Figure 1.

Effect of NAC on CCl₄-induced elevations in serum liver enzyme activities in rats. A. ALT in CCl₄-treated rats with different doses of NAC for four weeks. B. AST in CCl₄-treated rats with different doses of NAC for four weeks. The data were expressed as means ± standard error of the mean of eight rats in each group. *P<0.05, vs. the control group, #P<0.05, vs. the CCl₄ group, as determined by one-way analysis of variance and Dunnett’s test. NAC, N-acetylcysteine; CCl₄, carbon tetrachloride; ALT, alanine aminotransferase; AST, aspartate aminotransferase.