Figure 2.

Contractile responses elicited by cumulative application of sarafotoxin 6c in non-cultured segments of human internal mammary arteries in the absence (control) and presence of 0.1 μmol/l BQ788. The results are shown as mean values ± S.E.M of six experiments. Statistical analyses of the maximum contraction, comparing control with BQ 788, was performed using Student's t-test, where P < 0.05 (*) was considered significant.