from the results , it was assumed that ( a ) the effects of tad , tpd and ttfd might relate to their common chemical structure of the disulfide , especially to the alkyldisulfide chain , ( b ) the effects are irrevelant to their common activity as an vitamin b1 and to either cholinergic or adrenergic effect , and ( c ) a mutual dependence is seen between the positive inotropic effect and the negative chronotropic effect .
C0016865
ttfd
C0039840
vitamin b1