[Calcium-dependence of bradykinin-induced contraction in the isolated longitudinal muscle of the guinea pig ileum].

The calcium-dependence of the bradykinin-induced contraction was demonstrated on the isolated logitudinal smooth muscle of the guinea-pig ileum. Using the "La-method" for measuring 45Ca entry into smooth muscle cells we were able to show, that bradykinin significantly increases the intracellular Ca-concentration. This effect of bradykinin was dose-dependent.