Figure 4From: The role of ATP and adenosine in the control of hepatic blood flow in the rabbit liver in vivoThe changes in (a) hepatic arterial pressure responses (Δ HAP) and (b) portal venous pressure responses (Δ PVP) to intra-arterial injection of ATP. The adenosine receptor antagonist 8-phenyltheophylline (10 μM) significantly decreased hepatic arterial responses to ATP, while portal venous responses were unaffected (* p < 0.05, ** p < 0.01, compared with before 8-SPT). The error bars in the graphs represent the SE.Back to article page