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lüll Stress-induced tau phosphorylation: functional neuroplasticity or neuronal vulnerability?Rissman RAJ Alzheimers Dis 2009[]; 18 (2): 453-7Abnormally phosphorylated tau protein is a key component of the pathology seen in neurodegenerative tauopathies, such as Alzheimer's disease (AD). Despite its association with disease, tau phosphorylation (tau-P) also plays an important role in neuroplasticity, such as dendritic/synaptic remodeling seen in the hippocampus in response to environmental challenges, such as stress. To define the boundaries between neuroplasticity and neuropathology, studies have attempted to characterize the paradigms, stimuli, and signaling intermediates involved in stress-induced tau-P. Supporting an involvement of stress in AD are data demonstrating alterations in stress pathways and peptides in the AD brain and epidemiological data implicating stress exposure as a risk factor for AD. In this review, the question of whether stress-induced tau-P can be used as a model for examining the relationship between functional neuroplasticity and neuronal vulnerability will be discussed.|*Stress, Psychological/metabolism/pathology/physiopathology[MESH]|Animals[MESH]|Cell Survival/physiology[MESH]|Humans[MESH]|Neuronal Plasticity/*physiology[MESH]|Neurons/*physiology[MESH]|Phosphorylation/physiology[MESH]|tau Proteins/*metabolism[MESH] |