TABLE 1.

NECA potency (Log EC₅₀) in the absence and presence of antagonists and/or Brilliant Black BN at the adenosine A₁ and A₃ receptors

Data represent the mean ± S.E.M. of 3 to 11 experiments conducted in triplicate.

	Brilliant Black BN
	0 μM	5 μM	50 μM	500 μM
A1-CHO
NECA	−8.0 ± 0.3	−8.3 ± 0.3	−8.2 ± 0.2	−8.0 ± 0.1
+ 1 μM XAC-X-BY630	−7.3 ± 0.3	−7.7 ± 0.2	−7.9 ± 0.1	−8.0 ± 0.1
+ 1 μM XAC	−7.0 ± 0.2	−7.3 ± 0.3	−7.7 ± 0.4	−7.9 ± 0.1
A3-CHO
NECA	−7.8 ± 0.2	−7.7 ± 0.2	−8.0 ± 0.2	−7.7 ± 0.1
+ 1 μM XAC-X-BY630	−6.7 ± 0.2	−6.5 ± 0.3	−7.2 ± 0.2	−7.5 ± 0.1
+ 1 μM XAC	−6.7 ± 0.3	−6.4 ± 0.3	−7.4 ± 0.1	−7.4 ± 0.2