Figure 6. Time course of cyclic guanosine monophosphate (cGMP) production of rat brain particulate guanylyl cyclase with or without the stimulation of 1 micro Meter rat atrial natriuretic peptide sub (1-28) (ANP sub (1-28)) in the presence or absence of 4.4% halothane (n = 6). *P < 0.05 compared with corresponding basal cGMP production.