Fig. 10.

Original tracing (A) and mean data (B, n = 6) illustrating that the combined treatment with benzamil (10 μmol/l) and ouabain (3 mmol/l) completely eliminated Na⁺-induced vasodilation. Note that diltiazem (10 μmol/l) was able to fully reverse the vasoconstriction while Na⁺ replacement had no effect. Statistical analyses are described in the text. C compares the magnitude of responses observed in each setting.