Fig. 3

Effects of naltriben on the basal [Mg²⁺]_i. Each symbol represents the mean ± SE of the data obtained from 7 (a) or 6 (b) cells. Cells were perfused with Ca²⁺-free Tyrode’s solution except during the period of perfusion with NMDG Tyrode’s solution (0Na as indicated by the line with arrows in b). Gray bars on the top of each panel indicate the period of administration of 50 μM naltriben. *0.01 ≤ p < 0.05, **p < 0.01 versus the average of [Mg²⁺]_i just before the drug administration (at time − 2 min)