the only statistically significant effects of adenosine ( 10 ( -6 ) -10 ( 4 ) m ) and of atp ( 10 ( -6 ) -10 ( -4 ) m ) on normal action potential characteristics were a slight dose-dependent shortening of the action potential by adenosine and a depolarization by atp , 10 ( -4 ) m .
C0001443
adenosine
C0001480
atp