Urea and albumin synthesis rates for the AdIL-1Ra transfected porcine hepatocytes. Urea (a) and albumin (b) synthesis rates for the AdIL-1Ra transfected porcine hepatocytes (MOI 125). The results are presented as normalized to non-transfected hepatocytes from the same culture day and are expressed as means ± SD. *p < 0.05, ‡p < 0.005, and †p < 0.001 vs. rate for non-transfection hepatocytes from the same culture day. IL-1Ra, interleukin-1 receptor antagonist; MOI, multiplicity of infection; AdIL-1Ra, adenoviral vector encoding human IL-1Ra gene.