we have assessed the ability of thiorphan , an inhibitor of enkephalinase , to influence the potentiation of the nerve-mediated contractions of the rat isolated vas deferens ( pars prostatica ) by mammalian tachykinins [ substance p , ( sp ) ; neurokinin a ( nka ) ; and neurokinin b ( nkb ) ] and selective tachykinin agonists .
C0027847
neurokinin b
C0039241
tachykinin