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Synaptic input activity affects the neurogenesis in adult hippocampal dentate gyrus (DG), while the input activity is potentiated by neurosteroid pregnenolone sulfate (PREGS). This study focused on exploring the effects of PREGS on the survival of newborn neurons in the DG of adult male mice. Proliferating cells were labeled with bromodeoxyuridine (BrdU) and injection (i.c.v.) of PREGS (3nmol for...
Infusion (i.c.v.) of β-amyloid 25–35 (Aβ 25–35 ) stimulates proliferation of progenitor cells in the hippocampal dentate gyrus (DG) of adult male mice, but a large population of the newborn cells will die in the 2nd week after birth, a critical period for neurite growth. Neurosteroid dehydroepiandrosterone (DHEA) has been demonstrated to promote neurite growth. Herein, we report that the DHEA-treatment...
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