the presence of either adenosine deaminase ( 2 u.ml-1 ) or the adenosine receptor antagonist , 8-phenyltheophylline ( 5 x 10 ( -6 ) m ) in the perfusate of norepinephrine-stimulated hearts augmented the increase in lvdp and +/- dp/dtmax by 10-20 % but reduced the increase in coronary flow by 34 % .
C0018787
hearts
C0225897
lvdp