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Fig. 6. Higher proliferation of pseudoglandular cells in the knockout mouse
liver. (A-D) PCNA immunostaining shows an increase of proliferation
in pseudoglandular cells in 17.5-day (C) and neonatal (D) knockout mouse
livers (arrowheads), compared with wild-type mice (arrows, A,B). PV, portal
vein. Scale bars: 50 µm. Proliferation indexes of hepatic cells, given as
number of PCNA-positive cells per portal biliary epithelial cell (light brown)
or nonperiportal hepatocyte/pseudoglandular cell (purple), show a decrease and
increase of proliferation in periportal biliary epithelial cells and
nonperiportal pseudoglandular cells of the knockout mouse liver, respectively,
compared with wild-type mice (E; wild type, n=3; knockout,
n=3). Bars indicate the standard deviations of the means.