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• W1973677044 abstract "The generation of reactive oxygen species causes cellular oxidative damage, and has been implicated in the etiology of Alzheimer’s disease (AD). L-NNNBP, a new chiral pyrrolyl α-nitronyl nitroxide radical synthesized in our department, shows potential antioxidant effects. The purpose of this study was to investigate the protective effects of L-NNNBP on β-amyloid (Aβ) deposition and memory deficits in an AD model of APP/PS1 mice. In cultured cortical neurons, L-NNNBP acted as an antioxidant by quenching reactive oxygen species, inhibiting lipid peroxidation, nitrosative stress, and stimulating cellular antioxidant defenses. L-NNNBP inhibited cell apoptosis induced by Aβ exposure. In vivo treatment with L-NNNBP for 1 month induced a marked decrease in brain Aβ deposition and tau phosphorylation in the blinded study on APP/PS1 transgenic mice (1 mM in drinking water, initiated when the mice were 6 months old). The L-NNNBP-treated APP/PS1 mice showed decreased astrocyte activation and improved spatial learning and memory compared with the vehicle-treated APP/PS1 mice. These actions were more potent compared with that of curcumin, a natural product, and TEMPO, a nitroxide radical, which are used as free radical scavengers in clinics. These results proved that the newly synthesized L-NNNBP was an effective therapeutic agent for the prevention and treatment of AD." @default.
• W1973677044 created "2016-06-24" @default.
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• W1973677044 date "2012-12-05" @default.
• W1973677044 modified "2023-10-16" @default.
• W1973677044 title "A New Chiral Pyrrolyl α-Nitronyl Nitroxide Radical Attenuates β-Amyloid Deposition and Rescues Memory Deficits in a Mouse Model of Alzheimer Disease" @default.
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• W1973677044 doi "https://doi.org/10.1007/s13311-012-0168-z" @default.
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