Fig. 5. The mean percent neutrophils measured in cytospins of lung lavage fluid is shown (error bar is SD). Compared with control (n = 4), intratracheal endotoxin (n = 5) resulted in an increase in the percent neutrophils (*P < 0.05). Both dobutamine (n = 7) and dopexamine (n = 7) infusions decreased this effect of endotoxin (†P < 0.05). PBS = phosphate-buffered saline; LPS = lipopolysaccharide.