Lower blood flow first sign of Alzheimer’s
Scientists have identified the first physiological sign of Alzheimer’s disease -a decrease in blood flow in the brain -using a powerful tool to better understand the progression of the debilitating disease. Led by Alan Evans, a professor at Montreal Neurological Institute (MNI) in Canada, the researchers analysed over 7,700 brain images from 1,171 people in various stages of Alzheimer’s progression, using a variety of techniques including magnetic resonance imaging (MRI) and positron emission tomography (PET). Blood and cerebrospinal fluid were also analysed, as as well as the subjects’ level of…
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