Potential indicators of rejection assessed. Expression of (A) AST, (B) ALT, (C) TNF-α and (D) IL-1β in serum of patients from the 2 groups, up to 6 months post-liver transplantation. AST, aspartate transaminase; ALT, alanine transaminase; TNF-α, tumor necrosis factor-α; IL, interleukin; IFN-γ, interferon-γ; L-IFN, low in IFN group; H-IFN, high in IFN group. *P<0.05, **P<0.01 and ***P<0.001.