of xanthine nucleosides at rat adenosine receptors.
| Nucleoside | A1a | A2Ab | A3c |
|---|---|---|---|
| 4a | 0.787 ± 0.282 μM | 27 ± 12% | 17 ± 1% |
| 4b | 10.5 ± 2.7 μM | < 10% | < 10% |
| 4c | 10.3 ± 3.5 μM | < 10% | < 10 % |
| 1,3-dibutyl1 (4d) | 4.19 μM | 19.5 μM | 6.03 μM |
vs. [3H]R-PIA binding at rat cerebral cortical membranes, expressed as mean Ki ± sem.
% displacement of [3H]CGS21680 from rat striatal membranes at 10−4 M or Ki.
% displacement of [125I]AB-MECA from transfected CHO membranes at 10−5 M or Ki.
