Changes in portal blood pressure (PBP, mmHg) and mean arterial blood pressure (ABP, mmHg) after the administration of either saline (vehicle) or Na2S, a fast-releasing H2S donor, into the femoral vein (IV).Healthy rats: Na2S 0.8 mmol/kg/b.w. (n=6); Na2S 2.4 mmol/kg/b.w. (n=6), cirrhotic rats Na2S 0.8 mmol/kg/b.w. (n=6); Na2S 2.4 mmol/kg/b.w. (n=6).*P<0.05 – vs. baseline. #P< 0.05 – Healthy – 0.4 mmol/kg/b.w. of Na2S series vs. Cirrhotic – 0.4 mmol/kg/b.w. of Na2S series. ^P<0.05 – Healthy – 0.04 mmol/kg/b.w. of Na2S series vs. Cirrhotic – 0.04 mmol/kg/b.w. of Na2S series.