Fig. 2.

A. PV - portal vein; BD - bile duct; HA - hepatic artery; CLV - centrilobular vein; KC - Kupffer cell. Shown are representative pictures of a portal triad (upper panel) and a centrilobular vein (lower panel) from the same individual, taken with a 20X light microscope. Kupffer cells are CD68 stained and appear brown on a counterstained blue background. B. Biopsies from 51/76 subjects with ≥ 1 postal vein and ≥1 centrilobular vein were evaluated for a total of 122 portal and 95 centrilobular veins. Kupffer cells were quantified as described. Groups were compared using Wilcoxon rank-sum tests.