Fig. 4

Localization of BrdU-retaining cells in 8-week-old mouse kidneys using immunofluorescence. a BrdU+ LRCs (red) scattered among normal adult kidneys; b BrdU-retaining cells in cortex, medulla, and papilla. BrdU-retaining cells were quantified by counting the number of positive nuclei in five randomly selected fields of sections under a fluorescence microscope (magnification × 200). BrdU 5-bromo-2'-deoxyuridine, LRCs label-retaining cells