Systemic phosphatidylcholine pretreatment protects canine esophageal mucosa during acute experimental biliary reflux

Figure 2 Changes in constitutive (left panel) and inducible NOS (right panel) activities [fmol (mg protein)-1/min] in esophageal tissue from saline-treated (empty box), bile-treated (black box), bile+PC-treated (gray box) and bile+7-NI-treated (checked box) animals. The plots demonstrate the median (horizontal line in the box), the 25^th (lower whisker) and 75^th (upper whisker) percentiles, respectively. ^aP < 0.05 between groups vs saline-treated control group values. ^cP < 0.05 between bile+7-NI-treated and bile+PC-treated groups vs bile-treated group values.