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- W2113756801 abstract "Ataxia telangiectasia (A-T) is an inherited disease, the most prominent feature of which is ataxia caused by degeneration of cerebellar neurons and synapses. The mechanisms underlying A-T neurodegeneration are still unclear, and many factors are likely to be involved. AMP-activated protein kinase (AMPK) is a sensor of energy balance, and research on its function in neural cells has gained momentum in the last decade. The dual roles of AMPK in neuroprotection and neurodegeneration are complex, and they need to be identified and characterized. Using an Atm (ataxia telangiectasia mutated) gene deficient mouse model, we showed here that: (a) upregulation of AMPK phosphorylation and elevation of reactive oxygen species (ROS) coordinately occur in the cerebella of Atm−/− mice; (b) hydrogen peroxide induces AMPK phosphorylation in primary mouse cerebellar astrocytes in an Atm-independent manner; (c) administration of the novel antioxidant monosodium luminol (MSL) to Atm−/− mice attenuates the upregulation of both phosphorylated-AMPK (p-AMPK) and ROS, and corrects the neuromotor deficits in these animals. Together, our results suggest that oxidative activation of AMPK in the cerebellum may contribute to the neurodegeneration in Atm−/− mice, and that ROS and AMPK signaling pathways are promising therapeutic targets for treatment of A-T and other neurodegenerative diseases." @default.
- W2113756801 created "2016-06-24" @default.
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- W2113756801 date "2012-02-01" @default.
- W2113756801 modified "2023-10-16" @default.
- W2113756801 title "Activation of AMP-activated protein kinase in cerebella of Atm−/− mice is attributable to accumulation of reactive oxygen species" @default.
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- W2113756801 doi "https://doi.org/10.1016/j.bbrc.2012.01.008" @default.
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