Figure 2.

Effects of cyclic AMP (cAMP), protein kinase A (PKA) inhibitor with cAMP (represented as PKA inhibitor on graph), and heptanol on the longitudinal internal resistance (ri), which is shown as a relative value. A relative value of 1.0 represents the control mean value before treatment of reagents. cAMP (1 μM) and PKA inhibitor (10 μM) were applied for 30 min. Heptanol (1 mM) was applied for 1 min. Each bar corresponds to the mean ± SEM. *P<0.001 versus the control value. Reproduced from reference 38