Fig. 8. (A ) Summarized data for the effect of propofol on steady state cyclic adenosine monophosphate (cAMP) production in rat ventricular myocytes. (B ) Summarized data for the effect of propofol on isoproterenol-stimulated cAMP production. (C ) Summarized data for the effect of propofol on forskolin (FSK)-stimulated cAMP production. Results are expressed as picomoles per milligram protein. *  P < 0.05 compared with isoproterenol. n = 10 hearts. Ctl = control.