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Caspase activation without apoptosis: insight into Aβ initiation of neurodegeneration

New work in a mouse model of Alzheimer's disease suggests that early-stage synaptic and memory impairments are caused by abnormal activation of a protease and a phosphatase, both of which could be targeted by inhibitory drugs.

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Figure 1: Soluble Aβ leads to elevation of intracellular calcium13 and caspase activation1 that in turn both activate calcineurin, a critical mediator of both long-term depression phenomenon and spine loss, causing deafferentation and likely additional pro-apoptotic stimulation.

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Correspondence to Bradley T Hyman.

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Hyman, B. Caspase activation without apoptosis: insight into Aβ initiation of neurodegeneration. Nat Neurosci 14, 5–6 (2011). https://doi.org/10.1038/nn0111-5

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