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  • Title: Differential regulation of neurogenesis in two neurogenic regions of APPswe/PS1dE9 transgenic mice.
    Author: Niidome T, Taniuchi N, Akaike A, Kihara T, Sugimoto H.
    Journal: Neuroreport; 2008 Sep 17; 19(14):1361-4. PubMed ID: 18766011.
    Abstract:
    Neurogenesis occurs in two neurogenic regions of the adult mammalian brain: the subgranular zone and the subventricular zone. We have recently demonstrated that the number of bromodeoxyuridine-positive and doublecortin-positive cells is decreased in the subgranular zone of amyloid precursor protein with a Swedish mutation and presenilin-1 with a deletion of exon 9 transgenic mice, an animal model of Alzheimer's disease. In this study, we characterized neurogenesis in the subventricular zone of amyloid precursor protein with a Swedish mutation and presenilin-1 with a deletion of exon 9 transgenic mice at 9 months of age and compared it with neurogenesis in the subgranular zone. In the subventricular zone, the number of proliferating cell nuclear antigen-positive and bromodeoxyuridine-positive cells were normal. In the subgranular zone, the number of proliferating cell nuclear antigen-positive cells was normal; however, the number of bromodeoxyuridine-positive cells was significantly decreased. These results suggest that neurogenesis, probably reflecting the survival of neural progenitor cells, differs between the subgranular zone and the subventricular zone.
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