Figure 2.
Concentration response curves to (a) human-, mouse-, rat- and (b) porcine A-, porcine B- and goby U-II in human right atrial trabeculae. Number of tissues/patients for species homologues were: human, 9/9; mouse, 6/6; rat, 8/8; porcine A, 7/7; porcine B, 7/6; goby, 7/6. Positive inotropic effects are mean±s.e.mean, expressed as a percentage of responses to 9.25 mM Ca2+.