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- W4377138013 abstract "Abstract Alzheimer's disease (AD) is the most frequent cause of dementia in the elderly. Isoamericanin A (ISOA) is a natural lignan possessing great potential for AD treatment. This study investigated the efficacy of ISOA on memory impairments in the mice intrahippocampal injected with lipopolysaccharide (LPS) and the underlying mechanism. Y‐maze and Morris Water Maze data suggested that ISOA (5 and 10 mg/kg) ameliorated short‐ and long‐term memory impairments, and attenuated neuronal loss and lactate dehydrogenase activity. ISOA exerted anti‐inflammatory effect demonstrating by the reduction of ionized calcium‐binding adapter molecule 1 positive cells and suppression of marker protein and pro‐inflammation cytokines expressions induced by LPS. ISOA suppressed the nuclear factor kappa B (NF‐κB) signaling pathway by inhibiting IκBα phosphorylation and NF‐κB p65 phosphorylation and nuclear translocation. ISOA inhibited superoxide and intracellular reactive oxygen species accumulation by reducing nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activation, demonstrating by suppressing NADP + and NADPH contents, gp91 phox expression, and p47 phox expression and membrane translocation. These effects were enhanced in combination with NADPH oxidase inhibitor apocynin. The neuroprotective effect of ISOA was further proved in the in vitro models. Overall, our data revealed a novel pharmacological activity of ISOA: ameliorating memory impairment in AD via inhibiting neuroinflammation." @default.
- W4377138013 created "2023-05-21" @default.
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- W4377138013 date "2023-05-20" @default.
- W4377138013 modified "2023-10-17" @default.
- W4377138013 title "Isoamericanin A improves <scp>lipopolysaccharide</scp>‐induced memory impairment in mice through suppression of the nicotinamide adenine dinucleotide phosphateoxidase‐dependent nuclear factor kappa B signaling pathway" @default.
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- W4377138013 doi "https://doi.org/10.1002/ptr.7858" @default.
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