The idea of one day being able to diagnose Alzheimer's disease with a simple blood test is fast becoming a reality.
Silent, this neurodegenerative disease which affects more than a million French people sets in several years before the first symptoms appear, which means that the diagnosis is most often delayed.
A diagnosis all the more difficult as specialists are forced to resort to expensive and sometimes invasive examinations, involving imaging of the brain by PET scan (positron emission tomography) which can be supplemented by an analysis of the cerebrospinal fluid by a puncture. lumbar.
In addition to memory tests, which are very non-specific and do not make it possible to distinguish Alzheimer's from other types of dementia, these are currently the only methods to detect an accumulation of the Tau protein in the brain of patients as well as the famous amyloid plaques ( amyloid beta protein aggregates around…
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