Figure 6. Y27632 lowers the Ca²⁺ sensitivity in male but not female SMAs and abolishes the LNNA effect in male SMAs.

A) Ca²⁺ sensitivity in female SMAs in PSS and 10 µM Y27632. B) Ca²⁺ sensitivity in male SMAs in PSS and 10 µM Y27632. C) Ca²⁺ sensitivity in female SMAs in PSS and in 10 µM LNNA + 10 µM Y27632. D) Ca²⁺ sensitivity in male SMAs in PSS and in 10 µM LNNA +10 µM Y27632. Numbers next to symbols represent the number of vessel segments and error bars represent sem. Average FC₅₀ ± sem values are given and significant changes in the FC₅₀ values are marked (star).