The JAK2/STAT3 axis is a major transducer of HN-mediated neuroprotective activity. Abeta-dependent inactivation of the JAK2/STAT3 axis in hippocampal neurons causes cholinergic dysfunction via pre- and post-synaptic mechanisms, which leads to memory impairment related to AD. This provides not only a novel pathological hallmark of AD but also a novel target in AD therapy.
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Chiba et al. (2009) studied this question.
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