Detection of NT in livers of mice injected with d-GalN and LPS. Mice were injected i.p. with PBS (a), d-GalN (b), LPS (c), or the mixture of d-GalN and LPS (d), and livers were removed 6 h after injection. Liver sections were immunohistochemically stained by anti-NT antibody. Magnification, ×200.