Fig. 2
From: Modulation of Mg2+ influx and cytoplasmic free Mg2+ concentration in rat ventricular myocytes
Concentration-dependent activation of the Mg2+ influx by naltriben. The initial rates of rise in [Mg2+]i, as estimated and shown in Fig. 1, were plotted as a function of naltriben concentration (0, 2, 5, 10, 20, and 50 μM). Each symbol represents mean ± SE of the rates at each concentration (see Table 1). A solid line was drawn by least-squares fit of the data with the Hill-type curve as described in “Results”