Indigo carmine enhances phenylephrine-induced contractions in an isolated rat aorta.

However, in the endothelium-denuded rings, indigo carmine (10 -5 M) had no effect on the phenylephrine-induced maximum contraction and produced a slightly significant leftward shift (ED 50 : P < 0.01) in the phenylephrine concentration-response curve ( Fig. 1B , Table 1 ).

also in 1,762 other papers