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- W2169158122 abstract "Alzheimer's disease (AD) is a progressive neurodegenerative disease associated with senile amyloid-β (Aβ) plaques, neuronal death, and cognitive decline. Neurogenesis in the adult hippocampus, which is notably affected by progressive neurodegeneration and Aβ pathology, is implicated in learning and memory regulation. Human postmortem brains of AD patients and AβPP/PS1 double transgenic mice show increased neurodegeneration. Leptin, an adipose-derived hormone, promotes neurogenesis in the adult hippocampus, but the way in which this process occurs in the AD brain is still unknown. Thus, we sought to determine if leptin stimulated the proliferation of neuronal precursors in AβPP/PS1 mice. We estimated the number proliferating hippocampal cells after intracerebroventricular administration of a lentiviral vector encoding leptin. After 3 months of treatment with leptin we observed an increase in the number of BrdU-positive cells in the subgranular zone of the dentate gyrus, as shown by morphometric analysis. This increase resulted mainly from an increased proliferation of neuronal precursors. Additionally, leptin led to an attenuation of Aβ-induced neurodegeneration, as revealed by Fluoro-Jade staining. Our results suggest that in AβPP/PS1 mice, leptin exerts changes resembling acute neurotrophic and neuroprotective effects. These effects could serve as the basis for the design of future treatment strategies in AD." @default.
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- W2169158122 date "2011-04-22" @default.
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- W2169158122 title "Leptin Induces Proliferation of Neuronal Progenitors and Neuroprotection in a Mouse Model of Alzheimer's Disease" @default.
- W2169158122 doi "https://doi.org/10.3233/jad-2011-102070" @default.
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