Figure 1. The effect of H2S on hepatic I/R injury in young and old rats.
(A) The serum levels of H2S were significantly increased in the young rats that received a preconditioning dose of 20 µmol/kg NaHS compared to rats in the I/R group. (B) The serum levels of H2S were significantly increased in the old rats that received a preconditioning dose of 20 µmol/kg NaHS compared to the rats in the I/R group. (C) The serum levels for alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were determined in the young rats after 6 h of reperfusion. (D) The serum levels for ALT and AST were determined in the old rats after 6 h of reperfusion. (E) Suzuki’s scores for the livers of the young rats after 24 h of reperfusion. (F) Suzuki’s scores for the livers of the old rats after 24 h of reperfusion. **P<0.01, indicates significant differences from the respective control groups.