Fig. 6.
Escitalopram increases potency of isoproterenol-stimulated whole-cell cAMP. Three days of treatment with 10 μM escitalopram increases the potency of isoproterenol-stimulated cAMP production but has no effect on maximal accumulation in C6 cells expressing the cytoplasmic cAMP sensor (A). This is reversed 24 hours after escitalopram withdrawal (B). r-Citalopram has no effect on isoproterenol-stimulated cytoplasmic cAMP in C6 cells (C and D). #P < 0.05, compared with top end of vehicle control curve. n = 4.