in the present study , the inhibitory effects of ci-914 , a novel cardiotonic agent , as well as other recently identified positive inotropic agents and reference phosphodiesterase ( pde ) inhibitors on the different molecular forms of cardiac pde were examined , and correlated with changes in tissue levels of cyclic amp and cyclic gmp , and the contractility of isolated guinea pig left atria produced by these agents .
C0018787
cardiac
C0225860
left