Antioxidant role of heme oxygenase-1 in prehepatic portal hypertensive rats

Table 4 Effect of different treatments on vasodilatation of hepatic sinusoids (mean ± SE)

Treatment	Sinusoidal area
Sham (n = 258)	3.64 ± 0.08
PPVL (n = 245)	4.20 ± 0.02b
Sham + Sn-PPIX (n = 257)	3.45 ± 0.01
PPVL + Sn-PPIX (n = 249)	3.48 ± 0.04

The selected area for quantification was measured as pixels per area (square inch). The area standard used was 8.33 square inch.

^bP < 0.01 between PPVL and the other three groups, according to Neuman-Keuls' test.