"A chemical hormone released in the body as a reaction to stress could be a key trigger of the mechanism for the late onset of Alzheimer's disease, according to a study by researchers at Temple University.
"Previous studies have shown that the chemical hormone corticosteroid, which is released into the body's blood as a stress response, is found at levels two to three times higher in Alzheimer's patients than non-Alzheimer's patients...."
http://medicalxpress.com/news/2013-06-stress-hormone-trigger-mechanism-onset.html
Joshi, Y. B., Chu, J. and Praticò, D. (2013), Knockout of 5-lipoxygenase prevents dexamethasone-induced tau pathology in 3xTg mice. Aging Cell. doi: 10.1111/acel.12096 Abstract.
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