Effect of BAL treatment on animal survival in fulminant hepatic failure rats. Survival curves of the no cell AdIL-1Ra(–), porcine AdIL-1Ra(–), no cell rIL-1Ra(+), and porcine AdIL-1Ra(+) groups. No cell AdIL-1Ra(–), no cells in the BAL device; porcine AdIL-1Ra(–), non-transfected porcine hepatocytes in the BAL device; no cell rIL-1Ra(+), BAL device without cells but recombinant human IL-1Ra was continuously infused through a venous line; porcine AdIL-1Ra(+), porcine hepatocytes transfected with adenoviral vector encoding human IL-1Ra. IL-1Ra, interleukin-1 receptor antagonist; GalN, D-galactosamine; BAL, bioartificial liver.