to determine whether neutral endopeptidase ( nep ) , also called enkephalinase ( ec 3.4.24.11 ) , modulates the effects of exogenous and endogenous tachykinins in vivo , we studied the effects of aerosolized phosphoramidon , a specific nep inhibitor , on the responses to aerosolized substance p ( sp ) and on the atropine-resistant response to vagus nerve stimulation ( 10 v , 5 ms for 20 s ) in guinea pigs .
C0039241
tachykinins
C0038585
substance p