Research Paper Volume 7, Issue 6 pp 435—449

Premature aging of the hippocampal neurogenic niche in adult Bmal1‐ deficient mice

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Figure 4. Survival of NPCs was enhanced in Bmal1‐/‐ mice. Surviving BrdU+ cells were analyzed 28 days after the final BrdU administration. (A) Representative photomicrographs of BrdU+ cells. (B) Quantification of BrdU+ cells in DG. The number of BrdU+ cells was significantly smaller in Bmal1‐/‐ as compared to Bmal1+/+. (C) Linear regression of BrdU+ cells one day and 28 days after final BrdU‐injection showed significantly steeper slope in Bmal1+/+ as compared to Bmal1‐/‐. (D) Representative photomicrographs showing caspase3+ cells. (E) Quantification of caspase3+ cells in DG. The number of caspase3+ cells was significantly lower in Bmal1‐/‐ as compared to Bmal1+/+. Values are given as mean + SEM, *: P <0.05, scale bar = 50 μm.