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Cell cycle activation occurs in the olfactory bulb but not in the CA1 region of the hippocampus in AblPP/tTA mice and decreases with time. Bromodeoxyuridine (BrdU) labeling of wild-type versus AblPP/tTA mice. Cohort A = BrdU labeling at 2 weeks, euthanized at 2 weeks; Cohort B = BrdU labeling at 4 weeks, euthanized at 4 weeks; Cohort C = BrdU labeling at 2 weeks, euthanized at 6 weeks. Scalebars: Dentate, Olfactory bulb = 400 μm, CA1 = 800 μm.
