Fig. 2.
Immunohistochemistry for interleukin (IL)-32 (a,d), Toll-like receptor (TLR)-3 (b) and caspase 1 (c) in age-matched controls. (a–c) Biliary epithelial cells in common bile ducts of non-hepatobiliary diseases (congenital heart anomalies) expressed TLR-3 (b) and caspase 1 (c), but lacking or faintly expressed IL-32 (a) was faint or negative. Original magnification ×200. (d) Interlobular bile duct in neonatal hepatitis was negative for IL-32 (arrow). Original magnification ×400.