Surgical menopause may prime brain for stroke, Alzheimer's

... To make matters worse, untreated or late-treated rats also began an abnormal, robust production of Alzheimer's disease-related proteins in the CA3 region, even becoming hypersensitive to one of the most toxic of the beta amyloid proteins that are a ...

http://medicalxpress.com/news/2013-03-surgical-menopause-prime-brain-alzheimer.html