Fig. 2. Number of BrdU-labeled cells at various time-points after BrdU injection. BrdU was given once a day for 12 consecutive days. The time-points of investigation reflect 1 day, 3 days, 7 days, etc., after the last injection of BrdU. Numbers are absolute cell counts per animal. The other curves depict the numbers of BrdU-labeled cells that show a co-localization with doublecortin (DCX), ß-III-tubulin, NeuN or S100ß.