Altered blood-brain barrier permeability in rats with prehepatic portal hypertension turns to normal when portal pressure is lowered

Figure 3 Plasma ammonia levels. significant elevation of plasma ammonia content in PH14d rats correspond to hatchet column. After 40 days of portal vein ligation, the portal pressure normalized, but plasma ammonia is still high (black column).^bP <0.001 and ^aP < 0.05, comparied to Sham column.