the influence of pertussis toxin on the effects of adenosine , the adenosine receptor agonist ( - ) -n6-phenylisopropyladenosine ( pia ) and the m-cholinoceptor agonist carbachol on heart rate and atrioventricular ( av ) conduction was investigated in spontaneously beating isolated perfused guinea-pig hearts .
C0001443
adenosine
C0031484
phenylisopropyladenosine